tailieunhanh - The e−e production via yy collision in the randall sundrum model at the ILC

Taking into account the 125 GeV Higgs boson and radion propagators, we investigate the e−e+ production via yy collision in the Randall-Sundrum model at International Linear Collider (ILC). The observable cross-sections are calculated for the diphoton collision. The cross-sections are evaluated with dependence on the collision energy √s, the polarization of electron and positron beams. | HNUE JOURNAL OF SCIENCE DOI Natural Sciences 2018 Volume 63 Issue 11 pp. 28-33 This paper is available online at http THE e e PRODUCTION VIA γγ COLLISION IN THE RANDALL-SUNDRUM MODEL AT THE ILC Bui Thi Ha Giang Faculty of Physics Hanoi National University of Education Abstract. Taking into account the 125 GeV Higgs boson and radion propagators we investigate the e e production via γγ collision in the Randall-Sundrum model at International Linear Collider ILC . The observable cross-sections are calculated for the diphoton collision. The cross-sections are evaluated with dependence on the collision energy s the polarization of electron and positron beams. Keywords ILC diphoton collision cross-section. 1. Introduction The gauge hierarchy between the eletroweak scale and the Plank scale was solved naturally by the Randall-Sundrum RS model in 1999 1 . The RS model involves two three-branes bounding a slice of 5D compact anti-de Sitter space taken to be on an S 1 Z2 orbifold extra dimension. Gravity is localized at the UV brane while the Standard model fields are supposed to be localized at the IR brane. The additional scalar called radion φ corresponds to the fluctuations of the size of the extra dimension 2-5 . Radion can be the lightest particle in the RS model. In the effective four dimensional theory the Higgs boson and the radion can be mixed since radion and Higgs fields have the same quantum numbers 6 7 . In 2012 the 125 GeV Higgs signal is discovered by the ATLAS and CMS collaborations 8 9 which has completed the particle spectrum of the Standard model. The international linear collider ILC 10 which is an e e collider with high energy and luminosity will supply the chance to detect new physics. The potential of the ILC can be enhanced by considering γγ and γe collisions with the photon beam generated by the backward Compton scattering of electron and laser beams 11-14 . In this work we investigate the e e production

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