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Test of the flavor independence of strong interactions

Abe, K. and Abt, I. and Ahn, C. J. and Akagi, T. and Allen, N. J. and Ash, W. W. and Aston, D. and Bacchetta, N. and Baird, K. G. and Baltay, C. and Band, H. R. and Barakat, M. B. and Baranko, G. and Bardon, O. and Barklow, T. and Bazarko, A. O. and Ben-David, R. and Benvenuti, A. C. and Bienz, T. and Bilei, G. M. and Bisello, D. and Blaylock, G. and Bogart, J. R. and Bolton, T. and Bower, G. R. and Brau, J. E. and Breidenbach, M. and Bugg, W. M. and Burke, D. and Burnett, T. H. and Burrows, P. N. and Busza, W. and Calcaterra, A. and Caldwell, D. O. and Calloway, D. and Camanzi, B. and Carpinelli, M. and Cassell, R. and Castaldi, R. and Castro, A. and Cavalli-Sforza, M. and Church, E. and Cohn, H. O. and Coller, J. A. and Cook, V. and Cotton, R. and Cowan, R. F. and Coyne, D. G. and D'Oliviera, A. and Damerell, C. J. S. and De Sangro, R. and De Simone, P. and Dell'Orso, R. and Dima, M. and Du, P. Y. C. and Dubois, R. and Eisenstein, B. I. and Elia, R. and Falciai, D. and Fan, C. and Fero, M. J. and Frey, R. and Furuno, K. and Gillman, T. and Gladding, G. and Gonzalez, S. and Hallewell, G. D. and Hart, E. L. and Hasegawa, Y. and Hedges, S. and Hertzbach, S. S. and Hildreth, M. D. and Huber, J. and Huffer, M. E. and Hughes, E. W. and Hwang, H. and Iwasaki, Y. and Jacques, P. and Jaros, J. and Johnson, A. S. and Johnson, J. R. and Johnson, R. A. and Junk, T. and Kajikawa, R. and Kalelkar, M. and Karliner, I. and Kawahara, H. and Kendall, H. W. and King, M. E. and King, R. and Kofler, R. R. and Krishna, N. M. and Kroeger, R. S. and Labs, J. F. and Langston, M. and Lath, A. and Lauber, J. A. and Leith, D. W. G. and Liu, X. and Loreti, M. and Lu, A. and Lynch, H. L. and Ma, J. and Mancinelli, G. and Manly, S. and Mantovani, G. and Markiewicz, T. W. and Maruyama, T. and Massetti, R. and Masuda, H. and Mazzucato, E. and McKemey, A. K. and Meadows, B. T. and Messner, R. and Mockett, P. M. and Moffeit, K. C. and Mours, B. and Müller, G. and Muller, D. and Nagamine, T. and Nauenberg, U. and Neal, H. and Nussbaum, M. and Ohnishi, Y. and Osborne, L. S. and Panvini, R. S. and Park, H. and Pavel, T. J. and Peruzzi, I. and Pescara, L. and Piccolo, M. and Piemontese, L. and Pieroni, E. and Pitts, K. T. and Plano, R. J. and Prepost, R. and Prescott, C. Y. and Punkar, G. D. and Quigley, J. 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 Schalk, T. and Schindler, R. H. and Schneekloth, U. and Schumm, B. A. and Seiden, A. and Sen, S. and Serbo, V. V. and Shaevitz, M. H. and Shank, J. T. and Shapiro, G. and Shapiro, S. L. and Sherden, D. J. and Simopoulos, C. and Sinev, N. B. and Smith, S. R. and Snyder, J. A. and Stamer, P. and Steiner, H. and Steiner, R. and Strauss, M. G. and Su, D. and Suekane, F. and Sugiyama, A. and Suzuki, S. and Swartz, M. and Szumilo, A. and Takahashi, T. and Taylor, F. E. and Torrence, E. and Turk, J. D. and Usher, T. and Va'vra, J. and Vannini, C. and Vella, E. and Venuti, J. P. and Verdier, R. 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 Willocq, S. and Wilson, R. J. and Wisniewski, W. J. and Woods, M. and Word, G. B. and Wyss, J. and Yamamoto, R. K. and Yamartino, J. M. and Yang, X. and Yellin, S. J. and Young, C. C. and Yuta, H. and Zapalac, G. and Zdarko, R. W. and Zeitlin, C. and Zhang, Z. and Zhou, J. (1996) Test of the flavor independence of strong interactions. Physical Review D, 53 (5). R2271-R2275. ISSN 2470-0010.

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We present a comparison of the strong couplings of light (u, d, and s), c, and b quarks determined from multijet rates in flavor-tagged samples of hadronic Z0 decays recorded with the SLC Large Detector at the SLAC Linear Collider. Flavor separation on the basis of lifetime and decay multiplicity differences among hadrons containing light, c, and b quarks was made using the SLD precision tracking system. We find αsuds / αsall=0.987±0.027(stat)±0.022(syst)±0.022(theory), αsc / αsall=1.012±0.104±0.102±0.096, and αsb / αsall=1.026±0.041±0.041±0.030.

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Additional Information:© 1996 The American Physical Society. Received 16 December 1994. We thank the personnel of the SLAC accelerator department and the technical staffs of our collaborating institutions for their outstanding efforts. We thank C. Ng, T. Rizzo, and E. Maina for their helpful contributions.
Issue or Number:5
Record Number:CaltechAUTHORS:ABEprd96b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13218
Deposited By: Tony Diaz
Deposited On:03 Feb 2009 18:31
Last Modified:06 Sep 2019 22:12

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