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Color separate singlets in e+ e- annihilation

Gustafson, Gösta LU ; Wang, Qun and Xie, Qu-Bing (2000) In Physical review D: Particles and fields 62(5).
Abstract
We use the method of a color effective Hamiltonian to study the properties of states in which a gluonic subsystem forms a color singlet, and we will study the possibility that such a subsystem hadronizes as a separate unit. A parton system can normally be subdivided into singlet subsystems in many different ways, and one problem arises from the fact that the corresponding states are not orthogonal. We show that if only contributions of order 1/Nc2 are included, the problem is greatly simplified. Only a very limited number of states are possible, and we present an orthogonalization procedure for these states. The result is simple and intuitive and could give an estimate of the possibility to produce color separated gluonic subsystems, if no... (More)
We use the method of a color effective Hamiltonian to study the properties of states in which a gluonic subsystem forms a color singlet, and we will study the possibility that such a subsystem hadronizes as a separate unit. A parton system can normally be subdivided into singlet subsystems in many different ways, and one problem arises from the fact that the corresponding states are not orthogonal. We show that if only contributions of order 1/Nc2 are included, the problem is greatly simplified. Only a very limited number of states are possible, and we present an orthogonalization procedure for these states. The result is simple and intuitive and could give an estimate of the possibility to produce color separated gluonic subsystems, if no dynamical effects are important. We also study with a simple Monte Carlo program the possibility that configurations which correspond to "short strings" are dynamically favored. The advantage of our approach over more elaborate models is its simplicity, which makes it easier to estimate color reconnection effects in reactions which are more complicated than the relatively simple e+e- annihilation. (Less)
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author
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organization
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type
Contribution to journal
publication status
published
subject
in
Physical review D: Particles and fields
volume
62
issue
5
pages
16 pages
publisher
American Physical Society
external identifiers
  • scopus:18444383414
ISSN
1550-2368
DOI
10.1103/PhysRevD.62.054004
language
English
LU publication?
yes
id
196d9a69-2261-4f3d-9fdf-df2287f5aea3
date added to LUP
2019-05-21 13:54:26
date last changed
2020-12-15 01:31:02
@article{196d9a69-2261-4f3d-9fdf-df2287f5aea3,
  abstract     = {We use the method of a color effective Hamiltonian to study the properties of states in which a gluonic subsystem forms a color singlet, and we will study the possibility that such a subsystem hadronizes as a separate unit. A parton system can normally be subdivided into singlet subsystems in many different ways, and one problem arises from the fact that the corresponding states are not orthogonal. We show that if only contributions of order 1/Nc2 are included, the problem is greatly simplified. Only a very limited number of states are possible, and we present an orthogonalization procedure for these states. The result is simple and intuitive and could give an estimate of the possibility to produce color separated gluonic subsystems, if no dynamical effects are important. We also study with a simple Monte Carlo program the possibility that configurations which correspond to "short strings" are dynamically favored. The advantage of our approach over more elaborate models is its simplicity, which makes it easier to estimate color reconnection effects in reactions which are more complicated than the relatively simple e+e- annihilation.},
  author       = {Gustafson, Gösta and Wang, Qun and Xie, Qu-Bing},
  issn         = {1550-2368},
  language     = {eng},
  number       = {5},
  publisher    = {American Physical Society},
  series       = {Physical review D: Particles and fields},
  title        = {Color separate singlets in e+ e- annihilation},
  url          = {http://dx.doi.org/10.1103/PhysRevD.62.054004},
  doi          = {10.1103/PhysRevD.62.054004},
  volume       = {62},
  year         = {2000},
}