Transverse emittance reduction in muon beams by ionization cooling

The MICE Collaboration

doi:10.1038/s41567-024-02547-4

Transverse emittance reduction in muon beams by ionization cooling

The MICE Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

Accelerated muon beams have been considered for the next-generation studies of high-energy lepton–antilepton collisions and neutrino oscillations. However, high-brightness muon beams have not yet been produced. The main challenge for muon acceleration and storage stems from the large phase-space volume occupied by the beam, derived from the production mechanism of muons through the decay of pions. The phase-space volume of the muon beam can be decreased through ionization cooling. Here we show that ionization cooling leads to a reduction in the transverse emittance of muon beams that traverse lithium hydride or liquid hydrogen absorbers in the Muon Ionization Cooling Experiment. Our results represent a substantial advance towards the realization of muon-based facilities that could operate at the energy and intensity frontiers.

Original language	English
Pages (from-to)	1558-1563
Number of pages	6
Journal	Nature Physics
Volume	20
Issue number	10
DOIs	https://doi.org/10.1038/s41567-024-02547-4
State	Published - Oct 2024
Externally published	Yes

Funding

The work described here was made possible by grants from the Science and Technology Facilities Council (UK); the Department of Energy and the National Science Foundation (USA); the Istituto Nazionale di Fisica Nucleare (Italy); the European Union under the European Union\u2019s Framework Programme 7 (AIDA project, grant agreement no. 262025; TIARA project, grant agreement no. 261905; and EuCARD); the Japan Society for the Promotion of Science; the National Research Foundation of Korea (no. NRF2016R1A5A1013277); the Ministry of Education, Science and Technological Development of the Republic of Serbia; the Institute of High Energy Physics/Chinese Academy of Sciences fund for collaboration between the People\u2019s Republic of China and the USA; and the Swiss National Science Foundation in the framework of the SCOPES programme. We gratefully acknowledge all sources of support. We are grateful for the support given to us by the staff of the STFC Rutherford Appleton and Daresbury laboratories. We acknowledge the use of the grid computing resources deployed and operated by GridPP in the UK (https://www.gridpp.ac.uk/). This publication is dedicated to the memory of V. Palladino and D. Summers who passed away while the data analysis from which the results presented here was being developed.

Funders	Funder number
National Science Foundation
Science and Technology Facilities Council
Japan Society for the Promotion of Science
Instituto Nazionale di Fisica Nucleare
EuCARD
European Commission
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
U.S. Department of Energy
Institute of High Energy Physics, Chinese Academy of Sciences
Chinese Academy of Sciences
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Sixth Framework Programme	261905, 262025
Sixth Framework Programme
National Research Foundation of Korea	NRF2016R1A5A1013277
National Research Foundation of Korea

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10.1038/s41567-024-02547-4

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@article{4f08c24135934b729cfd9cf3f9c9d4bd,

title = "Transverse emittance reduction in muon beams by ionization cooling",

abstract = "Accelerated muon beams have been considered for the next-generation studies of high-energy lepton–antilepton collisions and neutrino oscillations. However, high-brightness muon beams have not yet been produced. The main challenge for muon acceleration and storage stems from the large phase-space volume occupied by the beam, derived from the production mechanism of muons through the decay of pions. The phase-space volume of the muon beam can be decreased through ionization cooling. Here we show that ionization cooling leads to a reduction in the transverse emittance of muon beams that traverse lithium hydride or liquid hydrogen absorbers in the Muon Ionization Cooling Experiment. Our results represent a substantial advance towards the realization of muon-based facilities that could operate at the energy and intensity frontiers.",

author = "{The MICE Collaboration} and C. Heidt and Hanson, {G. G.} and Coney, {L. R.} and Sanders, {D. A.} and Cremaldi, {L. M.} and Y. Torun and P. Snopok and D. Rajaram and Mohayai, {T. A.} and Kaplan, {D. M.} and P. Hanlet and B. Freemire and P. Rubinov and M. Popovic and D. Neuffer and A. Liu and D. Bowring and Bross, {A. D.} and D. Adey and H. Witte and M. Palmer and S. Virostek and S. Prestemon and T. Luo and D. Li and A. Lambert and S. Gourlay and A. DeMello and Nebrensky, {J. J.} and P. Kyberd and Gardener, {R. B.S.} and M. Ellis and S. Wilbur and Smith, {P. J.} and V. Pec and E. Overton and J. Langlands and P. Hodgson and Booth, {C. N.} and Cobb, {J. H.} and Uchida, {M. A.} and J. Pasternak and S. Middleton and J. Martyniak and K. Long and A. Kurup and Jurj, {P. B.} and C. Hunt and P. Franchini and M. Tucker",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024. corrected publication 2024.",

