Production of Λ<inf>c</inf><sup>+</sup> baryons in proton-proton and lead-lead collisions at s<inf><inf>NN</inf></inf>=5.02TeV

Sirunyan, AM; Tumasyan, A; Adam, W; Ambrogi, F; Bergauer, T; Brandstetter, J; Dragicevic, M; Erö, J; Escalante Del Valle, A; Flechl, M; Frühwirth, R; Jeitler, M; Krammer, N; Krätschmer, I; Liko, D; Madlener, T; Mikulec, I; Rad, N; Schieck, J; Schöfbeck, R; Spanring, M; Spitzbart, D; Waltenberger, W; Wittmann, J; Wulz, CE; Zarucki, M; Drugakov, V; Mossolov, V; Suarez Gonzalez, J; Darwish, MR; De Wolf, EA; Di Croce, D; Janssen, X; Lauwers, J; Lelek, A; Pieters, M; Rejeb Sfar, H; Van Haevermaet, H; Van Mechelen, P; Van Putte, S; Van Remortel, N; Blekman, F; Bols, ES; Chhibra, SS; D'Hondt, J; De Clercq, J; Lontkovskyi, D; Lowette, S; Marchesini, I; Moortgat, S; Moreels, L; Python, Q; Skovpen, K; Tavernier, S; Van Doninck, W; Van Mulders, P; Van Parijs, I; Beghin, D; Bilin, B; Brun, H; Clerbaux, B; De Lentdecker, G; Delannoy, H; Dorney, B; Favart, L; Grebenyuk, A; Kalsi, AK; Luetic, J; Popov, A; Postiau, N; Starling, E; Thomas, L; Vander Velde, C; Vanlaer, P; Vannerom, D; Wang, Q; Cornelis, T; Dobur, D; Khvastunov, I; Roskas, C; Trocino, D; Tytgat, M; Verbeke, W; Vermassen, B; Vit, M; Zaganidis, N; Bondu, O; Bruno, G; Caputo, C; David, P; Delaere, C; Delcourt, M; Giammanco, A; Krintiras, G; Lemaitre, V; Magitteri, A; Piotrzkowski, K; Prisciandaro, J; Saggio, A; Vidal Marono, M

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/20744

Title:	Production of Λ<inf>c</inf><sup>+</sup> baryons in proton-proton and lead-lead collisions at s<inf><inf>NN</inf></inf>=5.02TeV
Authors:	Sirunyan, AM Tumasyan, A Adam, W Ambrogi, F Bergauer, T Brandstetter, J Dragicevic, M Erö, J Escalante Del Valle, A Flechl, M Frühwirth, R Jeitler, M Krammer, N Krätschmer, I Liko, D Madlener, T Mikulec, I Rad, N Schieck, J Schöfbeck, R Spanring, M Spitzbart, D Waltenberger, W Wittmann, J Wulz, CE Zarucki, M Drugakov, V Mossolov, V Suarez Gonzalez, J Darwish, MR De Wolf, EA Di Croce, D Janssen, X Lauwers, J Lelek, A Pieters, M Rejeb Sfar, H Van Haevermaet, H Van Mechelen, P Van Putte, S Van Remortel, N Blekman, F Bols, ES Chhibra, SS D'Hondt, J De Clercq, J Lontkovskyi, D Lowette, S Marchesini, I Moortgat, S Moreels, L Python, Q Skovpen, K Tavernier, S Van Doninck, W Van Mulders, P Van Parijs, I Beghin, D Bilin, B Brun, H Clerbaux, B De Lentdecker, G Delannoy, H Dorney, B Favart, L Grebenyuk, A Kalsi, AK Luetic, J Popov, A Postiau, N Starling, E Thomas, L Vander Velde, C Vanlaer, P Vannerom, D Wang, Q Cornelis, T Dobur, D Khvastunov, I Roskas, C Trocino, D Tytgat, M Verbeke, W Vermassen, B Vit, M Zaganidis, N Bondu, O Bruno, G Caputo, C David, P Delaere, C Delcourt, M Giammanco, A Krintiras, G Lemaitre, V Magitteri, A Piotrzkowski, K Prisciandaro, J Saggio, A Vidal Marono, M
Keywords:	CMS;Physics;Lambda(c) baryons;Nuclear modiﬁcation factor;Heavy ﬂavor
Issue Date:	25-Feb-2020
Publisher:	Elsevier
Citation:	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2020, 803
Abstract:	© 2020 The Author(s) The transverse momentum (pT) spectra of inclusively produced Λc+ baryons are measured via the exclusive decay channel Λc+→pK−π+ using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The measurement is performed within the Λc+ rapidity interval \|y\|<1 in the pT range of 5–20GeV/c in pp and 10–20GeV/c in PbPb collisions. The observed yields of Λc+ for pT of 10–20GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The Λc+/D0 production ratio in pp collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from pp collisions in their common pT range.
URI:	http://bura.brunel.ac.uk/handle/2438/20744
DOI:	http://dx.doi.org/10.1016/j.physletb.2020.135328
ISSN:	0370-2693 http://dx.doi.org/10.1016/j.physletb.2020.135328
Appears in Collections:	Dept of Electronic and Electrical Engineering Research Papers

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