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

Result code in 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>
Alternative codes found
RIV/61389005:_____/22:00559780
Result on the web
<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>

Result language
angličtina
Original language name
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p-Pb collisions at √sNN = 8.16 TeV
Original language description
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.
Czech name
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Czech description
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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

Project
<a href="/en/project/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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