TAILIEUCHUNG - Radion production in high energy photon collisions

We study the Higgs-radion mixing and photon collisions. We consider the radion production in high energy photon collisions to search for the radion in the Randall-Sundrum model. Numerical evaluation gives observable cross-section in the future colliders. | Communications in Physics, Vol. 27, No. 1 (2017), pp. 83-89 DOI: RADION PRODUCTION IN HIGH ENERGY PHOTON COLLISIONS BUI THI HA GIANG1,† , DANG VAN SOA2 AND DAO THI LE THUY1 1 Hanoi National University of Education, 136 Xuan Thuy, Hanoi, Vietnam 2 Hanoi Metropolitian University, 98 Duong Quang Ham, Hanoi, Vietnam † E-mail: giangbth@ Received 20 December 2016 Accepted for publication 27 February 2017 Abstract. We study the Higgs-radion mixing and photon collisions. We consider the radion production in high energy photon collisions to search for the radion in the Randall-Sundrum model. Numerical evaluation gives observable cross-section in the future colliders. Keywords: radion production, photon collision, Randall-Sundrum model. Classification numbers: . I. INTRODUCTION The gauge hierarchy problem is one of theoretical drawbacks of the Standard model (SM). The Randall-Sundrum (RS) model is one of many attempts to extend the SM and solve the hierarchy problem [1]. The RS setup involves two three-branes bounding a slice of 5D compact anti-de Sitter space taken to be on an S1 /Z2 orbifold. Gravity is localized UV brane, while the Standard Model fields are supposed to be localized IR brane. The separation between the two 3-branes leads directly to the existence of an additional scalar called the radion (φ ), corresponding to the quantum fluctuations of the distance between the two 3-branes [2]. The radion mass is considered in the range of O (10 GeV) ≤ mφ ≤ O (TeV) [3]. The common origin of the radion and Kaluza-Klein gravitons means a sensitive to brane curvature terms. The radion couples with the matter via the trace of the energy momentum tensor. Therefore, the structure of the coupling of the radion with the SM fields is similar to that of the Higgs boson. Because the Higgs search is one of the main goals of the future collider experiments, the mixing of Higgs with another particle is of major importance, if it will

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