A measurement of the Λb                      0 lifetime

R. Akers; G. Alexander; J. Allison; N. Altekamp; K. Ametewee; K. J. Anderson; S. Anderson; S. Arcelli; S. Asai; D. Axen; G. Azuelos; A. H. Ball; E. Barberio; R. J. Barlow; R. Bartoldus; J. R. Batley; G. Beaudoin; S. Bethke; A. Beck; G. A. Beck; C. Beeston; T. Behnke; K. W. Bell; G. Bella; S. Bentvelsen; P. Berlich; J. Bechtluft; O. Biebel; I. J. Bloodworth; P. Bock; H. M. Bosch; M. Boutemeur; S. Braibant; P. Bright-Thomas; R. M. Brown; A. Buijs; H. J. Burckhart; R. Bürgin; C. Burgard; P. Capiluppi; R. K. Carnegie; A. A. Carter; J. R. Carter; C. Y. Chang; C. Charlesworth; D. G. Charlton; S. L. Chu; P. E.L. Clarke; J. C. Clayton; S. G. Clowes; I. Cohen; J. E. Conboy; O. C. Cooke; M. Cuffiani; S. Dado; C. Dallapiccola; G. M. Dallavalle; C. Darling; S. De Jong; L. A. del Pozo; H. Deng; M. S. Dixit; E. do Couto e Silva; J. E. Duboscq; E. Duchovni; G. Duckeck; I. P. Duerdoth; U. C. Dunwoody; J. E.G. Edwards; P. G. Estabrooks; H. G. Evans; F. Fabbri; B. Fabbro; M. Fanti; P. Fath; F. Fiedler; M. Fierro; M. Fincke-Keeler; H. M. Fischer; R. Folman; D. G. Fong; M. Foucher; H. Fukui; A. Fürtjes; P. Gagnon; A. Gaidot; J. W. Gary; J. Gascon; N. I. Geddes; C. Geich-Gimbel; S. W. Gensler; F. X. Gentit; T. Geralis; G. Giacomelli; P. Giacomelli; R. Giacomelli; V. Gibson; W. R. Gibson; J. D. Gillies; J. Goldberg; D. M. Gingrich; M. J. Goodrick; W. Gorn; C. Grandi; E. Gross; G. G. Hanson; M. Hansroul; M. Hapke; C. K. Hargrove; P. A. Hart; C. Hartmann; M. Hauschild; C. M. Hawkes; R. Hawkings; R. J. Hemingway; G. Herten; R. D. Heuer; J. C. Hill; S. J. Hillier; T. Hilse; P. R. Hobson; D. Hochman; R. J. Homer; A. K. Honma; R. Howard; R. E. Hughes-Jones; D. E. Hutchcroft; P. Igo-Kemenes; D. C. Imrie; A. Jawahery; P. W. Jeffreys; H. Jeremie; M. Jimack; A. Joly; M. Jones; R. W.L. Jones; P. Jovanovic; D. Karlen; J. Kanzaki; K. Kawagoe; T. Kawamoto; R. K. Keeler; R. G. Kellogg; B. W. Kennedy; B. J. King; J. King; J. Kirk; S. Kluth; T. Kobayashi; M. Kobel; D. S. Koetke; T. P. Kokott; S. Komamiya; R. Kowalewski; T. Kress; P. Krieger; J. von Krogh; P. Kyberd; G. D. Lafferty; H. Lafoux; R. Lahmann; W. P. Lai; D. Lanske; J. Lauber; J. G. Layter; A. M. Lee; E. Lefebvre; D. Lellouch; J. Letts; L. Levinson; S. L. Lloyd; F. K. Loebinger; G. D. Long; B. Lorazo; M. J. Losty; X. C. Lou; J. Ludwig; A. Luig; A. Malik; M. Mannelli; S. Marcellini; C. Markus; A. J. Martin; J. P. Martin; T. Mashimo; W. Matthews; P. Mättig; J. McKenna; E. A. Mckigney; T. J. McMahon; A. I. McNab; F. Meijers; S. Menke; F. S. Merritt; H. Mes; A. Michelini; G. Mikenberg; D. J. Miller; R. Mir; W. Mohr; A. Montanari; T. Mori; M. Morii; U. Müller; B. Nellen; B. Nijjhar; S. W. O'Neale; F. G. Oakham; F. Odorici; H. O. Ogren; N. J. Oldershaw; C. J. Oram; M. J. Oreglia; S. Orito; F. Palmonari; J. P. Pansart; G. N. Patrick; M. J. Pearce; P. D. Phillips; J. E. Pilcher; J. Pinfold; D. E. Plane; P. Poffenberger; B. Poli; A. Posthaus; T. W. Pritchard; H. Przysiezniak; M. W. Redmond; D. L. Rees; D. Rigby; M. G. Rison; S. A. Robins; N. Rodning; J. M. Roney; E. Ros; A. M. Rossi; M. Rosvick; P. Routenburg; Y. Rozen; K. Runge; O. Runolfsson; D. R. Rust; M. Sasaki; C. Sbarra; A. D. Schaile; O. Schaile; F. Scharf; P. Scharff-Hansen; P. Schenk; B. Schmitt; M. Schröder; H. C. Schultz-Coulon; P. Schütz; M. Schulz; J. Schwiening; W. G. Scott; M. Settles; T. G. Shears; B. C. Shen; C. H. Shepherd-Themistocleous; P. Sherwood; G. P. Siroli; A. Skillman; A. Skuja; A. M. Smith; T. J. Smith; G. A. Snow; R. Sobie; S. Söldner-Rembold; R. W. Springer; M. Sproston; A. Stahl; M. Starks; C. Stegmann; K. Stephens; J. Steuerer; B. Stockhausen; D. Strom; P. Szymanski; R. Tafirout; P. Taras; S. Tarem; M. Tecchio; P. Teixeira-Dias; N. Tesch; M. A. Thomson; E. von Törne; S. Towers; M. Tscheulin; T. Tsukamoto; A. S. Turcot; M. F. Turner-Watson; P. Utzat; R. Van Kooten; G. Vasseur; P. Vikas; M. Vincter; F. Wäckerle; A. Wagner; D. L. Wagner; C. P. Ward; D. R. Ward; J. J. Ward; P. M. Watkins; A. T. Watson; N. K. Watson; P. Weber; P. S. Wells; N. Wermes; B. Wilkens; G. W. Wilson; J. A. Wilson; T. Wlodek; G. Wolf; S. Wotton; T. R. Wyatt; G. Yekutieli; V. Zacek; W. Zeuner; G. T. Zorn

