Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at root s=13 TeV

doi:10.1140/epjc/s10052-020-7673-8

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	Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at root s=13 TeV
	Acharya, S ; Acosta, FT ; Adam, J ; Adamova, D ; Adler, A ; Adolfsson, J ; Aggarwal, MM ; Rinella, GA ; Agnello, M ; Agrawal, N
刊名	EUROPEAN PHYSICAL JOURNAL C
	2020
卷号	80 期号:2 页码:-
关键词	P-PB COLLISIONS SIMULATION
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-020-7673-8
文献子类	期刊论文
英文摘要	The production rates and the transverse momentum distribution of strange hadrons at mid-rapidity (vertical bar y vertical bar < 0.5) are measured in proton-proton collisions at root s = 13 TeV as a function of the charged particle multiplicity, using the ALICE detector at the LHC. The production rates of K-S(0), Lambda, Xi, and Omega increase with the multiplicity faster than what is reported for inclusive charged particles. The increase is found to be more pronounced for hadrons with a larger strangeness content. Possible auto-correlations between the charged particles and the strange hadrons are evaluated by measuring the event-activity with charged particle multiplicity estimators covering different pseudorapidity regions. When comparing to lower energy results, the yields of strange hadrons are found to depend only on the mid-rapidity charged particle multiplicity. Several features of the data are reproduced qualitatively by general purpose QCD Monte Carlo models that take into account the effect of densely-packed QCD strings in high multiplicity collisions. However, none of the tested models reproduce the data quantitatively. This work corroborates and extends the ALICE findings on strangeness production in proton-proton collisions at 7 TeV.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33021]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Foggia, Foggia, Italy 2.Univ Tsukuba, Tsukuba, Ibaraki, Japan 3.Sezione Ist Nazl Fis Nucl, Turin, Italy 4.Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy 5.INFN, Sez Torino, Alessandria, Italy 6.Dipartimento Interateneo Fis M Merlin, Bari, Italy 7.Sezione Ist Nazl Fis Nucl, Bari, Italy 8.European Org Nucl Res CERN, Geneva, Switzerland 9.Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia (5 10.Western Norway Univ Appl Sci, Fac Sci & Engn, Bergen, Norway
推荐引用方式 GB/T 7714	Acharya, S,Acosta, FT,Adam, J,et al. Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at root s=13 TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2020,80(2):-.
APA	Acharya, S.,Acosta, FT.,Adam, J.,Adamova, D.,Adler, A.,...&Zmeskal, J.(2020).Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at root s=13 TeV.EUROPEAN PHYSICAL JOURNAL C,80(2),-.
MLA	Acharya, S,et al."Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at root s=13 TeV".EUROPEAN PHYSICAL JOURNAL C 80.2(2020):-.