Phys. Rev. D
46,
4822–4827
(1992)
Shape studies of quark jets versus gluon jets at √s=10 GeV
M. S. Alam et al. (CLEO Collaboration)
Show All Authors/Affiliations
Hide All Authors/Affiliations
M. S. Alam, I. J. Kim, B. Nemati, J. J. O'Neill, V. Romero, H. Severini, C. R. Sun, P. -N. Wang, M. M. Zoeller, G. Crawford, R. Fulton, K. K. Gan, H. Kagan, R. Kass, J. Lee, R. Malchow, F. Morrow, M. Sung, C. White, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P. -L. Wang, D. Bortoletto, D. N. Brown, J. Dominick, R. L. McIlwain, T. Miao, D. H. Miller, M. Modesitt, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, M. Battle, J. Ernst, H. Kroha, S. Roberts, K. Sparks, E. H. Thorndike, C. -H. Wang, M. Artuso, M. Goldberg, T. Haupt, N. Horwitz, R. Kennett, G. C. Moneti, S. Playfer, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thulasidas, W. -M. Yao, G. Zhu, R. Stroynowski, A. V. Barnes, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, T. Letson, M. D. Mestayer, P. Sheldon, D. S. Akerib, B. Barish, M. Chadha, D. F. Cowen, G. Eigen, J. S. Miller, J. Urheim, A. J. Weinstein, S. Menary, R. J. Morrison, H. N. Nelson, J. Richman, H. Tajima, D. Schmidt, D. Sperka, M. Witherell, D. Acosta, G. Masek, B. Ong, H. Paar, M. Sivertz, M. Procario, M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. Alexander, C. Bebek, K. Berkelman, D. Besson, T. E. Browder, D. G. Cassel, E. C. Cheu, D. M. Coffman, P. S. Drell, R. Ehrlich, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honscheid, C. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, C. R. Ng, E. Nordberg, C. O'Grady, J. R. Patterson, D. Peterson, D. Riley, M. Sapper, M. Selen, H. Worden, M. Worris, F. Würthwein, P. Avery, A. Freyberger, J. Rodriguez, R. Stephens, J. Yelton, S. Henderson, K. Kinoshita, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto, A. J. Sadoff, R. Ammar, S. Ball, P. Baringer, D. Coppage, R. Davis, N. Hancock, M. Kelly, N. Kwak, H. Lam, S. Ro, Y. Kubota, M. Lattery, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, and R. Wang (CLEO Collaboration)
aState University of New York at Albany, Albany, New York 12222 bOhio State University, Columbus, Ohio 43210 cUniversity of Oklahoma, Norman, Oklahoma 73019 dPurdue University, West Lafayette, Indiana 47907 eUniversity of Rochester, Rochester, New York 14627 fSyracuse University, Syracuse, New York 13244 gSouthern Methodist University, Dallas, Texas 75275 hVanderbilt University, Nashville, Tennessee 37235 iCalifornia Institute of Technology, Pasadena, California 91125 jUniversity of California at Santa Barbara, Santa Barbara, California 93106 kUniversity of California at San Diego, La Jolla, California 92093 lCarnegie-Mellon University, Pittsburgh, Pennsylvania 15213 mUniversity of Colorado, Boulder, Colorado 80309-0390 nCornell University, Ithaca, New York 14853 oUniversity of Florida, Gainesville, Florida 32611 pHarvard University, Cambridge, Massachusetts 02138 qIthaca College, Ithaca, New York 14850 rUniversity of Kansas, Lawrence, Kansas 66045 sUniversity of Minnesota, Minneapolis, Minnesota 55455
Received 1 June 1992; published in the issue dated 1 December 1992
Using date from e+e- annihilation into hadrons taken on the ϒ(1S) and continuum, we are able to compare event properties of three-gluon (ggg) and quark-antiquark (qq̅ ) decays. By tagging radiative decays of the ϒ(3S) to the χb′ states, we can make comparisons of the χb′ event shapes with continuum and ggg decays of the ϒ(1S). Contrary to the notion that two-gluon (gg) events are globally very similar to qq̅ jets, we infer from a study of the χb′(J=0 or 2) states that gg event shapes more closely resemble ggg decays of the ϒ(1S), whereas qq̅ g decays of the χb′(J=1) state more closely resemble qq̅ continuum events in their decay characteristics.
© 1992 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.46.4822
DOI:
10.1103/PhysRevD.46.4822
PACS:
13.87.Fh, 13.25.+m, 13.65.+i
|
|