Inclusive production in pp collisions at

• Published in: Physics letters. B Vol. 718; no. 2; pp. 295 - 306
• Main Authors: Abelev, B, Adam, J, Adamova, D, Adare, A M, Aggarwal, M M, Aglieri Rinella, G, Agocs, A G, Agostinelli, A, Aguilar Salazar, S, Ahammed, Z, Ahmad Masoodi, A, Ahmad, N, Ahn, SU, Akindinov, A, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz Avina, E, Alme, J, Alt, T, Altini, V, Altinpinar, S, Altsybeev, I, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Anson, C, Anticic, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshaeuser, H, Arbor, N, Arcelli, S, Arend, A, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, I C, Arslandok, M, Asryan, A, Augustinus, A, Averbeck, R, Awes, T C, Aeystoe, J, Azmi, MD, Bach, M
• Format: Journal Article
• Language: English
• Published: 05-12-2012
• Subjects: Channels; Collisions; Decay; Elementary particles; Energy (nuclear); INT; Mathematical analysis; Statistics
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2012.10.078

The ALICE Collaboration has measured inclusive J / I production in pp collisions at a center-of-mass energy s = 2.76 TeV at the LHC. The results presented in this Letter refer to the rapidity ranges | y | < 0.9 and 2.5 < y < 4 and have been obtained by measuring the electron and muon pair decay channels, respectively. The integrated luminosities for the two channels are L int e = 1.1 nb - 1 and L int mu = 19.9 nb - 1 , and the corresponding signal statistics are N J / I e + e - = 59 +/- 14 and N J / I mu + mu - = 1364 +/- 53 . We present d I J / I / d y for the two rapidity regions under study and, for the forward-y range, d 2 I J / I / d y d p t in the transverse momentum domain 0 < p t < 8 GeV / c . The results are compared with previously published results at s = 7 TeV and with theoretical calculations.