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| CMS-HIN-21-014 ; CERN-EP-2024-176 | ||
| Bottom quark energy loss and hadronization with $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ nuclear modification factors using pp and PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV | ||
| CMS Collaboration | ||
| 11 September 2024 | ||
| Submitted to J. High Energy Phys. | ||
| Abstract: The production cross sections of $ \mathrm{B}_{\mathrm{s}}^{0} $ and $ {\mathrm{B}^{+}} $ mesons are reported in proton-proton (pp) collisions recorded by the CMS experiment at the CERN LHC with a center-of-mass energy of 5.02 TeV. The data sample corresponds to an integrated luminosity of 302 pb$^{-1}$. The cross sections are based on measurements of the $ \mathrm{B}_{\mathrm{s}}^{0} \to \mathrm{J}/\psi (\mu^{+}\mu^{-})\,\phi(1020) (\mathrm{K^+} \mathrm{K^-}) $ and $ {\mathrm{B}^{+}} \to \mathrm{J}/\psi (\mu^{+}\mu^{-})\,\mathrm{K^+} $ decay channels. Results are presented in the transverse momentum ($ p_{\mathrm{T}} $) range 7-50 GeV/$c$ and the rapidity interval $ |y| < $ 2.4 for the $ {\mathrm{B}} $ mesons. The measured $ p_{\mathrm{T}} $-differential cross sections of $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ in pp collisions are well described by fixed-order plus next-to-leading logarithm perturbative quantum chromodynamics calculations. Using previous PbPb collision measurements at the same nucleon-nucleon center-of-mass energy, the nuclear modification factors, $ R_{\mathrm{AA}} $, of the $ {\mathrm{B}} $ mesons are determined. For $ p_{\mathrm{T}} > $ 10 GeV/$c$, both mesons are found to be suppressed in PbPb collisions (with $ R_{\mathrm{AA}} $ values significantly below unity), with less suppression observed for the $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons. In this $ p_{\mathrm{T}} $ range, the $ R_{\mathrm{AA}} $ values for the $ {\mathrm{B}^{+}} $ mesons are consistent with those for inclusive charged hadrons and $ \mathrm{D^0} $ mesons. Below 10 GeV/$c$, both $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ are found to be less suppressed than either inclusive charged hadrons or $ \mathrm{D^0} $ mesons, with the $ \mathrm{B}_{\mathrm{s}}^{0} R_{\mathrm{AA}} $ value consistent with unity. The $ R_{\mathrm{AA}} $ values found for the $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ are compared to theoretical calculations, providing constraints on the mechanism of bottom quark energy loss and hadronization in the quark-gluon plasma, the hot and dense matter created in ultrarelativistic heavy ion collisions. | ||
| Links: e-print arXiv:2409.07258 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; CADI line (restricted) ; | ||
| Figures | |
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Figure 1:
Invariant mass distributions of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) candidates, for the lowest (upper) and highest (lower) $ p_{\mathrm{T}} $ ranges in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The bottom section in each panel shows the pulls, calculated as the difference between the data points and the fit results, divided by the uncertainty in data. |
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Figure 1-a:
Invariant mass distributions of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) candidates, for the lowest (upper) and highest (lower) $ p_{\mathrm{T}} $ ranges in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The bottom section in each panel shows the pulls, calculated as the difference between the data points and the fit results, divided by the uncertainty in data. |
png pdf |
Figure 1-b:
