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arxiv: 2310.05669 · v2 · pith:DKPXJ7MJnew · submitted 2023-10-09 · ⚛️ physics.acc-ph · hep-ex

Transverse Emittance Reduction in Muon Beams by Ionization Cooling

The MICE Collaboration: M. Bogomilov , R. Tsenov , G. Vankova-Kirilova , Y. P. Song , J. Y. Tang , Z. H. Li , R. Bertoni , M. Bonesini
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F. Chignoli R. Mazza A. de Bari D. Orestano L. Tortora Y. Kuno H. Sakamoto A. Sato S. Ishimoto M. Chung C. K. Sung F. Filthaut M. Fedorov D. Jokovic D. Maletic M. Savic N. Jovancevic J. Nikolov M. Vretenar S. Ramberger R. Asfandiyarov A. Blondel F. Drielsma Y. Karadzhov S. Boyd J. R. Greis T. Lord C. Pidcott I. Taylor G. Charnley N. Collomb K. Dumbell A. Gallagher A. Grant S. Griffiths T. Hartnett B. Martlew A. Moss A. Muir I. Mullacrane A. Oates P. Owens G. Stokes P. Warburton C. White D. Adams V. Bayliss J. Boehm T. W. Bradshaw C. Brown M. Courthold J. Govans T. Hayler M. Hills J. B. Lagrange C. Macwaters A. Nichols R. Preece S. Ricciardi C. Rogers T. Stanley J. Tarrant M. Tucker S. Watson A. Wilson R. Bayes J. C. Nugent F. J. P. Soler G. T. Chatzitheodoridis A. J. Dick K. Ronald C. G. Whyte A. R. Young R. Gamet P. Cooke V. J. Blackmore D. Colling A. Dobbs P. Dornan P. Franchini C. Hunt P. B. Jurj A. Kurup K. Long J. Martyniak S. Middleton J. Pasternak M. A. Uchida J. H. Cobb C. N. Booth P. Hodgson J. Langlands E. Overton V. Pec P. J. Smith S. Wilbur M. Ellis R. B. S. Gardener P. Kyberd J. J. Nebrensky A. DeMello S. Gourlay A. Lambert D. Li T. Luo S. Prestemon S. Virostek M. Palmer H. Witte D. Adey A. D. Bross D. Bowring A. Liu D. Neuffer M. Popovic P. Rubinov B. Freemire P. Hanlet D. M. Kaplan T. A. Mohayai D. Rajaram P. Snopok Y. Torun L. M. Cremaldi D. A. Sanders L. R. Coney G. G. Hanson C. Heidt
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classification ⚛️ physics.acc-ph hep-ex
keywords muonbeamscoolingionizationbeambeencollisionsemittance
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Accelerated muon beams have been considered for 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 muon production mechanism through the decay of pions from proton collisions. Ionization cooling is the technique proposed to decrease the muon beam phase-space volume. Here we demonstrate a clear signal of ionization cooling through the observation of transverse emittance reduction in beams that traverse lithium hydride or liquid hydrogen absorbers in the Muon Ionization Cooling Experiment (MICE). The measurement is well reproduced by the simulation of the experiment and the theoretical model. The results shown here represent a substantial advance towards the realization of muon-based facilities that could operate at the energy and intensity frontiers.

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