A search for the decay B0s→D∗∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help to understand the mechanism behind related decays such as B0s→π+π− and B0s→DD⎯⎯⎯. Systematic uncertainties are minimised by using B0→D∗∓π± as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of (B0s→D∗∓π±)<6.1(7.8)×10−6 at 90% (95%) confidence level.

Search for the decay B_{s}^{0}→D^{*∓}π^{±}

BALDINI, Wander;BOZZI, Concezio;SAVRIE', Mauro;
2013

Abstract

A search for the decay B0s→D∗∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help to understand the mechanism behind related decays such as B0s→π+π− and B0s→DD⎯⎯⎯. Systematic uncertainties are minimised by using B0→D∗∓π± as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of (B0s→D∗∓π±)<6.1(7.8)×10−6 at 90% (95%) confidence level.
2013
R., Aaij; C., Abellan Beteta; B., Adeva; M., Adinolfi; C., Adrover; A., Affolder; Z., Ajaltouni; J., Albrecht; F., Alessio; M., Alexander; S., Ali; G....espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2096413
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 7
social impact