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oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/121012026-10-18T20:27:03Zopenairedrivercom_ebyu_10000col_ebyu_10001

Measurement of the Dependence of the Hadron Production Fraction Ratios fs/fu and fd/fu on B Meson Kinematic Variables in Proton-Proton Collisions at Formula PresentedTumasyan, A.Adam, W.Andrejkovic, J.W.Bergauer, T.Chatterjee, S.Damanakis, K.Dragicevic, M.Escalante Del Valle, A.Hussain, P.S.Jeitler, M.Krammer, N.Lechner, L.Liko, D.Mikulec, I.Paulitsch, P.Schieck, J.Schöfbeck, R.Schwarz, D.Sonawane, M.Templ, S.Waltenberger, W.Wulz, C.-E.Darwish, M.R.Janssen, T.Kello, T.Rejeb Sfar, H.Van Mechelen, P.Bols, E.S.D’Hondt, J.De Moor, A.Delcourt, M.El Faham, H.Lowette, S.Morton, A.Müller, D.Sahasransu, A.R.Tavernier, S.Van Doninck, W.Van Putte, S.Vannerom, D.Clerbaux, B.De Lentdecker, G.Favart, L.Hohov, D.Jaramillo, J.Lee, K.Mahdavikhorrami, M.Makarenko, I.Malara, A.Paredes, S.HadronsA-centerB mesonsCenter-of-mass energiesData sampleDecay channelsHadron productionKinematics variablesMeasurements ofProton proton collisionsTransverse momentaarticlehadronmesonBosonsThe dependence of the ratio between the B s 0 and B + hadron production fractions, f s / f u , on the transverse momentum ( p T ) and rapidity of the B mesons is studied using the decay channels B s 0 → J / ψ ϕ and B + → J / ψ K + . The analysis uses a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of 61.6 fb - 1 . The f s / f u ratio is observed to depend on the B p T and to be consistent with becoming asymptotically constant at large p T . No rapidity dependence is observed. The ratio of the B 0 to B + meson production fractions, f d / f u , is also measured, for the first time in proton-proton collisions, using the B 0 → J / ψ K * 0 decay channel. The result is found to be within 1 standard deviation of unity and independent of p T and rapidity, as expected from isospin invariance. © 2023 CERN, for the CMS Collaboration.American Physical Society2023Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/12101https://doi.org/10.1103/physrevlett.131.1219010031-9007enPhysical Review Lettersinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/12101