Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
... Babar Collaboration; + view all
(2007)
Measurement of branching fractions and mass spectra of B -> K pi pi gamma.
PHYS REV LETT
, 98
(21)
, Article 211804. 10.1103/PhysRevLett.98.211804.
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Abstract
We present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B -> K pi pi gamma in the range m(K pi pi)< 1.8 GeV/c(2). We reconstruct four final states: K+pi(-)pi(+)gamma, K+pi(-)pi(0)gamma, K-S(0)pi(-)pi(+)gamma, and K-S(0)pi(+)pi(0)gamma, where K-S(0)->pi(+)pi(-). Using 232x10(6) e(+)e(-)-> B (B) over bar events recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy storage ring, we measure the branching fractions B(B+-> K+pi(-)pi(+)gamma)=[2.95 +/- 0.13(stat)+/- 0.20(syst)]x10(-5), B(B-0 -> K+pi(-)pi(0)gamma)=[4.07 +/- 0.22(stat)+/- 0.31(syst)]x10(-5), B(B-0 -> K-0 pi(+)pi(-)gamma)=[1.85 +/- 0.21(stat)+/- 0.12(syst)]x10(-5), and B(B+-> K-0 pi(+)pi(0)gamma)=[4.56 +/- 0.42(stat)+/- 0.31(syst)]x10(-5).
| Type: | Article |
|---|---|
| Title: | Measurement of branching fractions and mass spectra of B -> K pi pi gamma |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.211804 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.211804 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | DECAYS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1303847 |
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