A search for exclusive decays of B-d(0) and B-s(0) mesons has been preformed in the channels B-d(0) --> J eta, B-s(0) --> J eta, B-d(0) --> J(pi)(0) and B-s(0) --> J(pi)(0). The data smaple consisted of more than three and a half million hadronic Z decays collected by the L3 experiment at LEP from 1991 through 1995. No candidate events have been observed for any of the modes thus determining upper limits at 90% confidence level: 3.2 x 10(-4) on Br(B-d(0) --> J(pi)(0)) and the first experimental limits: Br(B-d(0) --> J eta) < 1.2 x 10(-3), Br(B-s(0) --> J eta) < 3.8 x 10(-3), Br(B-s(0) --> J pi(0)) < 1.2 x 10(-3).

Search for exclusive B decays to J and eta or pi(0) with the L3 detector / M. Acciarri, O. Adriani, M. AguilarBenitez, S. Ahlen, B. Alpat, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, G. Alverson, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, F. Anselmo, D. Antreasyan, A. Arefiev, T. Azemoon, T. Aziz, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 391:(1997), pp. 481-490. [10.1016/S0370-2693(96)01584-5]

Search for exclusive B decays to J and eta or pi(0) with the L3 detector

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;
1997

Abstract

A search for exclusive decays of B-d(0) and B-s(0) mesons has been preformed in the channels B-d(0) --> J eta, B-s(0) --> J eta, B-d(0) --> J(pi)(0) and B-s(0) --> J(pi)(0). The data smaple consisted of more than three and a half million hadronic Z decays collected by the L3 experiment at LEP from 1991 through 1995. No candidate events have been observed for any of the modes thus determining upper limits at 90% confidence level: 3.2 x 10(-4) on Br(B-d(0) --> J(pi)(0)) and the first experimental limits: Br(B-d(0) --> J eta) < 1.2 x 10(-3), Br(B-s(0) --> J eta) < 3.8 x 10(-3), Br(B-s(0) --> J pi(0)) < 1.2 x 10(-3).
1997
391
481
490
M. Acciarri;O. Adriani;M. AguilarBenitez;S. Ahlen;B. Alpat;J. Alcaraz;G. Alemanni;J. Allaby;A. Aloisio;G. Alverson;M. G. Alviggi;G. Ambros...espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772864
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 7
social impact