Measurement of the CP-violation parameter sin(2β) in B0                      d/B-0                      d → J/ψK0                      S decays

CDF Collaboration

doi:10.1103/PhysRevLett.81.5513

Measurement of the CP-violation parameter sin(2β) in B⁰ _d/B^-0 _d → J/ψK⁰ _S decays

CDF Collaboration

Physics

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53 Scopus citations

Abstract

We present a measurement of the time-dependent asymmetry in the rate for B^-0 _d versus B⁰ _d decays to J/ψK⁰ _S. A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2β)2. A total of 198 ± 17 B⁰ _d/B¯⁰ _d decays were observed in 99¯ collisions at √s = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B⁰ _d and B¯⁰ _d are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2β) = 1.8 ± 1.1(stat) ± 0.3(syst).

Original language	English (US)
Pages (from-to)	5513-5518
Number of pages	6
Journal	Physical review letters
Volume	81
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.81.5513
State	Published - 1998

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.81.5513

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@article{1785988c2c2b4bd5974db077b156406f,

title = "Measurement of the CP-violation parameter sin(2β) in B0 d/B-0 d → J/ψK0 S decays",

abstract = "We present a measurement of the time-dependent asymmetry in the rate for B-0 d versus B0 d decays to J/ψK0 S. A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2β)2. A total of 198 ± 17 B0 d/B¯0 d decays were observed in 99¯ collisions at √s = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B0 d and B¯0 d are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2β) = 1.8 ± 1.1(stat) ± 0.3(syst).",

author = "\{CDF Collaboration\} and F. Abe and H. Akimoto and A. Akopian and Albrow, \{M. G.\} and A. Amadon and Amendolia, \{S. R.\} and D. Amidei and J. Antos and S. Aota and G. Apollinari and T. Arisawa and T. Asakawa and W. Ashmanskas and M. Atac and P. Azzi-Bacchetta and N. Bacchetta and S. Bagdasarov and Bailey, \{M. W.\} and \{de Barbaro\}, P. and A. Barbaro-Galtieri and Barnes, \{V. E.\} and Barnett, \{B. A.\} and M. Barone and G. Bauer and T. Baumann and F. Bedeschi and S. Behrends and S. Belforte and G. Bellettini and J. Bellinger and D. Benjamin and J. Bensinger and A. Beretvas and Berge, \{J. P.\} and J. Berryhill and S. Bertolucci and S. Bettelli and B. Bevensee and A. Bhatti and K. Biery and C. Bigongiari and M. Binkley and D. Bisello and Blair, \{R. E.\} and C. Blocker and S. Blusk and A. Bodek and W. Bokhari and G. Bolla and J. Olsen",

year = "1998",

doi = "10.1103/PhysRevLett.81.5513",

language = "English (US)",

volume = "81",

pages = "5513--5518",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "25",

}

TY - JOUR

T1 - Measurement of the CP-violation parameter sin(2β) in B0 d/B-0 d → J/ψK0 S decays

AU - CDF Collaboration

AU - Abe, F.

AU - Akimoto, H.

AU - Akopian, A.

AU - Albrow, M. G.

AU - Amadon, A.

AU - Amendolia, S. R.

AU - Amidei, D.

AU - Antos, J.

AU - Aota, S.

AU - Apollinari, G.

AU - Arisawa, T.

AU - Asakawa, T.

AU - Ashmanskas, W.

AU - Atac, M.

AU - Azzi-Bacchetta, P.

AU - Bacchetta, N.

AU - Bagdasarov, S.

AU - Bailey, M. W.

AU - de Barbaro, P.

AU - Barbaro-Galtieri, A.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barone, M.

AU - Bauer, G.

AU - Baumann, T.

AU - Bedeschi, F.

AU - Behrends, S.

AU - Belforte, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Bensinger, J.

AU - Beretvas, A.

AU - Berge, J. P.

AU - Berryhill, J.

AU - Bertolucci, S.

AU - Bettelli, S.

AU - Bevensee, B.

AU - Bhatti, A.

AU - Biery, K.

AU - Bigongiari, C.

AU - Binkley, M.

AU - Bisello, D.

AU - Blair, R. E.

AU - Blocker, C.

AU - Blusk, S.

AU - Bodek, A.

AU - Bokhari, W.

AU - Bolla, G.

AU - Olsen, J.

PY - 1998

Y1 - 1998

N2 - We present a measurement of the time-dependent asymmetry in the rate for B-0 d versus B0 d decays to J/ψK0 S. A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2β)2. A total of 198 ± 17 B0 d/B¯0 d decays were observed in 99¯ collisions at √s = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B0 d and B¯0 d are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2β) = 1.8 ± 1.1(stat) ± 0.3(syst).

AB - We present a measurement of the time-dependent asymmetry in the rate for B-0 d versus B0 d decays to J/ψK0 S. A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2β)2. A total of 198 ± 17 B0 d/B¯0 d decays were observed in 99¯ collisions at √s = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B0 d and B¯0 d are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2β) = 1.8 ± 1.1(stat) ± 0.3(syst).

UR - https://www.scopus.com/pages/publications/6944256944

UR - https://www.scopus.com/pages/publications/6944256944#tab=citedBy

U2 - 10.1103/PhysRevLett.81.5513

DO - 10.1103/PhysRevLett.81.5513

M3 - Article

AN - SCOPUS:6944256944

SN - 0031-9007

VL - 81

SP - 5513

EP - 5518

JO - Physical review letters

JF - Physical review letters

IS - 25

ER -

Measurement of the CP-violation parameter sin(2β) in B⁰ _d/B^-0 _d → J/ψK⁰ _S decays

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