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Shape studies of quark jets versus gluon jets ats=10GeV
Author(s) -
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. C. Barish,
M. Chadha,
D.F. Cowen,
G. Eigen,
J. S. Miller,
J. Urheim,
A. J. Weinstein,
S. Menary,
R. J. Morrison,
H. Nelson,
J. Richman,
H. Tajima,
D. Schmidt,
D. Sperka,
M. S. Witherell,
D. Acosta,
G. Masek,
B. Ong,
H. Paar,
M. Sivertz,
M. Procario,
M. Daoudi,
W. T. Ford,
D. Johnson,
K. Lingel,
M. Lohner,
P. Rankin,
J. G. Smith,
J. P. Alexander,
C. Bebek,
K. Berkelman,
D. Besson,
T. E. Browder,
D. G. Cassel,
E. 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. D. 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. P. O’Grady,
J. R. Patterson,
D. Peterson,
D. Riley,
M. Sapper,
M. Selen,
H. M. Worden,
M. Worris,
F. Würthwein,
P. Avery,
A. Freyberger,
J. L. Rodriguez,
R. W. Stephens,
J. Yelton,
S. Henderson,
K. Kinoshita,
Tianjia Liu,
M. Saulnier,
R. J. 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. R. Ro,
Y. Kubota,
M. Lattery,
J. K. Nelson,
D. Perticone,
R. Poling,
S. Schrenk,
R. Wang
Publication year - 1992
Publication title -
physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields
Language(s) - English
Resource type - Journals
eISSN - 1089-4918
pISSN - 0556-2821
DOI - 10.1103/physrevd.46.4822
Subject(s) - physics , annihilation , particle physics , hadron , gluon , quark , nuclear physics
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.

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