LARGE TREE-LEVEL CP VIOLATION IN E(-)-]T(T)OVER-BARH(0) IN THE 2-HIGGS-DOUBLET MODEL()E()

Authors
BARSHALOM S ATWOOD D EILAM G MENDEL RR SONI A
Citation
S. Barshalom et al., LARGE TREE-LEVEL CP VIOLATION IN E(-)-]T(T)OVER-BARH(0) IN THE 2-HIGGS-DOUBLET MODEL()E(), Physical review. D. Particles and fields, 53(3), 1996, pp. 1162-1167
Citations number
20
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
53
Issue
3
Year of publication
1996
Pages
1162 - 1167
Database
ISI
SICI code
0556-2821(1996)53:3<1162:LTCVIE>2.0.ZU;2-B
Abstract
We find a large CP violation effect within the two-Higgs-doublet model for the reaction e(+)e(-) --> <t(t)over barH(0)> at future linear col liders. The CP asymmetry arises already at the tree level as a result of interference between diagrams with H-0 emission from t (and (t) ove r bar and its emission from a Z(0) and can be about 10-20 %. In the be st case one needs a few hundred <t(t)over barH(0)> events to observe C P violation at the 3 sigma level.