Branching Fraction Limits for B0 Decays to eta' eta, eta' pi0 and eta pi0

Aubert, B.

Stanford Linear Accelerator Center

关键词: 43 Particle Accelerators;    Stanford Linear Accelerator Center Experiment-Hep,Hepex;    Experiment-Hep,Hepex;    Mesons;    Annihilation;   

DOI  :  10.2172/877199
RP-ID  :  SLAC-PUB-11735
RP-ID  :  AC02-76SF00515
RP-ID  :  877199

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来源: UNT Digital Library

【 摘 要 】

We describe searches for decays to two-body charmless final states {eta}'{eta}, {eta}'{pi}{sup 0} and {eta}{pi}{sup 0} of B{sup 0} mesons produced in e{sup +}e{sup -} annihilation. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 232 million produced B{bar B} pairs. The results for branching fractions are, in units of 10{sup -6} (upper limits at 90% C.L.): {Beta}(B{sup 0} {yields} {eta}'{eta}) = 0.2{sub -0.5}{sup +0.7} {+-} 0.4 (< 1.7), {Beta}(B{sup 0} {yields} {eta}{pi}{sup 0}) = 0.6{sub -0.4}{sup +0.5} {+-} 0.1 (< 1.3), and {Beta}(B{sup 0} {yields} {eta}'{pi}{sup 0}) = 0.8{sub -0.6}{sup +0.8} {+-} 0.1 (< 2.1). The first error quoted is statistical and the second systematic.