A search for the decays B-d,s(0) --> gamma gamma in 2.95 million hadronic Z decays has been performed using the L3 detector at LEP. No candidates are found in the signal region and upper limits have been set on the branching ratios: Br(B-d(0) --> gamma gamma) < 3.9 x 10(-5) and Br(B-s(0) --> gamma gamma) < 14.8 x 10(-5) at 90% CL. These are the first limits set on these exclusive rare decays.

Search For the Decays B-d(0)-]gamma-gamma and B-s(0)-]gamma-gamma / M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, B. ALPAT, J. ALCARAZ, J. ALLABY, A. ALOISIO, G. ALVERSON, M. G. ALVIGGI, G. AMBROSI, H. ANDERHUB, V. P. ANDREEV, T. ANGELESCU, D. ANTREASYAN, A. AREFIEV, T. AZEMOON, T. AZIZ, P. BAGNAIA, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 363:(1995), pp. 137-144. [10.1016/0370-2693(95)01224-E]

Search For the Decays B-d(0)-]gamma-gamma and B-s(0)-]gamma-gamma

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;M. LENTI;
1995

Abstract

A search for the decays B-d,s(0) --> gamma gamma in 2.95 million hadronic Z decays has been performed using the L3 detector at LEP. No candidates are found in the signal region and upper limits have been set on the branching ratios: Br(B-d(0) --> gamma gamma) < 3.9 x 10(-5) and Br(B-s(0) --> gamma gamma) < 14.8 x 10(-5) at 90% CL. These are the first limits set on these exclusive rare decays.
1995
363
137
144
M. ACCIARRI;A. ADAM;O. ADRIANI;M. AGUILARBENITEZ;S. AHLEN;B. ALPAT;J. ALCARAZ;J. ALLABY;A. ALOISIO;G. ALVERSON;M. G. ALVIGGI;G. AMBROSI;H....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/2158/772822
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 14
  • ???jsp.display-item.citation.isi??? 11
social impact