doi:10.1016/0370-2693(95)00553-W

A measurement of the Λ_b ⁰ lifetime

R. Akers^*, G. Alexander, J. Allison, N. Altekamp, K. Ametewee, K. J. Anderson, S. Anderson, S. Arcelli, S. Asai, D. Axen, G. Azuelos, A. H. Ball, E. Barberio, R. J. Barlow, R. Bartoldus, J. R. Batley, G. Beaudoin, S. Bethke, A. Beck, G. A. BeckC. Beeston, T. Behnke, K. W. Bell, G. Bella, S. Bentvelsen, P. Berlich, J. Bechtluft, O. Biebel, I. J. Bloodworth, P. Bock, H. M. Bosch, M. Boutemeur, S. Braibant, P. Bright-Thomas, R. M. Brown, A. Buijs, H. J. Burckhart, R. Bürgin, C. Burgard, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, C. Charlesworth, D. G. Charlton, S. L. Chu, P. E.L. Clarke, J. C. Clayton, S. G. Clowes, I. Cohen, J. E. Conboy, O. C. Cooke, M. Cuffiani, S. Dado, C. Dallapiccola, G. M. Dallavalle, C. Darling, S. De Jong, L. A. del Pozo, H. Deng, M. S. Dixit, E. do Couto e Silva, J. E. Duboscq, E. Duchovni, G. Duckeck, I. P. Duerdoth, U. C. Dunwoody, J. E.G. Edwards, P. G. Estabrooks, H. G. Evans, F. Fabbri, B. Fabbro, M. Fanti, P. Fath, F. Fiedler, M. Fierro, M. Fincke-Keeler, H. M. Fischer, R. Folman, D. G. Fong, M. Foucher, H. Fukui, A. Fürtjes, P. Gagnon, A. Gaidot, J. W. Gary, J. Gascon, N. I. Geddes, C. Geich-Gimbel, S. W. Gensler, F. X. Gentit, T. Geralis, G. Giacomelli, P. Giacomelli, R. Giacomelli, V. Gibson, W. R. Gibson, J. D. Gillies, J. Goldberg, D. M. Gingrich, M. J. Goodrick, W. Gorn, C. Grandi, E. Gross, G. G. Hanson, M. Hansroul, M. Hapke, C. K. Hargrove, P. A. Hart, C. Hartmann, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, G. Herten, R. D. Heuer, J. C. Hill, S. J. Hillier, T. Hilse, P. R. Hobson, D. Hochman, R. J. Homer, A. K. Honma, R. Howard, R. E. Hughes-Jones, D. E. Hutchcroft, P. Igo-Kemenes, D. C. Imrie, A. Jawahery, P. W. Jeffreys, H. Jeremie, M. Jimack, A. Joly, M. Jones, R. W.L. Jones, P. Jovanovic, D. Karlen, J. Kanzaki, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, B. J. King, J. King, J. Kirk, S. Kluth, T. Kobayashi, M. Kobel, D. S. Koetke, T. P. Kokott, S. Komamiya, R. Kowalewski, T. Kress, P. Krieger, J. von Krogh, P. Kyberd, G. D. Lafferty, H. Lafoux, R. Lahmann, W. P. Lai, D. Lanske, J. Lauber, J. G. Layter, A. M. Lee, E. Lefebvre, D. Lellouch, J. Letts, L. Levinson, S. L. Lloyd, F. K. Loebinger, G. D. Long, B. Lorazo, M. J. Losty, X. C. Lou, J. Ludwig, A. Luig, A. Malik, M. Mannelli, S. Marcellini, C. Markus, A. J. Martin, J. P. Martin, T. Mashimo, W. Matthews, P. Mättig, J. McKenna, E. A. Mckigney, T. J. McMahon, A. I. McNab, F. Meijers, S. Menke, F. S. Merritt, H. Mes, A. Michelini, G. Mikenberg, D. J. Miller, R. Mir, W. Mohr, A. Montanari, T. Mori, M. Morii, U. Müller, B. Nellen, B. Nijjhar, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, N. J. Oldershaw, C. J. Oram, M. J. Oreglia, S. Orito, F. Palmonari, J. P. Pansart, G. N. Patrick, M. J. Pearce, P. D. Phillips, J. E. Pilcher, J. Pinfold, D. E. Plane, P. Poffenberger, B. Poli, A. Posthaus, T. W. Pritchard, H. Przysiezniak, M. W. Redmond, D. L. Rees, D. Rigby, M. G. Rison, S. A. Robins, N. Rodning, J. M. Roney, E. Ros, A. M. Rossi, M. Rosvick, P. Routenburg, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, M. Sasaki, C. Sbarra, A. D. Schaile, O. Schaile, F. Scharf, P. Scharff-Hansen, P. Schenk, B. Schmitt, M. Schröder, H. C. Schultz-Coulon, P. Schütz, M. Schulz, J. Schwiening, W. G. Scott, M. Settles, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Skillman, A. Skuja, A. M. Smith, T. J. Smith, G. A. Snow, R. Sobie, S. Söldner-Rembold, R. W. Springer, M. Sproston, A. Stahl, M. Starks, C. Stegmann, K. Stephens, J. Steuerer, B. Stockhausen, D. Strom, P. Szymanski, R. Tafirout, P. Taras, S. Tarem, M. Tecchio, P. Teixeira-Dias, N. Tesch, M. A. Thomson, E. von Törne, S. Towers, M. Tscheulin, T. Tsukamoto, A. S. Turcot, M. F. Turner-Watson, P. Utzat, R. Van Kooten, G. Vasseur, P. Vikas, M. Vincter, F. Wäckerle, A. Wagner, D. L. Wagner, C. P. Ward, D. R. Ward, J. J. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. Weber, P. S. Wells, N. Wermes, B. Wilkens, G. W. Wilson, J. A. Wilson, T. Wlodek, G. Wolf, S. Wotton, T. R. Wyatt, G. Yekutieli, V. Zacek, W. Zeuner, G. T. Zorn

