TAILIEUCHUNG - The process of e+e − → µ +µ - in the randall-sundrum model, supersymmetric model and unparticle physics

The process of e+e − → µ +µ − in models, namely Randall - Sundrum, Supersymmetric and Unparticle physics are studied in details. We calculate the cross-section for γ, Z, U, h, φ, h0, H0, A0 exchange when the e+, e −, µ +, µ − beams are polarized and unpolarized. The results show that the cross-section strongly depends on the exchange particles contributions and polarization of the initial and final beams. | Communications in Physics, Vol. 28, No. 1 (2018), pp. 29-40 DOI: THE PROCESS OF e+ e− → µ + µ − IN THE RANDALL - SUNDRUM MODEL, SUPERSYMMETRIC MODEL AND UNPARTICLE PHYSICS NGUYEN THI HAU1,† AND DAO THI LE THUY2 1 Hanoi University of Mining and Geology 18 Pho Vien, Duc Thang, Bac Tu Liem, Hanoi, Vietnam 2 Hanoi National University of Education 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam † E-mail: nguyenthihau@ Received 16 January 2018 Accepted for publication 01 February 2018 Published 26 March 2018 Abstract. The process of e+ e− → µ + µ − in models, namely Randall - Sundrum, Supersymmetric and Unparticle physics are studied in details. We calculate the cross-section for γ, Z, U, h, φ , h0 , H0 , A0 exchange when the e+ , e− , µ + , µ − beams are polarized and unpolarized. The results show that the cross-section strongly depends on the exchange particles contributions and polarization of the initial and final beams. Keywords: standard model, Randall Sundrum model, Supersymmetric model, unparticle physics. Classification numbers: . I. INTRODUCTION The standard model (SM) of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions. From time to time, the discoveries of the top quark (1995), the neutrino tau (2000), and the Higgs boson (2012) [1,2], which agree with theoretical predictions have given further credence to the SM. However, there are still many existing problems to be solved in the SM. To be able to fully explain such problems, extensions of the SM, which predict many new interesting physical phenomena at the high-energy scale, are studied. In this paper, we study extended models, namely Randall - Sundrum (RS), super-symmetric (SUSY) and unparticle physics (UP). The RS model [3] can solve the hierarchy problem by localizing all the SM particles on the IR brane. This model predicts two new particles beyond the SM. One is a spin-2 graviton and another is a scalar-field .

TỪ KHÓA LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.