The present and future status of heavy neutral leptons

Asli M Abdullahi; Pablo Barham alzás; Brian Batell; James Beacham; Alexey Boyarsky; Saneli Carbajal; Animesh Chatterjee; José I Crespo-Anadón; Frank F Deppisch; Albert De roeck; Marco Drewes; Alberto Martin gago; Rebeca Gonzalez suarez; Evgueni Goudzovski; Athanasios Hatzikoutelis; Josu Hernandez-Garcia; Matheus Hostert; Marco Hufnagel; Philip Ilten; Alexander Izmaylov; Kevin J Kelly; Juraj Klarić; Joachim Kopp; Suchita Kulkarni; Mathieu Lamoureux; Gaia Lanfranchi; Jacobo López-Pavón; Oleksii Mikulenko; Michael Mooney; Miha Nemevšek; Maksym Ovchynnikov; Silvia Pascoli; Ryan Plestid; Mohamed Rashad darwish; Federico Leo redi; Oleg Ruchayskiy; Richard Ruiz; Mikhail Shaposhnikov; Lesya Shchutska; Ian M Shoemaker; Robert Shrock; Alex Sousa; Nick Van remortel; Vsevolod Syvolap; Volodymyr Takhistov; Jean-loup Tastet; Inar Timiryasov; Aaron C Vincent; Jaehoon Yu

doi:10.1088/1361-6471/ac98f9

The present and future status of heavy neutral leptons

Asli M Abdullahi, Pablo Barham alzás, Brian Batell, James Beacham, Alexey Boyarsky, Saneli Carbajal, Animesh Chatterjee, José I Crespo-Anadón, Frank F Deppisch, Albert De roeck, Marco Drewes, Alberto Martin gago, Rebeca Gonzalez suarez, Evgueni Goudzovski, Athanasios Hatzikoutelis, Josu Hernandez-Garcia, Matheus Hostert, Marco Hufnagel, Philip Ilten, Alexander IzmaylovKevin J Kelly, Juraj Klarić, Joachim Kopp, Suchita Kulkarni, Mathieu Lamoureux, Gaia Lanfranchi, Jacobo López-Pavón, Oleksii Mikulenko, Michael Mooney, Miha Nemevšek, Maksym Ovchynnikov, Silvia Pascoli, Ryan Plestid, Mohamed Rashad darwish, Federico Leo redi, Oleg Ruchayskiy, Richard Ruiz, Mikhail Shaposhnikov, Lesya Shchutska, Ian M Shoemaker, Robert Shrock, Alex Sousa, Nick Van remortel, Vsevolod Syvolap, Volodymyr Takhistov, Jean-loup Tastet, Inar Timiryasov, Aaron C Vincent, Jaehoon Yu

Physics and Astronomy

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Abstract

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 this white paper, we discuss the present experimental status of HNLs including colliders, beta decay, accelerators, as well as astrophysical and cosmological impacts. We discuss the importance of continuing to search for HNLs, and its potential impact on our understanding of key fundamental questions, and additionally we outline the future prospects for next-generation future experiments or upcoming accelerator run scenarios.

Original language	English
Article number	020501
Number of pages	101
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	50
Issue number	2
Early online date	20 Jan 2023
DOIs	https://doi.org/10.1088/1361-6471/ac98f9
Publication status	Published - Feb 2023

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Abdullahi, A. M., Barham alzás, P., Batell, B., Beacham, J., Boyarsky, A., Carbajal, S., Chatterjee, A., Crespo-Anadón, J. I., Deppisch, F. F., De roeck, A., Drewes, M., Martin gago, A., Gonzalez suarez, R., Goudzovski, E., Hatzikoutelis, A., Hernandez-Garcia, J., Hostert, M., Hufnagel, M., Ilten, P., ... Yu, J. (2023). The present and future status of heavy neutral leptons. Journal of Physics G: Nuclear and Particle Physics, 50 (2), Article 020501. https://doi.org/10.1088/1361-6471/ac98f9

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title = "The present and future status of heavy neutral leptons",

abstract = "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 this white paper, we discuss the present experimental status of HNLs including colliders, beta decay, accelerators, as well as astrophysical and cosmological impacts. We discuss the importance of continuing to search for HNLs, and its potential impact on our understanding of key fundamental questions, and additionally we outline the future prospects for next-generation future experiments or upcoming accelerator run scenarios.",