Invariant mass distributions of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) candidates, for the lowest (upper) and highest (lower) $ p_{\mathrm{T}} $ ranges in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The bottom section in each panel shows the pulls, calculated as the difference between the data points and the fit results, divided by the uncertainty in data. |
png pdf |
Figure 1-c:
Invariant mass distributions of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) candidates, for the lowest (upper) and highest (lower) $ p_{\mathrm{T}} $ ranges in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The bottom section in each panel shows the pulls, calculated as the difference between the data points and the fit results, divided by the uncertainty in data. |
png pdf |
Figure 1-d:
Invariant mass distributions of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) candidates, for the lowest (upper) and highest (lower) $ p_{\mathrm{T}} $ ranges in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The bottom section in each panel shows the pulls, calculated as the difference between the data points and the fit results, divided by the uncertainty in data. |
png pdf |
Figure 2:
The $ p_{\mathrm{T}} $-differential cross sections of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) mesons in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The vertical bars (shaded boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths. The global systematic uncertainty includes uncertainties in the integrated luminosity and the external branching fractions. The comparison with the calculation from FONLL (open boxes) is also shown. The lower panels show that the measured cross sections deviate from the FONLL calculations by less than 20%, and the two are consistent within uncertainty. |
png pdf |
Figure 2-a:
The $ p_{\mathrm{T}} $-differential cross sections of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) mesons in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The vertical bars (shaded boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths. The global systematic uncertainty includes uncertainties in the integrated luminosity and the external branching fractions. The comparison with the calculation from FONLL (open boxes) is also shown. The lower panels show that the measured cross sections deviate from the FONLL calculations by less than 20%, and the two are consistent within uncertainty. |
png pdf |
Figure 2-b:
The $ p_{\mathrm{T}} $-differential cross sections of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) mesons in pp collisions at $ \sqrt{s}= $ 5.02 TeV. The vertical bars (shaded boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths. The global systematic uncertainty includes uncertainties in the integrated luminosity and the external branching fractions. The comparison with the calculation from FONLL (open boxes) is also shown. The lower panels show that the measured cross sections deviate from the FONLL calculations by less than 20%, and the two are consistent within uncertainty. |
png pdf |
Figure 3:
The $ p_{\mathrm{T}} $ dependence of the nuclear modification factor of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) mesons using PbPb and pp collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. The vertical bars (boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths and not uncertainties.The global systematic uncertainty includes the uncertainties in the integrated luminosity, $ T_{\mathrm{AA}} $, and the number of minimum bias events [52]. For the $ {\mathrm{B}^{+}} $ meson, four theoretical calculations are also shown for comparison: TAMU [76,24], DREENA-A [77,78], CUJET3.0 [79,80,81], and AdS/CFT HH [82,83] with the diffusion coefficient either dependent or independent of the quark momentum. For the $ \mathrm{B}_{\mathrm{s}}^{0} $ meson, three theoretical calculations are shown for comparison: TAMU [76,24], DREENA-A [77,78], and CUJET3.0 [79,80,81]. The line width of the theoretical calculation from Refs. [76,24] indicates the uncertainty in the total b quark coalescence probability (no shadowing is applied). The rapidity range is $ |y| < $ 2.4 for all the theoretical predictions and, therefore, these predictions can only be compared to the measurements in the range of $ p_{\mathrm{T}} > $ 10 GeV/$c$. |
