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Measurement of the Direct CP-violating Charge Asymmetry in D±s→ϕπ± Decays

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Measurement of the Direct CP-violating Charge Asymmetry in D±s→ϕπ± Decays. / D0 Collaboration.

In: Physical review letters, Vol. 112, 111804, 21.03.2014.

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D0 Collaboration. / Measurement of the Direct CP-violating Charge Asymmetry in D±s→ϕπ± Decays. In: Physical review letters. 2014 ; Vol. 112.

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@article{617281279ade4d939a5805c0967bc69b,
title = "Measurement of the Direct CP-violating Charge Asymmetry in D±s→ϕπ± Decays",
abstract = "We present a measurement of the direct CP-violating charge asymmetry in D+s→ϕπ± decays where the ϕ meson decays to K+K−, using the full Run II data set with an integrated luminosity of 10.4  fb−1 of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. The normalized difference ACP in the yield of D+s and D−s mesons in these decays is measured by fitting the difference between their reconstructed invariant mass distributions. This results in an asymmetry of ACP=[−0.38±0.27]%, which is the most precise measurement of this quantity to date. The result is consistent with the standard model prediction of zero CP asymmetry in this decay.",
author = "V.M. Abazov and B. Abbott and B.S. Acharya and T. Adams and J.P. Agnew and G.D. Alexeev and G. Alkhazov and A. Alton and A. Askew and S. Atkins and K. Augsten and C. Avila and F. Badaud and L. Bagby and B. Baldin and D.V. Bandurin and E. Barberis and P. Baringer and J.F. Bartlett and U. Bassler and V. Bazterra and M. Begalli and L. Bellantoni and G. Bernardi and R. Bernhard and I. Bertram and {Besanifmmode {\c c}else {\c c}on}, M. and R. Beuselinck and P.C. Bhat and S. Bhatia and V. Bhatnagar and G. Blazey and S. Blessing and K. Bloom and A. Boehnlein and D. Boline and E.E. Boos and G. Borissov and A. Brandt and O. Brandt and R. Brock and A. Bross and X.B. Bu and M. Buehler and V. Buescher and H. Fox and D. Price and P.N. Ratoff and A. Ross and M.R.J. Williams and {D0 Collaboration}",
year = "2014",
month = mar,
day = "21",
doi = "10.1103/PhysRevLett.112.111804",
language = "English",
volume = "112",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Measurement of the Direct CP-violating Charge Asymmetry in D±s→ϕπ± Decays

AU - Abazov, V.M.

AU - Abbott, B.

AU - Acharya, B.S.

AU - Adams, T.

AU - Agnew, J.P.

AU - Alexeev, G.D.

AU - Alkhazov, G.

AU - Alton, A.

AU - Askew, A.

AU - Atkins, S.

AU - Augsten, K.

AU - Avila, C.

AU - Badaud, F.

AU - Bagby, L.

AU - Baldin, B.

AU - Bandurin, D.V.

AU - Barberis, E.

AU - Baringer, P.

AU - Bartlett, J.F.

AU - Bassler, U.

AU - Bazterra, V.

AU - Begalli, M.

AU - Bellantoni, L.

AU - Bernardi, G.

AU - Bernhard, R.

AU - Bertram, I.

AU - Besanifmmode çelse çon, M.

AU - Beuselinck, R.

AU - Bhat, P.C.

AU - Bhatia, S.

AU - Bhatnagar, V.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, K.

AU - Boehnlein, A.

AU - Boline, D.

AU - Boos, E.E.

AU - Borissov, G.

AU - Brandt, A.

AU - Brandt, O.

AU - Brock, R.

AU - Bross, A.

AU - Bu, X.B.

AU - Buehler, M.

AU - Buescher, V.

AU - Fox, H.

AU - Price, D.

AU - Ratoff, P.N.

AU - Ross, A.

AU - Williams, M.R.J.

AU - D0 Collaboration

PY - 2014/3/21

Y1 - 2014/3/21

N2 - We present a measurement of the direct CP-violating charge asymmetry in D+s→ϕπ± decays where the ϕ meson decays to K+K−, using the full Run II data set with an integrated luminosity of 10.4  fb−1 of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. The normalized difference ACP in the yield of D+s and D−s mesons in these decays is measured by fitting the difference between their reconstructed invariant mass distributions. This results in an asymmetry of ACP=[−0.38±0.27]%, which is the most precise measurement of this quantity to date. The result is consistent with the standard model prediction of zero CP asymmetry in this decay.

AB - We present a measurement of the direct CP-violating charge asymmetry in D+s→ϕπ± decays where the ϕ meson decays to K+K−, using the full Run II data set with an integrated luminosity of 10.4  fb−1 of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. The normalized difference ACP in the yield of D+s and D−s mesons in these decays is measured by fitting the difference between their reconstructed invariant mass distributions. This results in an asymmetry of ACP=[−0.38±0.27]%, which is the most precise measurement of this quantity to date. The result is consistent with the standard model prediction of zero CP asymmetry in this decay.

U2 - 10.1103/PhysRevLett.112.111804

DO - 10.1103/PhysRevLett.112.111804

M3 - Journal article

VL - 112

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

M1 - 111804

ER -