^*Corresponding author for this work

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

30 Citations (Scopus)

Abstract

The lifetime of the Λ_b ⁰ baryon has been measured using 3.6 million hadronic Z⁰ decays recorded by the OPAL detector at LEP from 1990 to 1994. A sample of Λ_b ⁰ decays is obtained using partially reconstructed semileptonic decays involving Λ_c ⁺ℓ^- combinations, where the Λ_c ⁺ is reconstructed from its decay to a pK^-π⁺ final state. From the 69 ± 13Λ_c ⁺ℓ^- combinations attributed to Λ_b ⁰ decays in this data sample, we measure τ(Λ_b ⁰) = 1.14_-0.19 ^+0.22 ± 0.07 ps, where the errors are statistical and systematic, respectively.

Original language	English
Pages (from-to)	402-412
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	353
Issue number	2-3
DOIs	https://doi.org/10.1016/0370-2693(95)00553-W
Publication status	Published - 1995 Jun 29
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(95)00553-W

Cite this

Akers, R., Alexander, G., Allison, J., Altekamp, N., Ametewee, K., Anderson, K. J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A. H., Barberio, E., Barlow, R. J., Bartoldus, R., Batley, J. R., Beaudoin, G., Bethke, S., Beck, A., ... Zorn, G. T. (1995). A measurement of the Λ_b ⁰ lifetime. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 353(2-3), 402-412. https://doi.org/10.1016/0370-2693(95)00553-W

