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Adhya, S. P.; Akindinov, A.; Al-Turany, M.; Anson, C.; Arcelli, S.; Averbeck, R.; Baek, Y. W.; Barth, K.; Alba, J. L. Bazo; Bertens, R. A.; Biswas, S.; Blume, C.; Bock, F.; Bossi, H.; Bratrud, L.; Braun-Munzinger, P.; Bregant, M.; Buhler, P.; Buncic, P.; Caliva, A.; Carnesecchi, F.; Collu, A.; Crkovská, J.; Dainese, A.; Damas, F. P. A.; Danu, A.; Delsanto, S.; Fionda, F. M.; Fiorenza, G.; Foertsch, S.; Furget, C.; Gaardhøje, J. J.; Garner, K.; Gasik, P.; Giubilato, P.; Ramirez, A. Gomez; González-Zamora, P.; Grabski, V.; Groettvik, O. S.; Harris, J. W.; Hasenbichler, J. A.; Herghelegiu, A.; Hilden, T. E.; Huang, C.; Hughes, C.; Hushnud, H.; Islam, M. S.; Ivanov, M.; Jacak, B.; Jusko, A.; Karpechev, E.; Ketzer, B.; Khuntia, A.; Kileng, B.; Klein, J.; Klein, S.; Kurepin, A. B.; Lee, S.; Lettrich, M.; Li, X. L.; Mal’Kevich, D.; Martinez, J. L.; Mitu, C. M.; Mohanty, A. P.; Munhoz, M. G.; Musa, L.; De Oliveira, R. A. Negrao; Pacik, V.; Papikyan, V.; Pareek, P.; Paul, B.; Petrovici, M.; Pikna, M.; Räsänen, S. S.; Rascanu, B. T.; Rath, R.; Read, K. F.; Roslon, K.; Roy, P.; Rui, R.; Rybicki, A.; Sarkar, D.; Schiaua, C.; Schicker, R.; Sekihata, D.; Sharma, A.; Shou, Q.; Silvestre, C.; Skaali, T. B.; Sochan, J.; Sultanov, R.; Tarzila, M. G.; Tieulent, R.; Topilskaya, N.; Trzeciak, B. A.; Virgili, T.; Wu, Y.; Yamakawa, K.; Zhigareva, N.; Zhu, J.
The European physical journal. C, Particles and fields, 2019, Letnik: 79, Številka: 10Journal Article
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.
