Probe of the radion-Higgs mixing in the Randall-Sundrum model at e+e- colliders -: art. no. 075017

被引：11
|
作者：
Cheung, K [1 ]
Kim, CS
Song, J
机构：
[1] Natl Tsing Hua Univ, Natl Ctr Theoret Sci, Hsinchu, Taiwan
[2] Yonsei Univ, Dept Phys, Seoul 120749, South Korea
[3] Yonsei Univ, IPAP, Seoul 120749, South Korea
[4] Korea Inst Adv Study, Sch Phys, Seoul 130012, South Korea
来源：
PHYSICAL REVIEW D | 2003年 / 67卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.67.075017
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the Randall-Sundrum model, the radion-Higgs mixing is weakly suppressed by the effective electroweak scale. A novel feature of the existence of gravity-scalar mixing would be a sizable three-point vertex, h(munu)((n))-h-phi. We study this vertex in the process e(+)e(-)-->h(munu)((n))-->hphi, which is allowed only with a nonzero radion-Higgs mixing. It is shown that the angular distribution is a unique characteristic of the exchange of massive spin-2 gravitons, and the total cross section at the future e(+)e(-) colliders is big enough to cover a large portion of the parameter space that the LEP or LEP II data cannot constrain.
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页数：6
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