A search for B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) decays is performed using 1.0 fb(-1) of pp collision data collected at root s = 7 TeV with the LHCb experiment at the Large Hadron Collider. For both decays, the number of observed events is consistent with expectation from background and standard model signal predictions. Upper limits on the branching fractions are determined to be B(B-s(0) -> mu(+)mu(-)) < 4.5(3.8) x 10(-9) and B(B-0 -> mu(+)mu(-)) < 1.0(0.81) x 10(-9) at 95% (90%) confidence level

Aaij, R., Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2012). Strong Constraints on the Rare Decays Bs0-> mu(+)mu(-) and B0 -> mu(+)mu(-). PHYSICAL REVIEW LETTERS, 108(23) [10.1103/PhysRevLett.108.231801].

Strong Constraints on the Rare Decays Bs0-> mu(+)mu(-) and B0 -> mu(+)mu(-)

CALVI, MARTA;Martinelli, M;Pessina, G;
2012

Abstract

A search for B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) decays is performed using 1.0 fb(-1) of pp collision data collected at root s = 7 TeV with the LHCb experiment at the Large Hadron Collider. For both decays, the number of observed events is consistent with expectation from background and standard model signal predictions. Upper limits on the branching fractions are determined to be B(B-s(0) -> mu(+)mu(-)) < 4.5(3.8) x 10(-9) and B(B-0 -> mu(+)mu(-)) < 1.0(0.81) x 10(-9) at 95% (90%) confidence level
Articolo in rivista - Articolo scientifico
flavor physics ; supersymmetry ; B physics ; branching fraction ; rare decay ; experimental results
English
2012
108
23
231801
none
Aaij, R., Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2012). Strong Constraints on the Rare Decays Bs0-> mu(+)mu(-) and B0 -> mu(+)mu(-). PHYSICAL REVIEW LETTERS, 108(23) [10.1103/PhysRevLett.108.231801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/38282
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