Compact Muon Solenoid
LHC, CERN
Visit us: CMS Public Website, CMS Physics ;
Contact us: CMS Publications Committee
| CMS-HIN-13-001 ; CERN-PH-EP-2013-236 | ||
| Studies of dijet pseudorapidity distributions and transverse momentum balance in pPb collisions at √sNN = 5.02 TeV | ||
| CMS Collaboration | ||
| 17 January 2014 | ||
| Eur. Phys. J. C 74 (2014) 2951 | ||
| Abstract: Dijet production has been measured in pPb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. A data sample corresponding to an integrated luminosity of 35 inverse-nanobarns was collected using the Compact Muon Solenoid detector at the Large Hadron Collider. The dijet transverse momentum balance, azimuthal angle correlations, and pseudorapidity distributions are studied as a function of the transverse energy in the forward calorimeters (E4<|η|<5.2T). For pPb collisions, the dijet transverse momentum ratio and the width of the distribution of dijet azimuthal angle difference are comparable to the same quantities obtained from a simulated pp reference and insensitive to E4<|η|<5.2T. In contrast, the mean value of the dijet pseudorapidity is found to change monotonically with increasing E4<|η|<5.2T, indicating a correlation between the energy emitted at large pseudorapidity and the longitudinal motion of the dijet frame. The pseudorapidity distribution of the dijet system is compared with next-to-leading-order perturbative QCD predictions obtained from both nucleon and nuclear parton distribution functions, and the data more closely match the latter. | ||
| Links: e-print arXiv:1401.4433 [nucl-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
| Figures | |
png pdf |
Figure 1-a:
|
png pdf |
Figure 1-b:
|
png pdf |
Figure 1-c:
|
png pdf |
Figure 2:
|
png pdf |
Figure 3:
|
png pdf |
Figure 4:
|
png pdf |
Figure 5:
|
png pdf |
Figure 6:
|
png pdf |
Figure 7:
|
png pdf |
Figure 8-a:
|
png pdf |
Figure 8-b:
|
png pdf |
Figure 9:
|
png pdf |
Figure 10:
|
|
|
Compact Muon Solenoid LHC, CERN |
|
|
|
|
|
|