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Angular distributions in the decay B -> K*l(+)l(-)

Tools

BaBar Collaboration (Including:

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Garra Tico, J., Grauges, E. et al.

). (2009) Angular distributions in the decay B -> K*l(+)l(-). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.79 (No.3). article no. 031102. ISSN 1550-7998

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1103/PhysRevD.79.031102

Abstract

We use a sample of 384 X 10(6) B (B) over bar events collected with the BABAR detector at the PEP-II e(+)e(-) collider to study angular distributions in the rare decays B -> K(*)l(+)l(-), where l(+)l(-) is either e(+)e(-) or mu(+)mu(-). For low dilepton invariant masses, m(ee) < 2.5 GeV/c(2), we measure a lepton forward-backward asymmetry A(FB) = 0.24(-0.23)(+0.18) +/- 0.05 and K* longitudinal polarization F-L = 0.35 +/- 0.16 +/- 0.04. For m(ee) > 3.2 GeV/c(2), we measure A(FB) = 0.76(-0.32)(+0.52) +/- 0.07 F-L = 0.71(-0.22)(+0.20) +/- 0.04.

Item Type:

Journal Article

Subjects:

Q Science > QB Astronomy
Q Science > QC Physics

Divisions:

Faculty of Science > Physics

Journal or Publication Title:

Physical Review D (Particles, Fields, Gravitation and Cosmology)

Publisher:

American Physical Society

ISSN:

1550-7998