| Title: |
Nonperturbative-transverse-momentum broadening in dihadron angular correlations in sNN=200GeV proton-nucleus collisions |
| Authors: |
Aidala, C; Akiba, Y; Alfred, M; Andrieux, V; Apadula, N; Asano, H; Azmoun, B; Babintsev, V; Bandara, NS; Barish, KN; Bathe, S; Bazilevsky, A; Beaumier, M; Belmont, R; Berdnikov, A; Berdnikov, Y; Blau, DS; Boer, M; Bok, JS; Brooks, ML; Bryslawskyj, J; Bumazhnov, V; Campbell, S; Roman, V Canoa; Cervantes, R; Y., C; Chiu, M; Choi, IJ; Choi, JB; Citron, Z; Connors, M; Cronin, N; Csanád, M; Csörgő, T; Danley, TW; Daugherity, MS; David, G; DeBlasio, K; Dehmelt, K; Denisov, A; Deshpande, A; Desmond, EJ; Dion, A; Dixit, D; H., J; Drees, A; Drees, KA; Durham, JM; Durum, A; Enokizono, A; En'yo, H; Esumi, S; Fadem, B; Fan, W; Feege, N; Fields, DE; Finger, M; Fokin, SL; Frantz, JE; Franz, A; Frawley, AD; Fukuda, Y; Gal, C; Gallus, P; Garg, P; Ge, H; Giordano, F; Goto, Y; Grau, N; Greene, SV; Perdekamp, M Grosse; Gunji, T; Guragain, H; Hachiya, T; Haggerty, JS; Hahn, KI; Hamagaki, H; Hamilton, HF; Han, SY; Hanks, J; Hasegawa, S; Haseler, TOS; He, X; Hemmick, TK; Hill, JC; Hill, K; Hodges, A; Hollis, RS; Homma, K; Hong, B; Hoshino, T; Hotvedt, N; Huang, J; Huang, S; Imai, K; Inaba, M; Iordanova, A; Isenhower, D; Ivanishchev, D |
| Source: |
Physical Review C, vol 99, iss 4 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2019 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5106 Nuclear and Plasma Physics (for-2020); 5107 Particle and High Energy Physics (for-2020); 51 Physical Sciences (for-2020); hep-ex; nucl-ex |
| Description: |
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. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt636643rz; https://escholarship.org/uc/item/636643rz; https://escholarship.org/content/qt636643rz/qt636643rz.pdf |
| DOI: |
10.1103/physrevc.99.044912 |
| Availability: |
https://escholarship.org/uc/item/636643rz; https://escholarship.org/content/qt636643rz/qt636643rz.pdf; https://doi.org/10.1103/physrevc.99.044912 |
| Rights: |
public |
| Accession Number: |
edsbas.F0209D29 |
| Database: |
BASE |