Shape studies of quark jets versus gluon jets at [radical][ital s] =10 GeV

• Published in: Physical review. D, Particles and fields Particles and fields, 1992-12, Vol.46:11
• Main Authors: Alam, M.S., Kim, I.J., Nemati, B., O'Neill, J.J., Romero, V., Severini, H., Sun, C.R., Wang, P., Zoeller, M.M., Crawford, G., Fulton, R., Gan, K.K., Kagan, H., Kass, R., Lee, J., Malchow, R., Morrow, F., Sung, M., White, C., Whitmore, J., Wilson, P., Butler, F., Fu, X., Kalbfleisch, G., Lambrecht, M., Skubic, P., Snow, J., Bortoletto, D., Brown, D.N., Dominick, J., McIlwain, R.L., Miao, T., Miller, D.H., Modesitt, M., Schaffner, S.F., Shibata, E.I., Shipsey, I.P.J., Battle, M., Ernst, J., Kroha, H., Roberts, S., Sparks, K., Thorndike, E.H., Wang, C., Artuso, M., Goldberg, M., Haupt, T., Horwitz, N., Kennett, R., Moneti, G.C., Playfer, S., Rozen, Y., Rubin, P., Skwarnicki, T., Stone, S., Thulasidas, M., Yao, W., Zhu, G., Stroynowski, R., Barnes, A.V., Bartelt, J., Csorna, S.E., Egyed, Z., Jain, V., Letson, T., Mestayer, M.D., Sheldon, P., Akerib, D.S., Barish, B., Chadha, M., Cowen, D.F., Eigen, G., Miller, J.S., Urheim, J., Weinstein, A.J., Menary, S., Morrison, R.J., Nelson
• Format: Article
• Language: English
• Subjects: 662110 - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-); 662310 - Weak & Electromagnetic Interactions of Leptons- (1992-); 662350 - Decays of Mesons- (1992-); 662390 - Electromagnetic Processes & Properties- (1992-); ANNIHILATION; BASIC INTERACTIONS; BOSONS; BOTTOMONIUM; CESR STORAGE RING; COMPOSITE MODELS; DECAY; ELECTROMAGNETIC INTERACTIONS; ELECTRON-POSITRON INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; EXTENDED PARTICLE MODEL; GEV RANGE; GEV RANGE 01-10; GLUONS; HADRONS; INTERACTIONS; JET MODEL; LEP STORAGE RINGS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MESONS; MULTIPLICITY; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PHOTONS; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; POSTULATED PARTICLES; QUARK MODEL; QUARKONIUM; RADIATIVE DECAY; STORAGE RINGS; STRING MODELS; UPSILON-10023 MESONS; VECTOR MESONS
• ISSN: 0556-2821; 1089-4918
• DOI: 10.1103/PhysRevD.46.4822

Using date from [ital e][sup +][ital e[minus]] annihilation into hadrons taken on the [Upsilon](1[ital S]) and continuum, we are able to compare event properties of three-gluon ([ital ggg]) and quark-antiquark ([ital q[bar q]]) decays. By tagging radiative decays of the [Upsilon](3[ital S]) to the [chi][sub [ital b]][sup [prime]] states, we can make comparisons of the [chi][sub [ital b]][sup [prime]] event shapes with continuum and [ital ggg] decays of the [Upsilon](1[ital S]). Contrary to the notion that two-gluon ([ital gg]) events are globally very similar to [ital q[bar q]] jets, we infer from a study of the [chi][sub [ital b]][sup [prime]] ([ital J]=0 or 2) states that [ital gg] event shapes more closely resemble [ital ggg] decays of the [Upsilon](1[ital S]), whereas [ital q[bar q]g] decays of the [chi][sub [ital b]][sup [prime]] ([ital J]=1) state more closely resemble [ital q[bar q]] continuum events in their decay characteristics.