Evidence for B0s → ϕϕ decay and measurements of branching ratio and ACP for B+ ! ΦK+

CDF Collaboration

doi:10.1103/PhysRevLett.95.031801

Evidence for B⁰_s → ϕϕ decay and measurements of branching ratio and A_CP for B+ ! ΦK+

CDF Collaboration

Physics and Astronomy

University of Florida
The University of Chicago
University of California at Santa Barbara
University of Tsukuba
Fermi National Accelerator Laboratory
University of Padua
University of Michigan, Ann Arbor
Rutgers - The State University of New Jersey, New Brunswick
Scuola Normale Superiore di Pisa
Academia Sinica - Institute of Physics
University of Illinois at Urbana-Champaign
Waseda University
McGill University
University of Toronto
Joint Institute for Nuclear Research
University of California at Los Angeles
University of Oxford
Lawrence Berkeley National Laboratory
Karlsruhe Institute of Technology
Purdue University
Johns Hopkins University
University of California at Davis
Massachusetts Institute of Technology
University of Trieste
University of Wisconsin-Madison
Duke University
Rockefeller University
Argonne National Laboratory
Brandeis University
University of Rochester

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Abstract

We present the first evidence of charmless decays of the B0s meson, the decay B0s ! ϕϕ, and a measurement of the branching ratio BR(B0s → ϕϕ) using 180 pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B+ ! ϕK+ decay are measured. We obtain BR(B0s ! ϕϕ) = [14+-65(stat) ∓ 6(syst) 10-6, BR(B+ ! ϕK+) = [7:6 ∓ 1:3(stat) ∓ 0:6(syst) 10-6, and ACP(B+ ! ϕK+) = -0:07 ∓ 0:17(stat) +- 0 0:: 03 02 (syst). Both decays are governed in the standard model by second order (penguin) b ! sss → amplitudes.

Original language	English
Article number	031801
Journal	Physical Review Letters
Volume	95
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.95.031801
State	Published - Jul 15 2005

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10.1103/PhysRevLett.95.031801

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@article{e88d0ed9019f4db8841fb9096db72fe4,

title = "Evidence for B0s → ϕϕ decay and measurements of branching ratio and ACP for B+ ! ΦK+",

abstract = "We present the first evidence of charmless decays of the B0s meson, the decay B0s ! ϕϕ, and a measurement of the branching ratio BR(B0s → ϕϕ) using 180 pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B+ ! ϕK+ decay are measured. We obtain BR(B0s ! ϕϕ) = [14+-65(stat) ∓ 6(syst) 10-6, BR(B+ ! ϕK+) = [7:6 ∓ 1:3(stat) ∓ 0:6(syst) 10-6, and ACP(B+ ! ϕK+) = -0:07 ∓ 0:17(stat) +- 0 0:: 03 02 (syst). Both decays are governed in the standard model by second order (penguin) b ! sss → amplitudes.",

author = "\{CDF Collaboration\} and D. Acosta and J. Adelman and T. Affolder and T. Akimoto and Albrow, \{M. G.\} and D. Ambrose and S. Amerio and D. Amidei and A. Anastassov and K. Anikeev and A. Annovi and J. Antos and M. Aoki and G. Apollinari and T. Arisawa and Arguin, \{J. F.\} and A. Artikov and W. Ashmanskas and A. Attal and F. Azfar and P. Azzi-Bacchetta and N. Bacchetta and H. Bachacou and W. Badgett and A. Barbaro-Galtieri and Barker, \{G. J.\} and Barnes, \{V. E.\} and Barnett, \{B. A.\} and S. Baroiant and G. Bauer and F. Bedeschi and S. Behari and S. Belforte and G. Bellettini and J. Bellinger and A. Belloni and E. Ben-Haim and D. Benjamin and A. Beretvas and A. Bhatti and M. Binkley and D. Bisello and M. Bishai and Blair, \{R. E.\} and C. Blocker and K. Bloom and B. Blumenfeld and A. Bocci and A. Bodek and D. Tsybychev",

year = "2005",

month = jul,

day = "15",

doi = "10.1103/PhysRevLett.95.031801",

language = "English",

volume = "95",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "3",

}

TY - JOUR

T1 - Evidence for B0s → ϕϕ decay and measurements of branching ratio and ACP for B+ ! ΦK+

AU - CDF Collaboration

AU - Acosta, D.

AU - Adelman, J.

AU - Affolder, T.

AU - Akimoto, T.

AU - Albrow, M. G.

AU - Ambrose, D.

AU - Amerio, S.

AU - Amidei, D.

AU - Anastassov, A.

AU - Anikeev, K.

AU - Annovi, A.

AU - Antos, J.

AU - Aoki, M.

AU - Apollinari, G.

AU - Arisawa, T.

AU - Arguin, J. F.

AU - Artikov, A.

AU - Ashmanskas, W.

AU - Attal, A.

AU - Azfar, F.

AU - Azzi-Bacchetta, P.

AU - Bacchetta, N.

AU - Bachacou, H.

AU - Badgett, W.

AU - Barbaro-Galtieri, A.

AU - Barker, G. J.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Baroiant, S.

AU - Bauer, G.

AU - Bedeschi, F.

AU - Behari, S.

AU - Belforte, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Belloni, A.

AU - Ben-Haim, E.

AU - Benjamin, D.

AU - Beretvas, A.

AU - Bhatti, A.

AU - Binkley, M.

AU - Bisello, D.

AU - Bishai, M.

AU - Blair, R. E.

AU - Blocker, C.

AU - Bloom, K.

AU - Blumenfeld, B.

AU - Bocci, A.

AU - Bodek, A.

AU - Tsybychev, D.

PY - 2005/7/15

Y1 - 2005/7/15

N2 - We present the first evidence of charmless decays of the B0s meson, the decay B0s ! ϕϕ, and a measurement of the branching ratio BR(B0s → ϕϕ) using 180 pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B+ ! ϕK+ decay are measured. We obtain BR(B0s ! ϕϕ) = [14+-65(stat) ∓ 6(syst) 10-6, BR(B+ ! ϕK+) = [7:6 ∓ 1:3(stat) ∓ 0:6(syst) 10-6, and ACP(B+ ! ϕK+) = -0:07 ∓ 0:17(stat) +- 0 0:: 03 02 (syst). Both decays are governed in the standard model by second order (penguin) b ! sss → amplitudes.

AB - We present the first evidence of charmless decays of the B0s meson, the decay B0s ! ϕϕ, and a measurement of the branching ratio BR(B0s → ϕϕ) using 180 pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B+ ! ϕK+ decay are measured. We obtain BR(B0s ! ϕϕ) = [14+-65(stat) ∓ 6(syst) 10-6, BR(B+ ! ϕK+) = [7:6 ∓ 1:3(stat) ∓ 0:6(syst) 10-6, and ACP(B+ ! ϕK+) = -0:07 ∓ 0:17(stat) +- 0 0:: 03 02 (syst). Both decays are governed in the standard model by second order (penguin) b ! sss → amplitudes.

UR - https://www.scopus.com/pages/publications/27144456112

U2 - 10.1103/PhysRevLett.95.031801

DO - 10.1103/PhysRevLett.95.031801

M3 - Article

AN - SCOPUS:27144456112

SN - 0031-9007

VL - 95

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

M1 - 031801

ER -

Evidence for B⁰_s → ϕϕ decay and measurements of branching ratio and A_CP for B+ ! ΦK+

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