png pdf |
Figure 3-a:
The $ p_{\mathrm{T}} $ dependence of the nuclear modification factor of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) mesons using PbPb and pp collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. The vertical bars (boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths and not uncertainties.The global systematic uncertainty includes the uncertainties in the integrated luminosity, $ T_{\mathrm{AA}} $, and the number of minimum bias events [52]. For the $ {\mathrm{B}^{+}} $ meson, four theoretical calculations are also shown for comparison: TAMU [76,24], DREENA-A [77,78], CUJET3.0 [79,80,81], and AdS/CFT HH [82,83] with the diffusion coefficient either dependent or independent of the quark momentum. For the $ \mathrm{B}_{\mathrm{s}}^{0} $ meson, three theoretical calculations are shown for comparison: TAMU [76,24], DREENA-A [77,78], and CUJET3.0 [79,80,81]. The line width of the theoretical calculation from Refs. [76,24] indicates the uncertainty in the total b quark coalescence probability (no shadowing is applied). The rapidity range is $ |y| < $ 2.4 for all the theoretical predictions and, therefore, these predictions can only be compared to the measurements in the range of $ p_{\mathrm{T}} > $ 10 GeV/$c$. |
png pdf |
Figure 3-b:
The $ p_{\mathrm{T}} $ dependence of the nuclear modification factor of $ {\mathrm{B}^{+}} $ (left) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (right) mesons using PbPb and pp collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. The vertical bars (boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths and not uncertainties.The global systematic uncertainty includes the uncertainties in the integrated luminosity, $ T_{\mathrm{AA}} $, and the number of minimum bias events [52]. For the $ {\mathrm{B}^{+}} $ meson, four theoretical calculations are also shown for comparison: TAMU [76,24], DREENA-A [77,78], CUJET3.0 [79,80,81], and AdS/CFT HH [82,83] with the diffusion coefficient either dependent or independent of the quark momentum. For the $ \mathrm{B}_{\mathrm{s}}^{0} $ meson, three theoretical calculations are shown for comparison: TAMU [76,24], DREENA-A [77,78], and CUJET3.0 [79,80,81]. The line width of the theoretical calculation from Refs. [76,24] indicates the uncertainty in the total b quark coalescence probability (no shadowing is applied). The rapidity range is $ |y| < $ 2.4 for all the theoretical predictions and, therefore, these predictions can only be compared to the measurements in the range of $ p_{\mathrm{T}} > $ 10 GeV/$c$. |
png pdf |
Figure 4:
Comparison of the nuclear modification factor as a function of $ p_{\mathrm{T}} $ of $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons with $ \mathrm{B}_{c} $ mesons [27] (left) as well as with $ \mathrm{D^0} $ mesons [86] and inclusive charged hadrons [60] (right) in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. The vertical bars (boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths. The global systematic uncertainties, written in text on the left plot and depicted in shaded boxes around $ R_{\mathrm{AA}}= $ 1 on the right plot, comprise the uncertainties in $ T_{\mathrm{AA}} $, the number of minimum-bias events, and the luminosity in pp collisions. The dashed lines and the open boxes in the $ \mathrm{B}_{c} $ data (left plot) represent bin-to-bin-uncorrelated and total uncertainties, respectively. |