year = "2024",

month = oct,

doi = "10.1038/s41567-024-02547-4",

language = "English",

volume = "20",

pages = "1558--1563",

journal = "Nature Physics",

issn = "1745-2473",

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number = "10",

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T1 - Transverse emittance reduction in muon beams by ionization cooling

AU - The MICE Collaboration

AU - Heidt, C.

AU - Hanson, G. G.

AU - Coney, L. R.

AU - Sanders, D. A.

AU - Cremaldi, L. M.

AU - Torun, Y.

AU - Snopok, P.

AU - Rajaram, D.

AU - Mohayai, T. A.

AU - Kaplan, D. M.

AU - Hanlet, P.

AU - Freemire, B.

AU - Rubinov, P.

AU - Popovic, M.

AU - Neuffer, D.

AU - Liu, A.

AU - Bowring, D.

AU - Bross, A. D.

AU - Adey, D.

AU - Witte, H.

AU - Palmer, M.

AU - Virostek, S.

AU - Prestemon, S.

AU - Luo, T.

AU - Li, D.

AU - Lambert, A.

AU - Gourlay, S.

AU - DeMello, A.

AU - Nebrensky, J. J.

AU - Kyberd, P.

AU - Gardener, R. B.S.

AU - Ellis, M.

AU - Wilbur, S.

AU - Smith, P. J.

AU - Pec, V.

AU - Overton, E.

AU - Langlands, J.

AU - Hodgson, P.

AU - Booth, C. N.

AU - Cobb, J. H.

AU - Uchida, M. A.

AU - Pasternak, J.

AU - Middleton, S.

AU - Martyniak, J.

AU - Long, K.

AU - Kurup, A.

AU - Jurj, P. B.

AU - Hunt, C.

AU - Franchini, P.

AU - Tucker, M.

PY - 2024/10

Y1 - 2024/10

N2 - Accelerated muon beams have been considered for the next-generation studies of high-energy lepton–antilepton collisions and neutrino oscillations. However, high-brightness muon beams have not yet been produced. The main challenge for muon acceleration and storage stems from the large phase-space volume occupied by the beam, derived from the production mechanism of muons through the decay of pions. The phase-space volume of the muon beam can be decreased through ionization cooling. Here we show that ionization cooling leads to a reduction in the transverse emittance of muon beams that traverse lithium hydride or liquid hydrogen absorbers in the Muon Ionization Cooling Experiment. Our results represent a substantial advance towards the realization of muon-based facilities that could operate at the energy and intensity frontiers.

AB - Accelerated muon beams have been considered for the next-generation studies of high-energy lepton–antilepton collisions and neutrino oscillations. However, high-brightness muon beams have not yet been produced. The main challenge for muon acceleration and storage stems from the large phase-space volume occupied by the beam, derived from the production mechanism of muons through the decay of pions. The phase-space volume of the muon beam can be decreased through ionization cooling. Here we show that ionization cooling leads to a reduction in the transverse emittance of muon beams that traverse lithium hydride or liquid hydrogen absorbers in the Muon Ionization Cooling Experiment. Our results represent a substantial advance towards the realization of muon-based facilities that could operate at the energy and intensity frontiers.

UR - http://www.scopus.com/inward/record.url?scp=85202488972&partnerID=8YFLogxK

U2 - 10.1038/s41567-024-02547-4

DO - 10.1038/s41567-024-02547-4

M3 - Article

AN - SCOPUS:85202488972

SN - 1745-2473

VL - 20

SP - 1558

EP - 1563

JO - Nature Physics

JF - Nature Physics

IS - 10

ER -

Transverse emittance reduction in muon beams by ionization cooling

Abstract

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