Reconstructing the 125 GeV SM Higgs boson through l(l)over-barγ

被引：32

作者：

Chen, Long-Bin ^{[1
]}

Qiao, Cong-Feng ^{[1
,2
]}

Zhu, Rui-Lin ^{[1
]}

机构：

[1] Univ Chinese Acad Sci, Dept Phys, YuQuan Rd 19A, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China

来源：

PHYSICS LETTERS B | 2013年 / 726卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

AMPLITUDES;

D O I：

10.1016/j.physletb.2013.08.050

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To ascertain the new boson with mass near 125 GeV observed recently by ATLAS and CMS Collaborations to be the Standard Model Higgs, and to determine its intrinsic properties, more measurements on its various decay channels are still necessary. In this work we reanalyze the processes of the Standard Model Higgs radiative decays to lepton pairs. We find that when photon and leptons are hard, that is possessing energies larger than 1 GeV, the branching fractions of H -> l (l) over bar gamma (l = e or mu) processes are about two-thirds of the H -> mu(+)mu(-) process. Since the lepton pair yields of the radiative processes mainly come from the Z-boson conversion, which will greatly suppress the backgrounds, we believe the signal should be observable in presently accumulated data or in the next run of the LHC experiment, provided the Standard Model Higgs is indeed light. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：306 / 311

页数：6

共 29 条

[1] Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, U. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Allbrooke, B. M. M. .

PHYSICS LETTERS B, 2012, 716 (01) :1-29

[2] Radiative Higgs boson decays H->f(f)over-bar gamma [J].

Abbasabadi, A ;

BowserChao, D ;

Dicus, DA ;

Repko, WW .

PHYSICAL REVIEW D, 1997, 55 (09) :5647-5656

[3]

[Anonymous], CMSPASHIG12049

[4]

[Anonymous], PHYS REV D

[5]

[Anonymous], ARXIVHEPPH0412191

[6]

[Anonymous], ARXIV11085322HEPPH

[7]

[Anonymous], HADR COLL PHYS S KYO

[8]

[Anonymous], ARXIV12100141HEPPH

[9] Production of Bc or (B)over-barc meson and its excited states via (t)over-bar-quark or t-quark decays [J].

Chang, Chao-Hsi ;

Wang, Jian-Xiong ;

Wu, Xing-Gang .

PHYSICAL REVIEW D, 2008, 77 (01)

[10]

Chatrchyan S., 2012, Phys. Lett. B,, V716, P30, DOI [DOI 10.1016/J.PHYSLETB.2012.08.021, 10.1016/j.physletb.2012.08.021, DOI 10.1016/j.physletb.2012.08.021]

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