A Measurement of CP Asymmetry in b->sgamma using a Sum of Exclusive Final States

The BaBar Collaboration; Philip Clark

doi:10.1103/PhysRevLett.101.171804

A Measurement of CP Asymmetry in b->sgamma using a Sum of Exclusive Final States

The BaBar Collaboration, Philip Clark

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We perform a measurement of the CP asymmetry in b->sgamma decays using a sample of 383 BB events collected by the BABAR detector at the PEP-II asymmetric B factory. We reconstruct sixteen flavor-specific B decay modes containing a high-energy photon and a hadronic system (Xs) containing an s quark. We measure the \CP asymmetry to be -0.011+/- 0.030(stat)+/-0.014(syst) for a photon energy threshold at 1.6 GeV and the hadronic system mass between 0.6 and 2.8 GeV/c2.

Original language	English
Journal	Physical Review Letters
DOIs	https://doi.org/10.1103/PhysRevLett.101.171804
Publication status	Published - 30 May 2008

Keywords

hep-ex

Access to Document

10.1103/PhysRevLett.101.171804

Cite this

@article{478f4fef171d42ecba09210eecb0e024,

title = "A Measurement of CP Asymmetry in b->sgamma using a Sum of Exclusive Final States",

abstract = "We perform a measurement of the CP asymmetry in b->sgamma decays using a sample of 383 BB events collected by the BABAR detector at the PEP-II asymmetric B factory. We reconstruct sixteen flavor-specific B decay modes containing a high-energy photon and a hadronic system (Xs) containing an s quark. We measure the \CP asymmetry to be -0.011+/- 0.030(stat)+/-0.014(syst) for a photon energy threshold at 1.6 GeV and the hadronic system mass between 0.6 and 2.8 GeV/c2.",

keywords = "hep-ex",

author = "B. Aubert and Stephen Playfer and {The BaBar Collaboration} and Philip Clark",

note = "7 pages, 10 figures, submitted to Phys. Rev. Lett",

year = "2008",

month = may,

day = "30",

doi = "10.1103/PhysRevLett.101.171804",

language = "English",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

}

TY - JOUR

T1 - A Measurement of CP Asymmetry in b->sgamma using a Sum of Exclusive Final States

AU - Aubert, B.

AU - Playfer, Stephen

AU - The BaBar Collaboration

AU - Clark, Philip

N1 - 7 pages, 10 figures, submitted to Phys. Rev. Lett

PY - 2008/5/30

Y1 - 2008/5/30

N2 - We perform a measurement of the CP asymmetry in b->sgamma decays using a sample of 383 BB events collected by the BABAR detector at the PEP-II asymmetric B factory. We reconstruct sixteen flavor-specific B decay modes containing a high-energy photon and a hadronic system (Xs) containing an s quark. We measure the \CP asymmetry to be -0.011+/- 0.030(stat)+/-0.014(syst) for a photon energy threshold at 1.6 GeV and the hadronic system mass between 0.6 and 2.8 GeV/c2.

AB - We perform a measurement of the CP asymmetry in b->sgamma decays using a sample of 383 BB events collected by the BABAR detector at the PEP-II asymmetric B factory. We reconstruct sixteen flavor-specific B decay modes containing a high-energy photon and a hadronic system (Xs) containing an s quark. We measure the \CP asymmetry to be -0.011+/- 0.030(stat)+/-0.014(syst) for a photon energy threshold at 1.6 GeV and the hadronic system mass between 0.6 and 2.8 GeV/c2.

KW - hep-ex

UR - http://www.scopus.com/inward/record.url?scp=55149123173&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.101.171804

DO - 10.1103/PhysRevLett.101.171804

M3 - Article

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

ER -

A Measurement of CP Asymmetry in b->sgamma using a Sum of Exclusive Final States

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this