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Evidence for the decay B_s^0 --> D_s^(*)D_s^(*) and a measurement of Delta_Gamma_s^CP/Gamma_s

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Evidence for the decay B_s^0 --> D_s^(*)D_s^(*) and a measurement of Delta_Gamma_s^CP/Gamma_s. / Collaboration, D0; Bertram, Iain; Borissov, Guennadi; Fox, Harald; Williams, Mark; Ratoff, Peter; Love, Peter; Rakitin, Alexander; Sopczak, Andre.

In: Physical review letters, Vol. 102, No. 9, 091801, 03.03.2009.

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@article{013f4f56711e4f4a9f289d0973424af8,
title = "Evidence for the decay B_s^0 --> D_s^(*)D_s^(*) and a measurement of Delta_Gamma_s^CP/Gamma_s",
abstract = "We search for the semi-inclusive process B_s^0 --> D_s^(*)D_s^(*) using 2.8 fb^-1 of ppbar collisions at s^(1/2) = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6 +/- 8.4 signal events with a significance above background of 3.2 standard deviations yielding a branching ratio of Br(B_s^0 --> D_s^(*)D_s^(*)) = 0.035 +/- 0.010(stat) +/- 0.011(syst). Under certain theoretical assumptions, these double-charm final states saturate CP-even eigenstates in the B_s^0 decays resulting in a width difference of Delta_Gamma_s^CP/Gamma_s = 0.072 +/- 0.021(stat) +/- 0.022(syst).",
author = "D0 Collaboration and Iain Bertram and Guennadi Borissov and Harald Fox and Mark Williams and Peter Ratoff and Peter Love and Alexander Rakitin and Andre Sopczak",
note = "{\textcopyright} 2009 The American Physical Society submitted to Phys. Rev. Lett",
year = "2009",
month = mar,
day = "3",
doi = "10.1103/PhysRevLett.102.091801",
language = "English",
volume = "102",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "9",

}

RIS

TY - JOUR

T1 - Evidence for the decay B_s^0 --> D_s^(*)D_s^(*) and a measurement of Delta_Gamma_s^CP/Gamma_s

AU - Collaboration, D0

AU - Bertram, Iain

AU - Borissov, Guennadi

AU - Fox, Harald

AU - Williams, Mark

AU - Ratoff, Peter

AU - Love, Peter

AU - Rakitin, Alexander

AU - Sopczak, Andre

N1 - © 2009 The American Physical Society submitted to Phys. Rev. Lett

PY - 2009/3/3

Y1 - 2009/3/3

N2 - We search for the semi-inclusive process B_s^0 --> D_s^(*)D_s^(*) using 2.8 fb^-1 of ppbar collisions at s^(1/2) = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6 +/- 8.4 signal events with a significance above background of 3.2 standard deviations yielding a branching ratio of Br(B_s^0 --> D_s^(*)D_s^(*)) = 0.035 +/- 0.010(stat) +/- 0.011(syst). Under certain theoretical assumptions, these double-charm final states saturate CP-even eigenstates in the B_s^0 decays resulting in a width difference of Delta_Gamma_s^CP/Gamma_s = 0.072 +/- 0.021(stat) +/- 0.022(syst).

AB - We search for the semi-inclusive process B_s^0 --> D_s^(*)D_s^(*) using 2.8 fb^-1 of ppbar collisions at s^(1/2) = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6 +/- 8.4 signal events with a significance above background of 3.2 standard deviations yielding a branching ratio of Br(B_s^0 --> D_s^(*)D_s^(*)) = 0.035 +/- 0.010(stat) +/- 0.011(syst). Under certain theoretical assumptions, these double-charm final states saturate CP-even eigenstates in the B_s^0 decays resulting in a width difference of Delta_Gamma_s^CP/Gamma_s = 0.072 +/- 0.021(stat) +/- 0.022(syst).

U2 - 10.1103/PhysRevLett.102.091801

DO - 10.1103/PhysRevLett.102.091801

M3 - Journal article

VL - 102

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 9

M1 - 091801

ER -