png pdf |
Figure 4-a:
Comparison of the nuclear modification factor as a function of $ p_{\mathrm{T}} $ of $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons with $ \mathrm{B}_{c} $ mesons [27] (left) as well as with $ \mathrm{D^0} $ mesons [86] and inclusive charged hadrons [60] (right) in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. The vertical bars (boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths. The global systematic uncertainties, written in text on the left plot and depicted in shaded boxes around $ R_{\mathrm{AA}}= $ 1 on the right plot, comprise the uncertainties in $ T_{\mathrm{AA}} $, the number of minimum-bias events, and the luminosity in pp collisions. The dashed lines and the open boxes in the $ \mathrm{B}_{c} $ data (left plot) represent bin-to-bin-uncorrelated and total uncertainties, respectively. |
png pdf |
Figure 4-b:
Comparison of the nuclear modification factor as a function of $ p_{\mathrm{T}} $ of $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons with $ \mathrm{B}_{c} $ mesons [27] (left) as well as with $ \mathrm{D^0} $ mesons [86] and inclusive charged hadrons [60] (right) in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. The vertical bars (boxes) correspond to statistical (systematic) uncertainties. The horizontal bars reflect the bin widths. The global systematic uncertainties, written in text on the left plot and depicted in shaded boxes around $ R_{\mathrm{AA}}= $ 1 on the right plot, comprise the uncertainties in $ T_{\mathrm{AA}} $, the number of minimum-bias events, and the luminosity in pp collisions. The dashed lines and the open boxes in the $ \mathrm{B}_{c} $ data (left plot) represent bin-to-bin-uncorrelated and total uncertainties, respectively. |
| Tables | |
png pdf |
Table 1:
Summary of systematic uncertainties (in %) for the $ {\mathrm{B}^{+}} $ (upper table) and $ \mathrm{B}_{\mathrm{s}}^{0} $ (lower one) meson cross section as a function of $ p_{\mathrm{T}} $. The systematic uncertainties in luminosity and branching fractions are global uncertainties that are applied equally to all $ p_{\mathrm{T}} $ ranges. |
| Summary |
| In summary, the differential cross sections of $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons as functions of transverse momentum ($ p_{\mathrm{T}} $) in proton-proton (pp) collisions at a center-of-mass energy of 5.02 TeV have been measured with the CMS detector at the LHC. The mesons were reconstructed via the exclusive decay channels $ {\mathrm{B}^{+}} \to \mathrm{J}/\psi (\mu^{+}\mu^{-})\,\mathrm{K^+} $ and $ \mathrm{B}_{\mathrm{s}}^{0} \to \mathrm{J}/\psi (\mu^{+}\mu^{-})\,\phi(1020) (\mathrm{K^+} \mathrm{K^-}) $ in the $ p_{\mathrm{T}} $ intervals of 5-60 and 7-50 GeV/$c$ for $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $, respectively. The measured $ p_{\mathrm{T}} $-differential cross sections of $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons in pp collisions are well-described by fixed-order plus next-to-leading logarithm calculations. The nuclear modification factors ($ R_{\mathrm{AA}} $) are obtained from these differential cross sections and the corresponding measurements in lead-lead collisions. The $ R_{\mathrm{AA}} $ of $ \mathrm{B}_{\mathrm{s}}^{0} $ and $ {\mathrm{B}^{+}} $ mesons are significantly lower than unity for $ p_{\mathrm{T}} > $ 10 GeV/$c$, while at lower $ p_{\mathrm{T}} $ the $ \mathrm{B}_{\mathrm{s}}^{0} $ meson results hint at having larger $ R_{\mathrm{AA}} $ values than found for $ {\mathrm{B}^{+}} $ mesons. The $ R_{\mathrm{AA}} $ data for $ {\mathrm{B}^{+}} $ and $ \mathrm{B}_{\mathrm{s}}^{0} $ mesons are compared to theoretical calculations, providing constraints for the mechanisms of bottom quark energy loss and hadronization in the quark-gluon plasma. The results are also compared to experimental $ R_{\mathrm{AA}} $ values for charm and light-flavor hadrons. The $ {\mathrm{B}^{+}} $ meson $ R_{\mathrm{AA}} $ values are compatible with those found for generic charged hadrons and $ \mathrm{D^0} $ mesons in the $ p_{\mathrm{T}} $ range from 10 to 30 GeV/$c$, while the $ R_{\mathrm{AA}} $ values from 7 to 10 GeV/$c$ are consistent with expectations based on the quark mass dependence of parton energy loss. |
