production as a function of charged particle multiplicity in pp collisions at

• Published in: Physics letters. B Vol. 712; no. 3; pp. 165 - 175
• Main Authors: Abelev, B, Adam, J, Adamovl, 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, Almarlz Avic-a, E, Alme, J, Alt, T, Altini, V, Altinpinar, S, Altsybeev, I, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Anson, C, AntiAic, T, Antinori, F, Antonioli, P, Aphecetche, L, AppelshAOuser, 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, Aystoe, J, Azmi, MD, Bach, M
• Format: Journal Article
• Language: English
• Published: 06-06-2012
• Subjects: Bias; Charged particles; Collisions; Density; Elementary particles; Intervals
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2012.04.052

The ALICE Collaboration reports the measurement of the relative J / I yield as a function of charged particle pseudorapidity density d N ch / d IDT in pp collisions at s = 7 TeV at the LHC. J / I particles are detected for p t > 0 , in the rapidity interval | y | 0 . In the highest multiplicity interval with a d N ch / d IDT ( bin ) a = 24.1 , corresponding to four times the minimum bias multiplicity density, an enhancement relative to the minimum bias J / I yield by a factor of about 5 at 2.5 < y < 4 (8 at | y | < 0.9 ) is observed.