Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors

R. G. Jacobsen; D. S. Koetke; C. E. Adolphsen; D. Fujino; B. A. Schumm; S. R. Wagner; J. P. Alexander; D. Averill; B. C. Barish; T. Barklow; B. A. Barnett; D. Blockus; A. Boyarski; B. Brabson; A. Breakstone; F. Bulos; P. R. Burchat; D. L. Burke; R. J. Cence; J. Chapman; M. Chmeissani; D. Cords; D. P. Coupal; P. Dauncey; H. C. Destaebler; J. M. Dorfan; P. S. Drell; D. C. Drewer; D. Durrett; R. Elia; G. J. Feldman; R. C. Field; W. T. Ford; C. Fordham; R. Frey; K. K. Gan; E. Gero; G. Gidal; T. Glanzman; G. Goldhaber; J. J. Gomez Cadenas; G. Gratta; G. Hanson; R. Harr; B. Harral; F. A. Harris; K. Hayes; C. Hearty; C. A. Heusch; M. D. Hildreth; T. Himel; D. A. Hinshaw; S. J. Hong; D. Hutchinson; J. Hylen; W. R. Innes; J. A. Jaros; C. K. Jung; J. A. Kadyk; C. Kenney; M. King; S. Komamiya; L. A. Kowalski; J. F. Kral; M. Kuhlen; L. Labarga; A. J. Lankford; F. Le Diberder; M. E. Levi; A. M. Litke; X. C. Lou; V. L̈th; J. A. McKenna; J. A.J. Matthews; T. Mattison; K. C. Moffeit; C. T. Munger; W. N. Murray; J. Nash; H. Ogren; K. F. Oeshaughnessy; S. I. Parker; C. Peck; M. L. Perl; M. Petradza; R. Pitthan; F. C. Porter; P. Rankin; D. R. Rust; H. F.W. Sadrozinski; A. S. Schwarz; A. Seiden; J. G. Smith; A. Snyder; E. Soderstrom; D. P. Stoker; R. Stroynowski; M. Swartz; R. Thun; G. H. Trilling; M. Turala; R. Van Kooten; P. Weber; A. J. Weinstein; E. Wicklund; M. Woods; M. Yurko; C. Zaccardelli

doi:10.1103/PhysRevLett.67.3347

Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors

R. G. Jacobsen^*, D. S. Koetke, C. E. Adolphsen, D. Fujino, B. A. Schumm, S. R. Wagner, J. P. Alexander, D. Averill, B. C. Barish, T. Barklow, B. A. Barnett, D. Blockus, A. Boyarski, B. Brabson, A. Breakstone, F. Bulos, P. R. Burchat, D. L. Burke, R. J. Cence, J. ChapmanM. Chmeissani, D. Cords, D. P. Coupal, P. Dauncey, H. C. Destaebler, J. M. Dorfan, P. S. Drell, D. C. Drewer, D. Durrett, R. Elia, G. J. Feldman, R. C. Field, W. T. Ford, C. Fordham, R. Frey, K. K. Gan, E. Gero, G. Gidal, T. Glanzman, G. Goldhaber, J. J. Gomez Cadenas, G. Gratta, G. Hanson, R. Harr, B. Harral, F. A. Harris, K. Hayes, C. Hearty, C. A. Heusch, M. D. Hildreth, T. Himel, D. A. Hinshaw, S. J. Hong, D. Hutchinson, J. Hylen, W. R. Innes, J. A. Jaros, C. K. Jung, J. A. Kadyk, C. Kenney, M. King, S. Komamiya, L. A. Kowalski, J. F. Kral, M. Kuhlen, L. Labarga, A. J. Lankford, F. Le Diberder, M. E. Levi, A. M. Litke, X. C. Lou, V. L̈th, J. A. McKenna, J. A.J. Matthews, T. Mattison, K. C. Moffeit, C. T. Munger, W. N. Murray, J. Nash, H. Ogren, K. F. Oeshaughnessy, S. I. Parker, C. Peck, M. L. Perl, M. Petradza, R. Pitthan, F. C. Porter, P. Rankin, D. R. Rust, H. F.W. Sadrozinski, A. S. Schwarz, A. Seiden, J. G. Smith, A. Snyder, E. Soderstrom, D. P. Stoker, R. Stroynowski, M. Swartz, R. Thun, G. H. Trilling, M. Turala, R. Van Kooten, P. Weber, A. J. Weinstein, E. Wicklund, M. Woods, M. Yurko, C. Zaccardelli

