Publications by Alexey Boyarsky

Measurement of the 171Tm beta spectrum

The beta spectrum of the main transition of the 171Tm was measured using a double focalizing spectrometer. The instrument was lately improved in order to reduce its low energy threshold to 34 keV. We used the spectrometer to measure the energy end-point of ...

2023

The Forward Physics Facility at the High-Luminosity LHC

Lesya Shchutska, Yiming Li, Yi Zhang, Alexey Boyarsky, Raffaele Tito D'Agnolo, Enrico Bertuzzo, Wei Liu, Ji Hyun Kim, Zheng Wang, Jing Li, Wenjing Wu, Francesco Cerutti, Martin Bauer, Patrick Foldenauer, Karan Kumar, Saurabh Nangia, Emanuele Copello

High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located s ...

2022

Searches for new physics at SND@LHC

Lesya Shchutska, Alexey Boyarsky

SND@LHC is an approved experiment equipped to detect scatterings of neutrinos produced in the far-forward direction at the LHC, and aimed to measure their properties. In addition, the detector has a potential to search for new feebly interacting particles ...

SPRINGER2022

Exploring the potential of FCC-hh to search for particles from $B$ mesons

Lesya Shchutska, Alexey Boyarsky

The Future Circular Collider (FCC-hh) is a proposed successor of the Large Hadron Collider (LHC). FCC-hh would push both the energy and intensity frontiers of searches for new physics particles. In particular, due to higher energy and luminosity than at th ...

2022

The present and future status of heavy neutral leptons

Lesya Shchutska, Alexey Boyarsky, Oleg Ruchayskiy, Marco Drewes, Inar Timiryasov, Jean-Loup Tastet, Juraj Klaric

The existence of nonzero neutrino masses points to the likely existence of multiple Standard Model neutral fermions. When such states are heavy enough that they cannot be produced in oscillations, they are referred to as heavy neutral leptons (HNLs). In th ...

2022

New constraints on the mass of fermionic dark matter from dwarf spheroidal galaxies

Alexey Boyarsky, Diego Blas Temino, Kyrylo Bondarenko

Dwarf spheroidal galaxies are excellent systems to probe the nature of fermionic dark matter due to their high observed dark matter phase-space density. In this work, we review, revise, and improve upon previous phase-space considerations to obtain lower b ...

OXFORD UNIV PRESS2021

An allowed window for heavy neutral leptons below the kaon mass

Alexey Boyarsky, Oleg Ruchayskiy, Inar Timiryasov, Kyrylo Bondarenko, Juraj Klaric

The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, as well as the origin of the matter-antimatter asymmetry in the Universe. The ...

SPRINGER2021

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When the Dark Matter mass is below the eV-scale, its cosmological occupation number exceeds the ones of photons from the cosmic microwave background as well as of relic neutrinos. If such Dark Matter decays to pairs of neutrinos, it implies that experiment ...

IOP PUBLISHING LTD2021

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With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and astrophysics community for exploring the physics of light and feebl ...

2021

SND@LHC - Scattering and Neutrino Detector at the LHC

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Guido Haefeli, Elena Graverini, Alexey Boyarsky, Ettore Zaffaroni, Sun Hee Kim, Federico Leo Redi, Evgenii Shmanin, Nikolaos Charitonidis, Carina Trippl, Serhii Cholak, Jean-Loup Tastet, Ana Bárbara Rodrigues Cavalcante, Anton Petrov, Andrea Montanari

SND@LHC is a proposed, compact and stand-alone experiment to perform measurements with neutrinos produced at the LHC in an hitherto unexplored pseudo-rapidity region of

7.2 < \eta < 8.6

, complementary to all the other experiments at the LHC. The experime ...

CERN2021

Alexey Boyarsky

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Measurement of the 171Tm beta spectrum

The Forward Physics Facility at the High-Luminosity LHC

Searches for new physics at SND@LHC

Exploring the potential of FCC-hh to search for particles from $B$ mesons

The present and future status of heavy neutral leptons

New constraints on the mass of fermionic dark matter from dwarf spheroidal galaxies

An allowed window for heavy neutral leptons below the kaon mass

SND@LHC - Scattering and Neutrino Detector at the LHC

Measurement of the 171Tm beta spectrum

New constraints on the mass of fermionic dark matter from dwarf spheroidal galaxies

The Forward Physics Facility at the High-Luminosity LHC

Searches for new physics at SND@LHC

An allowed window for heavy neutral leptons below the kaon mass

Exploring the potential of FCC-hh to search for particles from $B$ mesons

SND@LHC - Scattering and Neutrino Detector at the LHC

The present and future status of heavy neutral leptons