Akers, R, Alexander, G, Allison, J, Altekamp, N, Ametewee, K, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Ball, AH, Barberio, E, Barlow, RJ, Bartoldus, R, Batley, JR, Beaudoin, G, Bethke, S, Beck, A, Beck, GA, Beeston, C, Behnke, T, Bell, KW, Bella, G, Bentvelsen, S, Berlich, P, Bechtluft, J, Biebel, O, Bloodworth, IJ, Bock, P, Bosch, HM, Boutemeur, M, Braibant, S, Bright-Thomas, P, Brown, RM, Buijs, A, Burckhart, HJ, Bürgin, R, Burgard, C, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlesworth, C, Charlton, DG, Chu, SL, Clarke, PEL, Clayton, JC, Clowes, SG, Cohen, I, Conboy, JE, Cooke, OC, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Darling, C, De Jong, S, del Pozo, LA, Deng, H, Dixit, MS, do Couto e Silva, E, Duboscq, JE, Duchovni, E, Duckeck, G, Duerdoth, IP, Dunwoody, UC, Edwards, JEG, Estabrooks, PG, Evans, HG, Fabbri, F, Fabbro, B, Fanti, M, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, M, Fischer, HM, Folman, R, Fong, DG, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, JW, Gascon, J, Geddes, NI, Geich-Gimbel, C, Gensler, SW, Gentit, FX, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, WR, Gillies, JD, Goldberg, J, Gingrich, DM, Goodrick, MJ, Gorn, W, Grandi, C, Gross, E, Hanson, GG, Hansroul, M, Hapke, M, Hargrove, CK, Hart, PA, Hartmann, C, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herten, G, Heuer, RD, Hill, JC, Hillier, SJ, Hilse, T, Hobson, PR, Hochman, D, Homer, RJ, Honma, AK, Howard, R, Hughes-Jones, RE, Hutchcroft, DE, Igo-Kemenes, P, Imrie, DC, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Joly, A, Jones, M, Jones, RWL, Jovanovic, P, Karlen, D, Kanzaki, J, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, King, BJ, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Kokott, TP, Komamiya, S, Kowalewski, R, Kress, T, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lafoux, H, Lahmann, R, Lai, WP, Lanske, D, Lauber, J, Layter, JG, Lee, AM, Lefebvre, E, Lellouch, D, Letts, J, Levinson, L, Lloyd, SL, Loebinger, FK, Long, GD, Lorazo, B, Losty, MJ, Lou, XC, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, AJ, Martin, JP, Mashimo, T, Matthews, W, Mättig, P, McKenna, J, Mckigney, EA, McMahon, TJ, McNab, AI, Meijers, F, Menke, S, Merritt, FS, Mes, H, Michelini, A, Mikenberg, G, Miller, DJ, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oldershaw, NJ, Oram, CJ, Oreglia, MJ, Orito, S, Palmonari, F, Pansart, JP, Patrick, GN, Pearce, MJ, Phillips, PD, Pilcher, JE, Pinfold, J, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Pritchard, TW, Przysiezniak, H, Redmond, MW, Rees, DL, Rigby, D, Rison, MG, Robins, SA, Rodning, N, Roney, JM, Ros, E, Rossi, AM, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runolfsson, O, Rust, DR, Sasaki, M, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, HC, Schütz, P, Schulz, M, Schwiening, J, Scott, WG, Settles, M, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Skillman, A, Skuja, A, Smith, AM, Smith, TJ, Snow, GA, Sobie, R, Söldner-Rembold, S, Springer, RW, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Szymanski, P, Tafirout, R, Taras, P, Tarem, S, Tecchio, M, Teixeira-Dias, P, Tesch, N, Thomson, MA, von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Turcot, AS, Turner-Watson, MF, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M, Wäckerle, F, Wagner, A, Wagner, DL, Ward, CP, Ward, DR, Ward, JJ, Watkins, PM, Watson, AT, Watson, NK, Weber, P, Wells, PS, Wermes, N, Wilkens, B, Wilson, GW, Wilson, JA, Wlodek, T, Wolf, G, Wotton, S, Wyatt, TR, Yekutieli, G, Zacek, V, Zeuner, W & Zorn, GT 1995, 'A measurement of the Λ_b ⁰ lifetime', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 353, no. 2-3, pp. 402-412. https://doi.org/10.1016/0370-2693(95)00553-W

@article{616d56e8d953450681ef6b505696a0d2,

title = "A measurement of the Λb 0 lifetime",

abstract = "The lifetime of the Λb 0 baryon has been measured using 3.6 million hadronic Z0 decays recorded by the OPAL detector at LEP from 1990 to 1994. A sample of Λb 0 decays is obtained using partially reconstructed semileptonic decays involving Λc +ℓ- combinations, where the Λc + is reconstructed from its decay to a pK-π+ final state. From the 69 ± 13Λc +ℓ- combinations attributed to Λb 0 decays in this data sample, we measure τ(Λb 0) = 1.14-0.19 +0.22 ± 0.07 ps, where the errors are statistical and systematic, respectively.",

