Measurement of the B0 and B- meson lifetimes

D. Buskulic; D. Decamp; C. Goy; J. P. Lees; M. N. Minard; B. Mours; B. Pietrzyk; R. Alemany; F. Ariztizabal; P. Comas; J. M. Crespo; M. Delfino; E. Fernandez; M. Fernandez-Bosman; V. Gaitan; Ll Garrido; T. Mattison; A. Pacheco; C. Padilla; 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; Y. Chai; H. Hu; D. Huang; X. Huang; J. Lin; T. Wang; Y. Xie; D. Xu; R. Xu; J. Zhang; L. Zhang; W. Zhao; L. A.T. Bauerdick; E. Blucher; G. Bonvicini; J. Boudreau; D. Casper; H. Drevermann; R. W. Forty; G. Ganis; C. Gay; R. Hagelberg; J. Harvey; S. Haywood; J. Hilgart; R. Jacobsen; B. Jost; J. Knobloch; I. Lehraus; T. Lohse; A. Lusiani; M. Martinez; P. Mato; H. Meinhard; A. Minten; A. Miotto; R. Miquel; H. G. Moser; P. Palazzi; J. A. Perlas; J. F. Pusztaszeri; F. Ranjard; G. Redlinger; L. Rolandi; 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; R. El Fellous; A. Falvard; P. Gay; C. Guicheney

doi:10.1016/0370-2693(93)90211-Y

Measurement of the B⁰ and B^- meson lifetimes

D. Buskulic, D. Decamp, C. Goy, J. P. Lees, M. N. Minard, B. Mours, B. Pietrzyk, R. Alemany, F. Ariztizabal, P. Comas, J. M. Crespo, M. Delfino, E. Fernandez, M. Fernandez-Bosman, V. Gaitan, Ll Garrido, T. Mattison, A. Pacheco, C. Padilla, A. PascualD. 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, Y. Chai, H. Hu, D. Huang, X. Huang, J. Lin, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, L. Zhang, W. Zhao, L. A.T. Bauerdick, E. Blucher, G. Bonvicini, J. Boudreau, D. Casper, H. Drevermann, R. W. Forty, G. Ganis, C. Gay, R. Hagelberg, J. Harvey, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, J. Knobloch, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, H. Meinhard, A. Minten, A. Miotto, R. Miquel, H. G. Moser, P. Palazzi, J. A. Perlas, J. F. Pusztaszeri, F. Ranjard, G. Redlinger, L. Rolandi, 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, R. El Fellous, A. Falvard, P. Gay, C. Guicheney

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Resum

The lifetimes of the B0 and B- mesons have been measured with the ALEPH detector at LEP. Semileptonic decays of B0 and B- mesons were partially reconstructed by identifying events containing a lepton with an associated D*+ or D0 meson. The proper time of the B meson was estimated from the measured decay length and the momentum and mass of the D-lepton system. A fit to the proper time of 77 D*+ℓ- and 77 D0ℓ- candidates, combined with a constraint on the lifetime ratio ( τ- τ0) arising from the relative rates of observed D*+ℓ- and D0ℓ- events, yielded the following lifetimes: τ0=1.52-0.18+0.20(stat.)-0.13 +0.07(syst.) ps, τ- = 1.47-0.19+0.22(stat.)-0.14+0.15 (syst.) ps, τ- τ0 = 0.96-0.15+0.19(stat.)-0.12+0.18 (syst.). © 1993.

Idioma original	Anglès
Pàgines (de-a)	194-208
Revista	Physics Letters B
Volum	307
Número	1-2
DOIs	https://doi.org/10.1016/0370-2693(93)90211-Y
Estat de la publicació	Publicada - 10 de juny 1993

Accés al document

10.1016/0370-2693(93)90211-Y

Com citar-ho

Buskulic, D., Decamp, D., Goy, C., Lees, J. P., Minard, M. N., Mours, B., Pietrzyk, B., Alemany, R., Ariztizabal, F., Comas, P., Crespo, J. M., Delfino, M., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, L., Mattison, T., Pacheco, A., Padilla, C., ... Guicheney, C. (1993). Measurement of the B⁰ and B^- meson lifetimes. Physics Letters B, 307(1-2), 194-208. https://doi.org/10.1016/0370-2693(93)90211-Y

@article{feba02044c2649bc93aa2871bbba37b9,

title = "Measurement of the B0 and B- meson lifetimes",

abstract = "The lifetimes of the B0 and B- mesons have been measured with the ALEPH detector at LEP. Semileptonic decays of B0 and B- mesons were partially reconstructed by identifying events containing a lepton with an associated D*+ or D0 meson. The proper time of the B meson was estimated from the measured decay length and the momentum and mass of the D-lepton system. A fit to the proper time of 77 D*+ℓ- and 77 D0ℓ- candidates, combined with a constraint on the lifetime ratio ( τ- τ0) arising from the relative rates of observed D*+ℓ- and D0ℓ- events, yielded the following lifetimes: τ0=1.52-0.18+0.20(stat.)-0.13 +0.07(syst.) ps, τ- = 1.47-0.19+0.22(stat.)-0.14+0.15 (syst.) ps, τ- τ0 = 0.96-0.15+0.19(stat.)-0.12+0.18 (syst.). {\textcopyright} 1993.",

