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Search for $$B^0 to X(3872) gamma$$

$$B^0 to X(3872) gamma$$の探索

Chou, P.-C.*; 谷田 聖; Belle Collaboration*; 他192名*

Chou, P.-C.*; Tanida, Kiyoshi; Belle Collaboration*; 192 of others*

We report the results of a search for the decay $$B^0 to X(3872)(to J/psi pi^+ pi^-) gamma$$. The analysis is performed on a data sample corresponding to an integrated luminosity of $$711,{rm fb}^{-1}$$ and containing $$772 times 10^6 Bbar{B}$$ pairs, collected with the Belle detector at the KEKB asymmetric-energy $$e^+ e^-$$ collider running at the $$Upsilon(4S)$$ resonance energy. We find no evidence for a signal and place an upper limit of $$mathcal{B}(B^0 to X(3872)gamma)times mathcal{B}(X(3872) to J/psi pi^+ pi^-) < 5.1 times 10^{-7}$$ at 90% confidence level.

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パーセンタイル:100

分野:Astronomy & Astrophysics

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