| References | ||||
| 1 | F. Karsch and E. Laermann | Thermodynamics and in-medium hadron properties from lattice QCD | in Quark-Gluon Plasma III, R. Hwa (ed.), 2003 | hep-lat/0305025 |
| 2 | E . V. Shuryak | Theory of hadronic plasma | Sov. Phys. JETP 47 (1978) 212 | |
| 3 | J. C. Collins and M. J. Perry | Superdense matter: neutrons or asymptotically free quarks? | PRL 34 (1975) 1353 | |
| 4 | W. Busza, K. Rajagopal, and W. van der Schee | Heavy ion collisions: the big picture, and the big questions | Ann. Rev. Nucl. Part. Sci. 68 (2018) 339 | 1802.04801 |
| 5 | A. Andronic et al. | Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions | EPJC 76 (2016) 107 | 1506.03981 |
| 6 | X. Dong, Y.-J. Lee, and R. Rapp | Open heavy-flavor production in heavy-ion collisions | Ann. Rev. Nucl. Part. Sci. 69 (2019) 417 | 1903.07709 |
| 7 | L. Apolinàrio, Y.-J. Lee, and M. Winn | Heavy quarks and jets as probes of the QGP | Prog. Part. Nucl. Phys. 127 (2022) 103990 | 2203.16352 |
| 8 | J. D. Bjorken | Energy loss of energetic partons in quark-gluon plasma: possible extinction of high $ p_{\mathrm{T}} $ jets in hadron-hadron collisions | Fermilab, 1982 link |
|
| 9 | R. Baier, D. Schiff, and B. G. Zakharov | Energy loss in perturbative QCD | Ann. Rev. Nucl. Part. Sci. 50 (2000) 37 | hep-ph/0002198 |
| 10 | CMS Collaboration | Observation and studies of jet quenching in PbPb collisions at $ \sqrt{s_{_{\mathrm{NN}}}} = $ 2.76 TeV | Phys. Rev. C 84 (2011) 024906 | CMS-HIN-10-004 1102.1957 |
| 11 | ATLAS Collaboration | Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at $ \sqrt{s_{_{\mathrm{NN}}}}= $ 2.76 TeV with the ATLAS detector at the LHC | PRL 105 (2010) 252303 | 1011.6182 |
| 12 | A. Beraudo et al. | Extraction of heavy-flavor transport coefficients in QCD matter | Nucl. Phys. A 979 (2018) 21 | 1803.03824 |
| 13 | ALICE Collaboration | $ \mathrm{K^0_S} $ and $ \Lambda $ production in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 2.76 TeV | PRL 111 (2013) 222301 | 1307.5530 |
| 14 | STAR Collaboration | Strangeness enhancement in Cu+Cu and Au+Au collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 200 GeV | PRL 108 (2012) 072301 | 1107.2955 |
| 15 | STAR Collaboration | Energy and system size dependence of $ \phi $ meson production in Cu+Cu and Au+Au collisions | PLB 673 (2009) 183 | 0810.4979 |
| 16 | BRAHMS Collaboration | Kaon and pion production in central Au+Au collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 62.4 GeV | PLB 687 (2010) 36 | 0911.2586 |
| 17 | STAR Collaboration | Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC | PLB 785 (2018) 551 | 1709.00773 |
| 18 | PHENIX Collaboration | $ \phi $ meson production in the forward/backward rapidity region in Cu$ + $Au collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 200 GeV | Phys. Rev. C 93 (2016) 024904 | 1509.06337 |
| 19 | ALICE Collaboration | Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions | Nature Phys. 13 (2017) 535 | 1606.07424 |
| 20 | J. Rafelski and B. Müller | Strangeness production in the quark-gluon plasma | PRL 48 (1982) 1066 | |
| 21 | D. Molnar and S. A. Voloshin | Elliptic flow at large transverse momenta from quark coalescence | PRL 91 (2003) 092301 | nucl-th/0302014 |
| 22 | V. Greco, C. M. Ko, and P. Levai | Parton coalescence at RHIC | Phys. Rev. C 68 (2003) 034904 | nucl-th/0305024 |
