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题名: TeV-scale string resonances at hadron colliders
作者: Burikham, P ;  Figy, T ;  Han, T
刊名: PHYSICAL REVIEW D
出版日期: 2005
卷号: 71, 期号:1, 页码:-
关键词: EXTRA-DIMENSIONS ;  GAUGE BOSONS ;  COSMIC NEUTRINOS ;  HIERARCHY ;  NUCLEON ;  MODELS ;  PHENOMENOLOGY ;  CONSTRAINTS ;  MILLIMETER ;  COLLISIONS
学科分类: Physics
通讯作者: Burikham, P , Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA.
部门归属: Univ Wisconsin, Dept Phys, Madison, WI 53706 USA; Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We construct tree-level four-particle open-string amplitudes relevant to dilepton and diphoton production at hadron colliders. We expand the amplitudes into string resonance (SR) contributions and compare the total cross-section through the first SR with the Z(') search at the Tevatron. We establish a current lower bound based on the CDF Run I results on the string scale to be about 1.1-2.1 TeV, and it can be improved to about 1.5-3 TeV with 2 fb(-1). At the LHC, we investigate the properties of signals induced by string resonances in dilepton and diphoton processes. We demonstrate the unique aspects of SR-induced signals distinguishable from other new physics, such as the angular distributions and forward-backward asymmetry. A 95% C.L. lower bound can be reached at the LHC for M-S>8.2-10 TeV with an integrated luminosity of 300 fb(-1). We emphasize the generic features and profound implications of the amplitude construction.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000226702300083
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13919
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Burikham, P,Figy, T,Han, T. TeV-scale string resonances at hadron colliders[J]. PHYSICAL REVIEW D,2005,71(1):-.
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