Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique

K. Abe; I. Abt; C. J. Ahn; T. Akagi; W. W. Ash; D. Aston; N. Bacchetta; K. G. Baird; C. Baltay; H. R. Band; M. B. Barakat; G. Baranko; O. Bardon; T. Barklow; A. O. Bazarko; R. Ben-David; A. C. Benvenuti; T. Bienz; G. M. Bilei; D. Bisello; G. Blaylock; J. R. Bogart; T. Bolton; G. R. Bower; J. E. Brau; M. Breidenbach; W. M. Bugg; D. Burke; T. H. Burnett; P. N. Burrows; W. Busza; A. Calcaterra; D. O. Caldwell; D. Calloway; B. Camanzi; M. Carpinelli; R. Cassell; R. Castaldi; A. Castro; M. Cavalli-Sforza; E. Church; H. O. Cohn; J. A. Coller; V. Cook; R. Cotton; R. F. Cowan; D. G. Coyne; A. D'Oliveira; C. J.S. Damerell; S. Dasu; R. De Sangro; P. De Simone; R. Dell'Orso; M. Dima; P. Y.C. Du; R. Dubois; B. I. Eisenstein; R. Elia; D. Falciai; C. Fan; M. J. Fero; R. Frey; K. Furuno; T. Gillman; G. Gladding; S. Gonzalez; G. D. Hallewell; E. L. Hart; Y. Hasegawa; S. Hedges; S. S. Hertzbach; M. D. Hildreth; J. Huber; M. E. Huffer; E. W. Hughes; H. Hwang; Y. Iwasaki; P. Jacques; J. Jaros; A. S. Johnson; J. R. Johnson; R. A. Johnson; T. Junk; R. Kajikawa; M. Kalelkar; I. Karliner; H. Kawahara; H. W. Kendall; Y. Kim; M. E. King; R. King; R. R. Kofler; N. M. Krishna; R. S. Kroeger; J. F. Labs; M. Langston; A. Lath; J. A. Lauber; D. W.G. Leith; X. Liu; M. Loreti; A. Lu; H. L. Lynch; J. Ma; G. Mancinelli; S. Manly; G. Mantovani; T. W. Markiewicz; T. Maruyama; R. Massetti; H. Masuda; E. Mazzucato; A. K. McKemey; B. T. Meadows; R. Messner; P. M. Mockett; K. C. Moffeit; B. Mours; G. Müller; D. Muller; T. Nagamine; U. Nauenberg; H. Neal; M. Nussbaum; Y. Ohnishi; L. S. Osborne; R. S. Panvini; H. Park; T. J. Pavel; I. Peruzzi; L. Pescara; M. Piccolo; L. Piemontese; E. Pieroni; K. T. Pitts; R. J. Plano; R. Prepost; C. Y. Prescott; G. D. Punkar; J. Quigley; B. N. Ratcliff; T. W. Reeves; P. E. Rensing; L. S. Rochester; J. E. Rothberg; P. C. Rowson; J. J. Russell; O. H. Saxton; T. Schalk; R. H. Schindler; U. Schneekloth; B. A. Schumm; A. Seiden; S. Sen; V. V. Serbo; M. H. Shaevitz; J. T. Shank; G. Shapiro; S. L. Shapiro; D. J. Sherden; C. Simopoulos; N. B. Sinev; S. R. Smith; J. A. Snyder; P. Stamer; H. Steiner; R. Steiner; M. G. Strauss; D. Su; F. Suekane; A. Sugiyama; S. Suzuki; M. Swartz; A. Szumilo; T. Takahashi; F. E. Taylor; E. Torrence; J. D. Turk; T. Usher; J. Va'vra; C. Vannini; E. Vella; J. P. Venuti; P. G. Verdini; S. R. Wagner; A. P. Waite; S. J. Watts; A. W. Weidemann; J. S. Whitaker; S. L. White; F. J. Wickens; D. A. Williams; D. C. Williams; S. H. Williams; S. Willocq; R. J. Wilson; W. J. Wisniewski; M. Woods; G. B. Word; J. Wyss; R. K. Yamamoto; J. M. Yamartino; X. Yang; S. J. Yellin; C. C. Young; H. Yuta; G. Zapalac; R. W. Zdarko; C. Zeitlin; J. Zhou

