Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ

D. Buskulic; D. Decamp; C. Goy; J. P. Lees; M. N. Minard; B. Mours; R. Alemany; F. Ariztizabal; P. Comas; J. M. Crespo; M. Delfino; E. Fernandez; V. Gaitan; Ll Garrido; A. Pacheco; A. Pascual; D. Creanza; M. de Palma; A. Farilla; G. Iaselli; G. Maggi; M. Maggi; S. Natali; S. Nuzzo; M. Quattromini; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; H. Hu; D. Huang; X. Huang; J. Lin; J. Lou; C. Qiao; T. Wang; Y. Xie; D. Xu; R. Xu; J. Zhang; W. Zhao; W. B. Atwood; L. A.T. Bauerdick; E. Blucher; G. Bonvicini; F. Bossi; J. Boudreau; T. H. Burnett; H. Drevermann; R. W. Forty; R. Hagelberg; J. Harvey; S. Haywood; J. Hilgart; R. Jacobsen; B. Jost; J. Knobloch; E. Lançon; I. Lehraus; T. Lohse; A. Lusiani; M. Martinez; P. Mato; T. Mattison; H. Meinhard; S. Menary; T. Meyer; A. Minten; R. Miquel; H. G. Moser; P. Palazzi; J. A. Perlas; J. F. Pusztaszeri; F. Ranjard; G. Redlinger; L. Rolandi; A. Roth; J. Rothberg; T. Ruan; M. Saich; D. Schlatter; M. Schmelling; F. Sefkow; W. Tejessy; H. Wachsmuth; W. Wiedenmann; T. Wildish; W. Witzeling; J. Wotschack; Z. Ajaltouni; F. Badaud; M. Bardadin-Otwinowska; A. M. Bencheikh; R. El Fellous; A. Falvard; P. Gay

doi:10.1016/0370-2693(92)91581-S

Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ

D. Buskulic, D. Decamp, C. Goy, J. P. Lees, M. N. Minard, B. Mours, R. Alemany, F. Ariztizabal, P. Comas, J. M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll Garrido, A. Pacheco, A. Pascual, D. Creanza, M. de Palma, A. Farilla, G. IaselliG. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W. B. Atwood, L. A.T. Bauerdick, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, T. H. Burnett, H. Drevermann, R. W. Forty, R. Hagelberg, J. Harvey, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, J. Knobloch, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, T. Mattison, H. Meinhard, S. Menary, T. Meyer, A. Minten, R. Miquel, H. G. Moser, P. Palazzi, J. A. Perlas, J. F. Pusztaszeri, F. Ranjard, G. Redlinger, L. Rolandi, A. Roth, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, F. Sefkow, W. Tejessy, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, A. M. Bencheikh, R. El Fellous, A. Falvard, P. Gay

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Abstract

From a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ- or e+e-. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19-0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given. © 1992.

Original language	English
Pages (from-to)	396-408
Journal	Physics Letters B
Volume	295
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(92)91581-S
Publication status	Published - 3 Dec 1992

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Buskulic, D., Decamp, D., Goy, C., Lees, J. P., Minard, M. N., Mours, B., Alemany, R., Ariztizabal, F., Comas, P., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, L., Pacheco, A., Pascual, A., Creanza, D., de Palma, M., Farilla, A., ... Gay, P. (1992). Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ. Physics Letters B, 295(3-4), 396-408. https://doi.org/10.1016/0370-2693(92)91581-S

@article{bab457ea453845338fbab4d2c8aa7974,

title = "Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ",

abstract = "From a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ- or e+e-. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19-0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given. {\textcopyright} 1992.",

