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Colour Interference and Confinement Effects in W-pair Production

Gustafson, Gösta LU and Häkkinen, Jari LU (1994) In Zeitschrift für Physik C Particles and Fields 64(4). p.659-664
Abstract
In the reactione + e – rarrW + W – rarr ( $$q_1 ar q_2 $$ ) ( $$Q_1 ar Q_2 $$ ) we expect that normally the colour singlet systems ( $$q_1 ar q_2 $$ ) and ( $$Q_1 ar Q_2 $$ ) hadronize independently into two hadron chains or strings. However also the pairs ( $$q_1 ar Q_2 $$ ) and ( $$Q_1 ar q_2 $$ ) form colour singlets with probability 1/N c 2 =1/9. This probability could be further enhanced by gluon exchange. We therefore expect that the hadronization can give ldquorecoupledrdquo colour strings between these quark-antiquark pairs with some small probability, and a study of this effect will give interesting information about the vacuum structure. In this paper we discuss a possible experimental signal for recoupled events and show that... (More)
In the reactione + e – rarrW + W – rarr ( $$q_1 ar q_2 $$ ) ( $$Q_1 ar Q_2 $$ ) we expect that normally the colour singlet systems ( $$q_1 ar q_2 $$ ) and ( $$Q_1 ar Q_2 $$ ) hadronize independently into two hadron chains or strings. However also the pairs ( $$q_1 ar Q_2 $$ ) and ( $$Q_1 ar q_2 $$ ) form colour singlets with probability 1/N c 2 =1/9. This probability could be further enhanced by gluon exchange. We therefore expect that the hadronization can give ldquorecoupledrdquo colour strings between these quark-antiquark pairs with some small probability, and a study of this effect will give interesting information about the vacuum structure. In this paper we discuss a possible experimental signal for recoupled events and show that such events can be identified also when the effect of gluon emission before the recoupling is taken into account. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Zeitschrift für Physik C Particles and Fields
volume
64
issue
4
pages
659 - 664
publisher
Springer
external identifiers
  • scopus:0000450928
ISSN
0170-9739
DOI
10.1007/BF01957774
language
English
LU publication?
yes
id
b83f2515-53d6-4999-ad86-74f7f2db22c3 (old id 31259)
date added to LUP
2007-06-19 14:32:47
date last changed
2017-04-21 01:35:47
@article{b83f2515-53d6-4999-ad86-74f7f2db22c3,
  abstract     = {In the reactione + e – rarrW + W – rarr ( $$q_1 ar q_2 $$ ) ( $$Q_1 ar Q_2 $$ ) we expect that normally the colour singlet systems ( $$q_1 ar q_2 $$ ) and ( $$Q_1 ar Q_2 $$ ) hadronize independently into two hadron chains or strings. However also the pairs ( $$q_1 ar Q_2 $$ ) and ( $$Q_1 ar q_2 $$ ) form colour singlets with probability 1/N c 2 =1/9. This probability could be further enhanced by gluon exchange. We therefore expect that the hadronization can give ldquorecoupledrdquo colour strings between these quark-antiquark pairs with some small probability, and a study of this effect will give interesting information about the vacuum structure. In this paper we discuss a possible experimental signal for recoupled events and show that such events can be identified also when the effect of gluon emission before the recoupling is taken into account.},
  author       = {Gustafson, Gösta and Häkkinen, Jari},
  issn         = {0170-9739},
  language     = {eng},
  number       = {4},
  pages        = {659--664},
  publisher    = {Springer},
  series       = {Zeitschrift für Physik C Particles and Fields},
  title        = {Colour Interference and Confinement Effects in W-pair Production},
  url          = {http://dx.doi.org/10.1007/BF01957774},
  volume       = {64},
  year         = {1994},
}