doi:10.1103/PhysRevLett.74.2890

Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique

K. Abe, I. Abt, C. J. Ahn, T. Akagi, W. W. Ash, D. Aston, N. Bacchetta, K. G. Baird, C. Baltay, H. R. Band, M. B. Barakat, G. Baranko, O. Bardon, T. Barklow, A. O. Bazarko, R. Ben-David, A. C. Benvenuti, T. Bienz, G. M. Bilei, D. BiselloG. Blaylock, J. R. Bogart, T. Bolton, G. R. Bower, J. E. Brau, M. Breidenbach, W. M. Bugg, D. Burke, T. H. Burnett, P. N. Burrows, W. Busza, A. Calcaterra, D. O. Caldwell, D. Calloway, B. Camanzi, M. Carpinelli, R. Cassell, R. Castaldi, A. Castro, M. Cavalli-Sforza, E. Church, H. O. Cohn, J. A. Coller, V. Cook, R. Cotton, R. F. Cowan, D. G. Coyne, A. D'Oliveira, C. J.S. Damerell, S. Dasu, R. De Sangro, P. De Simone, R. Dell'Orso, M. Dima, P. Y.C. Du, R. Dubois, B. I. Eisenstein, R. Elia, D. Falciai, C. Fan, M. J. Fero, R. Frey, K. Furuno, T. Gillman, G. Gladding, S. Gonzalez, G. D. Hallewell, E. L. Hart, Y. Hasegawa, S. Hedges, S. S. Hertzbach, M. D. Hildreth, J. Huber, M. E. Huffer, E. W. Hughes, H. Hwang, Y. Iwasaki, P. Jacques, J. Jaros, A. S. Johnson, J. R. Johnson, R. A. Johnson, T. Junk, R. Kajikawa, M. Kalelkar, I. Karliner, H. Kawahara, H. W. Kendall, Y. Kim, M. E. King, R. King, R. R. Kofler, N. M. Krishna, R. S. Kroeger, J. F. Labs, M. Langston, A. Lath, J. A. Lauber, D. W.G. Leith, X. Liu, M. Loreti, A. Lu, H. L. Lynch, J. Ma, G. Mancinelli, S. Manly, G. Mantovani, T. W. Markiewicz, T. Maruyama, R. Massetti, H. Masuda, E. Mazzucato, A. K. McKemey, B. T. Meadows, R. Messner, P. M. Mockett, K. C. Moffeit, B. Mours, G. Müller, D. Muller, T. Nagamine, U. Nauenberg, H. Neal, M. Nussbaum, Y. Ohnishi, L. S. Osborne, R. S. Panvini, H. Park, T. J. Pavel, I. Peruzzi, L. Pescara, M. Piccolo, L. Piemontese, E. Pieroni, K. T. Pitts, R. J. Plano, R. Prepost, C. Y. Prescott, G. D. Punkar, J. Quigley, B. N. Ratcliff, T. W. Reeves, P. E. Rensing, L. S. Rochester, J. E. Rothberg, P. C. Rowson, J. J. Russell, O. H. Saxton, T. Schalk, R. H. Schindler, U. Schneekloth, B. A. Schumm, A. Seiden, S. Sen, V. V. Serbo, M. H. Shaevitz, J. T. Shank, G. Shapiro, S. L. Shapiro, D. J. Sherden, C. Simopoulos, N. B. Sinev, S. R. Smith, J. A. Snyder, P. Stamer, H. Steiner, R. Steiner, M. G. Strauss, D. Su, F. Suekane, A. Sugiyama, S. Suzuki, M. Swartz, A. Szumilo, T. Takahashi, F. E. Taylor, E. Torrence, J. D. Turk, T. Usher, J. Va'vra, C. Vannini, E. Vella, J. P. Venuti, P. G. Verdini, S. R. Wagner, A. P. Waite, S. J. Watts, A. W. Weidemann, J. S. Whitaker, S. L. White, F. J. Wickens, D. A. Williams, D. C. Williams, S. H. Williams, S. Willocq, R. J. Wilson, W. J. Wisniewski, M. Woods, G. B. Word, J. Wyss, R. K. Yamamoto, J. M. Yamartino, X. Yang, S. J. Yellin, C. C. Young, H. Yuta, G. Zapalac, R. W. Zdarko, C. Zeitlin, J. Zhou

