The scale dependence of the hadron multiplicity in quark and gluon jets and a precise determination of C(A)/C(F)

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3051604 62 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
The scale dependence of the hadron multiplicity in quark and gluon jets
and a precise determination of C(A)/C(F)
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Data collected at the Z resonance using the DELPHI detector at LEP are
used to determine the charged hadron multiplicity in gluon and quark
jets as a function of a transverse momentum-like scale. The colour
factor ratio, C(A)/C(F), is directly observed in the increase of
multiplicities with that scale. The smaller than expected multiplicity
ratio in gluon to quark jets is understood by differences in the
hadronization of the leading quark or gluon. From the dependence of the
charged hadron multiplicity on the opening angle in symmetric three-jet
events the colour factor ratio is measured to be: C(A)/C(F) = 2.246 +/-
0.062(stat.) +/- 0.080(syst.) +/- 0.095(theo.) (C) 1999 Elsevier Science
B.V, All rights reserved.
Έτος δημοσίευσης:
1999
Συγγραφείς:
Abreu, P
Abreu, P
Adam, W
Adye, T
Adzic, P
Ajinenko,
I
Albrecht, Z
Alderweireld, T
Alekseev, GD
Alemany, R
and Allmendinger, T
Allport, PP
Almehed, S
Amaldi, U and
Amato, S
Anassontzis, EG
Andersson, P
Andreazza, A and
Andringa, S
Antilogus, P
Apel, WD
Arnoud, Y
Asman, B and
Augustin, JE
Augustinus, A
Baillon, P
Bambade, P
Barao,
F
Barbiellini, G
Barbier, R
Bardin, DY
Barker, G and
Baroncelli, A
Battaglia, M
Baubillier, M
Becks, KH and
Begalli, M
Beilliere, P
Belokopytov, Y
Benvenuti, AC and
Berat, C
Berggren, M
Bertini, D
Bertrand, D
Besancon, M
and Bianchi, F
Bigi, M
Bilenky, MS
Bizouard, MA
Bloch, D
and Blom, HM
Bonesini, M
Bonivento, W
Boonekamp, M and
Booth, PSL
Borgland, AW
Borisov, G
Bosio, C
Botner, O
and Boudinov, E
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Bourdarios, C
Bowcock, TJV and
Boyko, I
Bozovic, I
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Branchini, P
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Brunet, JM
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Buschmann, P
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DELPHI Collaboration
Περιοδικό:
PHYSICS LETTERS B
Εκδότης:
ELSEVIER SCIENCE BV
Τόμος:
449
Αριθμός / τεύχος:
3-4
Σελίδες:
383-400
Επίσημο URL (Εκδότης):
DOI:
10.1016/S0370-2693(99)00112-4
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