Probing CP violation in h -> gamma gamma with converted photons
文献类型：期刊论文
| 作者 | Bishara, F ; Grossman, Y ; Harnik, R ; Robinson, DJ ; Shu, J ; Zupan, J |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2014 |
| 期号 | 4 |
| ISSN号 | 1029-8479 |
| 关键词 | Higgs Physics Beyond Standard Model CP violation |
| 通讯作者 | Bishara, F (reprint author), Univ Cincinnati, Dept Phys, 345 Clifton Ct, Cincinnati, OH 45221 USA. |
| 中文摘要 | We study Higgs diphoton decays, in which both photons undergo nuclear conversion to electron-positron pairs. The kinematic distribution of the two electron-positron pairs may be used to probe the CP violating (CPV) coupling of the Higgs to photons, that may be produced by new physics. Detecting CPV in this manner requires interference between the spin-polarized helicity amplitudes for both conversions. We derive leading order, analytic forms for these amplitudes. In turn, we obtain compact, leading-order expressions for the full process rate. While performing experiments involving photon conversions may be challenging, we use the results of our analysis to construct experimental cuts on certain observables that may enhance sensitivity to CPV. We show that there exist regions of phase space on which sensitivity to CPV is of order unity. The statistical sensitivity of these cuts are verified numerically, using dedicated Monte-Carlo simulations. |
| 资助信息 | Fermilab Fellowship in Theoretical Physics; U.S. National Science Foundation [PHY-0757868, PHY-1002399, PHY-1151392]; United States-Israel Binational Science Foundation (BSF) [2010221]; National Science Foundation [NSF PHY11-25915]; Fermi Research Alliance, LLC [De-AC02-07CH11359] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59199]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Bishara, F,Grossman, Y,Harnik, R,et al. Probing CP violation in h -> gamma gamma with converted photons[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(4). |
| APA | Bishara, F,Grossman, Y,Harnik, R,Robinson, DJ,Shu, J,&Zupan, J.(2014).Probing CP violation in h -> gamma gamma with converted photons.JOURNAL OF HIGH ENERGY PHYSICS(4). |
| MLA | Bishara, F,et al."Probing CP violation in h -> gamma gamma with converted photons".JOURNAL OF HIGH ENERGY PHYSICS .4(2014). |
入库方式： OAI收割
来源：物理研究所
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