On saturation of charged hadron production in pp collisions at LHC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F10%3A00346474" target="_blank" >RIV/61389005:_____/10:00346474 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

On saturation of charged hadron production in pp collisions at LHC

Popis výsledku v původním jazyce

First results on charged hadron transverse momentum spectra in pp collisions obtained by the CMS Collaboration at the LHC are analyzed in the z-scaling approach. These LHC data confirm z-scaling. The saturation regime of the scaling function psi(z) observed in pp and (p) over barp interactions at lower energies root s = 19-1960 GeV is verified. The saturation of psi(z) for charged hadrons is found down to a value of z similar or equal to 0.05 at the highest energy root s = 2360 GeV currently reached bythe colliders. A microscopic scenario of hadron production is discussed in connection with the search for new signatures of phase transitions in hadron matter. Constituent energy loss and its dependences on the transverse momentum and collision energy are estimated. We suggest that the beam energy scan program in the saturation region at the LHC could be of interest.

Název v anglickém jazyce

On saturation of charged hadron production in pp collisions at LHC

Popis výsledku anglicky

First results on charged hadron transverse momentum spectra in pp collisions obtained by the CMS Collaboration at the LHC are analyzed in the z-scaling approach. These LHC data confirm z-scaling. The saturation regime of the scaling function psi(z) observed in pp and (p) over barp interactions at lower energies root s = 19-1960 GeV is verified. The saturation of psi(z) for charged hadrons is found down to a value of z similar or equal to 0.05 at the highest energy root s = 2360 GeV currently reached bythe colliders. A microscopic scenario of hadron production is discussed in connection with the search for new signatures of phase transitions in hadron matter. Constituent energy loss and its dependences on the transverse momentum and collision energy are estimated. We suggest that the beam energy scan program in the saturation region at the LHC could be of interest.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

<a href="/cs/project/LA08015" target="_blank" >LA08015: Spolupráce ČR s CERN</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Physics G-Nuclear and Particle Physics

ISSN

0954-3899

e-ISSN

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Svazek periodika

37

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000279712600010

EID výsledku v databázi Scopus

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