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Nonperturbative-tra...
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Aidala, C.University of Michigan
(författare)
Nonperturbative-transverse-momentum broadening in dihadron angular correlations in sNN =200 GeV proton-nucleus collisions
- Artikel/kapitelEngelska2019
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Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:76e556db-1aa2-4e42-ae34-b5a7a8585790
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https://lup.lub.lu.se/record/76e556db-1aa2-4e42-ae34-b5a7a8585790URI
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https://doi.org/10.1103/PhysRevC.99.044912DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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The PHENIX collaboration has measured high-pT dihadron correlations in p+p, p+Al, and p+Au collisions at sNN=200 GeV. The correlations arise from inter- and intrajet correlations and thus have sensitivity to nonperturbative effects in both the initial and final states. The distributions of pout, the transverse-momentum component of the associated hadron perpendicular to the trigger hadron, are sensitive to initial- and final-state transverse momenta. These distributions are measured multidifferentially as a function of xE, the longitudinal momentum fraction of the associated hadron with respect to the trigger hadron. The near-side pout widths, sensitive to fragmentation transverse momentum, show no significant broadening between p+Au, p+Al, and p+p. The away-side nonperturbative pout widths are found to be broadened in p+Au when compared to p+p; however, there is no significant broadening in p+Al compared to p+p collisions. The data also suggest that the away-side pout broadening is a function of Ncoll, the number of binary nucleon-nucleon collisions, in the interaction. The potential implications of these results with regard to initial- and final-state transverse-momentum broadening and energy loss of partons in a nucleus, among other nuclear effects, are discussed. © 2019 authors. Published by the American Physical Society. Funded by SCOAP 3 .
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Oskarsson, AndersLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-aos
(författare)
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Silvermyr, DavidLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-dsi
(författare)
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Zou, L.University of California, Riverside
(författare)
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University of MichiganPartikel- och kärnfysik
(creator_code:org_t)
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PHENIX Collaboration
Sammanhörande titlar
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Ingår i:Physical Review C99:42469-9985
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