Observation of anti-B0s → J/ψ f2′(1525) in J/ψ K+ K− Final States, ABSTRACT: The decay anti-B0s → J/ψ K+ K− is investigated using 0.16 fb^−1 of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψ ϕ channel is well known, final states at higher K+ K− masses have not previously been studied. In the K+ K− mass spectrum we observe a significant signal in the f2′(1525) region as well as a nonresonant component. After subtracting the nonresonant component, we find B(anti-B0s → J/ψ f2′(1525))/B(anti-B0s → J/ψ ϕ) = (26.4 ± 2.7 ± 2.4)%.

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2012). Observation of anti-B0s → J/ψ f2′(1525) in J/ψ K+ K− Final States. PHYSICAL REVIEW LETTERS, 108(15), 1-7 [10.1103/PhysRevLett.108.151801].

Observation of anti-B0s → J/ψ f2′(1525) in J/ψ K+ K− Final States

CARBONE, ANGELO;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;
2012

Abstract

Observation of anti-B0s → J/ψ f2′(1525) in J/ψ K+ K− Final States, ABSTRACT: The decay anti-B0s → J/ψ K+ K− is investigated using 0.16 fb^−1 of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψ ϕ channel is well known, final states at higher K+ K− masses have not previously been studied. In the K+ K− mass spectrum we observe a significant signal in the f2′(1525) region as well as a nonresonant component. After subtracting the nonresonant component, we find B(anti-B0s → J/ψ f2′(1525))/B(anti-B0s → J/ψ ϕ) = (26.4 ± 2.7 ± 2.4)%.
2012
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2012). Observation of anti-B0s → J/ψ f2′(1525) in J/ψ K+ K− Final States. PHYSICAL REVIEW LETTERS, 108(15), 1-7 [10.1103/PhysRevLett.108.151801].
R. Aaij; C. Abellan Beteta; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; G. Alkhazov; P. Alvar...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/115336
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