Single top quark production in e gamma collisions and testing technicolor models - art. no. 014002

Citation
Xl. Wang et al., Single top quark production in e gamma collisions and testing technicolor models - art. no. 014002, PHYS REV D, 6001(1), 1999, pp. 4002
Citations number
71
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6001
Issue
1
Year of publication
1999
Database
ISI
SICI code
0556-2821(19990701)6001:1<4002:STQPIE>2.0.ZU;2-I
Abstract
We study the single top quark production process e(+) gamma-->t<(b nu)over bar>(e) in various kinds of technicolor models in high energy e gamma colli sions at the future e(+)e(-) linear colliders. It is shown that if there is a certain charged pseudo-Goldstone-boson (PGB) coupling to <t(b)over bar>, the <t(b)over bar>-channel PGB contribution is dominant, but the situation is quite different from that in the neutral channel gamma gamma--><t(t)ove r bar> due to the destructive nature of different amplitudes. At the DESY l inear collider TESLA, the event rates in models with <t(b)over bar>-channel PGB contributions, such as the top-color-assisted technicolor model, etc., are experimentally measurable. The e(+) gamma-->t<(b nu)over bar>(e) proce ss provides a feasible test of technicolor models with <t(b)over bar>-chann el charged PGB contributions. [S0556-2821(99)04511-7].