Number of the records: 1
Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in p+p collisions at √s = 510 GeV
- 1.0487771 - FZÚ 2018 RIV US eng J - Journal Article
Adare, A. - Aidala, C. - Ajitanand, N.N. - Tomášek, Lukáš - Vrba, Václav … Total 466 authors
Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in p+p collisions at √s = 510 GeV.
Physical Review D. Roč. 95, č. 7 (2017), s. 1-19, č. článku 072002. ISSN 2470-0010. E-ISSN 2470-0029
Institutional support: RVO:68378271
Keywords : Drell-Yan process * fragmentation * quantum chromodynamics * factorization * violation * PYTHIA * PHENIX * 510 GeV-cms
OECD category: Particles and field physics
Impact factor: 4.394, year: 2017
Dihadron and isolated direct photon-hadron angular correlations are measured in p+p collisions at s=510 GeV. Correlations of charged hadrons of 0.7<pT<10 GeV/c with π0 mesons of 4<pT<15 GeV/c or isolated direct photons of 7<pT<15 GeV/c are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component pout perpendicular to the axis of the trigger particle, which is the high-pT direct photon or π0. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta (pTtrig).
Permanent Link: http://hdl.handle.net/11104/0282406
Number of the records: 1