^*Corresponding author for this work

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

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Abstract

We have measured the fraction of bb» events in hadronic Z0 decays, Rbb», using the vertex detector system of the Mark II detector at the SLAC Linear Collider. We tag bb» events by requiring the coincidence of three or more tracks with significant impact parameters. This tag is 50% efficient and results in a sample of 85% purity. We find Rbb»=0.251+0.049+0.030, in good agreement with other measurements and the standard model prediction.

Original language	English
Pages (from-to)	3347-3350
Number of pages	4
Journal	Physical Review Letters
Volume	67
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.67.3347
Publication status	Published - 1991
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.67.3347

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Jacobsen, R. G., Koetke, D. S., Adolphsen, C. E., Fujino, D., Schumm, B. A., Wagner, S. R., Alexander, J. P., Averill, D., Barish, B. C., Barklow, T., Barnett, B. A., Blockus, D., Boyarski, A., Brabson, B., Breakstone, A., Bulos, F., Burchat, P. R., Burke, D. L., Cence, R. J., ... Zaccardelli, C. (1991). Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors. Physical Review Letters, 67(24), 3347-3350. https://doi.org/10.1103/PhysRevLett.67.3347

Jacobsen, RG, Koetke, DS, Adolphsen, CE, Fujino, D, Schumm, BA, Wagner, SR, Alexander, JP, Averill, D, Barish, BC, Barklow, T, Barnett, BA, Blockus, D, Boyarski, A, Brabson, B, Breakstone, A, Bulos, F, Burchat, PR, Burke, DL, Cence, RJ, Chapman, J, Chmeissani, M, Cords, D, Coupal, DP, Dauncey, P, Destaebler, HC, Dorfan, JM, Drell, PS, Drewer, DC, Durrett, D, Elia, R, Feldman, GJ, Field, RC, Ford, WT, Fordham, C, Frey, R, Gan, KK, Gero, E, Gidal, G, Glanzman, T, Goldhaber, G, Gomez Cadenas, JJ, Gratta, G, Hanson, G, Harr, R, Harral, B, Harris, FA, Hayes, K, Hearty, C, Heusch, CA, Hildreth, MD, Himel, T, Hinshaw, DA, Hong, SJ, Hutchinson, D, Hylen, J, Innes, WR, Jaros, JA, Jung, CK, Kadyk, JA, Kenney, C, King, M, Komamiya, S, Kowalski, LA, Kral, JF, Kuhlen, M, Labarga, L, Lankford, AJ, Le Diberder, F, Levi, ME, Litke, AM, Lou, XC, L̈th, V, McKenna, JA, Matthews, JAJ, Mattison, T, Moffeit, KC, Munger, CT, Murray, WN, Nash, J, Ogren, H, Oeshaughnessy, KF, Parker, SI, Peck, C, Perl, ML, Petradza, M, Pitthan, R, Porter, FC, Rankin, P, Rust, DR, Sadrozinski, HFW, Schwarz, AS, Seiden, A, Smith, JG, Snyder, A, Soderstrom, E, Stoker, DP, Stroynowski, R, Swartz, M, Thun, R, Trilling, GH, Turala, M, Van Kooten, R, Weber, P, Weinstein, AJ, Wicklund, E, Woods, M, Yurko, M & Zaccardelli, C 1991, 'Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors', Physical Review Letters, vol. 67, no. 24, pp. 3347-3350. https://doi.org/10.1103/PhysRevLett.67.3347

