Measurement of the average lifetime of B hadrons

W. Braunschweig; R. Gerhards; F. J. Kirschfink; H. U. Martyn; B. Bock; H. M. Fischer; H. Hartmann; J. Hartmann; E. Hilger; A. Jocksch; R. Wedemeyer; B. Foster; A. J. Martin; A. J. Sephton; F. Barreiro; E. Bernardi; J. Chwastowski; A. Eskreys; K. Gather; K. Genser; H. Hultschig; P. Joos; H. Kowalski; A. Ladage; B. Löhr; D. Lüke; P. Mättig; D. Notz; J. M. Pawlak; K. U. Pösnecker; E. Ros; D. Trines; R. Walczak; G. Wolf; H. Kolanoski; T. Kracht; J. Krüger; E. Lohrmann; G. Poelz; W. Zeuner; A. Belk; D. M. Binnie; J. Hassard; J. Shulman; D. Su; A. Leites; J. del Peso; C. Balkwill; M. G. Bowler; P. N. Burrows; R. J. Cashmore; G. P. Heath; P. N. Ratoff; I. M. Silvester; I. R. Tomalin; M. E. Veitch; G. E. Forden; J. C. Hart; D. H. Saxon; S. Brandt; M. Holder; L. Labarga; Y. Eisenberg; U. Karshon; G. Mikenberg; A. Montag; D. Revel; E. Ronat; A. Shapira; N. Wainer; G. Yekutieli; A. Caldwell; D. Muller; S. Ritz; D. Strom; M. Takashima; Sau Lan Wu; G. Zobernig

doi:10.1007/BF01548581

Measurement of the average lifetime of B hadrons

W. Braunschweig^*, R. Gerhards, F. J. Kirschfink, H. U. Martyn, B. Bock, H. M. Fischer, H. Hartmann, J. Hartmann, E. Hilger, A. Jocksch, R. Wedemeyer, B. Foster, A. J. Martin, A. J. Sephton, F. Barreiro, E. Bernardi, J. Chwastowski, A. Eskreys, K. Gather, K. GenserH. Hultschig, P. Joos, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mättig, D. Notz, J. M. Pawlak, K. U. Pösnecker, E. Ros, D. Trines, R. Walczak, G. Wolf, H. Kolanoski, T. Kracht, J. Krüger, E. Lohrmann, G. Poelz, W. Zeuner, A. Belk, D. M. Binnie, J. Hassard, J. Shulman, D. Su, A. Leites, J. del Peso, C. Balkwill, M. G. Bowler, P. N. Burrows, R. J. Cashmore, G. P. Heath, P. N. Ratoff, I. M. Silvester, I. R. Tomalin, M. E. Veitch, G. E. Forden, J. C. Hart, D. H. Saxon, S. Brandt, M. Holder, L. Labarga, Y. Eisenberg, U. Karshon, G. Mikenberg, A. Montag, D. Revel, E. Ronat, A. Shapira, N. Wainer, G. Yekutieli, A. Caldwell, D. Muller, S. Ritz, D. Strom, M. Takashima, Sau Lan Wu, G. Zobernig

^*Corresponding author for this work

Department of Particle Physics and Astrophysics

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

17 Citations (Scopus)

Abstract

The average lifetime of B hadrons has been measured by the TASSO collaboration using 110 pb^-1 of data collected in 1986 at a center of mass energy of 35 GeV. Measurements by three different methods are presented and a method of B-enrichment is discussed. The result of the impact parameter method is τB=1.36±0.13±0.28 ps, that of the vertex method is τB=1.30±0.10±0.28 ps and that of the dipole method is τB=1.47±0.14±0.30 ps. These are combined to give the result τB=1.35±0.10±0.24 ps.

