Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)

LHCb collaboration; Sheldon L. Stone

doi:10.1016/j.physletb.2012.01.017

Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)

LHCb collaboration
, Sheldon L. Stone^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Measurement of mixing-induced CP violation in (B) over bar (0)(s) decays is of prime importance in probing new physics. So far only the channel (B) over bar (0)(s) -> J/psi phi has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb(-1), in the CP odd eigenstate J/psi f(0)(980), where f(0)(980) -> pi(+)pi(-). A time-dependent fit of the data with the (B) over bar (0)(s) lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from (B) over bar (0)(s) -> J/psi phi yields a value of the CP violating phase of -0.44 +/- 0.44 +/- 0.02 rad, consistent with the Standard Model expectation. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	497-505
Number of pages	9
Journal	Physics Letters B
Volume	707
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2012.01.017
Publication status	Published - 7 Feb 2012
Externally published	Yes

Keywords

LHC
CP violation
Hadronic B decays
(B)over-bar(s)(0) meson

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10.1016/j.physletb.2012.01.017Licence: CC BY-NC-ND

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@article{115092aadbc14e928a2c16bf9701ae4a,

title = "Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)",

abstract = "Measurement of mixing-induced CP violation in (B) over bar (0)(s) decays is of prime importance in probing new physics. So far only the channel (B) over bar (0)(s) -> J/psi phi has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb(-1), in the CP odd eigenstate J/psi f(0)(980), where f(0)(980) -> pi(+)pi(-). A time-dependent fit of the data with the (B) over bar (0)(s) lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from (B) over bar (0)(s) -> J/psi phi yields a value of the CP violating phase of -0.44 +/- 0.44 +/- 0.02 rad, consistent with the Standard Model expectation. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.",

keywords = "LHC, CP violation, Hadronic B decays, (B)over-bar(s)(0) meson",

author = "R. Aaij and C.A. Beteta and B. Adeva and M. Adinolfi and C. Adrover and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and G. Alkhazov and P.A. Cartelle and A.A. Alves and S. Amato and Y. Amhis and J. Anderson and R.B. Appleby and O.A. Gutierrez and F. Archilli and L. Arrabito and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and J.J. Back and D.S. Bailey and V. Balagura and W. Baldini and R.J. Barlow and C. Barschel and S. Barsuk and W. Barter and A. Bates and C. Bauer and T. Bauer and A. Bay and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and M. Benayoun and G. Bencivenni and S. Benson and J. Benton and R. Bernet and M.O. Bettler and \{van Beuzekom\}, M. and \{van den Brand\}, J. and \{LHCb collaboration\} and Stone, \{Sheldon L.\}",

year = "2012",

month = feb,

day = "7",

doi = "10.1016/j.physletb.2012.01.017",

language = "English",

volume = "707",

pages = "497--505",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)

AU - Aaij, R.

AU - Beteta, C.A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adrover, C.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alkhazov, G.

AU - Cartelle, P.A.

AU - Alves, A.A.

AU - Amato, S.

AU - Amhis, Y.

AU - Anderson, J.

AU - Appleby, R.B.

AU - Gutierrez, O.A.

AU - Archilli, F.

AU - Arrabito, L.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J.J.

AU - Bailey, D.S.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R.J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bates, A.

AU - Bauer, C.

AU - Bauer, T.

AU - Bay, A.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Benayoun, M.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Bernet, R.

AU - Bettler, M.O.

AU - van Beuzekom, M.

AU - van den Brand, J.

AU - LHCb collaboration

AU - Stone, Sheldon L.

PY - 2012/2/7

Y1 - 2012/2/7

N2 - Measurement of mixing-induced CP violation in (B) over bar (0)(s) decays is of prime importance in probing new physics. So far only the channel (B) over bar (0)(s) -> J/psi phi has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb(-1), in the CP odd eigenstate J/psi f(0)(980), where f(0)(980) -> pi(+)pi(-). A time-dependent fit of the data with the (B) over bar (0)(s) lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from (B) over bar (0)(s) -> J/psi phi yields a value of the CP violating phase of -0.44 +/- 0.44 +/- 0.02 rad, consistent with the Standard Model expectation. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

AB - Measurement of mixing-induced CP violation in (B) over bar (0)(s) decays is of prime importance in probing new physics. So far only the channel (B) over bar (0)(s) -> J/psi phi has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb(-1), in the CP odd eigenstate J/psi f(0)(980), where f(0)(980) -> pi(+)pi(-). A time-dependent fit of the data with the (B) over bar (0)(s) lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from (B) over bar (0)(s) -> J/psi phi yields a value of the CP violating phase of -0.44 +/- 0.44 +/- 0.02 rad, consistent with the Standard Model expectation. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

KW - LHC

KW - CP violation

KW - Hadronic B decays

KW - (B)over-bar(s)(0) meson

U2 - 10.1016/j.physletb.2012.01.017

DO - 10.1016/j.physletb.2012.01.017

M3 - Article

SN - 0370-2693

VL - 707

SP - 497

EP - 505

JO - Physics Letters B

JF - Physics Letters B

IS - 5

ER -

Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)

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Keywords

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