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CONF-08/003 Measurement of branching fractions of B0 decays to K1(1270)+ pi- and K1(1400)+ pi-.

Doc Type

Conference Submissions

Record Created

July 9, 2008

SLAC-PUB

SLAC-PUB-13330 No citations

Preprint #

0807.4760 [hep-ex]

Abstract

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We present a measurement of the branching fraction of neutral B meson 
decaying to final states containing a K_1 meson, i.e. K_1(1270) and K_1(1400), 
and a charged pion. The data, collected with the BaBar detector at the Stanford 
Linear Accelerator Center, represent 454 million BBbar pairs produced in e+e- 
annihilation. We measure the branching fraction BF(B0 -> K_1+ pi-) = (31.0 +- 
2.7 +- 6.9) x 10^-6, where the first error quoted is statistical and the second 
is systematic. In the framework of the K-matrix formalism used to describe 
these decays, we also set limits on the ratio of the production constants for 
the K_1(1270)+ and K_1(1400)+ mesons in B0 decays.

Revisions and Files

1 revised July 9, 2008

File Date Thumbnails	File Name	File Type	File Format	File Size (Kb)	Comments
31-JUL-2008	0807.4760v1.pdf	Paper (journal paper or conference submission by BABAR Collaboration)	pdf	256.01	Submitted to ICHEP2008
31-JUL-2008	abstract.txt	Abstract	txt	0.66
31-JUL-2008	babar-conf-08003.pdf	Paper (journal paper or conference submission by BABAR Collaboration)	pdf	240.32
31-JUL-2008	babar-conf-08003.ps.gz	Paper (journal paper or conference submission by BABAR Collaboration)	ps.gz	224.23
31-JUL-2008	fig01a.eps	Figure or plot	eps	20.23
31-JUL-2008	fig01b.eps	Figure or plot	eps	14.27
31-JUL-2008	fig02.eps	Figure or plot	eps	41.06
31-JUL-2008	fig03.eps	Figure or plot	eps	33.26
31-JUL-2008	fig04a.eps	Figure or plot	eps	206.58
31-JUL-2008	fig04b.eps	Figure or plot	eps	21.68

Submitted To	2008 - 34th International Conference on High Energy Physics
Date Submitted	July 30, 2008