Original language	English
Pages (from-to)	1-13
Number of pages	13
Journal	European Physical Journal C
Volume	44
Issue number	1
DOIs	https://doi.org/10.1007/BF01548581
Publication status	Published - Mar 1989

Funding

We would like to thank the PETRA machine group and the DESY computer center for their support especially in obtaining and processing the large data sample in 1986. Those of us from outside DESY wish to thank the DESY directorate for their hospitality.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1007/BF01548581

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Braunschweig, W., Gerhards, R., Kirschfink, F. J., Martyn, H. U., Bock, B., Fischer, H. M., Hartmann, H., Hartmann, J., Hilger, E., Jocksch, A., Wedemeyer, R., Foster, B., Martin, A. J., Sephton, A. J., Barreiro, F., Bernardi, E., Chwastowski, J., Eskreys, A., Gather, K., ... Zobernig, G. (1989). Measurement of the average lifetime of B hadrons. European Physical Journal C, 44(1), 1-13. https://doi.org/10.1007/BF01548581

@article{cf62d37ebee44a838598b80940b178c1,

title = "Measurement of the average lifetime of B hadrons",

abstract = "The average lifetime of B hadrons has been measured by the TASSO collaboration using 110 pb-1 of data collected in 1986 at a center of mass energy of 35 GeV. Measurements by three different methods are presented and a method of B-enrichment is discussed. The result of the impact parameter method is τB=1.36±0.13±0.28 ps, that of the vertex method is τB=1.30±0.10±0.28 ps and that of the dipole method is τB=1.47±0.14±0.30 ps. These are combined to give the result τB=1.35±0.10±0.24 ps.",

author = "W. Braunschweig and R. Gerhards and Kirschfink, {F. J.} and Martyn, {H. U.} and B. Bock and Fischer, {H. M.} and H. Hartmann and J. Hartmann and E. Hilger and A. Jocksch and R. Wedemeyer and B. Foster and Martin, {A. J.} and Sephton, {A. J.} and F. Barreiro and E. Bernardi and J. Chwastowski and A. Eskreys and K. Gather and K. Genser and H. Hultschig and P. Joos and H. Kowalski and A. Ladage and B. L{\"o}hr and D. L{\"u}ke and P. M{\"a}ttig and D. Notz and Pawlak, {J. M.} and P{\"o}snecker, {K. U.} and E. Ros and D. Trines and R. Walczak and G. Wolf and H. Kolanoski and T. Kracht and J. Kr{\"u}ger and E. Lohrmann and G. Poelz and W. Zeuner and A. Belk and Binnie, {D. M.} and J. Hassard and J. Shulman and D. Su and A. Leites and {del Peso}, J. and C. Balkwill and Bowler, {M. G.} and Burrows, {P. N.} and Cashmore, {R. J.} and Heath, {G. P.} and Ratoff, {P. N.} and Silvester, {I. M.} and Tomalin, {I. R.} and Veitch, {M. E.} and Forden, {G. E.} and Hart, {J. C.} and Saxon, {D. H.} and S. Brandt and M. Holder and L. Labarga and Y. Eisenberg and U. Karshon and G. Mikenberg and A. Montag and D. Revel and E. Ronat and A. Shapira and N. Wainer and G. Yekutieli and A. Caldwell and D. Muller and S. Ritz and D. Strom and M. Takashima and Wu, {Sau Lan} and G. Zobernig",

year = "1989",

month = mar,

doi = "10.1007/BF01548581",

language = "English",

volume = "44",

pages = "1--13",

journal = "European Physical Journal C",

issn = "0170-9739",

publisher = "Springer Nature",

number = "1",

}

Braunschweig, W, Gerhards, R, Kirschfink, FJ, Martyn, HU, Bock, B, Fischer, HM, Hartmann, H, Hartmann, J, Hilger, E, Jocksch, A, Wedemeyer, R, Foster, B, Martin, AJ, Sephton, AJ, Barreiro, F, Bernardi, E, Chwastowski, J, Eskreys, A, Gather, K, Genser, K, Hultschig, H, Joos, P, Kowalski, H, Ladage, A, Löhr, B, Lüke, D, Mättig, P, Notz, D, Pawlak, JM, Pösnecker, KU, Ros, E, Trines, D, Walczak, R, Wolf, G, Kolanoski, H, Kracht, T, Krüger, J, Lohrmann, E, Poelz, G, Zeuner, W, Belk, A, Binnie, DM, Hassard, J, Shulman, J, Su, D, Leites, A, del Peso, J, Balkwill, C, Bowler, MG, Burrows, PN, Cashmore, RJ, Heath, GP, Ratoff, PN, Silvester, IM, Tomalin, IR, Veitch, ME, Forden, GE, Hart, JC, Saxon, DH, Brandt, S, Holder, M, Labarga, L, Eisenberg, Y, Karshon, U , Mikenberg, G, Montag, A, Revel, D, Ronat, E, Shapira, A, Wainer, N, Yekutieli, G, Caldwell, A, Muller, D, Ritz, S, Strom, D, Takashima, M, Wu, SL & Zobernig, G 1989, 'Measurement of the average lifetime of B hadrons', European Physical Journal C, vol. 44, no. 1, pp. 1-13. https://doi.org/10.1007/BF01548581

TY - JOUR

T1 - Measurement of the average lifetime of B hadrons

AU - Braunschweig, W.

