Study of bs                      0-b̄̄s                      0 oscillations and bs                      0 lifetimes using hadronic decays of bs                      0 mesons

P. Abreu; W. Adam; T. Adye; P. Adzic; I. Ajinenko; Z. Albrecht; T. Alderweireld; G. D. Alekseev; R. Alemany; T. Allmendinger; P. P. Allport; S. Almehed; U. Amaldi; N. Amapane; S. Amato; E. G. Anassontzis; P. Andersson; A. Andreazza; S. Andringa; P. Antilogus; W. D. Apel; Y. Arnoud; B. Åsman; J. E. Augustin; A. Augustinus; P. Baillon; P. Bambade; F. Barao; G. Barbiellini; R. Barbier; D. Y. Bardin; G. Barker; A. Baroncelli; M. Battaglia; M. Baubillier; K. H. Becks; M. Begalli; A. Behrmann; P. Beilliere; Yu Belokopytov; N. C. Benekos; A. C. Benvenuti; C. Berat; M. Berggren; D. Bertini; D. Bertrand; M. Besancon; M. Bigi; M. S. Bilenky; A. Tomaradze; The DELPHI Collaboration

doi:10.1007/s100520000531

Study of b_s ⁰-b̄̄_s ⁰ oscillations and b_s ⁰ lifetimes using hadronic decays of b_s ⁰ mesons

P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G. D. Alekseev, R. Alemany, T. Allmendinger, P. P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E. G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. AntilogusW. D. Apel, Y. Arnoud, B. Åsman, J. E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D. Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K. H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu Belokopytov, N. C. Benekos, A. C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, M. Bigi, M. S. Bilenky, A. Tomaradze, The DELPHI Collaboration

Physics and Astronomy

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Abstract

Oscillations of B^s mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: (Formula Presented),where the D decays are completely reconstructed. In addition,B_s ⁰-B̄̄_s ⁰ oscillations have been studied in events with an exclusivelyreconstructed Ds accompanied in the same hemisphere bya high momentum hadron of opposite charge. Combining the two analyses,a limit on the mass difference between the physical B^s states has been obtained: ∆m_B0s > 4.0 ps⁻¹ at the 95% C.L. with a sensitivityof ∆m_B0s = 3.2 ps⁻¹. Using the latter sample of events,the B^s lifetime has been measured and an upper limit on the decay width difference between the two physical B^s states has been obtained: (Formula Presented) The combination of these results with those obtained using D^sℓ^∓ sample gives: ∆m_B0s > 4.9 ps⁻¹ at the 95% C.L. with a sensitivityof ∆m_B0s = 8.7 ps⁻¹.

Original language	English (US)
Pages (from-to)	229-252
Number of pages	24
Journal	European Physical Journal C
Volume	18
Issue number	2
DOIs	https://doi.org/10.1007/s100520000531
State	Published - Dec 1 2000

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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10.1007/s100520000531

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Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., Alderweireld, T., Alekseev, G. D., Alemany, R., Allmendinger, T., Allport, P. P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E. G., Andersson, P., Andreazza, A., Andringa, S., ... The DELPHI Collaboration (2000). Study of b_s ⁰-b̄̄_s ⁰ oscillations and b_s ⁰ lifetimes using hadronic decays of b_s ⁰ mesons. European Physical Journal C, 18(2), 229-252. https://doi.org/10.1007/s100520000531

@article{129757e974834669bf310ba5043014b7,

title = "Study of bs 0-{\=b}̄s 0 oscillations and bs 0 lifetimes using hadronic decays of bs 0 mesons",

abstract = "Oscillations of Bs mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: (Formula Presented),where the D decays are completely reconstructed. In addition,Bs 0-{\=B}̄s 0 oscillations have been studied in events with an exclusivelyreconstructed Ds accompanied in the same hemisphere bya high momentum hadron of opposite charge. Combining the two analyses,a limit on the mass difference between the physical Bs states has been obtained: ∆mB0s > 4.0 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 3.2 ps−1. Using the latter sample of events,the Bs lifetime has been measured and an upper limit on the decay width difference between the two physical Bs states has been obtained: (Formula Presented) The combination of these results with those obtained using Dsℓ∓ sample gives: ∆mB0s > 4.9 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 8.7 ps−1.",

