Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/9607
Title: A measurement of the average lifetime of b-flavoured baryons
Authors: Akers, R
Allison, J
Baines, JTM
Banks, J
Barlow, RJ
Barnett, S
Beeston, C
Duerdoth, IP
Hughes-Jones, RE
Lafferty, GD
Loebinger, FK
Bella, G
Weber, M
Maur, U
Dittmar, M
Springer, RW
Hattersley, PM
Etzion, E
Hemingway, RJ
Settles, M
Gibson, WR
Kokott, TP
Mikenberg, G
Dixit, MS
Rees, DL
Gingrich, DM
Harrison, PF
Hansroul, M
Hart, J
Schenk, P
Schwick, C
Hauschild, M
Markus, C
Lehto, MH
Routenburg, P
Carter, JR
Azuelos, G
Hawkes, CM
Hagemann, J
Rossi, AM
Heuer, RD
De Jong, S
Shen, BC
Skillman, A
O'Neale, SW
Heflin, E
Lafoux, H
Pinfold, J
Paschievici, P
Carnegie, RK
Sasaki, M
Buijs, A
Robinson, D
Anderson, KJ
Bethke, S
Ros, E
Takeda, H
Yeaman, A
Ball, AH
Runolfsson, O
Charlton, DG
Mättig, P
Scharff-Hansen, P
Schaile, O
Kowalewski, R
Morii, M
Wagner, DL
Batley, JR
Gary, JW
Del Pozo, LA
Redmond, MW
Nguyen, HH
Siroli, GP
Dumas, DJP
Zorn, GT
Estabrooks, PG
Nellen, B
Carter, AA
Scharf, F
Geddes, NI
Rollnik, A
Roney, JM
Pritchard, TW
Vandalen, GJ
Oram, CJ
Bentkowski, P
Schmitt, B
Rison, M
Gorn, W
Runge, K
Wilson, JA
Duckeck, G
Stephens, K
Winterer, V-H
Leblanc, P
Chang, CY
King, J
Wilson, GW
Brown, RM
Panzer-Steindel, B
Schwiening, J
Clarke, PEL
Bloodworth, IJ
Takeshita, T
Igo-Kemenes, P
Miller, DJ
Tesch, N
Mashimo, T
McKenna, J
Jones, RWL
Gascon, J
Honma, AK
Wolf, G
Deng, H
Koetke, DS
Do Couto E Silva, E
Hanson, GG
Cuffiani, M
Transtromer, G
Lou, XC
Marcellini, S
Foucher, M
Watson, AT
Wahl, C
Mir, R
Imrie, DC
Kyberd, P
Ogren, HO
Hobbs, JD
Dallavalle, GM
Dado, S
Strom, D
Yurko, M
Fong, DG
Hinshaw, DA
Kawamoto, T
Bartoldus, R
Mes, H
Pilcher, JE
Wermes, N
Yaari, R
Biebel, O
Meijers, F
Jeffreys, PW
Yekutieli, G
Oakham, FG
Wotton, S
Fabbro, B
Turner, MF
Hochman, D
Kluth, S
Watkins, PM
Tsukamoto, T
Whalley, MA
Wlodek, T
Gibson, V
Martin, AJ
Kobayashi, T
Ihssen, H
Komamiya, S
Hillier, SJ
Jimack, M
Janissen, AC
Homer, RJ
Humbert, R
Mannelli, M
Fabbri, F
Herten, G
Wilkens, B
Jovanovic, P
Lee, AM
Smith, AM
Hargrove, CK
Jui, C
Müller, U
Bright-Thomas, P
Quast, G
Middleton, RP
Kral, JF
Fierro, M
Schaile, AD
McMahon, TJ
Giacomelli, G
Kennedy, BW
Boden, B
Layter, JG
Montanari, A
Cohen, I
Skuja, A
Stegmann, C
Behnke, T
Becker, J
Leroy, C
Patrick, GN
Oreglia, MJ
Rosvick, M
Smith, TJ
Robins, SA
Kawagoe, K
Sobie, R
Sproston, M
Coupland, M
Wells, PS
Steuerer, J
Tecchio, M
Paz-Jaoshvili, N
Towers, S
Schröder, M
Shears, TG
Sbarra, C
Gillies, JD
Scott, WG
Burgard, C
Kellogg, RG
Von Krogh, J
Pitman, D
Grant, FC
Pearce, MJ
Lorazo, B
Menszner, D
Mildenberger, J
Martin, JP
Poffenberger, P
Conboy, JE
Moisan, C
Gentit, FX
Beaudoin, G
Duboscq, JE
Torrente-Lujan, E
Fischer, HM
Lefebvre, E
Breuker, H
Lauber, J
Lahmann, R
Letts, J
Lorah, JM
Rust, DR
Merritt, FS
Mori, T
Sherwood, P
Levinson, L
Ward, CP
Plane, DE
Zeuner, W
Thomson, MA
Geich-Gimbel, C
Gaidot, A
Keeler, RK
OPAL Collaboration
Clayton, JC
McNutt, JR
Gensler, SW
Duchovni, E
Ward, DR
Jeremie, H
Cooper, M
Beck, GA
Grandi, C
Von Der Schmitt, H
Arcelli, S
Stahl, A
Dieckmann, A
Watson, NK
Hobson, PR
Michelini, A
Van Kooten, R
Schappert, W
Goodrick, MJ
Ludwig, J
Luig, A
Jawahery, A
Mohr, W
Chu, SL
Fincke-Keeler, M
Pansart, JP
Pfister, P
Hill, JC
Richards, GE
Rossberg, S
Jones, M
Lloyd, SL
Karlen, D
Weber, P
Evans, HG
Bock, P
Kroll, J
Hilse, T
Burckhart, HJ
Goldberg, J
Wagner, A
Orito, S
Bell, KW
Tresilian, NJ
Giacomelli, R
Alexander, G
Van Den Plas, D
Wyatt, TR
Shepherd-Themistocleous, CH
Astbury, A
Ströhmer, R
Losty, MJ
Lellouch, D
Beck, A
Capiluppi, P
Bosch, HM
Axen, D
Elcombe, PA
Snow, GA
Odorici, F
Boutemeur, M
Tarem, S
Vasseur, G
Poli, B
Teixeira-Dias, P
Przysiezniak, H
Berlich, P
Keywords: OPAL detector;Monte Carlo event samples;Decay length
Issue Date: 1993
Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1993, 316 (2-3), pp. 435 - 447
Abstract: The average lifetime of baryons containing a b quark has been measured with the OPAL detector using data collected between 1990 and 1992. Semileptonically decaying b-flavoured baryons which produce a Λ are identified through the charge correlation of the Λ and lepton. The decay point of the b baryon is estimated by the Λ-lepton vertex, and the observed distribution of decay lengths is fitted to determine the average lifetime. In the data sample consisting of 261 right-sign and 104 wrong-sign Λ-lepton charge combinations, the average b baryon lifetime is found to be τ = 1.05 ± 0.08 ps, where the first error is statistical and the second systematic.
URI: http://bura.brunel.ac.uk/handle/2438/9607
DOI: http://dx.doi.org/10.1016/0370-2693(93)90349-M
ISSN: 0370-2693
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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