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

Journal Article · Tue Dec 01 00:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.4822· OSTI ID:7174427

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; Wang, P; 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,

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.

• OSTI ID: 7174427
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 46:11; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
GLUONS
JET MODEL
QUARKONIUM
VECTOR MESONS
RADIATIVE DECAY
BOTTOMONIUM
CESR STORAGE RING
GEV RANGE 01-10
LEP STORAGE RINGS
MULTIPLICITY
PARTICLE PRODUCTION
PHOTONS
STRING MODELS
UPSILON-10023 MESONS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXTENDED PARTICLE MODEL
GEV RANGE
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUARK MODEL
STORAGE RINGS
662350* - Decays of Mesons- (1992-)
662110 - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)
662310 - Weak & Electromagnetic Interactions of Leptons- (1992-)
662390 - Electromagnetic Processes & Properties- (1992-)