Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p-Pb collisions at √sNN = 8.16 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00559780" target="_blank" >RIV/68378271:_____/22:00559780 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/22:00559780

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2022.136943" target="_blank" >https://doi.org/10.1016/j.physletb.2022.136943</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2022.136943" target="_blank" >10.1016/j.physletb.2022.136943</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p-Pb collisions at √sNN = 8.16 TeV

Popis výsledku v původním jazyce

Neutral pion(pi(0)) and eta meson production cross sections were measured up to unprecedentedly high transverse momenta (p(T)) in p-Pb collisions at root s(NN) = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval -1.3 < y < 0.3 in the ranges of 0.4 < p(T) < 200 GeV/cand 1.0 < p(T) < 50 GeV/c, respectively. The respective nuclear modification factor (R-pPb) is presented for p(T) up to of 200 and 30 GeV/c, where the former was achieved by extending the pi(0) measurement in pp collisions at root s = 8 TeV using the merged cluster technique. The values of R-pPb are below unity for p(T) < 10 GeV/c, while they are consistent with unity for p(T) > 10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at root s(NN) = 5.02 TeV.

Název v anglickém jazyce

Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p-Pb collisions at √sNN = 8.16 TeV

Popis výsledku anglicky

Neutral pion(pi(0)) and eta meson production cross sections were measured up to unprecedentedly high transverse momenta (p(T)) in p-Pb collisions at root s(NN) = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval -1.3 < y < 0.3 in the ranges of 0.4 < p(T) < 200 GeV/cand 1.0 < p(T) < 50 GeV/c, respectively. The respective nuclear modification factor (R-pPb) is presented for p(T) up to of 200 and 30 GeV/c, where the former was achieved by extending the pi(0) measurement in pp collisions at root s = 8 TeV using the merged cluster technique. The values of R-pPb are below unity for p(T) < 10 GeV/c, while they are consistent with unity for p(T) > 10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at root s(NN) = 5.02 TeV.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LTT17018" target="_blank" >LTT17018: Získávání nových poznatků o mikrosvětě v infrastruktuře CERN</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

827

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

136943

Kód UT WoS článku

000820935000012

EID výsledku v databázi Scopus

2-s2.0-85124006070