Evidence for Nonlinear Gluon Effects in QCD and Their Mass Number Dependence at STAR
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00563839" target="_blank" >RIV/61389005:_____/22:00563839 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/22:00363546
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.129.092501" target="_blank" >https://doi.org/10.1103/PhysRevLett.129.092501</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.129.092501" target="_blank" >10.1103/PhysRevLett.129.092501</a>
Alternative languages
Result language
angličtina
Original language name
Evidence for Nonlinear Gluon Effects in QCD and Their Mass Number Dependence at STAR
Original language description
The STAR Collaboration reports measurements of back-to-back azimuthal correlations of di-pi(0)s produced at forward pseudorapidities (2.6 < eta < 4.0) in p + p, p + Al, and p + Au collisions at a center-of-mass energy of 200 GeV. We observe a clear suppression of the correlated yields of back-to-back pi(0) pairs in p + Al and p + Au collisions compared to the p + p data. The observed suppression of back-to-back pairs as a function of transverse momentum suggests nonlinear gluon dynamics arising at high parton densities. The larger suppression found in p + Au relative to p + Al collisions exhibits a dependence of the saturation scale Q(s)(2) on the mass number A. A linear scaling of the suppression with A(1/3) is observed with a slope of -0.09 +/- 0.01.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Letters
ISSN
0031-9007
e-ISSN
1079-7114
Volume of the periodical
129
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
092501
UT code for WoS article
000872012400004
EID of the result in the Scopus database
2-s2.0-85137263697