The decays B-d(0), B-s(0)--> e(+)e(-), mu(+)mu(-), e(+/-)mu(-/+) are LEP I data sample collected by the L3 detector. No signals are observed, therefore upper limits at the 90% (95%) confidence levels are set on the following branching fractions: Br(B-d(0) --> e(+)e(-)) < 1.4(1.8) x 10(-5); Br(B-s(0) --> e(+)e(-)) < 5.4(7.0) x 10(-5); Br(B-d(0) --> mu(+)mu(-)) < 1.0(1.4) x 10(-5); Br(B-s(0) -->mu(+)mu(-)) < 3.8(5.1) x 10(-5); Br(B-d(0) --> e(+/-)mu(-/+)) < 1.6(2.0) x 10(-5); Br(B-s(0) --> e(+/-)mu(-/+)) < 4.1(5.3) x 10(-5); The results for B-s(0) --> e(+)e(-) and B-s(0) --> e(+/-)mu(-/+) are the first limits set on these decay models.

Search for neutral B meson decays to two charged leptons / 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. 474-480. [10.1016/S0370-2693(96)01583-3]

Search for neutral B meson decays to two charged leptons

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;
1997

Abstract

The decays B-d(0), B-s(0)--> e(+)e(-), mu(+)mu(-), e(+/-)mu(-/+) are LEP I data sample collected by the L3 detector. No signals are observed, therefore upper limits at the 90% (95%) confidence levels are set on the following branching fractions: Br(B-d(0) --> e(+)e(-)) < 1.4(1.8) x 10(-5); Br(B-s(0) --> e(+)e(-)) < 5.4(7.0) x 10(-5); Br(B-d(0) --> mu(+)mu(-)) < 1.0(1.4) x 10(-5); Br(B-s(0) -->mu(+)mu(-)) < 3.8(5.1) x 10(-5); Br(B-d(0) --> e(+/-)mu(-/+)) < 1.6(2.0) x 10(-5); Br(B-s(0) --> e(+/-)mu(-/+)) < 4.1(5.3) x 10(-5); The results for B-s(0) --> e(+)e(-) and B-s(0) --> e(+/-)mu(-/+) are the first limits set on these decay models.
1997
391
474
480
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
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772863
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