We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at s=5.02 and 13 TeV.
- Authors
Acharya, S.; Adamová, D.; Adhya, S. P.; Adler, A.; Adolfsson, J.; Aggarwal, M. M.; Rinella, G. Aglieri; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Aiola, S.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Albuquerque, D. S. D.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.
- Abstract
We present a study of the inclusive charged-particle transverse momentum ( p T ) spectra as a function of charged-particle multiplicity density at mid-pseudorapidity, d N ch / d η , in pp collisions at s = 5.02 and 13 TeV covering the kinematic range | η | < 0.8 and 0.15 < p T < 20 GeV/c. The results are presented for events with at least one charged particle in | η | < 1 (INEL > 0 ). The p T spectra are reported for two multiplicity estimators covering different pseudorapidity regions. The p T spectra normalized to that for INEL > 0 show little energy dependence. Moreover, the high- p T yields of charged particles increase faster than the charged-particle multiplicity density. The average p T as a function of multiplicity and transverse spherocity is reported for pp collisions at s = 13 TeV. For low- (high-) spherocity events, corresponding to jet-like (isotropic) events, the average p T is higher (smaller) than that measured in INEL > 0 pp collisions. Within uncertainties, the functional form of ⟨ p T ⟩ (N ch) is not affected by the spherocity selection. While EPOS LHC gives a good description of many features of data, PYTHIA overestimates the average p T in jet-like events.
- Subjects
PROTON-proton interactions; CHARGED particle accelerators; MULTIPLICITY (Mathematics); ENERGY security
- Publication
European Physical Journal C -- Particles & Fields, 2019, Vol 79, Issue 10, pN.PAG
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-019-7350-y