Nuclear medium effects on 𝐵+ meson production are studied using the binary-collision scaled cross section ratio between events of different charged-particle multiplicities from proton-lead collisions. Data, collected by the CMS experiment in 2016 at a nucleon-nucleon center-of-mass energy of √𝑠NN=8.16  TeV, corresponding to an integrated luminosity of 175  nb−1, were used. The scaling factors in the ratio are determined using a novel approach based on the 𝑍→𝜇−⁢𝜇+ cross sections measured in the same events. The scaled ratio for 𝐵+ is consistent with unity for all event multiplicities, putting stringent constraints on nuclear modification for heavy flavor.

Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. w., Bergauer, T., Chatterjee, S., et al. (2025). Search for Nuclear Modifications of 𝐵+ Meson Production in 𝑝-Pb Collisions at √𝑠NN=8.16  TeV. PHYSICAL REVIEW LETTERS, 134(11), 1-20 [10.1103/physrevlett.134.111903].

Search for Nuclear Modifications of 𝐵+ Meson Production in 𝑝-Pb Collisions at √𝑠NN=8.16  TeV

Iemmi, F.;Battilana, C.;Bonacorsi, D.;Borgonovi, L.;Castro, A.;Cuffiani, M.;Diotalevi, T.;Fanfani, A.;Giommi, L.;Guiducci, L.;Lorusso, M.;Paggi, G.;Rossi Tisbeni, S.;Rovelli, T.;Siroli, G.  P.;Fontanesi, E.;
2025

Abstract

Nuclear medium effects on 𝐵+ meson production are studied using the binary-collision scaled cross section ratio between events of different charged-particle multiplicities from proton-lead collisions. Data, collected by the CMS experiment in 2016 at a nucleon-nucleon center-of-mass energy of √𝑠NN=8.16  TeV, corresponding to an integrated luminosity of 175  nb−1, were used. The scaling factors in the ratio are determined using a novel approach based on the 𝑍→𝜇−⁢𝜇+ cross sections measured in the same events. The scaled ratio for 𝐵+ is consistent with unity for all event multiplicities, putting stringent constraints on nuclear modification for heavy flavor.
2025
Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. w., Bergauer, T., Chatterjee, S., et al. (2025). Search for Nuclear Modifications of ��+ Meson Production in ��-Pb Collisions at √��NN=8.16  TeV. PHYSICAL REVIEW LETTERS, 134(11), 1-20 [10.1103/physrevlett.134.111903].
Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J.  w.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Hussain, P.  s.; Jeitler, M...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1041743
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