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

Abstract

Using an impact parameter tag to select an enriched sample of Z0→bb̄ events, and the net momentum-weighted track charge to identify the sign of the charge of the underlying b quark, we have measured the left-right forward-backward asymmetry for b quark production as a function of polar angle. Based on 1.8 pb-1 of Z0 decay data produced with a mean electron beam polarization of Pe=63%, this yields a direct measurement of the extent of parity violation in the Zbb coupling of Ab=0.87±0.11(stat)±0. 09(syst).

Original language	English (US)
Pages (from-to)	2890-2894
Number of pages	5
Journal	Physical review letters
Volume	74
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.74.2890
State	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.74.2890

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Abe, K., Abt, I., Ahn, C. J., Akagi, T., Ash, W. W., Aston, D., Bacchetta, N., Baird, K. G., Baltay, C., Band, H. R., Barakat, M. B., Baranko, G., Bardon, O., Barklow, T., Bazarko, A. O., Ben-David, R., Benvenuti, A. C., Bienz, T., Bilei, G. M., ... Zhou, J. (1995). Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique. Physical review letters, 74(15), 2890-2894. https://doi.org/10.1103/PhysRevLett.74.2890

Abe, K, Abt, I, Ahn, CJ, Akagi, T, Ash, WW, Aston, D, Bacchetta, N, Baird, KG, Baltay, C, Band, HR, Barakat, MB, Baranko, G, Bardon, O, Barklow, T, Bazarko, AO, Ben-David, R, Benvenuti, AC, Bienz, T, Bilei, GM, Bisello, D, Blaylock, G, Bogart, JR, Bolton, T, Bower, GR, Brau, JE, Breidenbach, M, Bugg, WM, Burke, D, Burnett, TH, Burrows, PN, Busza, W, Calcaterra, A, Caldwell, DO, Calloway, D, Camanzi, B, Carpinelli, M, Cassell, R, Castaldi, R, Castro, A, Cavalli-Sforza, M, Church, E, Cohn, HO, Coller, JA, Cook, V, Cotton, R, Cowan, RF, Coyne, DG, D'Oliveira, A, Damerell, CJS, Dasu, S, De Sangro, R, De Simone, P, Dell'Orso, R, Dima, M, Du, PYC, Dubois, R, Eisenstein, BI, Elia, R, Falciai, D, Fan, C, Fero, MJ, Frey, R, Furuno, K, Gillman, T, Gladding, G, Gonzalez, S, Hallewell, GD, Hart, EL, Hasegawa, Y, Hedges, S, Hertzbach, SS, Hildreth, MD, Huber, J, Huffer, ME, Hughes, EW, Hwang, H, Iwasaki, Y, Jacques, P, Jaros, J, Johnson, AS, Johnson, JR, Johnson, RA, Junk, T, Kajikawa, R, Kalelkar, M, Karliner, I, Kawahara, H, Kendall, HW, Kim, Y, King, ME, King, R, Kofler, RR, Krishna, NM, Kroeger, RS, Labs, JF, Langston, M, Lath, A, Lauber, JA, Leith, DWG, Liu, X, Loreti, M, Lu, A, Lynch, HL, Ma, J, Mancinelli, G, Manly, S, Mantovani, G, Markiewicz, TW, Maruyama, T, Massetti, R, Masuda, H, Mazzucato, E, McKemey, AK, Meadows, BT, Messner, R, Mockett, PM, Moffeit, KC, Mours, B, Müller, G, Muller, D, Nagamine, T, Nauenberg, U, Neal, H, Nussbaum, M, Ohnishi, Y, Osborne, LS, Panvini, RS, Park, H, Pavel, TJ, Peruzzi, I, Pescara, L, Piccolo, M, Piemontese, L, Pieroni, E, Pitts, KT, Plano, RJ, Prepost, R, Prescott, CY, Punkar, GD, Quigley, J, Ratcliff, BN, Reeves, TW, Rensing, PE, Rochester, LS, Rothberg, JE, Rowson, PC, Russell, JJ, Saxton, OH, Schalk, T, Schindler, RH, Schneekloth, U, Schumm, BA, Seiden, A, Sen, S, Serbo, VV, Shaevitz, MH, Shank, JT, Shapiro, G, Shapiro, SL, Sherden, DJ, Simopoulos, C, Sinev, NB, Smith, SR, Snyder, JA, Stamer, P, Steiner, H, Steiner, R, Strauss, MG, Su, D, Suekane, F, Sugiyama, A, Suzuki, S, Swartz, M, Szumilo, A, Takahashi, T, Taylor, FE, Torrence, E, Turk, JD, Usher, T, Va'vra, J, Vannini, C, Vella, E, Venuti, JP, Verdini, PG, Wagner, SR, Waite, AP, Watts, SJ, Weidemann, AW, Whitaker, JS, White, SL, Wickens, FJ, Williams, DA, Williams, DC, Williams, SH, Willocq, S, Wilson, RJ, Wisniewski, WJ, Woods, M, Word, GB, Wyss, J, Yamamoto, RK, Yamartino, JM, Yang, X, Yellin, SJ, Young, CC, Yuta, H, Zapalac, G, Zdarko, RW, Zeitlin, C & Zhou, J 1995, 'Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique', Physical review letters, vol. 74, no. 15, pp. 2890-2894. https://doi.org/10.1103/PhysRevLett.74.2890

@article{0686662cbd4f42be8252f73ea2ef24e3,

title = "Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique",

abstract = "Using an impact parameter tag to select an enriched sample of Z0→b{\=b} events, and the net momentum-weighted track charge to identify the sign of the charge of the underlying b quark, we have measured the left-right forward-backward asymmetry for b quark production as a function of polar angle. Based on 1.8 pb-1 of Z0 decay data produced with a mean electron beam polarization of Pe=63%, this yields a direct measurement of the extent of parity violation in the Zbb coupling of Ab=0.87±0.11(stat)±0. 09(syst).",

