Production of light-flavor hadrons in pp collisions at root s=7 and root s=13 Tev

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00541786" target="_blank" >RIV/68378271:_____/21:00541786 - isvavai.cz</a>

Alternative codes found

RIV/61389005:_____/21:00541786 RIV/68407700:21340/21:00351206

Result on the web

<a href="https://doi.org/10.1140/epjc/s10052-020-08690-5" target="_blank" >https://doi.org/10.1140/epjc/s10052-020-08690-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-020-08690-5" target="_blank" >10.1140/epjc/s10052-020-08690-5</a>

Result language

angličtina

Original language name

Production of light-flavor hadrons in pp collisions at root s=7 and root s=13 Tev

Original language description

The production of pi(+/-), K-+/-, K-S(0), K*(892)(0), p, phi(1020), Lambda, Xi(-), Omega(-), and their antiparticles was measured in inelastic proton-proton (pp) collisions at a center-of-mass energy of root s = 13 TeV at midrapidity (vertical bar y vertical bar < 0.5) as a function of transverse momentum (P-T) using the ALICE detector at the CERN LHC. Furthermore, the single-particle p(T) distributions of K-S(0), Lambda, and (Lambda) over bar in inelastic pp collisions at root s = 7 TeV are reported here for the first time. The p(T) distributions are studied at midrapidity within the transverse momentum range 0 <= p(T) <= 20 GeV/c, depending on the particle species. The p(T) spectra, integrated yields, and particle yield ratios are discussed as a function of collision energy and compared with measurements at lower root s and with results from various general-purpose QCD-inspired Monte Carlo models. A hardening of the spectra at high p(T) with increasing collision energy is observed, which is similar for all particle species under study. The transverse mass and x(T) 2p(T)/root s scaling properties of hadron produc- tion are also studied. As the collision energy increases from root s = 7-13 TeV, the yields of non- and single-strange hadrons normalized to the pion yields remain approximately constant as a function of root s, while ratios for multi-strange hadrons indicate enhancements. The p(T)-differential cross sections of pi(+/-), K-+/- and p ((p) over bar) are compared with next-to-leading order perturbative QCD calculations, which are found to overestimate the cross sections for pi(+/-) and p ((p) over bar) at high p(T).

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Volume of the periodical

81

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

41

Pages from-to

256

UT code for WoS article

000632422000001

EID of the result in the Scopus database

2-s2.0-85103353960