author = "R. Akers and G. Alexander and J. Allison and N. Altekamp and K. Ametewee and Anderson, {K. J.} and S. Anderson and S. Arcelli and S. Asai and D. Axen and G. Azuelos and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and G. Beaudoin and S. Bethke and A. Beck and Beck, {G. A.} and C. Beeston and T. Behnke and Bell, {K. W.} and G. Bella and S. Bentvelsen and P. Berlich and J. Bechtluft and O. Biebel and Bloodworth, {I. J.} and P. Bock and Bosch, {H. M.} and M. Boutemeur and S. Braibant and P. Bright-Thomas and Brown, {R. M.} and A. Buijs and Burckhart, {H. J.} and R. B{\"u}rgin and C. Burgard and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and C. Charlesworth and Charlton, {D. G.} and Chu, {S. L.} and Clarke, {P. E.L.} and Clayton, {J. C.} and Clowes, {S. G.} and I. Cohen and Conboy, {J. E.} and Cooke, {O. C.} and M. Cuffiani and S. Dado and C. Dallapiccola and Dallavalle, {G. M.} and C. Darling and {De Jong}, S. and {del Pozo}, {L. A.} and H. Deng and Dixit, {M. S.} and {do Couto e Silva}, E. and Duboscq, {J. E.} and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and Dunwoody, {U. C.} and Edwards, {J. E.G.} and Estabrooks, {P. G.} and Evans, {H. G.} and F. Fabbri and B. Fabbro and M. Fanti and P. Fath and F. Fiedler and M. Fierro and M. Fincke-Keeler and Fischer, {H. M.} and R. Folman and Fong, {D. G.} and M. Foucher and H. Fukui and A. F{\"u}rtjes and P. Gagnon and A. Gaidot and Gary, {J. W.} and J. Gascon and Geddes, {N. I.} and C. Geich-Gimbel and Gensler, {S. W.} and Gentit, {F. X.} and T. Geralis and G. Giacomelli and P. Giacomelli and R. Giacomelli and V. Gibson and Gibson, {W. R.} and Gillies, {J. D.} and J. Goldberg and Gingrich, {D. M.} and Goodrick, {M. J.} and W. Gorn and C. Grandi and E. Gross and Hanson, {G. G.} and M. Hansroul and M. Hapke and Hargrove, {C. K.} and Hart, {P. A.} and C. Hartmann and M. Hauschild and Hawkes, {C. M.} and R. Hawkings and Hemingway, {R. J.} and G. Herten and Heuer, {R. D.} and Hill, {J. C.} and Hillier, {S. J.} and T. Hilse and Hobson, {P. R.} and D. Hochman and Homer, {R. J.} and Honma, {A. K.} and R. Howard and Hughes-Jones, {R. E.} and Hutchcroft, {D. E.} and P. Igo-Kemenes and Imrie, {D. C.} and A. Jawahery and Jeffreys, {P. W.} and H. Jeremie and M. Jimack and A. Joly and M. Jones and Jones, {R. W.L.} and P. Jovanovic and D. Karlen and J. Kanzaki and K. Kawagoe and T. Kawamoto and Keeler, {R. K.} and Kellogg, {R. G.} and Kennedy, {B. W.} and King, {B. J.} and J. King and J. Kirk and S. Kluth and T. Kobayashi and M. Kobel and Koetke, {D. S.} and Kokott, {T. P.} and S. Komamiya and R. Kowalewski and T. Kress and P. Krieger and {von Krogh}, J. and P. Kyberd and Lafferty, {G. D.} and H. Lafoux and R. Lahmann and Lai, {W. P.} and D. Lanske and J. Lauber and Layter, {J. G.} and Lee, {A. M.} and E. Lefebvre and D. Lellouch and J. Letts and L. Levinson and Lloyd, {S. L.} and Loebinger, {F. K.} and Long, {G. D.} and B. Lorazo and Losty, {M. J.} and Lou, {X. C.} and J. Ludwig and A. Luig and A. Malik and M. Mannelli and S. Marcellini and C. Markus and Martin, {A. J.} and Martin, {J. P.} and T. Mashimo and W. Matthews and P. M{\"a}ttig and J. McKenna and Mckigney, {E. A.} and McMahon, {T. J.} and McNab, {A. I.} and F. Meijers and S. Menke and Merritt, {F. S.} and H. Mes and A. Michelini and G. Mikenberg and Miller, {D. J.} and R. Mir and W. Mohr and A. Montanari and T. Mori and M. Morii and U. M{\"u}ller and B. Nellen and B. Nijjhar and O'Neale, {S. W.} and Oakham, {F. G.} and F. Odorici and Ogren, {H. O.} and Oldershaw, {N. J.} and Oram, {C. J.} and Oreglia, {M. J.} and S. Orito and F. Palmonari and Pansart, {J. P.} and Patrick, {G. N.} and Pearce, {M. J.} and Phillips, {P. D.} and Pilcher, {J. E.} and J. Pinfold and Plane, {D. E.} and P. Poffenberger and B. Poli and A. Posthaus and Pritchard, {T. W.} and H. Przysiezniak and Redmond, {M. W.} and Rees, {D. L.} and D. Rigby and Rison, {M. G.} and Robins, {S. A.} and N. Rodning and Roney, {J. M.} and E. Ros and Rossi, {A. M.} and M. Rosvick and P. Routenburg and Y. Rozen and K. Runge and O. Runolfsson and Rust, {D. R.} and M. Sasaki and C. Sbarra and Schaile, {A. D.} and O. Schaile and F. Scharf and P. Scharff-Hansen and P. Schenk and B. Schmitt and M. Schr{\"o}der and Schultz-Coulon, {H. C.} and P. Sch{\"u}tz and M. Schulz and J. Schwiening and Scott, {W. G.} and M. Settles and Shears, {T. G.} and Shen, {B. C.} and Shepherd-Themistocleous, {C. H.} and P. Sherwood and Siroli, {G. P.} and A. Skillman and A. Skuja and Smith, {A. M.} and Smith, {T. J.} and Snow, {G. A.} and R. Sobie and S. S{\"o}ldner-Rembold and Springer, {R. W.} and M. Sproston and A. Stahl and M. Starks and C. Stegmann and K. Stephens and J. Steuerer and B. Stockhausen and D. Strom and P. Szymanski and R. Tafirout and P. Taras and S. Tarem and M. Tecchio and P. Teixeira-Dias and N. Tesch and Thomson, {M. A.} and {von T{\"o}rne}, E. and S. Towers and M. Tscheulin and T. Tsukamoto and Turcot, {A. S.} and Turner-Watson, {M. F.} and P. Utzat and {Van Kooten}, R. and G. Vasseur and P. Vikas and M. Vincter and F. W{\"a}ckerle and A. Wagner and Wagner, {D. L.} and Ward, {C. P.} and Ward, {D. R.} and Ward, {J. J.} and Watkins, {P. M.} and Watson, {A. T.} and Watson, {N. K.} and P. Weber and Wells, {P. S.} and N. Wermes and B. Wilkens and Wilson, {G. W.} and Wilson, {J. A.} and T. Wlodek and G. Wolf and S. Wotton and Wyatt, {T. R.} and G. Yekutieli and V. Zacek and W. Zeuner and Zorn, {G. T.}",