author = "K. Abe and I. Abt and Ahn, {C. J.} and T. Akagi and Ash, {W. W.} and D. Aston and N. Bacchetta and Baird, {K. G.} and C. Baltay and Band, {H. R.} and Barakat, {M. B.} and G. Baranko and O. Bardon and T. Barklow and Bazarko, {A. O.} and R. Ben-David and Benvenuti, {A. C.} and T. Bienz and Bilei, {G. M.} and D. Bisello and G. Blaylock and Bogart, {J. R.} and T. Bolton and Bower, {G. R.} and Brau, {J. E.} and M. Breidenbach and Bugg, {W. M.} and D. Burke and Burnett, {T. H.} and Burrows, {P. N.} and W. Busza and A. Calcaterra and Caldwell, {D. O.} and D. Calloway and B. Camanzi and M. Carpinelli and R. Cassell and R. Castaldi and A. Castro and M. Cavalli-Sforza and E. Church and Cohn, {H. O.} and Coller, {J. A.} and V. Cook and R. Cotton and Cowan, {R. F.} and Coyne, {D. G.} and A. D'Oliveira and Damerell, {C. J.S.} and S. Dasu and {De Sangro}, R. and {De Simone}, P. and R. Dell'Orso and M. Dima and Du, {P. Y.C.} and R. Dubois and Eisenstein, {B. I.} and R. Elia and D. Falciai and C. Fan and Fero, {M. J.} and R. Frey and K. Furuno and T. Gillman and G. Gladding and S. Gonzalez and Hallewell, {G. D.} and Hart, {E. L.} and Y. Hasegawa and S. Hedges and Hertzbach, {S. S.} and Hildreth, {M. D.} and J. Huber and Huffer, {M. E.} and Hughes, {E. W.} and H. Hwang and Y. Iwasaki and P. Jacques and J. Jaros and Johnson, {A. S.} and Johnson, {J. R.} and Johnson, {R. A.} and T. Junk and R. Kajikawa and M. Kalelkar and I. Karliner and H. Kawahara and Kendall, {H. W.} and Y. Kim and King, {M. E.} and R. King and Kofler, {R. R.} and Krishna, {N. M.} and Kroeger, {R. S.} and Labs, {J. F.} and M. Langston and A. Lath and Lauber, {J. A.} and Leith, {D. W.G.} and X. Liu and M. Loreti and A. Lu and Lynch, {H. L.} and J. Ma and G. Mancinelli and S. Manly and G. Mantovani and Markiewicz, {T. W.} and T. Maruyama and R. Massetti and H. Masuda and E. Mazzucato and McKemey, {A. K.} and Meadows, {B. T.} and R. Messner and Mockett, {P. M.} and Moffeit, {K. C.} and B. Mours and G. M{\"u}ller and D. Muller and T. Nagamine and U. Nauenberg and H. Neal and M. Nussbaum and Y. Ohnishi and Osborne, {L. S.} and Panvini, {R. S.} and H. Park and Pavel, {T. J.} and I. Peruzzi and L. Pescara and M. Piccolo and L. Piemontese and E. Pieroni and Pitts, {K. T.} and Plano, {R. J.} and R. Prepost and Prescott, {C. Y.} and Punkar, {G. D.} and J. Quigley and Ratcliff, {B. N.} and Reeves, {T. W.} and Rensing, {P. E.} and Rochester, {L. S.} and Rothberg, {J. E.} and Rowson, {P. C.} and Russell, {J. J.} and Saxton, {O. H.} and T. Schalk and Schindler, {R. H.} and U. Schneekloth and Schumm, {B. A.} and A. Seiden and S. Sen and Serbo, {V. V.} and Shaevitz, {M. H.} and Shank, {J. T.} and G. Shapiro and Shapiro, {S. L.} and Sherden, {D. J.} and C. Simopoulos and Sinev, {N. B.} and Smith, {S. R.} and Snyder, {J. A.} and P. Stamer and H. Steiner and R. Steiner and Strauss, {M. G.} and D. Su and F. Suekane and A. Sugiyama and S. Suzuki and M. Swartz and A. Szumilo and T. Takahashi and Taylor, {F. E.} and E. Torrence and Turk, {J. D.} and T. Usher and J. Va'vra and C. Vannini and E. Vella and Venuti, {J. P.} and Verdini, {P. G.} and Wagner, {S. R.} and Waite, {A. P.} and Watts, {S. J.} and Weidemann, {A. W.} and Whitaker, {J. S.} and White, {S. L.} and Wickens, {F. J.} and Williams, {D. A.} and Williams, {D. C.} and Williams, {S. H.} and S. Willocq and Wilson, {R. J.} and Wisniewski, {W. J.} and M. Woods and Word, {G. B.} and J. Wyss and Yamamoto, {R. K.} and Yamartino, {J. M.} and X. Yang and Yellin, {S. J.} and Young, {C. C.} and H. Yuta and G. Zapalac and Zdarko, {R. W.} and C. Zeitlin and J. Zhou",

year = "1995",

doi = "10.1103/PhysRevLett.74.2890",

language = "English (US)",

volume = "74",

pages = "2890--2894",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

TY - JOUR

T1 - Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique

AU - Abe, K.

