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Bishara, F; Grossman, Y; Harnik, R; Robinson, DJ; Shu, J; Zupan, J; Bishara, F (reprint author), Univ Cincinnati, Dept Phys, 345 Clifton Ct, Cincinnati, OH 45221 USA.
Probing CP violation in h -> gamma gamma with converted photons
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordModel Higgs-boson Top-quark Pair Production Decay Mode Mass Tau Parity Lhc Taubartau Events
AbstractWe 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.
2014
ISSN1029-8479
Issue4Pages:84
Subject AreaPhysics
DOI10.1007/JHEP04(2014)084
Indexed BySCI
Funding OrganizationFermilab 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] ; 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] ; 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] ; 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]
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15785
CollectionSCI期刊论文
Corresponding AuthorBishara, F (reprint author), Univ Cincinnati, Dept Phys, 345 Clifton Ct, Cincinnati, OH 45221 USA.
Recommended Citation
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):84.
APA Bishara, F.,Grossman, Y.,Harnik, R.,Robinson, DJ.,Shu, J.,...&Bishara, F .(2014).Probing CP violation in h -> gamma gamma with converted photons.JOURNAL OF HIGH ENERGY PHYSICS(4),84.
MLA Bishara, F,et al."Probing CP violation in h -> gamma gamma with converted photons".JOURNAL OF HIGH ENERGY PHYSICS .4(2014):84.
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