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| 題名: | Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at √sNN = 5.02 TeV |
| 作者: | 余欣珊;De Wolf, E. A.;Wang, J.;Bruno, G.;Godinovic, N.;Kinnunen, R.;Lassila-Perini, K.;Fabbro, B.;Hamel de Monchenault, G.;Mironov, C.;Klein, K.;Duchardt, D.;Hebbeker, T.;Meyer, A.;Eckstein, D.;Pitzl, D.;Poehlsen, T.;Giffels, M.;Gilbert, A.;Husemann, U.;Nürnberg, A.;Anagnostou, G.;Raics, P.;Swain, S. K.;Malhotra, S.;Paktinat Mehdiabadi, S.;Safarzadeh, B.;Iaselli, G.;Pugliese, G.;Silvestris, L.;Gori, V.;Lucchini, M. T.;Marzocchi, B.;Buontempo, S.;Paolucci, P.;Zotto, P.;Bellan, R.;Cartiglia, N.;Pastrone, N.;Solano, A.;Zanetti, A.;Lee, B.;Golutvin, I.;Lychkovskaya, N.;Andreev, V.;Bayshev, I.;Scodellaro, L.;Gigi, D.;Girone, M.;Kousouris, K.;Malgeri, L.;Masetti, L.;Silva, P.;Wardle, N.;Dünser, M.;Canelli, M. F.;Hinzmann, A.;Yang, Y.;Lin, W.;Chang, Y. W.;Gurpinar, E.;Akin, I. V.;Clement, E.;Tomalin, I. R.;Futyan, D.;Hall, G.;Malik, S.;Kasmi, A.;Kennedy, E.;Long, O. R.;Barge, D.;Pena, C.;Ryd, A.;Thom, J.;Beretvas, A.;Fisk, I.;Gottschalk, E.;Hooberman, B.;Vidal, R.;Acosta, D.;Bortignon, P.;Das, S.;Shchutska, L.;Gauthier, L.;Bean, A.;Malek, M.;Skuja, A.;Busza, W.;Goncharov, M.;Klute, M.;Roland, G.;Kharchilava, A.;Wang, R. J.;Korjenevski, S.;Patel, R.;Salur, S.;Schnetzer, S.;Melo, A.;Snook, B.;Belknap, D. A.;Savin, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Regular - Experimental Physics |
| 日期: | 2015-05-01 |
| 上傳時間: | 2026-04-23 12:31:44 (UTC+8) |
| 出版者: | Springer New York;Berlin/Heidelberg: Springer Berlin Heidelberg |
| 摘要: | 摘要： Transverse momentum spectra of charged particles are measured by the CMS experiment at the CERN LHC in pPb collisions at √s̅_̅(̅_̅(̅\̅m̅a̅t̅h̅r̅m̅)̅ ̅N̅N̅)̅ =5.02 sNN=5.02 \text TeV TeV, in the range 0.4 < p_(\mathrm T) < 120 0.4<pT<120 \text GeV/c GeV/c and pseudorapidity |η _(\textsc) cm | < 1.8 |ηCM|<1.8 in the proton–nucleon center-of-mass frame. For p_(\mathrm T) <10 pT<10 \text GeV/c GeV/c, the charged-particle production is asymmetric about η _(\textsc) cm = 0 ηCM=0, with smaller yield observed in the direction of the proton beam, qualitatively consistent with expectations from shadowing in nuclear parton distribution functions (nPDF). A pp reference spectrum at √s̅=5.02 s=5.02 \text TeV TeV is obtained by interpolation from previous measurements at higher and lower center-of-mass energies. The p_(\mathrm T) pT distribution measured in pPb collisions shows an enhancement of charged particles with p_(\mathrm T) >20 pT>20 \text GeV/c GeV/c compared to expectations from the pp reference. The enhancement is larger than predicted by perturbative quantum chromodynamics calculations that include antishadowing modifications of nPDFs.
出版者： Berlin/Heidelberg: Springer Berlin Heidelberg
出版日期： 2015-01-01
出處： The European physical journal. C, Particles and fields, 2015-01, Vol.75 (5)
資源來源： EBSCOhost Academic Search Premier
版權： CERN for the benefit of the CMS collaboration 2015
識別號： ISSN: 1434-6044
識別號： EISSN: 1434-6052
識別號： DOI: 10.1140/epjc/s10052-015-3435-4
識別號： PMID: 26069462 |
| 顯示於類別: | [物理學系] 期刊論文
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