Szczegóły publikacji
Opis bibliograficzny
Z-boson production in $p-Pb$ collisions at $\sqrt{s_{NN}}=8.16$ TeV and $Pb-Pb$ collisions at $\sqrt{s_{NN}}=5.02$ TeV / S. Acharya, [et al.], P. J. Konopka, [et al.] // The Journal of High Energy Physics [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1029-8479. — 2020 — iss. 9 art. no. 076, s. [1], 1–25. — Bibliogr. s. 15–18, Abstr. — ALICE Collaboration. — Publikacja dostępna online od: 2020-09-10. — P. J. Konopka - afiliacja: European Organization for Nuclear Research (CERN), Geneva, Switzerland
Autorzy (1025)
- Acharya Shreyasi
- Konopka Piotr
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 133071 |
|---|---|
| Data dodania do BaDAP | 2021-03-16 |
| Tekst źródłowy | URL |
| DOI | 10.1007/JHEP09(2020)076 |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | The Journal of High Energy Physics |
Abstract
Measurement of Z-boson production in p-Pb collisions at sNN = 8.16 TeV and Pb-Pb collisions at sNN = 5.02 TeV is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity −4 < ημ< −2.5 and transverse momentum pTμ> 20 GeV/c in the laboratory frame. The invariant yield and nuclear modification factor are measured for opposite-sign dimuons with invariant mass 60 < mμμ< 120 GeV/c2 and rapidity 2.5 <ycmsμμ< 4. They are presented as a function of rapidity and, for the Pb-Pb collisions, of centrality as well. The results are compared with theoretical calculations, both with and without nuclear modifications to the Parton Distribution Functions (PDFs). In p-Pb collisions the center-of-mass frame is boosted with respect to the laboratory frame, and the measurements cover the backward (−4.46 <ycmsμμ< −2.96) and forward (2.03 <ycmsμμ< 3.53) rapidity regions. For the p-Pb collisions, the results are consistent within experimental and theoretical uncertainties with calculations that include both free-nucleon and nuclear-modified PDFs. For the Pb-Pb collisions, a 3.4σ deviation is seen in the integrated yield between the data and calculations based on the free-nucleon PDFs, while good agreement is found once nuclear modifications are considered.