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Studies of dijet transverse momentum balance and pseudorapidity distributions in pPb collisions at tion-source format-t-e-x" xmlns:search="http://marklogic.com/appservices/s
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Dijet production has been measured in \(\mathrm {p}\mathrm {Pb}\) collisions at a nucleon–nucleon centre-of-mass energy of 5.02 \(\,\text {TeV}\) . A data sample corresponding to an integrated luminosity of 35 \({{\,\text {nb}^{{-1}}}} \) 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 ( \(E_\mathrm {T}^{4 ). For \(\mathrm {p}\mathrm {Pb}\) 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 \(\mathrm {p}\mathrm {p}\) reference and insensitive to \(E_\mathrm {T}^{4 . In contrast, the mean value of the dijet pseudorapidity is found to change monotonically with increasing \(E_\mathrm {T}^{4 , 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 in minimum bias \(\mathrm {p}\mathrm {Pb}\) collisions 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.

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