author = "P. Abreu and W. Adam and T. Adye and P. Adzic and I. Ajinenko and Z. Albrecht and T. Alderweireld and Alekseev, {G. D.} and R. Alemany and T. Allmendinger and Allport, {P. P.} and S. Almehed and U. Amaldi and N. Amapane and S. Amato and Anassontzis, {E. G.} and P. Andersson and A. Andreazza and S. Andringa and P. Antilogus and Apel, {W. D.} and Y. Arnoud and B. {\AA}sman and Augustin, {J. E.} and A. Augustinus and P. Baillon and P. Bambade and F. Barao and G. Barbiellini and R. Barbier and Bardin, {D. Y.} and G. Barker and A. Baroncelli and M. Battaglia and M. Baubillier and Becks, {K. H.} and M. Begalli and A. Behrmann and P. Beilliere and Yu Belokopytov and Benekos, {N. C.} and Benvenuti, {A. C.} and C. Berat and M. Berggren and D. Bertini and D. Bertrand and M. Besancon and M. Bigi and Bilenky, {M. S.} and A. Tomaradze and {The DELPHI Collaboration}",

year = "2000",

month = dec,

day = "1",

doi = "10.1007/s100520000531",

language = "English (US)",

volume = "18",

pages = "229--252",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "2",

}

Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Åsman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Tomaradze, A & The DELPHI Collaboration 2000, 'Study of b_s ⁰-b̄̄_s ⁰ oscillations and b_s ⁰ lifetimes using hadronic decays of b_s ⁰ mesons', European Physical Journal C, vol. 18, no. 2, pp. 229-252. https://doi.org/10.1007/s100520000531

TY - JOUR

T1 - Study of bs 0-b̄̄s 0 oscillations and bs 0 lifetimes using hadronic decays of bs 0 mesons

AU - Abreu, P.

AU - Adam, W.

AU - Adye, T.

AU - Adzic, P.

AU - Ajinenko, I.

AU - Albrecht, Z.

AU - Alderweireld, T.

AU - Alekseev, G. D.

AU - Alemany, R.

AU - Allmendinger, T.

AU - Allport, P. P.

AU - Almehed, S.

AU - Amaldi, U.

AU - Amapane, N.

AU - Amato, S.

AU - Anassontzis, E. G.

AU - Andersson, P.

AU - Andreazza, A.

AU - Andringa, S.

AU - Antilogus, P.

AU - Apel, W. D.

AU - Arnoud, Y.

AU - Åsman, B.

AU - Augustin, J. E.

AU - Augustinus, A.

AU - Baillon, P.

AU - Bambade, P.

AU - Barao, F.

AU - Barbiellini, G.

AU - Barbier, R.

AU - Bardin, D. Y.

AU - Barker, G.

AU - Baroncelli, A.

AU - Battaglia, M.

AU - Baubillier, M.

AU - Becks, K. H.

AU - Begalli, M.

AU - Behrmann, A.

AU - Beilliere, P.

AU - Belokopytov, Yu

AU - Benekos, N. C.

AU - Benvenuti, A. C.

AU - Berat, C.

AU - Berggren, M.

AU - Bertini, D.

AU - Bertrand, D.

AU - Besancon, M.

AU - Bigi, M.

AU - Bilenky, M. S.

AU - Tomaradze, A.

AU - The DELPHI Collaboration

PY - 2000/12/1

Y1 - 2000/12/1

N2 - Oscillations of Bs mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: (Formula Presented),where the D decays are completely reconstructed. In addition,Bs 0-B̄̄s 0 oscillations have been studied in events with an exclusivelyreconstructed Ds accompanied in the same hemisphere bya high momentum hadron of opposite charge. Combining the two analyses,a limit on the mass difference between the physical Bs states has been obtained: ∆mB0s > 4.0 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 3.2 ps−1. Using the latter sample of events,the Bs lifetime has been measured and an upper limit on the decay width difference between the two physical Bs states has been obtained: (Formula Presented) The combination of these results with those obtained using Dsℓ∓ sample gives: ∆mB0s > 4.9 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 8.7 ps−1.

AB - Oscillations of Bs mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: (Formula Presented),where the D decays are completely reconstructed. In addition,Bs 0-B̄̄s 0 oscillations have been studied in events with an exclusivelyreconstructed Ds accompanied in the same hemisphere bya high momentum hadron of opposite charge. Combining the two analyses,a limit on the mass difference between the physical Bs states has been obtained: ∆mB0s > 4.0 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 3.2 ps−1. Using the latter sample of events,the Bs lifetime has been measured and an upper limit on the decay width difference between the two physical Bs states has been obtained: (Formula Presented) The combination of these results with those obtained using Dsℓ∓ sample gives: ∆mB0s > 4.9 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 8.7 ps−1.

UR - http://www.scopus.com/inward/record.url?scp=84996590113&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84996590113&partnerID=8YFLogxK

U2 - 10.1007/s100520000531

DO - 10.1007/s100520000531

M3 - Article

SN - 1434-6044

VL - 18

SP - 229

EP - 252

JO - European Physical Journal C

JF - European Physical Journal C

IS - 2

ER -

Study of b_s ⁰-b̄̄_s ⁰ oscillations and b_s ⁰ lifetimes using hadronic decays of b_s ⁰ mesons

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