author = "Abdullahi, {Asli M} and {Barham alz{\'a}s}, Pablo and Brian Batell and James Beacham and Alexey Boyarsky and Saneli Carbajal and Animesh Chatterjee and Crespo-Anad{\'o}n, {Jos{\'e} I} and Deppisch, {Frank F} and {De roeck}, Albert and Marco Drewes and {Martin gago}, Alberto and {Gonzalez suarez}, Rebeca and Evgueni Goudzovski and Athanasios Hatzikoutelis and Josu Hernandez-Garcia and Matheus Hostert and Marco Hufnagel and Philip Ilten and Alexander Izmaylov and Kelly, {Kevin J} and Juraj Klari{\'c} and Joachim Kopp and Suchita Kulkarni and Mathieu Lamoureux and Gaia Lanfranchi and Jacobo L{\'o}pez-Pav{\'o}n and Oleksii Mikulenko and Michael Mooney and Miha Nemev{\v s}ek and Maksym Ovchynnikov and Silvia Pascoli and Ryan Plestid and {Rashad darwish}, Mohamed and {Leo redi}, Federico and Oleg Ruchayskiy and Richard Ruiz and Mikhail Shaposhnikov and Lesya Shchutska and Shoemaker, {Ian M} and Robert Shrock and Alex Sousa and {Van remortel}, Nick and Vsevolod Syvolap and Volodymyr Takhistov and Jean-loup Tastet and Inar Timiryasov and Vincent, {Aaron C} and Jaehoon Yu",

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Abdullahi, AM, Barham alzás, P, Batell, B, Beacham, J, Boyarsky, A, Carbajal, S, Chatterjee, A, Crespo-Anadón, JI, Deppisch, FF, De roeck, A, Drewes, M, Martin gago, A, Gonzalez suarez, R, Goudzovski, E, Hatzikoutelis, A, Hernandez-Garcia, J, Hostert, M, Hufnagel, M, Ilten, P, Izmaylov, A, Kelly, KJ, Klarić, J, Kopp, J, Kulkarni, S, Lamoureux, M, Lanfranchi, G, López-Pavón, J, Mikulenko, O, Mooney, M, Nemevšek, M, Ovchynnikov, M, Pascoli, S, Plestid, R, Rashad darwish, M, Leo redi, F, Ruchayskiy, O, Ruiz, R, Shaposhnikov, M, Shchutska, L, Shoemaker, IM, Shrock, R, Sousa, A, Van remortel, N, Syvolap, V, Takhistov, V, Tastet, J, Timiryasov, I, Vincent, AC & Yu, J 2023, 'The present and future status of heavy neutral leptons', Journal of Physics G: Nuclear and Particle Physics, vol. 50 , no. 2, 020501. https://doi.org/10.1088/1361-6471/ac98f9

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T1 - The present and future status of heavy neutral leptons

AU - Abdullahi, Asli M

AU - Barham alzás, Pablo

AU - Batell, Brian

AU - Beacham, James

AU - Boyarsky, Alexey

AU - Carbajal, Saneli

AU - Chatterjee, Animesh

AU - Crespo-Anadón, José I

AU - Deppisch, Frank F

AU - De roeck, Albert

AU - Drewes, Marco

AU - Martin gago, Alberto

AU - Gonzalez suarez, Rebeca

AU - Goudzovski, Evgueni

AU - Hatzikoutelis, Athanasios

AU - Hernandez-Garcia, Josu

AU - Hostert, Matheus

AU - Hufnagel, Marco

AU - Ilten, Philip

AU - Izmaylov, Alexander

AU - Kelly, Kevin J

AU - Klarić, Juraj

AU - Kopp, Joachim

AU - Kulkarni, Suchita

AU - Lamoureux, Mathieu

AU - Lanfranchi, Gaia

AU - López-Pavón, Jacobo

AU - Mikulenko, Oleksii

AU - Mooney, Michael

AU - Nemevšek, Miha

AU - Ovchynnikov, Maksym

AU - Pascoli, Silvia

AU - Plestid, Ryan

AU - Rashad darwish, Mohamed

AU - Leo redi, Federico

AU - Ruchayskiy, Oleg

AU - Ruiz, Richard

AU - Shaposhnikov, Mikhail

AU - Shchutska, Lesya

AU - Shoemaker, Ian M

AU - Shrock, Robert

AU - Sousa, Alex

AU - Van remortel, Nick

AU - Syvolap, Vsevolod

AU - Takhistov, Volodymyr

AU - Tastet, Jean-loup

AU - Timiryasov, Inar

AU - Vincent, Aaron C

AU - Yu, Jaehoon

PY - 2023/2

Y1 - 2023/2

N2 - 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 this white paper, we discuss the present experimental status of HNLs including colliders, beta decay, accelerators, as well as astrophysical and cosmological impacts. We discuss the importance of continuing to search for HNLs, and its potential impact on our understanding of key fundamental questions, and additionally we outline the future prospects for next-generation future experiments or upcoming accelerator run scenarios.

AB - 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 this white paper, we discuss the present experimental status of HNLs including colliders, beta decay, accelerators, as well as astrophysical and cosmological impacts. We discuss the importance of continuing to search for HNLs, and its potential impact on our understanding of key fundamental questions, and additionally we outline the future prospects for next-generation future experiments or upcoming accelerator run scenarios.

U2 - 10.1088/1361-6471/ac98f9

DO - 10.1088/1361-6471/ac98f9

M3 - Article

SN - 0954-3899

VL - 50

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 2

M1 - 020501

ER -

The present and future status of heavy neutral leptons

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