@article{6ee85cc0fa154184950a3e290247e5e2,

title = "Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors",

abstract = "We have measured the fraction of bb» events in hadronic Z0 decays, Rbb», using the vertex detector system of the Mark II detector at the SLAC Linear Collider. We tag bb» events by requiring the coincidence of three or more tracks with significant impact parameters. This tag is 50% efficient and results in a sample of 85% purity. We find Rbb»=0.251+0.049+0.030, in good agreement with other measurements and the standard model prediction.",

author = "Jacobsen, {R. G.} and Koetke, {D. S.} and Adolphsen, {C. E.} and D. Fujino and Schumm, {B. A.} and Wagner, {S. R.} and Alexander, {J. P.} and D. Averill and Barish, {B. C.} and T. Barklow and Barnett, {B. A.} and D. Blockus and A. Boyarski and B. Brabson and A. Breakstone and F. Bulos and Burchat, {P. R.} and Burke, {D. L.} and Cence, {R. J.} and J. Chapman and M. Chmeissani and D. Cords and Coupal, {D. P.} and P. Dauncey and Destaebler, {H. C.} and Dorfan, {J. M.} and Drell, {P. S.} and Drewer, {D. C.} and D. Durrett and R. Elia and Feldman, {G. J.} and Field, {R. C.} and Ford, {W. T.} and C. Fordham and R. Frey and Gan, {K. K.} and E. Gero and G. Gidal and T. Glanzman and G. Goldhaber and {Gomez Cadenas}, {J. J.} and G. Gratta and G. Hanson and R. Harr and B. Harral and Harris, {F. A.} and K. Hayes and C. Hearty and Heusch, {C. A.} and Hildreth, {M. D.} and T. Himel and Hinshaw, {D. A.} and Hong, {S. J.} and D. Hutchinson and J. Hylen and Innes, {W. R.} and Jaros, {J. A.} and Jung, {C. K.} and Kadyk, {J. A.} and C. Kenney and M. King and S. Komamiya and Kowalski, {L. A.} and Kral, {J. F.} and M. Kuhlen and L. Labarga and Lankford, {A. J.} and {Le Diberder}, F. and Levi, {M. E.} and Litke, {A. M.} and Lou, {X. C.} and V. {\"L}th and McKenna, {J. A.} and Matthews, {J. A.J.} and T. Mattison and Moffeit, {K. C.} and Munger, {C. T.} and Murray, {W. N.} and J. Nash and H. Ogren and Oeshaughnessy, {K. F.} and Parker, {S. I.} and C. Peck and Perl, {M. L.} and M. Petradza and R. Pitthan and Porter, {F. C.} and P. Rankin and Rust, {D. R.} and Sadrozinski, {H. F.W.} and Schwarz, {A. S.} and A. Seiden and Smith, {J. G.} and A. Snyder and E. Soderstrom and Stoker, {D. P.} and R. Stroynowski and M. Swartz and R. Thun and Trilling, {G. H.} and M. Turala and {Van Kooten}, R. and P. Weber and Weinstein, {A. J.} and E. Wicklund and M. Woods and M. Yurko and C. Zaccardelli",

year = "1991",

doi = "10.1103/PhysRevLett.67.3347",

language = "English",

volume = "67",

pages = "3347--3350",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "24",

}

TY - JOUR

T1 - Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors

AU - Jacobsen, R. G.

AU - Koetke, D. S.

AU - Adolphsen, C. E.

AU - Fujino, D.

AU - Schumm, B. A.

AU - Wagner, S. R.

AU - Alexander, J. P.

AU - Averill, D.

AU - Barish, B. C.

AU - Barklow, T.

AU - Barnett, B. A.

AU - Blockus, D.

AU - Boyarski, A.

AU - Brabson, B.

AU - Breakstone, A.

AU - Bulos, F.

AU - Burchat, P. R.

AU - Burke, D. L.

AU - Cence, R. J.

