Gravitational decays of heavy particles in large extra dimensions

被引：7

作者：

Gabrielli, E ^{[1
]}

Mele, B

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[2] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[3] Univ Roma La Sapienza, Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[4] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

来源：

NUCLEAR PHYSICS B | 2002年 / 647卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(02)00932-X

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：

In the framework of quantum gravity propagating in large extra dimensions, we analyze the inclusive radiative emission of Kaluza-Klein spin-2 gravitons in the two-fermions decays of massive gauge bosons, heavy quarks, Higgs bosons. and in the two-massive gauge bosons decay of Higgs bosons. We provide analytical expressions for the square modulus of amplitudes summed over polarizations, and numerical results for the widths and branching ratios. The corresponding decays in the Z, top quark, and Higgs boson sectors of the standard model are analyzed in the light of present and future experiments. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：319 / 343

页数：25

共 52 条

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