CP violation and CKM predictions from discrete torsion

被引:9
作者
Abel, SA
Owen, AW
机构
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D O I
10.1016/S0550-3213(02)01121-5
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present a supersymmetric D-brane model that has CP spontaneously broken by discrete torsion. The low energy physics is largely independent of the compactification scheme and the Kahler metric has `texture zeros' dictated by the choice of discrete torsion. This motivates a simple ansatz for the Kahler metric which results in a CKM matrix given in terms of two free parameters, hence we predict a single mixing angle and the CKM phase. The CKM phase is predicted to be close to pi/3. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码:191 / 210
页数:20
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