| 23 | V. Greco, C. M. Ko, and R. Rapp | Quark coalescence for charmed mesons in ultrarelativistic heavy ion collisions | PLB 595 (2004) 202 | nucl-th/0312100 |
| 24 | M. He, R. J. Fries, and R. Rapp | Heavy flavor at the large hadron collider in a strong coupling approach | PLB 735 (2014) 445 | 1401.3817 |
| 25 | ALICE Collaboration | Measurement of $ \mathrm{D^0} $, $ \mathrm{D^+} $, $ \mathrm{D}^{*+} $ and $ \mathrm{D}_{s}^{+} $ production in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV | JHEP 10 (2018) 174 | 1804.09083 |
| 26 | CMS Collaboration | Measurement of $ \mathrm{B}_{s}^{0} $ meson production in pp and PbPb collisions at $ {\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}} = $ 5.02 TeV | PLB 796 (2019) 168 | CMS-HIN-17-008 1810.03022 |
| 27 | CMS Collaboration | Observation of the $ \mathrm{B}_{c} $ meson in PbPb and pp collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV and measurement of its nuclear modification factor | PRL 128 (2022) 252301 | CMS-HIN-20-004 2201.02659 |
| 28 | CMS Collaboration | Evidence for X(3872) in PbPb collisions and studies of its prompt production at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV | PRL 128 (2022) 032001 | CMS-HIN-19-005 2102.13048 |
| 29 | CMS Collaboration | Overview of high-density QCD studies with the CMS experiment at the LHC | CMS-HIN-23-011 2405.10785 |
|
| 30 | CMS Collaboration | Luminosity measurement in proton-proton collisions at 5.02 TeV in 2017 at CMS | CMS Physics Analysis Summary, 2021 CMS-PAS-LUM-19-001 |
CMS-PAS-LUM-19-001 |
| 31 | M. Cacciari, M. Greco, and P. Nason | The $ p_{\mathrm{T}} $ spectrum in heavy-flavour hadroproduction | JHEP 05 (1998) 007 | hep-ph/9803400 |
| 32 | M. Cacciari and P. Nason | Charm cross sections for the Tevatron Run II | JHEP 09 (2003) 006 | hep-ph/0306212 |
| 33 | M. Cacciari et al. | Theoretical predictions for charm and bottom production at the LHC | JHEP 10 (2012) 137 | 1205.6344 |
| 34 | CMS Collaboration | Measurement of the $ {\mathrm{B}^{\pm}} $ meson nuclear modification factor in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV | PRL 119 (2017) 152301 | CMS-HIN-16-011 1705.04727 |
| 35 | CMS Collaboration | Measurement of the $ {\mathrm{B}^{+}} $ production cross section in pp\ collisions at $ \sqrt{s} = $ 7 TeV | PRL 106 (2011) 112001 | CMS-BPH-10-004 1101.0131 |
| 36 | CMS Collaboration | Measurement of the $ \mathrm{B}_{s}^{0} $ production cross section in pp collisions at $ \sqrt{s} = $ 7 TeV | PRL 106 (2011) 252001 | CMS-BPH-10-005 1104.2892 |
| 37 | CMS Collaboration | Measurement of the $ \mathrm{B}_{s}^{0} $ production cross section with $ \mathrm{B}_{s}^{0} \to \mathrm{J}/\psi \phi $ decays in pp collisions at $ \sqrt{s} = $ 7 TeV | PRD 84 (2011) 052008 | CMS-BPH-10-013 1106.4048 |
| 38 | ATLAS Collaboration | Measurement of the differential cross-section of $ {\mathrm{B}^{+}} $ meson production in pp collisions at $ \sqrt{s} = $ 7 TeV at ATLAS | JHEP 10 (2013) 042 | 1307.0126 |
| 39 | LHCb Collaboration | Measurement of the $ {\mathrm{B}^{\pm}} $ production cross-section in pp collisions at $ \sqrt{s}= $ 7 TeV | JHEP 04 (2012) 093 | 1202.4812 |
| 40 | LHCb Collaboration | Measurement of $ {\mathrm{B}} $ meson production cross-sections in proton-proton collisions at $ \sqrt{s} = $ 7 TeV | JHEP 08 (2013) 117 | 1306.3663 |
| 41 | LHCb Collaboration | Measurement of $ b $-hadron production fractions in 7 TeV pp collisions | PRD 85 (2012) 032008 | 1111.2357 |
| 42 | LHCb Collaboration | Measurements of $ \mathrm{B}_{c}^{+} $ production and mass with the $ {\mathrm{B}_{c}^{+}} \to {\mathrm{J}/\psi} {\pi^{+}} $ decay | PRL 109 (2012) 232001 | 1209.5634 |