AU - Chapman, J.

AU - Chmeissani, M.

AU - Cords, D.

AU - Coupal, D. P.

AU - Dauncey, P.

AU - Destaebler, H. C.

AU - Dorfan, J. M.

AU - Drell, P. S.

AU - Drewer, D. C.

AU - Durrett, D.

AU - Elia, R.

AU - Feldman, G. J.

AU - Field, R. C.

AU - Ford, W. T.

AU - Fordham, C.

AU - Frey, R.

AU - Gan, K. K.

AU - Gero, E.

AU - Gidal, G.

AU - Glanzman, T.

AU - Goldhaber, G.

AU - Gomez Cadenas, J. J.

AU - Gratta, G.

AU - Hanson, G.

AU - Harr, R.

AU - Harral, B.

AU - Harris, F. A.

AU - Hayes, K.

AU - Hearty, C.

AU - Heusch, C. A.

AU - Hildreth, M. D.

AU - Himel, T.

AU - Hinshaw, D. A.

AU - Hong, S. J.

AU - Hutchinson, D.

AU - Hylen, J.

AU - Innes, W. R.

AU - Jaros, J. A.

AU - Jung, C. K.

AU - Kadyk, J. A.

AU - Kenney, C.

AU - King, M.

AU - Komamiya, S.

AU - Kowalski, L. A.

AU - Kral, J. F.

AU - Kuhlen, M.

AU - Labarga, L.

AU - Lankford, A. J.

AU - Le Diberder, F.

AU - Levi, M. E.

AU - Litke, A. M.

AU - Lou, X. C.

AU - L̈th, V.

AU - McKenna, J. A.

AU - Matthews, J. A.J.

AU - Mattison, T.

AU - Moffeit, K. C.

AU - Munger, C. T.

AU - Murray, W. N.

AU - Nash, J.

AU - Ogren, H.

AU - Oeshaughnessy, K. F.

AU - Parker, S. I.

AU - Peck, C.

AU - Perl, M. L.

AU - Petradza, M.

AU - Pitthan, R.

AU - Porter, F. C.

AU - Rankin, P.

AU - Rust, D. R.

AU - Sadrozinski, H. F.W.

AU - Schwarz, A. S.

AU - Seiden, A.

AU - Smith, J. G.

AU - Snyder, A.

AU - Soderstrom, E.

AU - Stoker, D. P.

AU - Stroynowski, R.

AU - Swartz, M.

AU - Thun, R.

AU - Trilling, G. H.

AU - Turala, M.

AU - Van Kooten, R.

AU - Weber, P.

AU - Weinstein, A. J.

AU - Wicklund, E.

AU - Woods, M.

AU - Yurko, M.

AU - Zaccardelli, C.

PY - 1991

Y1 - 1991

N2 - We have measured the fraction of bb» events in hadronic Z0 decays, Rbb», using the vertex detector system of the Mark II detector at the SLAC Linear Collider. We tag bb» events by requiring the coincidence of three or more tracks with significant impact parameters. This tag is 50% efficient and results in a sample of 85% purity. We find Rbb»=0.251+0.049+0.030, in good agreement with other measurements and the standard model prediction.

AB - We have measured the fraction of bb» events in hadronic Z0 decays, Rbb», using the vertex detector system of the Mark II detector at the SLAC Linear Collider. We tag bb» events by requiring the coincidence of three or more tracks with significant impact parameters. This tag is 50% efficient and results in a sample of 85% purity. We find Rbb»=0.251+0.049+0.030, in good agreement with other measurements and the standard model prediction.

UR - http://www.scopus.com/inward/record.url?scp=0009263703&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0009263703&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.67.3347

DO - 10.1103/PhysRevLett.67.3347

M3 - Article

AN - SCOPUS:0009263703

SN - 0031-9007

VL - 67

SP - 3347

EP - 3350

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

ER -

Measurement of the bb» fraction in hadronic Z0 decays with precision vertex detectors

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