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BMy. CepHH 3. OH3HKA. ACTPOHOMHfl. 2022. №2
The Search for the Axion-Like Particles with Two Radio-Frequency Cavities
D. Salnikov1'2'", P. Satunin1'6, D.V. Kirpichnikov1, M. Fitkevich1'3 E-mail: asalnikov. dv16@physics. msu. ru, bsatunin@ms2. inr.ac. ru
1 Institute for Nuclear Research of the Russian Academy of Sciences. Moscow, 117312 Russia 2Lomonosov Moscow State University. Moscow 119991, Russia 3Moscow Institute of Physics and Technology. Moscow, Russia Received January 16, 2022
We discuss probing of the massive axion-like particles (ALPs) by two radio-frequency (RF) cylindrical cavities. We optimize the design the of these cavities to perform the effective strategy for the ALPs searches. In particular, we study the radiation pattern and energy density distribution of the ALP field produced in the cavity by two electromagnetic modes. We also discuss the sensitivity of the proposed experimental setup to examine ALPs.
Keywords: BSM physics, axion-like particles, LSW experiments.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 145-147.
Some Recent Results on Physics Beyond the Standard Model
Robert Shrock E-mail: robert.shrock@stonybrook.edu
C. N. Yang Institute for Theoretical Physics and Department of Physics and Astronomy Stony Brook University, Stony Brook, NY 11794, USA Received February 15, 2022
We discuss some recent results on physics beyond the Standard Model, including constraints on sterile neutrinos, charged lepton flavor violation, and baryon number violation.
Keywords: neutrino masses and mixing, baryon number violation, n?n oscillations.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 148-151.
Probing the Flavour of New Physics with Dipoles
Luiz Vale Silva E-mail: luizva@ific.uv.es
Instituto de Física Corpuscular, Universitat de Valencia Consejo Superior de Investigaciones Científicas, Parc Científic, E-46980 Paterna, Valencia, Spain Received January 16, 2022
Dipole interactions encode a rich variety of phenomena, such as radiative decays and Electric Dipole Moments (EDMs) in both quark and lepton sectors, which probe physics beyond the Standard Model (SM) up to very high energy scales. Due to renormalization, non-dipole operators mix into dipole ones, thus possibly generating observable effects that can be investigated by those same phenomena. I consider four-fermion contact interactions for which the leading order mixing into dipoles happens at two-loops (i.e., when mixing at one-loop vanishes) and for which this mixing can avoid small Yukawa couplings, and then explore the phenomenological consequences for flavour and CP Violation (CPV) coming from New Physics.
Keywords: standard model effective field theory, renormalization, radiative decay, electric dipole moment.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 152-155.