note = "Funding Information: It is a pleasure to thank the SL Division for the efficient operationo f the LEP accelerator,t he precise information on the absolute energy,a nd their continuing close cooperationw ith our experimentalg roup. In addition to the supports taff at our own institutions we are pleasedt o acknowledget he Departmento f Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Fussefeld Foundation, Israel Ministry of Science, Israel Science Foundation, administeredb y the Israel Academy of Science and Humanities, Minerva Gesellschaft, JapaneseM inistry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science ResearchP rogram, German Israeli Bi-national Science Foundation (GIF), Direction des Sciencesd e la Mat&e du Commissariat a 1{\textquoteright}EnergieA tomique, France, Bundesministerium fur Forschung und Technologie, Germany, National ResearchC ouncil of Canada, AI? Sloan Foundation and Junta National de InvestigacaoC ientmca e Tecnolbgica, Portugal.",

year = "1995",

month = jun,

day = "29",

doi = "10.1016/0370-2693(95)00553-W",

language = "English",

volume = "353",

pages = "402--412",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "2-3",

}

TY - JOUR

T1 - A measurement of the Λb 0 lifetime

AU - Akers, R.

AU - Alexander, G.

AU - Allison, J.

AU - Altekamp, N.

AU - Ametewee, K.

AU - Anderson, K. J.

AU - Anderson, S.

AU - Arcelli, S.

AU - Asai, S.

AU - Axen, D.

AU - Azuelos, G.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Bartoldus, R.

AU - Batley, J. R.

AU - Beaudoin, G.

AU - Bethke, S.

AU - Beck, A.

AU - Beck, G. A.

AU - Beeston, C.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bentvelsen, S.

AU - Berlich, P.

AU - Bechtluft, J.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Bock, P.

AU - Bosch, H. M.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brown, R. M.

AU - Buijs, A.

AU - Burckhart, H. J.

AU - Bürgin, R.

AU - Burgard, C.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlesworth, C.

AU - Charlton, D. G.

AU - Chu, S. L.

AU - Clarke, P. E.L.

AU - Clayton, J. C.

AU - Clowes, S. G.

AU - Cohen, I.

AU - Conboy, J. E.

AU - Cooke, O. C.

AU - Cuffiani, M.

AU - Dado, S.

AU - Dallapiccola, C.

AU - Dallavalle, G. M.

AU - Darling, C.

AU - De Jong, S.

AU - del Pozo, L. A.

AU - Deng, H.

AU - Dixit, M. S.

AU - do Couto e Silva, E.

AU - Duboscq, J. E.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Dunwoody, U. C.

AU - Edwards, J. E.G.

AU - Estabrooks, P. G.

AU - Evans, H. G.

AU - Fabbri, F.

AU - Fabbro, B.

AU - Fanti, M.

AU - Fath, P.

AU - Fiedler, F.

