Measurement of the B ̄0s → D-sD+s and B ̄0s → D-D+s effective lifetimes

LHCb Collaboration; R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; L. Anderlini; J. Anderson; R. Andreassen; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; A. Badalov; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; V. Batozskaya; Th Bauer; S. Bifani; P. Griffith; P. Ilten; I. R. Kenyon; C. Lazzeroni; A. Mazurov; J. McCarthy; C. J. Parkinson; L. Pescatore; D. Popov; N. K. Watson

doi:10.1103/PhysRevLett.112.111802

Measurement of the B ̄⁰_s → D^-_sD⁺_s and B ̄⁰_s → D^-D⁺_s effective lifetimes

LHCb Collaboration, R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. Andreassen, M. AndreottiJ. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, Th Bauer, S. Bifani, P. Griffith, P. Ilten, I. R. Kenyon, C. Lazzeroni, A. Mazurov, J. McCarthy, C. J. Parkinson, L. Pescatore, D. Popov, N. K. Watson

Physics and Astronomy

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Abstract

The first measurement of the effective lifetime of the B̄^-0_s meson in the decay B̄^-0_s→D^-_sD⁺_s is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb^-1, collected by the LHCb experiment. The measured value of the B̄^-0_s→D^-_sD⁺_s effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄^-0_s mass eigenstate of ΓL=0.725±0.014±0.009 ps^-1. The B̄^-0_s lifetime is also measured using the flavor-specific B̄^-0_s→D^-D⁺_s decay to be 1.52±0.15±0.01 ps.

Original language	English
Article number	111802
Number of pages	9
Journal	Physical Review Letters
Volume	112
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.112.111802
Publication status	Published - 19 Mar 2014

ASJC Scopus subject areas

General Physics and Astronomy

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https://doi.org/10.1103/PhysRevLett.112.111802Licence: Creative Commons: Attribution (CC BY)

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LHCb Collaboration, Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., ... Watson, N. K. (2014). Measurement of the B ̄⁰_s → D^-_sD⁺_s and B ̄⁰_s → D^-D⁺_s effective lifetimes. Physical Review Letters, 112(11), Article 111802. https://doi.org/10.1103/PhysRevLett.112.111802

@article{2ead7d3e67e6464c8b5b9f72a48e4c8e,

title = "Measurement of the B{\= }0s → D-sD+s and B{\= }0s → D-D+s effective lifetimes",

abstract = "The first measurement of the effective lifetime of the {\=B}-0s meson in the decay {\=B}-0s→D-sD+s is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the {\=B}-0s→D-sD+s effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light {\=B}-0s mass eigenstate of ΓL=0.725±0.014±0.009 ps-1. The {\=B}-0s lifetime is also measured using the flavor-specific {\=B}-0s→D-D+s decay to be 1.52±0.15±0.01 ps.",

author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and Th Bauer and S. Bifani and P. Griffith and P. Ilten and Kenyon, {I. R.} and C. Lazzeroni and A. Mazurov and J. McCarthy and Parkinson, {C. J.} and L. Pescatore and D. Popov and Watson, {N. K.}",

year = "2014",

month = mar,

day = "19",

doi = "10.1103/PhysRevLett.112.111802",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society (APS)",

number = "11",

}

LHCb Collaboration, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Balagura, V, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Bauer, T, Bifani, S, Griffith, P, Ilten, P, Kenyon, IR, Lazzeroni, C, Mazurov, A, McCarthy, J, Parkinson, CJ, Pescatore, L, Popov, D & Watson, NK 2014, 'Measurement of the B ̄⁰_s → D^-_sD⁺_s and B ̄⁰_s → D^-D⁺_s effective lifetimes', Physical Review Letters, vol. 112, no. 11, 111802. https://doi.org/10.1103/PhysRevLett.112.111802

TY - JOUR

T1 - Measurement of the B ̄0s → D-sD+s and B ̄0s → D-D+s effective lifetimes

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Bauer, Th

AU - Bifani, S.

AU - Griffith, P.

AU - Ilten, P.

AU - Kenyon, I. R.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - McCarthy, J.

AU - Parkinson, C. J.

AU - Pescatore, L.

AU - Popov, D.

AU - Watson, N. K.

PY - 2014/3/19

Y1 - 2014/3/19

N2 - The first measurement of the effective lifetime of the B̄-0s meson in the decay B̄-0s→D-sD+s is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the B̄-0s→D-sD+s effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄-0s mass eigenstate of ΓL=0.725±0.014±0.009 ps-1. The B̄-0s lifetime is also measured using the flavor-specific B̄-0s→D-D+s decay to be 1.52±0.15±0.01 ps.

AB - The first measurement of the effective lifetime of the B̄-0s meson in the decay B̄-0s→D-sD+s is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the B̄-0s→D-sD+s effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄-0s mass eigenstate of ΓL=0.725±0.014±0.009 ps-1. The B̄-0s lifetime is also measured using the flavor-specific B̄-0s→D-D+s decay to be 1.52±0.15±0.01 ps.

UR - http://www.scopus.com/inward/record.url?scp=84897885404&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.112.111802

DO - 10.1103/PhysRevLett.112.111802

M3 - Article

AN - SCOPUS:84897885404

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 111802

ER -

Measurement of the B ̄0s → D-sD+s and B ̄0s → D-D+s effective lifetimes

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Measurement of the B ̄⁰_s → D^-_sD⁺_s and B ̄⁰_s → D^-D⁺_s effective lifetimes