author = "D. Buskulic and D. Decamp and C. Goy and Lees, {J. P.} and Minard, {M. N.} and B. Mours and R. Alemany and F. Ariztizabal and P. Comas and Crespo, {J. M.} and M. Delfino and E. Fernandez and V. Gaitan and Ll Garrido and A. Pacheco and A. Pascual and D. Creanza and {de Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and M. Maggi and S. Natali and S. Nuzzo and M. Quattromini and A. Ranieri and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and H. Hu and D. Huang and X. Huang and J. Lin and J. Lou and C. Qiao and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and W. Zhao and Atwood, {W. B.} and Bauerdick, {L. A.T.} and E. Blucher and G. Bonvicini and F. Bossi and J. Boudreau and Burnett, {T. H.} and H. Drevermann and Forty, {R. W.} and R. Hagelberg and J. Harvey and S. Haywood and J. Hilgart and R. Jacobsen and B. Jost and J. Knobloch and E. Lan{\c c}on and I. Lehraus and T. Lohse and A. Lusiani and M. Martinez and P. Mato and T. Mattison and H. Meinhard and S. Menary and T. Meyer and A. Minten and R. Miquel and Moser, {H. G.} and P. Palazzi and Perlas, {J. A.} and Pusztaszeri, {J. F.} and F. Ranjard and G. Redlinger and L. Rolandi and A. Roth and J. Rothberg and T. Ruan and M. Saich and D. Schlatter and M. Schmelling and F. Sefkow and W. Tejessy and H. Wachsmuth and W. Wiedenmann and T. Wildish and W. Witzeling and J. Wotschack and Z. Ajaltouni and F. Badaud and M. Bardadin-Otwinowska and Bencheikh, {A. M.} and {El Fellous}, R. and A. Falvard and P. Gay",

year = "1992",

month = dec,

day = "3",

doi = "10.1016/0370-2693(92)91581-S",

language = "English",

volume = "295",

pages = "396--408",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

Buskulic, D, Decamp, D, Goy, C, Lees, JP, Minard, MN, Mours, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, JM , Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Pacheco, A, Pascual, A, Creanza, D, de Palma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, WB, Bauerdick, LAT, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, TH, Drevermann, H, Forty, RW, Hagelberg, R, Harvey, J, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Knobloch, J, Lançon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miquel, R, Moser, HG, Palazzi, P, Perlas, JA, Pusztaszeri, JF, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadin-Otwinowska, M, Bencheikh, AM, El Fellous, R, Falvard, A & Gay, P 1992, 'Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ', Physics Letters B, vol. 295, no. 3-4, pp. 396-408. https://doi.org/10.1016/0370-2693(92)91581-S

TY - JOUR

T1 - Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ

AU - Buskulic, D.

AU - Decamp, D.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Mours, B.

AU - Alemany, R.

AU - Ariztizabal, F.

AU - Comas, P.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Pacheco, A.

AU - Pascual, A.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Natali, S.

AU - Nuzzo, S.

AU - Quattromini, M.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Lou, J.

AU - Qiao, C.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Atwood, W. B.

AU - Bauerdick, L. A.T.

AU - Blucher, E.

AU - Bonvicini, G.

AU - Bossi, F.

AU - Boudreau, J.

AU - Burnett, T. H.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Hagelberg, R.

AU - Harvey, J.

AU - Haywood, S.

AU - Hilgart, J.

AU - Jacobsen, R.

AU - Jost, B.

AU - Knobloch, J.

AU - Lançon, E.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lusiani, A.

AU - Martinez, M.

AU - Mato, P.

AU - Mattison, T.

AU - Meinhard, H.

AU - Menary, S.

AU - Meyer, T.

AU - Minten, A.

AU - Miquel, R.

AU - Moser, H. G.

AU - Palazzi, P.

AU - Perlas, J. A.

AU - Pusztaszeri, J. F.

AU - Ranjard, F.

AU - Redlinger, G.

AU - Rolandi, L.

AU - Roth, A.

AU - Rothberg, J.

AU - Ruan, T.

AU - Saich, M.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Sefkow, F.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wiedenmann, W.

AU - Wildish, T.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Badaud, F.

AU - Bardadin-Otwinowska, M.

AU - Bencheikh, A. M.

AU - El Fellous, R.

AU - Falvard, A.

AU - Gay, P.

PY - 1992/12/3

Y1 - 1992/12/3

N2 - From a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ- or e+e-. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19-0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given. © 1992.

AB - From a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ- or e+e-. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19-0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given. © 1992.

U2 - 10.1016/0370-2693(92)91581-S

DO - 10.1016/0370-2693(92)91581-S

M3 - Article

SN - 0370-2693

VL - 295

SP - 396

EP - 408

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ

Abstract

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