AU - Fierro, M.

AU - Fincke-Keeler, M.

AU - Fischer, H. M.

AU - Folman, R.

AU - Fong, D. G.

AU - Foucher, M.

AU - Fukui, H.

AU - Fürtjes, A.

AU - Gagnon, P.

AU - Gaidot, A.

AU - Gary, J. W.

AU - Gascon, J.

AU - Geddes, N. I.

AU - Geich-Gimbel, C.

AU - Gensler, S. W.

AU - Gentit, F. X.

AU - Geralis, T.

AU - Giacomelli, G.

AU - Giacomelli, P.

AU - Giacomelli, R.

AU - Gibson, V.

AU - Gibson, W. R.

AU - Gillies, J. D.

AU - Goldberg, J.

AU - Gingrich, D. M.

AU - Goodrick, M. J.

AU - Gorn, W.

AU - Grandi, C.

AU - Gross, E.

AU - Hanson, G. G.

AU - Hansroul, M.

AU - Hapke, M.

AU - Hargrove, C. K.

AU - Hart, P. A.

AU - Hartmann, C.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Hawkings, R.

AU - Hemingway, R. J.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hill, J. C.

AU - Hillier, S. J.

AU - Hilse, T.

AU - Hobson, P. R.

AU - Hochman, D.

AU - Homer, R. J.

AU - Honma, A. K.

AU - Howard, R.

AU - Hughes-Jones, R. E.

AU - Hutchcroft, D. E.

AU - Igo-Kemenes, P.

AU - Imrie, D. C.

AU - Jawahery, A.

AU - Jeffreys, P. W.

AU - Jeremie, H.

AU - Jimack, M.

AU - Joly, A.

AU - Jones, M.

AU - Jones, R. W.L.

AU - Jovanovic, P.

AU - Karlen, D.

AU - Kanzaki, J.

AU - Kawagoe, K.

AU - Kawamoto, T.

AU - Keeler, R. K.

AU - Kellogg, R. G.

AU - Kennedy, B. W.

AU - King, B. J.

AU - King, J.

AU - Kirk, J.

AU - Kluth, S.

AU - Kobayashi, T.

AU - Kobel, M.

AU - Koetke, D. S.

AU - Kokott, T. P.

AU - Komamiya, S.

AU - Kowalewski, R.

AU - Kress, T.

AU - Krieger, P.

AU - von Krogh, J.

AU - Kyberd, P.

AU - Lafferty, G. D.

AU - Lafoux, H.

AU - Lahmann, R.

AU - Lai, W. P.

AU - Lanske, D.

AU - Lauber, J.

AU - Layter, J. G.

AU - Lee, A. M.

AU - Lefebvre, E.

AU - Lellouch, D.

AU - Letts, J.

AU - Levinson, L.

AU - Lloyd, S. L.

AU - Loebinger, F. K.

AU - Long, G. D.

AU - Lorazo, B.

AU - Losty, M. J.

AU - Lou, X. C.

AU - Ludwig, J.

AU - Luig, A.

AU - Malik, A.

AU - Mannelli, M.

AU - Marcellini, S.

AU - Markus, C.

AU - Martin, A. J.

AU - Martin, J. P.

AU - Mashimo, T.

AU - Matthews, W.

AU - Mättig, P.

AU - McKenna, J.

AU - Mckigney, E. A.

AU - McMahon, T. J.

AU - McNab, A. I.

AU - Meijers, F.

AU - Menke, S.

AU - Merritt, F. S.

AU - Mes, H.

AU - Michelini, A.

AU - Mikenberg, G.

AU - Miller, D. J.

AU - Mir, R.

AU - Mohr, W.

AU - Montanari, A.

AU - Mori, T.

AU - Morii, M.

AU - Müller, U.

AU - Nellen, B.

AU - Nijjhar, B.

AU - O'Neale, S. W.

AU - Oakham, F. G.

AU - Odorici, F.

AU - Ogren, H. O.

AU - Oldershaw, N. J.

AU - Oram, C. J.

AU - Oreglia, M. J.

AU - Orito, S.

AU - Palmonari, F.

AU - Pansart, J. P.

AU - Patrick, G. N.

AU - Pearce, M. J.

AU - Phillips, P. D.

AU - Pilcher, J. E.

AU - Pinfold, J.

AU - Plane, D. E.

AU - Poffenberger, P.

AU - Poli, B.

AU - Posthaus, A.

AU - Pritchard, T. W.

AU - Przysiezniak, H.

AU - Redmond, M. W.

AU - Rees, D. L.

AU - Rigby, D.

AU - Rison, M. G.

AU - Robins, S. A.

AU - Rodning, N.

AU - Roney, J. M.

AU - Ros, E.

AU - Rossi, A. M.

AU - Rosvick, M.

AU - Routenburg, P.

AU - Rozen, Y.

AU - Runge, K.

AU - Runolfsson, O.

