arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0810.3187hep-ex
收藏

一台160-320 GeV直线对撞机,用于研究e+e-> HZ和γ-γ-> H,HH

A 160-320 GeV linear collider to study e+e- -> HZ and gamma-gamma -> H, HH

Radoje Belusevic

摘要:

提出了两个电子直线加速器和一个光学自由电子激光系统的结构。该设施主要用作希格斯玻色子对撞机工厂,可以分两个阶段建造,每个阶段都有不同的物理目标,需要特定的质心能量:(1)e+e-> HZ(E_ee ~ 250 GeV),(2)gamma-gamma -> H,HH(E_ee ~ 160至320 GeV)。在e+e-和gamma-gamma碰撞中,丰富的终态集合在测量希格斯玻色子的质量、自旋、宇称、双光子宽度和三线性自耦合,以及它与费米子和规范玻色子的耦合中起着至关重要的作用;这些量很难只用一个初始状态来确定。在LEP和SLC进行的所有测量都可以使用高度极化的电子束和更高的亮度重复进行。对于标准模型内外的一些过程,所需的CM能量在拟议的设施比在e+e-或质子对撞机低得多。

英文摘要:

The construction of two electron linacs and an optical FEL system is proposed. This facility, which would serve primarily as a Higgs-boson collider factory, could be built in two stages, each with distinct physics objectives requiring particular center-of-mass (CM) energies: (1) e+e- -> HZ (E_ee ~ 250 GeV), and (2) gamma-gamma -> H, HH (E_ee ~ 160 to 320 GeV). The rich set of final states in e+e- and gamma-gamma collisions would play an essential role in measuring the mass, spin, parity, two-photon width and trilinear self-coupling of the Higgs boson, as well as its couplings to fermions and gauge bosons; these quantities are difficult to determine with only one initial state. All the measurements made at LEP and SLC could be repeated using highly polarized electron beams and at much higher luminosities. For some processes within and beyond the Standard Model, the required CM energy is considerably lower at the proposed facility than at an e+e- or proton collider.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