EXPERIMENTAL-STUDY OF THE TRIPLE-GLUON VERTEX

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3044286 35 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
EXPERIMENTAL-STUDY OF THE TRIPLE-GLUON VERTEX
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
In four-jet events from e+e- –> Z0 –> multihadrons one can separate
the three principal contributions from the triple-gluon vertex, double
gluon-bremsstrahlung and the secondary quark-antiquark production, using
the shape of the two-dimensional angular distributions in the
generalized Nachtmann-Reiter angle theta-NR* and the opening angle of
the secondary jets. Thus one can identify directly the contribution from
the triple-gluon vertex without comparison with a specific non-QCD
model. Applying this new method to events taken with the DELPHI-detector
we get for the ratio of the colour factor N(C) to the fermionic Casimir
operator C(F): N(C)/C(F) = 2.55 +/- 0.55(stat.) +/- 0.4(fragm. + models)
+/- 0.2(error in bias) in agreement with the value 2.25 expected in QCD
from N(C) = 3 and C(F) = 4/3.
Έτος δημοσίευσης:
1991
Συγγραφείς:
Abreu, P
Adam, W
Adami, F
Adye, T
Akesson, T and
Alekseev, GD
Allen, P
Almehed, S
Alted, F
Alvsvaag, SJ
and Amaldi, U
Anassontzis, E
Apel, WD
Asman, B
Astier, P
and Augustin, JE
Augustinus, A
Baillon, P
Bambade, P and
Bara, F
Barbiellini, G
Bardin, DY
Baroncelli, A
Barring,
O
Bartl, W
Bates, MJ
Baubillier, M
Becks, KH and
Beeston, CJ
Begalli, M
Beilliere, P
Belokopytov, I and
Beltran, P
Benedic, D
Benlloch, JM
Berggren, M
Bertrand,
D
Biagi, S
Bianchi, F
Bibby, JH
Bilenky, MS
Billoir,
P
Bjarne, J
Bloch, D
Bogolubov, PN
Bollini, D and
Bolognese, T
Bonapart, M
Bonesini, M
Booth, PSL
Boratav,
M
Borgeaud, P
Borner, H
Bosio, C
Botner, O
Bouquet,
B
Bozzo, M
Braibant, S
Branchini, P
Brand, KD and
Brenner, RA
Bricman, C
Brown, RCA
Brummer, N
Brunet, JM
and Bugge, L
Buran, T
Burmeister, H
Buytaert, JAMA and
Caccia, M
Calvi, M
Rozas, AJC
Campagne, JE
Campion, A
and Camporesi, T
Canale, V
Cao, F
Carroll, L
Caso, C and
Castelli, E
Gimenez, MVC
Cattai, A
Cavallo, FR
Cerritp,
L
Charpentier, P
Checchia, P
Chelkov, GA
Chevalier, L
and Chliapnikov, P
Chorowicz, V
Cirio, R
Clara, MP and
Contreras, JL
Contri, R
Cosme, G
Couchot, F
Crawley, HB
and Crennell, D
Crosetti, G
Crosland, N
Crozon, M and
Maestro, JC
Czellar, S
Dagoret, S
Dahl-Jensen, E and
Dalmagne, B
Dam, M
Damgaard, G
Darbo, G
Daubie, E and
Dauncey, PD
Davenport, M
David, P
De Angelis, A
De Beer,
M
De Boeck, H
De Clercq, C
Laso, MDMD
De Groot, N
De
La Vaissiere, C
De Lotto, B
Defoix, C
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Delorme, S
Delpierre, P
Demaria, N
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Dijkstra, H
Djama, F
Dolbeau, J
Doll, O
Donszelmann, M
and Doroba, K
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Dulinski, W and
Dzhelyadin, R
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and Engel, JP
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and Fokitis, E
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Fontanelli, F
Forsbach, H and
Franek, B
Fransson, KE
Frenkiel, P
Fries, DC
Frodesen,
AG
Fruhwirth, R
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Furnival, K
Furstenau,
H
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Galeazzi, G
Gamba, D
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Gros, MH
and Grosdidier, G
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F
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A
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Herquet, P
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and Holthuizen, D
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PO
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and Jean-Marie, B
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B
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K
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Kruener-Marquis, U
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W
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F
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EI
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and Tyapkin, IA
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Udo, F and
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Valenti, G
Vallazza, E
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JAV
Van Apeldoorn, GW
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Eijndhoven, N
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and Velasco, J
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D
Wormser, G
Woschnagg, K
Yamdagni, N
Yepes, P and
Zaitsev, A
Zalewska, A
Zalewski, P
Zarubin, PI and
Zevgolatakos, E
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Zimin, NI
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Funchal, RZ
and Zumerle, G
Zuniga, J
DELPHI Collaboration
Περιοδικό:
PHYSICS LETTERS B
Εκδότης:
ELSEVIER SCIENCE BV
Τόμος:
255
Αριθμός / τεύχος:
3
Σελίδες:
466-476
Επίσημο URL (Εκδότης):
DOI:
10.1016/0370-2693(91)90796-S
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