AU - Gerhards, R.

AU - Kirschfink, F. J.

AU - Martyn, H. U.

AU - Bock, B.

AU - Fischer, H. M.

AU - Hartmann, H.

AU - Hartmann, J.

AU - Hilger, E.

AU - Jocksch, A.

AU - Wedemeyer, R.

AU - Foster, B.

AU - Martin, A. J.

AU - Sephton, A. J.

AU - Barreiro, F.

AU - Bernardi, E.

AU - Chwastowski, J.

AU - Eskreys, A.

AU - Gather, K.

AU - Genser, K.

AU - Hultschig, H.

AU - Joos, P.

AU - Kowalski, H.

AU - Ladage, A.

AU - Löhr, B.

AU - Lüke, D.

AU - Mättig, P.

AU - Notz, D.

AU - Pawlak, J. M.

AU - Pösnecker, K. U.

AU - Ros, E.

AU - Trines, D.

AU - Walczak, R.

AU - Wolf, G.

AU - Kolanoski, H.

AU - Kracht, T.

AU - Krüger, J.

AU - Lohrmann, E.

AU - Poelz, G.

AU - Zeuner, W.

AU - Belk, A.

AU - Binnie, D. M.

AU - Hassard, J.

AU - Shulman, J.

AU - Su, D.

AU - Leites, A.

AU - del Peso, J.

AU - Balkwill, C.

AU - Bowler, M. G.

AU - Burrows, P. N.

AU - Cashmore, R. J.

AU - Heath, G. P.

AU - Ratoff, P. N.

AU - Silvester, I. M.

AU - Tomalin, I. R.

AU - Veitch, M. E.

AU - Forden, G. E.

AU - Hart, J. C.

AU - Saxon, D. H.

AU - Brandt, S.

AU - Holder, M.

AU - Labarga, L.

AU - Eisenberg, Y.

AU - Karshon, U.

AU - Mikenberg, G.

AU - Montag, A.

AU - Revel, D.

AU - Ronat, E.

AU - Shapira, A.

AU - Wainer, N.

AU - Yekutieli, G.

AU - Caldwell, A.

AU - Muller, D.

AU - Ritz, S.

AU - Strom, D.

AU - Takashima, M.

AU - Wu, Sau Lan

AU - Zobernig, G.

PY - 1989/3

Y1 - 1989/3

N2 - The average lifetime of B hadrons has been measured by the TASSO collaboration using 110 pb-1 of data collected in 1986 at a center of mass energy of 35 GeV. Measurements by three different methods are presented and a method of B-enrichment is discussed. The result of the impact parameter method is τB=1.36±0.13±0.28 ps, that of the vertex method is τB=1.30±0.10±0.28 ps and that of the dipole method is τB=1.47±0.14±0.30 ps. These are combined to give the result τB=1.35±0.10±0.24 ps.

AB - The average lifetime of B hadrons has been measured by the TASSO collaboration using 110 pb-1 of data collected in 1986 at a center of mass energy of 35 GeV. Measurements by three different methods are presented and a method of B-enrichment is discussed. The result of the impact parameter method is τB=1.36±0.13±0.28 ps, that of the vertex method is τB=1.30±0.10±0.28 ps and that of the dipole method is τB=1.47±0.14±0.30 ps. These are combined to give the result τB=1.35±0.10±0.24 ps.

UR - http://www.scopus.com/inward/record.url?scp=0009106577&partnerID=8YFLogxK

U2 - 10.1007/BF01548581

DO - 10.1007/BF01548581

M3 - Article

AN - SCOPUS:0009106577

SN - 0170-9739

VL - 44

SP - 1

EP - 13

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

ER -

Measurement of the average lifetime of B hadrons

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