| 43 | CMS Collaboration | Measurement of the ratio of the production cross sections times branching fractions of $ {\mathrm{B}_{c}^{\pm}} \to {\mathrm{J}/\psi} {\pi^{\pm}} $ and $ {{\mathrm{B}^{\pm}}} \to {\mathrm{J}/\psi} {\mathrm{K^{\pm}}} $ and $ \mathcal{B}({\mathrm{B}_{c}^{\pm}} \to {\mathrm{J}/\psi} {\pi^{\pm}}{\pi^{\pm}}{\pi}^{\mp})/\mathcal{B}({\mathrm{B}_{c}^{\pm}} \to {\mathrm{J}/\psi} {\pi^{\pm}}) $ in pp collisions at $ \sqrt{s} = $ 7 TeV | JHEP 01 (2015) 063 | CMS-BPH-12-011 1410.5729 |
| 44 | LHCb Collaboration | Study of the production of $ \Lambda_{b}^{0} $ and $ \overline{\mathrm{B}}^{0} $ hadrons in pp collisions and first measurement of the $ {\Lambda_{b}^{0}} \to {\mathrm{J}/\psi} {\mathrm{p}} {\mathrm{K^-}} $ branching fraction | Chin. Phys. C 40 (2016) 011001 | 1509.00292 |
| 45 | LHCb Collaboration | Measurement of $ \mathrm{B}_{c}^{+} $ production in proton-proton collisions at $ \sqrt{s}= $ 8 TeV | PRL 114 (2015) 132001 | 1411.2943 |
| 46 | ATLAS Collaboration | Measurement of the relative $ {\mathrm{B}_{c}^{\pm}}/{{\mathrm{B}}}^{\pm} $ production cross section with the ATLAS detector at $ \sqrt{s}= $ 8 TeV | PRD 104 (2021) 012010 | 1912.02672 |
| 47 | CMS Collaboration | Measurement of the total and differential inclusive $ {\mathrm{B}^{+}} $ hadron cross sections in pp collisions at $ \sqrt{s}= $ 13 TeV | PLB 771 (2017) 435 | CMS-BPH-15-004 1609.00873 |
| 48 | LHCb Collaboration | Measurement of the $ {\mathrm{B}^{\pm}} $ production cross-section in pp collisions at $ \sqrt{s} = $ 7 and 13 TeV | JHEP 12 (2017) 026 | 1710.04921 |
| 49 | LHCb Collaboration | Measurement of the $ \mathrm{B}_{c}^{-} $ meson production fraction and asymmetry in 7 and 13 TeV pp collisions | PRD 100 (2019) 112006 | 1910.13404 |
| 50 | CMS Collaboration | Study of $ {\mathrm{B}} $ meson production in $ \mathrm{p} \mathrm{Pb} $ collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV using exclusive hadronic decays | PRL 116 (2016) 032301 | CMS-HIN-14-004 1508.06678 |
| 51 | LHCb Collaboration | Measurement of $ {\mathrm{B}^{+}} $, $ \mathrm{B}_{s}^{0} $ and $ \Lambda_{b}^{0} $ production in $ \mathrm{p}\mathrm{Pb} $ collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 8.16 TeV | PRD 99 (2019) 052011 | 1902.05599 |
| 52 | CMS Collaboration | Observation of B$ ^0_s $ mesons and measurement of the B$ ^0_s $/B$ ^+ $ yield ratio in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV | PLB 829 (2022) 137062 | CMS-HIN-19-011 2109.01908 |
| 53 | CMS Collaboration | HEPData record for this analysis | link | |
| 54 | Tracker Group of the CMS Collaboration | The CMS phase-1 pixel detector upgrade | JINST 16 (2021) P02027 | 2012.14304 |
| 55 | CMS Collaboration | Track impact parameter resolution for the full pseudorapidity coverage in the 2017 dataset with the CMS phase-1 pixel detector | CMS Detector Performance Note CMS-DP-2020-049, 2020 CDS |
|
| 56 | CMS Collaboration | Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $ \sqrt{s}= $ 13 TeV | JINST 13 (2018) P06015 | CMS-MUO-16-001 1804.04528 |
| 57 | CMS Collaboration | Performance of the CMS Level-1 trigger in proton-proton collisions at $ \sqrt{s} = $ 13 TeV | JINST 15 (2020) P10017 | CMS-TRG-17-001 2006.10165 |
| 58 | CMS Collaboration | The CMS trigger system | JINST 12 (2017) P01020 | CMS-TRG-12-001 1609.02366 |
| 59 | CMS Collaboration | The CMS experiment at the CERN LHC | JINST 3 (2008) S08004 | |
| 60 | CMS Collaboration | Charged-particle nuclear modification factors in PbPb and pPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV | JHEP 04 (2017) 039 | CMS-HIN-15-015 1611.01664 |
| 61 | CMS Collaboration | Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at $ \sqrt{s_{_{\mathrm{NN}}}} = $ 5.02 TeV | PLB 785 (2018) 14 | CMS-HIN-16-002 1711.09738 |
| 62 | CMS Collaboration | Transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at $ \sqrt{s} = $ 0.9 and 2.36 TeV | JHEP 02 (2010) 041 | CMS-QCD-09-010 1002.0621 |
