Phenomenology of Charged-Particle Multiplicity Distributions

Authors

  • A. Alkin Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine

DOI:

https://doi.org/10.15407/ujpe62.09.0743

Keywords:

charged-particle multiplicity, proton-proton scattering, LHC

Abstract

Charged-particle multiplicity distributions are an interesting tool to study both soft- and hard-QCD processes in hadronic collisions. Since the last century, a significant range of center-of-mass energies has been probed, ranging from a few GeV to 13 TeV in the latest LHC run. The common analysis of multiplicity distributions at different energies, in different phase space regions, and from sufficiently different experiments provides a way to systematize and to review available phenomenological models of multiple particle production. In this work, a phenomenological model that can describe simultaneously the charged-particle multiplicity distributions in various restricted pseudorapidity intervals for proton-proton collisions is suggested. The model is successfully applied to experimental results of the ALICE experiment at LHC.

References

M.L. Miller, K. Reygers, S.J. Sanders, P. Steinberg. Glauber modeling in high energy nuclear collisions. Ann. Rev. Nucl. Part. Sci. 57, 205 (2007), arXiv:nucl-ex/0701025 [nucl-ex].

J. Adam et al. (ALICE). Enhanced production of multistrange hadrons in high-multiplicity proton-proton collisions. Nature Phys. 13, 539 (2017), arXiv:1606.07424 [nuclex].

A. Alkin, E. Martynov, O. Kovalenko, S.M. Troshin. Impact-parameter analysis of TOTEM data at the LHC: Black disk limit exceeded. Phys. Rev. D 89, 091501 (2014), arXiv:1403.8036 [hep-ph].

https://doi.org/10.1103/PhysRevD.89.091501

P. Carruthers, C.C. Shih. The phenomenological analysis of hadronic multiplicity distributions. Int. J. Mod. Phys. A 2, 1447 (1987).

https://doi.org/10.1142/S0217751X87000806

C. Fuglesang. UA5 multiplicity distributions and fits of various functions. In Multiparticle dynamics: A meeting ground between particle and statistical physics. A dialog between experiment and theory. Festschrift for Leon van Hove. Proceedings of the Conference at La Thuile, Italy (1989).

K. Aamodt et al. (ALICE). Charged-particle multiplicity measurement in proton-proton collisions at √ = 0.9 and 2.36 TeV with ALICE at LHC. Eur. Phys. J. C 68, 89 (2010), arXiv:1004.3034 [hep-ex].

https://doi.org/10.1140/epjc/s10052-010-1339-x

V. Khachatryan et al. (CMS). Charged particle multiplicities in pp interactions at √ = 0.9, 2.36, and 7 TeV. JHEP 1101, 079 (2011), arXiv:1011.5531 [hep-ex].

J. Adam et al. (ALICE). Charged-particle multiplicities in proton-proton collisions at √ = 0.9 to 8 TeV. Eur. Phys. J. C 77, 33 (2017), arXiv:1509.07541 [nucl-ex].

V. Zaccolo (ALICE). Charged-particle multiplicity distributions over a wide pseudorapidity range in proton-proton collisions with ALICE. Nucl. Phys. A 956, 529 (2016), arXiv:1512.05273 [hep-ex].

B. Abelev et al. (ALICE). Measurement of inelastic, singleand double-diffraction cross sections in proton-proton collisions at the LHC with ALICE. Eur. Phys. J. C 73, 2456 (2013), arXiv:1208.4968 [hep-ex].

https://doi.org/10.1140/epjc/s10052-013-2456-0

A. Giovannini, L. Van Hove. Negative binomial multiplicity distributions in high-energy hadron collisions. Z. Phys. C 30, 391 (1986).

https://doi.org/10.1007/BF01557602

A. Polyakov. A similarity hypothesis in the strong interactions. 1. Multiple hadron production in e+ e− annihilation. Sov. Phys. JETP 32, 296 (1971).

Z. Koba, H.B. Nielsen, P. Olesen. Scaling of multiplicity distributions in high-energy hadron collisions. Nucl. Phys. B 40, 317 (1972).

https://doi.org/10.1016/0550-3213(72)90551-2

A. Breakstone et al. (Ames-Bologna-CERN-DortmundHeidelberg-Warsaw). Charged multiplicity distribution in pp interactions at ISR energies. Phys. Rev. D 30, 528 (1984).

https://doi.org/10.1103/PhysRevD.30.528

A. Giovannini, R. Ugoccioni. Possible scenarios for soft and semihard components structure in central hadron hadron collisions in the TeV region. Phys. Rev. D 59, 094020 (1999), arXiv:hep-ph/9810446.

https://doi.org/10.1103/PhysRevD.59.094020

A. Giovannini, R. Ugoccioni. Possible scenarios for soft and semihard components structure in central hadronhadron collisions in the TeV region: Pseudorapidity intervals. Phys. Rev. D 60, 074027 (1999).

https://doi.org/10.1103/PhysRevD.60.074027

P. Ghosh. Negative binomial multiplicity distribution in proton-proton collisions in limited pseudorapidity intervals at LHC up to √ = 7 TeV and the clan model. Phys. Rev. D 85, 054017 (2012), arXiv:1202.4221 [hep-ph].

https://doi.org/10.1103/PhysRevD.85.054017

G. Wilk, Z. W lodarczyk. How to retrieve additional information from the multiplicity distributions. J. Phys. G 44, 015002 (2017), arXiv:1601.03883 [hep-ph].

G. Wilk, Z. W lodarczyk. Oscillations in counting statistics. In Proceedings, 46th International Symposium on Multiparticle Dynamics (ISMD 2016): Jeju Island, South Korea (2017), vol. 141, p. 01005, arXiv:1610.01890 [hep-ph].

G. Cowan. Statistical Data Analysis (Clarendon Press, 1998) [ISBN: 9780198501565].

A. Alkin, E. Martynov, V. Pauk, E. Romanets. Inclusive distributions in the unitarized pomeron models (2009), arXiv:0911.4698 [hep-ph].

V. Pauk, A. Alkin, E. Martynov, E. Romanets. Oneparticle inclusive distribution in the unitarized pomeron models. In Proceedings, 20th Symposium on Hadron collider physics (HCP 2009): Evian, France, November 16–20 (2009), vol. HCP2009, p. 091.

Downloads

Published

2018-12-13

Issue

Section

Fields and elementary particles

How to Cite

Phenomenology of Charged-Particle Multiplicity Distributions. (2018). Ukrainian Journal of Physics, 62(9), 743. https://doi.org/10.15407/ujpe62.09.0743