Search for Jet Quenching in High-Miltiplicity pp Collisions Using Inclusive and Semi-Inclusive Jet Production in ALICE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00577053" target="_blank" >RIV/61389005:_____/23:00577053 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5506/APhysPolBSupp.16.1-A69" target="_blank" >http://dx.doi.org/10.5506/APhysPolBSupp.16.1-A69</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5506/APhysPolBSupp.16.1-A69" target="_blank" >10.5506/APhysPolBSupp.16.1-A69</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for Jet Quenching in High-Miltiplicity pp Collisions Using Inclusive and Semi-Inclusive Jet Production in ALICE

Popis výsledku v původním jazyce

These proceedings report on recent experimental searches for jet-quenching effects in pp collisions at root s = 13 TeV. The measurements are based on two jet observables: inclusive jet production and the semi-inclusive yield of jets recoiling from a high-transverse-momentum (p(T)) hadron. Both measurements are carried out differentially in event multiplicity, which is assumed to bias the size of the collision system. To search for jet quenching effects, the shape of the inclusive jet yield in different multiplicity intervals is compared to the one obtained in minimum bias (MB) events. The increase in selected charged-particle multiplicity causes a rise in the jet yield but only minor changes in the slope of the jet spectrum above 20 GeV/c. In the semi-inclusive analysis, recoil jet acoplanarity is measured for events selected on high multiplicity (HM) and compared to the MB population. A striking modification of the acoplanarity distribution, which is nominally characteristic of jet quenching, is observed in the measured HM population. Its origin is elucidated by comparisons with PYTHIA calculations.

Název v anglickém jazyce

Search for Jet Quenching in High-Miltiplicity pp Collisions Using Inclusive and Semi-Inclusive Jet Production in ALICE

Popis výsledku anglicky

These proceedings report on recent experimental searches for jet-quenching effects in pp collisions at root s = 13 TeV. The measurements are based on two jet observables: inclusive jet production and the semi-inclusive yield of jets recoiling from a high-transverse-momentum (p(T)) hadron. Both measurements are carried out differentially in event multiplicity, which is assumed to bias the size of the collision system. To search for jet quenching effects, the shape of the inclusive jet yield in different multiplicity intervals is compared to the one obtained in minimum bias (MB) events. The increase in selected charged-particle multiplicity causes a rise in the jet yield but only minor changes in the slope of the jet spectrum above 20 GeV/c. In the semi-inclusive analysis, recoil jet acoplanarity is measured for events selected on high multiplicity (HM) and compared to the MB population. A striking modification of the acoplanarity distribution, which is nominally characteristic of jet quenching, is observed in the measured HM population. Its origin is elucidated by comparisons with PYTHIA calculations.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10304 - Nuclear 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

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Acta Physica Polonica B - Proceedings Supplement

ISBN

—

ISSN

1899-2358

e-ISSN

2082-7865

Počet stran výsledku

6

Strana od-do

1-A69

Název nakladatele

Faculty of Physics, Astronomy and Applied Computer Science

Místo vydání

Krakow

Místo konání akce

Krakow

Datum konání akce

4. 4. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001071843100069