| 63 | CMS Collaboration | Performance of CMS muon reconstruction in pp collision events at $ \sqrt{s}= $ 7 TeV | JINST 7 (2012) P10002 | CMS-MUO-10-004 1206.4071 |
| 64 | Particle Data Group | Review of Particle Physics | Prog. Theo. Expt. Phys. 2022 (2022) | |
| 65 | T. Sjöstrand et al. | An introduction to PYTHIA 8.2 | Comput. Phys. Commun. 191 (2015) 159 | 1410.3012 |
| 66 | CMS Collaboration | Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements | EPJC 80 (2020) 4 | CMS-GEN-17-001 1903.12179 |
| 67 | CMS Collaboration | Event generator tunes obtained from underlying event and multiparton scattering measurements | EPJC 76 (2016) 155 | CMS-GEN-14-001 1512.00815 |
| 68 | GEANT4 Collaboration | GEANT 4---a simulation toolkit | NIM A 506 (2003) 250 | |
| 69 | D. J. Lange | The EvtGen particle decay simulation package | NIM A 462 (2001) 152 | |
| 70 | E. Barberio, B. van Eijk, and Z. Was | PHOTOS: A universal Monte Carlo for QED radiative corrections in decays | Comput. Phys. Commun. 66 (1991) 115 | |
| 71 | A. Hocker et al. | TMVA--Toolkit for Multivariate Data Analysis with ROOT: Users guide | Technical Report CERN-OPEN-2007-007, 2007 | physics/0703039 |
| 72 | CMS Collaboration | Upsilon production cross-section in pp collisions at $ \sqrt{s}= $ 7 TeV | PRD 83 (2011) 112004 | CMS-BPH-10-003 1012.5545 |
| 73 | M. J. Oreglia | A Study of the Reactions $ {\psi'} \to \gamma \gamma \psi $ | PhD thesis, Stanford University, Appendix D, 1980 | |
| 74 | M. Pivk and F. R. Le Diberder | $ \hbox{ $_s$ }\mathcal{P}lot $: a statistical tool to unfold data distributions | NIM A 555 (2005) 356 | physics/0402083 |
| 75 | CMS Collaboration | Tracking POG results for pion efficiency with the D* meson using data from 2016 and 2017 | CMS Detector Performance Note CMS-DP-2018-050, 2018 CDS |
|
| 76 | M. He, R. J. Fries, and R. Rapp | Heavy-quark diffusion and hadronization in quark-gluon plasma | Phys. Rev. C 86 (2012) 014903 | 1106.6006 |
| 77 | D. Zigic et al. | Importance of higher harmonics and $ {v}_{4} $ puzzle in quark-gluon plasma tomography | Phys. Rev. C 106 (2022) 044909 | 2208.09886 |
| 78 | D. Zigic et al. | DREENA--A framework as a QGP tomography tool | Front. Phys. 10 (2022) 957019 | 2110.01544 |
| 79 | J. Xu, J. Liao, and M. Gyulassy | Bridging soft-hard transport properties of quark-gluon plasmas with CUJET3.0 | JHEP 02 (2016) 169 | 1508.00552 |
| 80 | J. Xu, J. Liao, and M. Gyulassy | Consistency of perfect fluidity and jet quenching in semi-quark-gluon monopole plasmas | Chin. Phys. Lett. 32 (2015) 092501 | 1411.3673 |
| 81 | J. Xu, A. Buzzatti, and M. Gyulassy | Azimuthal jet flavor tomography with CUJET2.0 of nuclear collisions at RHIC and LHC | JHEP 08 (2014) 063 | 1402.2956 |
| 82 | W. A. Horowitz | Fluctuating heavy quark energy loss in a strongly coupled quark-gluon plasma | PRD 91 (2015) 085019 | 1501.04693 |
| 83 | R. Hambrock and W. A. Horowitz | AdS/CFT predictions for azimuthal and momentum correlations of $ \mathrm{b}\bar{\mathrm{b}} $ pairs in heavy ion collisions | link | 1703.05845 |
| 84 | M. Rohrmoser, P. B. Gossiaux, T. Gousset, and J. Aichelin | Constraining in-medium heavy-quark energy-loss mechanisms via angular correlations between heavy and light mesons | J. Phys. Conf. Ser. 779 (2017) 012032 | 1611.01854 |
| 85 | S. Cao, G.-Y. Qin, and S. A. Bass | Heavy flavor dynamics in QGP and hadron gas | Nucl. Phys. A 931 (2014) 569 | |
| 86 | CMS Collaboration | Nuclear modification factor of D$ ^0 $ mesons in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV | PLB 782 (2018) 474 | CMS-HIN-16-001 1708.04962 |
| 87 | Y. L. Dokshitzer, V. A. Khoze, and S. I. Troian | On specific QCD properties of heavy quark fragmentation ('dead cone') | JPG 17 (1991) 1602 | |
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