A search for the D0→π+π-μ+μ- decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb-1 recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D0→π+π-Φ(→μ+μ-) under the assumption of a phase-space model, is found to be B(D0→π+π-μ+μ-)/BD0→π+π-Φ(→μ+μ-)) < 0.96 at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D0→π+π-μ+μ-) < 5.5 × 10-7 at 90% confidence level. This is the most stringent to date. © 2013 The Authors.

Search for the decay D0→π+π-μ+μ- / Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Cartelle, P.A., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., Andrews, J.E., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 728:1(2014), pp. 234-243. [10.1016/j.physletb.2013.11.053]

Search for the decay D0→π+π-μ+μ-

Bizzeti A.;
2014

Abstract

A search for the D0→π+π-μ+μ- decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb-1 recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D0→π+π-Φ(→μ+μ-) under the assumption of a phase-space model, is found to be B(D0→π+π-μ+μ-)/BD0→π+π-Φ(→μ+μ-)) < 0.96 at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D0→π+π-μ+μ-) < 5.5 × 10-7 at 90% confidence level. This is the most stringent to date. © 2013 The Authors.
2014
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234
243
Search for the decay D0→π+π-μ+μ- / Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Cartelle, P.A., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., Andrews, J.E., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 728:1(2014), pp. 234-243. [10.1016/j.physletb.2013.11.053]
Aaij, R.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Cartelle...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1209211
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