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 sqrt(s)_NN=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 to mu+ mu- 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.
Search for Nuclear Modifications of B+ Meson Production in p-Pb Collisions at sqrt(s)_NN = 8.16 TeV
Tornago, M.;Cappati, A.;Amapane, N.;Argiro, S.;Bellan, R.;Bellora, A.;Borca, C.;Costa, M.;Covarelli, R.;Grippo, M.;Kiani, B.;Luongo, F.;Markovic, L.;Mecca, A.;Menzio, L.;Meridiani, P.;Migliore, E.;Mulargia, R.;Obertino, M. M.;Pacher, L.;Siviero, F.;Sola, V.;Solano, A.;Tarricone, C.;Umoret, G.;Shchelina, K.;Rumerio, P.;Ravera, F.;Salvatico, R.;Vagnerini, A.;
2025-01-01
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 sqrt(s)_NN=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 to mu+ mu- 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.| File | Dimensione | Formato | |
|---|---|---|---|
|
PhysRevLett.134.111903.pdf
Accesso aperto
Tipo di file:
PDF EDITORIALE
Dimensione
951.19 kB
Formato
Adobe PDF
|
951.19 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.