AU - Abt, I.

AU - Ahn, C. J.

AU - Akagi, T.

AU - Ash, W. W.

AU - Aston, D.

AU - Bacchetta, N.

AU - Baird, K. G.

AU - Baltay, C.

AU - Band, H. R.

AU - Barakat, M. B.

AU - Baranko, G.

AU - Bardon, O.

AU - Barklow, T.

AU - Bazarko, A. O.

AU - Ben-David, R.

AU - Benvenuti, A. C.

AU - Bienz, T.

AU - Bilei, G. M.

AU - Bisello, D.

AU - Blaylock, G.

AU - Bogart, J. R.

AU - Bolton, T.

AU - Bower, G. R.

AU - Brau, J. E.

AU - Breidenbach, M.

AU - Bugg, W. M.

AU - Burke, D.

AU - Burnett, T. H.

AU - Burrows, P. N.

AU - Busza, W.

AU - Calcaterra, A.

AU - Caldwell, D. O.

AU - Calloway, D.

AU - Camanzi, B.

AU - Carpinelli, M.

AU - Cassell, R.

AU - Castaldi, R.

AU - Castro, A.

AU - Cavalli-Sforza, M.

AU - Church, E.

AU - Cohn, H. O.

AU - Coller, J. A.

AU - Cook, V.

AU - Cotton, R.

AU - Cowan, R. F.

AU - Coyne, D. G.

AU - D'Oliveira, A.

AU - Damerell, C. J.S.

AU - Dasu, S.

AU - De Sangro, R.

AU - De Simone, P.

AU - Dell'Orso, R.

AU - Dima, M.

AU - Du, P. Y.C.

AU - Dubois, R.

AU - Eisenstein, B. I.

AU - Elia, R.

AU - Falciai, D.

AU - Fan, C.

AU - Fero, M. J.

AU - Frey, R.

AU - Furuno, K.

AU - Gillman, T.

AU - Gladding, G.

AU - Gonzalez, S.

AU - Hallewell, G. D.

AU - Hart, E. L.

AU - Hasegawa, Y.

AU - Hedges, S.

AU - Hertzbach, S. S.

AU - Hildreth, M. D.

AU - Huber, J.

AU - Huffer, M. E.

AU - Hughes, E. W.

AU - Hwang, H.

AU - Iwasaki, Y.

AU - Jacques, P.

AU - Jaros, J.

AU - Johnson, A. S.

AU - Johnson, J. R.

AU - Johnson, R. A.

AU - Junk, T.

AU - Kajikawa, R.

AU - Kalelkar, M.

AU - Karliner, I.

AU - Kawahara, H.

AU - Kendall, H. W.

AU - Kim, Y.

AU - King, M. E.

AU - King, R.

AU - Kofler, R. R.

AU - Krishna, N. M.

AU - Kroeger, R. S.

AU - Labs, J. F.

AU - Langston, M.

AU - Lath, A.

AU - Lauber, J. A.

AU - Leith, D. W.G.

AU - Liu, X.

AU - Loreti, M.

AU - Lu, A.

AU - Lynch, H. L.

AU - Ma, J.

AU - Mancinelli, G.

AU - Manly, S.

AU - Mantovani, G.

AU - Markiewicz, T. W.

AU - Maruyama, T.

AU - Massetti, R.

AU - Masuda, H.

AU - Mazzucato, E.

AU - McKemey, A. K.

AU - Meadows, B. T.

AU - Messner, R.

AU - Mockett, P. M.

AU - Moffeit, K. C.

AU - Mours, B.

AU - Müller, G.

AU - Muller, D.

AU - Nagamine, T.

AU - Nauenberg, U.

AU - Neal, H.

AU - Nussbaum, M.

AU - Ohnishi, Y.

AU - Osborne, L. S.

AU - Panvini, R. S.

AU - Park, H.

AU - Pavel, T. J.

AU - Peruzzi, I.

AU - Pescara, L.

AU - Piccolo, M.

