Measurement of the Λ c + to D 0 production ratio in peripheral PbPb collisions at s NN = 5. 02 TeV

Measurement of the Λ c + to D 0 production ratio in peripheral PbPb collisions at s NN = 5. 02 TeV

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We report on a measurement of the Λc+ to D0 production ratio in peripheral PbPb collisions at sNN = 5.02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4.5. The Λc+ (D0) hadrons are reconstructed via the decay channel Λc+→ pK−π+ (D0→ K−π+) for 2 < pT< 8 GeV/c and in th...

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Bibliographic Details
Main Authors: Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amato, S, Amey, JL, Amhis, Y, An, L, Cervenkov, D, Fischer, KM, Gilman, AL, Goncalves Abrantes, F, Gruberg Cazon, BR, Harnew, N, John, M, Malde, S, Mohammed, RA, Murphy, CH, Pajero, T, Pili, M, Renaudin, V, Rollings, A, Scantlebury Smead, LG, Smallwood, JC, Stanislaus, S, Suljik, F, Tat, MD, Wilkinson, G, Zhang, Y
Format: Journal article
Language:English
Published: Springer 2023
Description
Summary:We report on a measurement of the Λc+ to D0 production ratio in peripheral PbPb collisions at sNN = 5.02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4.5. The Λc+ (D0) hadrons are reconstructed via the decay channel Λc+→ pK−π+ (D0→ K−π+) for 2 < pT< 8 GeV/c and in the centrality range of about 65–90%. The results show no significant dependence on pT, y or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at sNN = 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at s = 5 TeV but are in tension with predictions of the Statistical Hadronization model.

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