Corpus ID: 119316483

# Evidence for $b \to d \gamma$ Transitions From a Sum of Exclusive Final States in the Hadronic Final State Mass Range $1.0-GeV/c^{2}$ < M(X($d$) ) < $1.8-GeV/c^{2}$

@inproceedings{Aubert2007EvidenceF,
title={Evidence for \$b \to d \gamma\$ Transitions From a Sum of Exclusive Final States in the Hadronic Final State Mass Range \$1.0-GeV/c^\{2\}\$ < M(X(\$d\$) ) < \$1.8-GeV/c^\{2\}\$},
author={The BaBar Collaboration B. Aubert and et al.},
year={2007}
}
• Published 2007
• Physics
• We present preliminary results of a search for $B\to X_d\gamma$ decays with a hadronic mass 1.0 GeV/$c^2<M(X_d)<$1.8 GeV/$c^2$. We consider seven final states with up to four charged pions and one neutral pion or $\eta$, which correspond to about 50% of the total $X_d$ fragmentation in this mass range. Based on a sample of 383 million $B\bar{B}$ events collected by the BaBar experiment at PEP-II, we measure a partial branching fraction \$\sum\nolimits^{7}_{X_d=1}{{\ensuremath{\cal B}\xspace}}(B… CONTINUE READING

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