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Search for CP violation in semileptonic Bs decays

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Search for CP violation in semileptonic Bs decays. / Collaboration, D0; Abazov, V.; Bertram, Iain; Borissov, Guennadi; Williams, Mark; Fox, Harald; Ratoff, Peter.

In: Physical Review D, Vol. 82, No. 1, 012003, 24.04.2009.

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@article{3a0a72e9cec4462b938c58d98541f76b,
title = "Search for CP violation in semileptonic Bs decays",
abstract = "We have performed a search for CP violation in a sample of Bs -> Ds mu X decays corresponding to $5$~fb$^{-1}$ of proton-antiproton collisions collected by the D0 detector in Run~II at the Fermilab Tevatron Collider. New physics in $B_s^0$ mixing could contribute a significant CP violating weak phase, which would be observed as a difference in the decay-time distribution for $B_s^0\to \bar{B}_s^0$ oscillated states versus that for $\bar{B}_s^0\to {B}_s^0$. A fit to the decay-time distributions of the $B_s^0/\bar{B}_s^0$ candidates yields the flavor-specific asymmetry $a_{fs}^{s}=[-1.7\pm 9.1\mathrm{(stat)}^{+1.4}_{-1.5}\mathrm{(syst)}] \times 10^{-3}$, which excludes CP violation due to new physics within the experimental sensitivity.",
author = "D0 Collaboration and V. Abazov and Iain Bertram and Guennadi Borissov and Mark Williams and Harald Fox and Peter Ratoff",
note = "{\textcopyright} 2010 American Physical Society",
year = "2009",
month = apr,
day = "24",
doi = "10.1103/PhysRevD.82.012003",
language = "English",
volume = "82",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Search for CP violation in semileptonic Bs decays

AU - Collaboration, D0

AU - Abazov, V.

AU - Bertram, Iain

AU - Borissov, Guennadi

AU - Williams, Mark

AU - Fox, Harald

AU - Ratoff, Peter

N1 - © 2010 American Physical Society

PY - 2009/4/24

Y1 - 2009/4/24

N2 - We have performed a search for CP violation in a sample of Bs -> Ds mu X decays corresponding to $5$~fb$^{-1}$ of proton-antiproton collisions collected by the D0 detector in Run~II at the Fermilab Tevatron Collider. New physics in $B_s^0$ mixing could contribute a significant CP violating weak phase, which would be observed as a difference in the decay-time distribution for $B_s^0\to \bar{B}_s^0$ oscillated states versus that for $\bar{B}_s^0\to {B}_s^0$. A fit to the decay-time distributions of the $B_s^0/\bar{B}_s^0$ candidates yields the flavor-specific asymmetry $a_{fs}^{s}=[-1.7\pm 9.1\mathrm{(stat)}^{+1.4}_{-1.5}\mathrm{(syst)}] \times 10^{-3}$, which excludes CP violation due to new physics within the experimental sensitivity.

AB - We have performed a search for CP violation in a sample of Bs -> Ds mu X decays corresponding to $5$~fb$^{-1}$ of proton-antiproton collisions collected by the D0 detector in Run~II at the Fermilab Tevatron Collider. New physics in $B_s^0$ mixing could contribute a significant CP violating weak phase, which would be observed as a difference in the decay-time distribution for $B_s^0\to \bar{B}_s^0$ oscillated states versus that for $\bar{B}_s^0\to {B}_s^0$. A fit to the decay-time distributions of the $B_s^0/\bar{B}_s^0$ candidates yields the flavor-specific asymmetry $a_{fs}^{s}=[-1.7\pm 9.1\mathrm{(stat)}^{+1.4}_{-1.5}\mathrm{(syst)}] \times 10^{-3}$, which excludes CP violation due to new physics within the experimental sensitivity.

UR - http://www.scopus.com/inward/record.url?scp=77955582638&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.82.012003

DO - 10.1103/PhysRevD.82.012003

M3 - Journal article

VL - 82

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 1

M1 - 012003

ER -