Programme

O.17 -- Oral, VCTP-44

Date: Thursday, 1 August 2019

Time: 11:50 - 12:10

Kinetic mixing effect in noncommutative B-L theory

Lê Xuan Thuy (1,2), Duong Van Loi (3), Phung Van Dong (3)

(1) Vinh Long University Of Technology Education, 73 Nguyen Hue Street, Ward 2, Vinh Long City, Vinh Long Province, Vietnam ; (2) Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; (3) Phenikaa Institute for Advanced Study and Faculty of Basic Science, Phenikaa University, Hanoi 100000, Vietnam

The $SU(P)_L$ gauge symmetry for $P\geq 3$ can address the question of generation number due to anomaly cancellation, but it neither commutes nor closes algebraically with electric and baryon-minus-lepton charges. Hence, two $U(1)$ factors are required, yielding a complete gauge symmetry $SU(P)_L\otimes U(1)_X\otimes U(1)_N$ apart from the color group, which provides neutrino mass, dark matter and inflation. However, this gauge structure may present kinetic mixing effects associated to the $U(1)$ gauge fields and affect the electroweak precision test such as the $\rho$ parameter and $Z$ couplings. Additionally, it presents interesting mixing phenomena in the new neutral gauge sector. We will construct the model and examine the new physics effects in detail.

Presenter: Le Xuan Thuy