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Abstract: Proton decay experiments typically constrain baryon number violation to the scale of grand unified theories. From a phenomenological point of view, this makes direct probing of the associated new resonances impossible. It has, however, been known that certain specific patterns of baryon and lepton number violation can suppress proton decay by multiple powers of the masses of the heavy resonances involved, opening the possibility that the observed limits on the proton lifetime are consistent with baryon number violating physics at energy scales much lower than that of grand unification. In this talk, I will show that theories which violate baryon number by one unit, ΔB=−1, and lepton number by three units, ΔL=−3, despite stringent limits on the predicted p→ e+/μ+ν ν mode from the Super-Kamiokande experiment, are consistent with BNV at the TeV scale. Using a representative model, I will also show that realistic proton lifetimes for ΔB=−1 and ΔL=−3 are some 10 orders of magnitude beyond upcoming proton decay experiments like Hyper-Kamiokande. However, ΔB=−1 and ΔL=−3 theories offer unique signatures of baryon number violation that can be probed both with currently available LHC data and with the upcoming High-Luminosity LHC, making the LHC a much more powerful probe of this particular pattern of B and L violation compared to proton decay experiments.
Biography：Dr. Amit Bhoonah is a postdoctoral fellow at the University of Pittsburgh. He earned his PhD at Queen's University. After completing a postdoc at Colorado State University, he moved to the University of Pittsburgh. This fall, he will be moving to Jeonbuk National University in South Korea. His research focuses on astrophysical probes of dark matter, particularly gas clouds in the galactic center; high-precision atomic spectroscopy for dark matter detection; neutrino mass model building; and low-scale baryon and lepton number violation.
Alternatively online link : https://meeting.tencent.com/dm/xpy5ZCBqxGr4
ID：978887637