AU - Piemontese, L.

AU - Pieroni, E.

AU - Pitts, K. T.

AU - Plano, R. J.

AU - Prepost, R.

AU - Prescott, C. Y.

AU - Punkar, G. D.

AU - Quigley, J.

AU - Ratcliff, B. N.

AU - Reeves, T. W.

AU - Rensing, P. E.

AU - Rochester, L. S.

AU - Rothberg, J. E.

AU - Rowson, P. C.

AU - Russell, J. J.

AU - Saxton, O. H.

AU - Schalk, T.

AU - Schindler, R. H.

AU - Schneekloth, U.

AU - Schumm, B. A.

AU - Seiden, A.

AU - Sen, S.

AU - Serbo, V. V.

AU - Shaevitz, M. H.

AU - Shank, J. T.

AU - Shapiro, G.

AU - Shapiro, S. L.

AU - Sherden, D. J.

AU - Simopoulos, C.

AU - Sinev, N. B.

AU - Smith, S. R.

AU - Snyder, J. A.

AU - Stamer, P.

AU - Steiner, H.

AU - Steiner, R.

AU - Strauss, M. G.

AU - Su, D.

AU - Suekane, F.

AU - Sugiyama, A.

AU - Suzuki, S.

AU - Swartz, M.

AU - Szumilo, A.

AU - Takahashi, T.

AU - Taylor, F. E.

AU - Torrence, E.

AU - Turk, J. D.

AU - Usher, T.

AU - Va'vra, J.

AU - Vannini, C.

AU - Vella, E.

AU - Venuti, J. P.

AU - Verdini, P. G.

AU - Wagner, S. R.

AU - Waite, A. P.

AU - Watts, S. J.

AU - Weidemann, A. W.

AU - Whitaker, J. S.

AU - White, S. L.

AU - Wickens, F. J.

AU - Williams, D. A.

AU - Williams, D. C.

AU - Williams, S. H.

AU - Willocq, S.

AU - Wilson, R. J.

AU - Wisniewski, W. J.

AU - Woods, M.

AU - Word, G. B.

AU - Wyss, J.

AU - Yamamoto, R. K.

AU - Yamartino, J. M.

AU - Yang, X.

AU - Yellin, S. J.

AU - Young, C. C.

AU - Yuta, H.

AU - Zapalac, G.

AU - Zdarko, R. W.

AU - Zeitlin, C.

AU - Zhou, J.

PY - 1995

Y1 - 1995

N2 - Using an impact parameter tag to select an enriched sample of Z0→bb̄ events, and the net momentum-weighted track charge to identify the sign of the charge of the underlying b quark, we have measured the left-right forward-backward asymmetry for b quark production as a function of polar angle. Based on 1.8 pb-1 of Z0 decay data produced with a mean electron beam polarization of Pe=63%, this yields a direct measurement of the extent of parity violation in the Zbb coupling of Ab=0.87±0.11(stat)±0. 09(syst).

AB - Using an impact parameter tag to select an enriched sample of Z0→bb̄ events, and the net momentum-weighted track charge to identify the sign of the charge of the underlying b quark, we have measured the left-right forward-backward asymmetry for b quark production as a function of polar angle. Based on 1.8 pb-1 of Z0 decay data produced with a mean electron beam polarization of Pe=63%, this yields a direct measurement of the extent of parity violation in the Zbb coupling of Ab=0.87±0.11(stat)±0. 09(syst).

UR - http://www.scopus.com/inward/record.url?scp=0000815995&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevLett.74.2890

DO - 10.1103/PhysRevLett.74.2890

M3 - Article

C2 - 10058051

AN - SCOPUS:0000815995

SN - 0031-9007

VL - 74

SP - 2890

EP - 2894

JO - Physical review letters

JF - Physical review letters

IS - 15

ER -

Measurement of the parity-violation parameter Ab from the left-right forward-backward asymmetry of b quark production in Z0 decays using a momentum-weighted track-charge technique

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