Colliding muon beams at high energies represent a fascinating opportunity to probe the microscopic scale beyond the current reach of the LHC. Such beams could originate as tertiary products of a high intensity proton beam impinging on a target or, alternatively, exploiting very asymmetric collisions between positrons and electrons yielding directly muon pairs. The former production scheme requires a very effective phase-space cooling; a dedicated R&D program has been carried out addressing this issue both in the US and by the MICE collaboration. The latter scheme, also known as LEMMA (Low Emittance MuonS Accelerator), grants instead prompt muons with long lifetime, which gather into a beam with a very small emittance and thus ready to be further accelerated. In order to achieve that, a high brightness positron beam needs to be shot onto a target, producing collisions with the electrons of the target’s material at a center of mass energy only slightly above twice the mass of the muon; this corresponds to a positrons energy of about 45 GeV
LEMMA-TB: an experiment to measure the production of a low emittance muon beam / Amapane, N.; Antonelli, M.; Anulli, F.; Bacchetta, N.; Bartosik, N.; Bauce, M.; Bertolin, A.; Bianco, M.; Biino, C.; Blanco-Garcia, O. R.; Boscolo, M.; Braghieri, A.; Cappati, A.; Casaburo, F.; Casarsa, M.; Cavoto, G.; Charitonidis, N.; Colaleo, A.; Collamati, F.; Cotto, G.; Creanza, D.; Curatolo, C.; Deelen, N.; Gonella, F.; Hoh, S.; Iafrati, M.; Iacoangeli, F.; Kiani, B.; Lucchesi, D.; Mascagna, V.; Mersi, S.; Paccagnella, A.; Pastrone, N.; Pazzini, J.; Pelliccioni, M.; Ponzio, B.; Prest, M.; Riccardi, C.; Ricci, M.; Rossin, R.; Rotondo, M.; Salvini, P.; Sans Planell, O.; Sestini, L.; Silvestris, L.; Triossi, A.; Vai, I.; Vallazza, E.; Venditti, R.; Ventura, S.; Verwilligen, P.; Vitulo, P.; Zanetti, M.. - (2020).
LEMMA-TB: an experiment to measure the production of a low emittance muon beam
M. Bauce;F. Casaburo;G. Cavoto;F. Collamati;
2020
Abstract
Colliding muon beams at high energies represent a fascinating opportunity to probe the microscopic scale beyond the current reach of the LHC. Such beams could originate as tertiary products of a high intensity proton beam impinging on a target or, alternatively, exploiting very asymmetric collisions between positrons and electrons yielding directly muon pairs. The former production scheme requires a very effective phase-space cooling; a dedicated R&D program has been carried out addressing this issue both in the US and by the MICE collaboration. The latter scheme, also known as LEMMA (Low Emittance MuonS Accelerator), grants instead prompt muons with long lifetime, which gather into a beam with a very small emittance and thus ready to be further accelerated. In order to achieve that, a high brightness positron beam needs to be shot onto a target, producing collisions with the electrons of the target’s material at a center of mass energy only slightly above twice the mass of the muon; this corresponds to a positrons energy of about 45 GeVI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