AU - Rust, D. R.

AU - Sasaki, M.

AU - Sbarra, C.

AU - Schaile, A. D.

AU - Schaile, O.

AU - Scharf, F.

AU - Scharff-Hansen, P.

AU - Schenk, P.

AU - Schmitt, B.

AU - Schröder, M.

AU - Schultz-Coulon, H. C.

AU - Schütz, P.

AU - Schulz, M.

AU - Schwiening, J.

AU - Scott, W. G.

AU - Settles, M.

AU - Shears, T. G.

AU - Shen, B. C.

AU - Shepherd-Themistocleous, C. H.

AU - Sherwood, P.

AU - Siroli, G. P.

AU - Skillman, A.

AU - Skuja, A.

AU - Smith, A. M.

AU - Smith, T. J.

AU - Snow, G. A.

AU - Sobie, R.

AU - Söldner-Rembold, S.

AU - Springer, R. W.

AU - Sproston, M.

AU - Stahl, A.

AU - Starks, M.

AU - Stegmann, C.

AU - Stephens, K.

AU - Steuerer, J.

AU - Stockhausen, B.

AU - Strom, D.

AU - Szymanski, P.

AU - Tafirout, R.

AU - Taras, P.

AU - Tarem, S.

AU - Tecchio, M.

AU - Teixeira-Dias, P.

AU - Tesch, N.

AU - Thomson, M. A.

AU - von Törne, E.

AU - Towers, S.

AU - Tscheulin, M.

AU - Tsukamoto, T.

AU - Turcot, A. S.

AU - Turner-Watson, M. F.

AU - Utzat, P.

AU - Van Kooten, R.

AU - Vasseur, G.

AU - Vikas, P.

AU - Vincter, M.

AU - Wäckerle, F.

AU - Wagner, A.

AU - Wagner, D. L.

AU - Ward, C. P.

AU - Ward, D. R.

AU - Ward, J. J.

AU - Watkins, P. M.

AU - Watson, A. T.

AU - Watson, N. K.

AU - Weber, P.

AU - Wells, P. S.

AU - Wermes, N.

AU - Wilkens, B.

AU - Wilson, G. W.

AU - Wilson, J. A.

AU - Wlodek, T.

AU - Wolf, G.

AU - Wotton, S.

AU - Wyatt, T. R.

AU - Yekutieli, G.

AU - Zacek, V.

AU - Zeuner, W.

AU - Zorn, G. T.

N1 - Funding Information: It is a pleasure to thank the SL Division for the efficient operationo f the LEP accelerator,t he precise information on the absolute energy,a nd their continuing close cooperationw ith our experimentalg roup. In addition to the supports taff at our own institutions we are pleasedt o acknowledget he Departmento f Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Fussefeld Foundation, Israel Ministry of Science, Israel Science Foundation, administeredb y the Israel Academy of Science and Humanities, Minerva Gesellschaft, JapaneseM inistry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science ResearchP rogram, German Israeli Bi-national Science Foundation (GIF), Direction des Sciencesd e la Mat&e du Commissariat a 1’EnergieA tomique, France, Bundesministerium fur Forschung und Technologie, Germany, National ResearchC ouncil of Canada, AI? Sloan Foundation and Junta National de InvestigacaoC ientmca e Tecnolbgica, Portugal.

PY - 1995/6/29

Y1 - 1995/6/29

N2 - The lifetime of the Λb 0 baryon has been measured using 3.6 million hadronic Z0 decays recorded by the OPAL detector at LEP from 1990 to 1994. A sample of Λb 0 decays is obtained using partially reconstructed semileptonic decays involving Λc +ℓ- combinations, where the Λc + is reconstructed from its decay to a pK-π+ final state. From the 69 ± 13Λc +ℓ- combinations attributed to Λb 0 decays in this data sample, we measure τ(Λb 0) = 1.14-0.19 +0.22 ± 0.07 ps, where the errors are statistical and systematic, respectively.

AB - The lifetime of the Λb 0 baryon has been measured using 3.6 million hadronic Z0 decays recorded by the OPAL detector at LEP from 1990 to 1994. A sample of Λb 0 decays is obtained using partially reconstructed semileptonic decays involving Λc +ℓ- combinations, where the Λc + is reconstructed from its decay to a pK-π+ final state. From the 69 ± 13Λc +ℓ- combinations attributed to Λb 0 decays in this data sample, we measure τ(Λb 0) = 1.14-0.19 +0.22 ± 0.07 ps, where the errors are statistical and systematic, respectively.

UR - http://www.scopus.com/inward/record.url?scp=1542617046&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1542617046&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(95)00553-W

DO - 10.1016/0370-2693(95)00553-W

M3 - Article

AN - SCOPUS:1542617046

SN - 0370-2693

VL - 353

SP - 402

EP - 412

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2-3

ER -

A measurement of the Λ_b ⁰ lifetime

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