Measurement of the inclusive J/psi polarization at forward rapidity in pp collisions at root s=8 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00492085" target="_blank" >RIV/61389005:_____/18:00492085 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00492085 RIV/68407700:21340/18:00328372
Result on the web
<a href="http://dx.doi.org/10.1140/epjc/s10052-018-6027-2" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-018-6027-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-018-6027-2" target="_blank" >10.1140/epjc/s10052-018-6027-2</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the inclusive J/psi polarization at forward rapidity in pp collisions at root s=8 TeV
Original language description
We report on the measurement of the inclusive J/psi polarization parameters in pp collisions at a center of mass energy root s = 8 TeV with the ALICE detector at the LHC. The analysis is based on a data sample corresponding to an integrated luminosity of 1.23 pb(-1) J/psi resonances are reconstructed in their di-muon decay channel in the rapidity interval 2.5 < y < 4.0 and over the transverse-momentum interval 2 < pT < 15 GeV/c. The three polarization parameters (lambda(theta), lambda(phi), lambda(theta phi)) are measured as a function of pT both in the helicity and Collins-Soper reference frames. The measured J/psi polarization parameters are found to be compatible with zero within uncertainties, contrary to expectations from all available predictions. The results are compared with the measurement in pp collisions at root s = 7 TeV.
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
10304 - Nuclear physics
Result continuities
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
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
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Volume of the periodical
78
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
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UT code for WoS article
000438114500002
EID of the result in the Scopus database
2-s2.0-85049776261