author = "D. Buskulic and D. Decamp and C. Goy and Lees, {J. P.} and Minard, {M. N.} and B. Mours and B. Pietrzyk and R. Alemany and F. Ariztizabal and P. Comas and Crespo, {J. M.} and M. Delfino and E. Fernandez and M. Fernandez-Bosman and V. Gaitan and Ll Garrido and T. Mattison and A. Pacheco and C. Padilla 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 Y. Chai and H. Hu and D. Huang and X. Huang and J. Lin and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and L. Zhang and W. Zhao and Bauerdick, {L. A.T.} and E. Blucher and G. Bonvicini and J. Boudreau and D. Casper and H. Drevermann and Forty, {R. W.} and G. Ganis and C. Gay and R. Hagelberg and J. Harvey and S. Haywood and J. Hilgart and R. Jacobsen and B. Jost and J. Knobloch and I. Lehraus and T. Lohse and A. Lusiani and M. Martinez and P. Mato and H. Meinhard and A. Minten and A. Miotto 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 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 {El Fellous}, R. and A. Falvard and P. Gay and C. Guicheney",

year = "1993",

month = jun,

day = "10",

doi = "10.1016/0370-2693(93)90211-Y",

language = "English",

volume = "307",

pages = "194--208",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Buskulic, D, Decamp, D, Goy, C, Lees, JP, Minard, MN, Mours, B, Pietrzyk, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, JM , Delfino, M , Fernandez, E, Fernandez-Bosman, M, Gaitan, V, Garrido, L, Mattison, T, Pacheco, A, Padilla, C, 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, Chai, Y, Hu, H, Huang, D, Huang, X, Lin, J, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, L, Zhao, W, Bauerdick, LAT, Blucher, E, Bonvicini, G, Boudreau, J, Casper, D, Drevermann, H, Forty, RW, Ganis, G, Gay, C, Hagelberg, R, Harvey, J, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Knobloch, J, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Meinhard, H, Minten, A, Miotto, A, Miquel, R, Moser, HG, Palazzi, P, Perlas, JA, Pusztaszeri, JF, Ranjard, F, Redlinger, G, Rolandi, L, 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, El Fellous, R, Falvard, A, Gay, P & Guicheney, C 1993, 'Measurement of the B⁰ and B^- meson lifetimes', Physics Letters B, vol. 307, núm. 1-2, pàg. 194-208. https://doi.org/10.1016/0370-2693(93)90211-Y

TY - JOUR

T1 - Measurement of the B0 and B- meson lifetimes

AU - Buskulic, D.

AU - Decamp, D.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Mours, B.

AU - Pietrzyk, B.

AU - Alemany, R.

AU - Ariztizabal, F.

AU - Comas, P.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Mattison, T.

AU - Pacheco, A.

AU - Padilla, C.

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 - Chai, Y.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhang, L.

AU - Zhao, W.

AU - Bauerdick, L. A.T.

AU - Blucher, E.

AU - Bonvicini, G.

AU - Boudreau, J.

AU - Casper, D.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Ganis, G.

AU - Gay, C.

AU - Hagelberg, R.

AU - Harvey, J.

AU - Haywood, S.

AU - Hilgart, J.

AU - Jacobsen, R.

AU - Jost, B.

AU - Knobloch, J.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lusiani, A.

AU - Martinez, M.

AU - Mato, P.

AU - Meinhard, H.

AU - Minten, A.

AU - Miotto, 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 - 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 - El Fellous, R.

AU - Falvard, A.

AU - Gay, P.

AU - Guicheney, C.

PY - 1993/6/10

Y1 - 1993/6/10

N2 - The lifetimes of the B0 and B- mesons have been measured with the ALEPH detector at LEP. Semileptonic decays of B0 and B- mesons were partially reconstructed by identifying events containing a lepton with an associated D*+ or D0 meson. The proper time of the B meson was estimated from the measured decay length and the momentum and mass of the D-lepton system. A fit to the proper time of 77 D*+ℓ- and 77 D0ℓ- candidates, combined with a constraint on the lifetime ratio ( τ- τ0) arising from the relative rates of observed D*+ℓ- and D0ℓ- events, yielded the following lifetimes: τ0=1.52-0.18+0.20(stat.)-0.13 +0.07(syst.) ps, τ- = 1.47-0.19+0.22(stat.)-0.14+0.15 (syst.) ps, τ- τ0 = 0.96-0.15+0.19(stat.)-0.12+0.18 (syst.). © 1993.

AB - The lifetimes of the B0 and B- mesons have been measured with the ALEPH detector at LEP. Semileptonic decays of B0 and B- mesons were partially reconstructed by identifying events containing a lepton with an associated D*+ or D0 meson. The proper time of the B meson was estimated from the measured decay length and the momentum and mass of the D-lepton system. A fit to the proper time of 77 D*+ℓ- and 77 D0ℓ- candidates, combined with a constraint on the lifetime ratio ( τ- τ0) arising from the relative rates of observed D*+ℓ- and D0ℓ- events, yielded the following lifetimes: τ0=1.52-0.18+0.20(stat.)-0.13 +0.07(syst.) ps, τ- = 1.47-0.19+0.22(stat.)-0.14+0.15 (syst.) ps, τ- τ0 = 0.96-0.15+0.19(stat.)-0.12+0.18 (syst.). © 1993.

U2 - 10.1016/0370-2693(93)90211-Y

DO - 10.1016/0370-2693(93)90211-Y

M3 - Article

SN - 0370-2693

VL - 307

SP - 194

EP - 208

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Measurement of the B0 and B- meson lifetimes

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Measurement of the B⁰ and B^- meson lifetimes