Electroweak Penguin Decays at Belle

2006 ◽  
Vol 156 (1) ◽  
pp. 186-189
Author(s):  
Akimasa Ishikawa
Keyword(s):  
Electroweak Penguin ◽  
Penguin Decays

scholarly journals SEARCH FOR B+ → K+ℓ+ℓ- AND B0 → K*+ℓ+ ℓ-

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 458-460
Author(s):  
◽  
NATALIA KUZNETSOVA
Keyword(s):  
Storage Ring ◽  
Electroweak Penguin ◽  
Upper Limits ◽  
Penguin Decays ◽  
Babar Detector

Using a sample of [Formula: see text] events collected with the BABAR detector at the PEP-II storage ring, we search for the electroweak penguin decays B+→ K+e+e-, B+→ K+μ+μ-, B0→K*0e+e-, and B0→ K*0μ+μ-. We observe no significant signals for these modes and set preliminary 90% C.L. upper limits of [Formula: see text]

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