TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.8.4.071
TI  - Phase space compression of a positive muon beam in two spatial dimensions
PY  - 2025/10/20
UR  - https://www.scipost.org/SciPostPhysCore.8.4.071
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 8
IS  - 4
SP  - 071
A1  - Antognini, Aldo
AU  - Ayres, Nicholas J.
AU  - Belosevic, Ivana
AU  - Bondar, Vira
AU  - Eggenberger, Andreas
AU  - Hildebrandt, Malte
AU  - Iwai, Ryoto
AU  - Kirch, Klaus
AU  - Knecht, Andreas
AU  - Lospalluto, Giuseppe
AU  - Nuber, Jonas
AU  - Papa, Angela
AU  - Sakurai, Mikio
AU  - Solovyev, Ivan
AU  - Taqqu, David
AU  - Yan, Taylor
AB  - We present the first demonstration of simultaneous phase space compression in two spatial dimensions of a positive muon beam, the first stage of the novel high-brightness muon beam under development by the muCool collaboration at the Paul Scherrer Institute. The keV-energy, sub-mm size beam would enable a factor $10^5$ improvement in brightness for precision $\mu$SR, and atomic and particle physics measurements with positive muons. This compression is achieved within a cryogenic helium gas target with a strong density gradient, placed in a homogeneous magnetic field, under the influence of a complex electric field. In the next phase, the muon beam will be extracted into vacuum.
ER  -

@Article{10.21468/SciPostPhysCore.8.4.071,
	title={{Phase space compression of a positive muon beam in two spatial dimensions}},
	author={A. Antognini and N. J. Ayres and I. Belosevic and V. Bondar and A. Eggenberger and M. Hildebrandt and R. Iwai and K. Kirch and A. Knecht and G. Lospalluto and J. Nuber and A. Papa and M. Sakurai and I. Solovyev and D. Taqqu and T. Yan},
	journal={SciPost Phys. Core},
	volume={8},
	pages={071},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCore.8.4.071},
	url={https://scipost.org/10.21468/SciPostPhysCore.8.4.071},
}

Authors / Affiliations: mappings to Contributors and Organizations

• ^{1 2} Aldo Antognini,
• ² Nicholas J. Ayres,
• ² Ivana Belosevic,
• ² Vira Bondar,
• ² Andreas Eggenberger,
• ¹ Malte Hildebrandt,
• ² Ryoto Iwai,
• ^{1 2} Klaus Kirch,
• ¹ Andreas Knecht,
• ² Giuseppe Lospalluto,
• ¹ Jonas Nuber,
• ^{1 3 4} Angela Papa,
• ² Mikio Sakurai,
• ^{2 5} Ivan Solovyev,
• ¹ David Taqqu,
• ^{2 5} Taylor Yan

• ¹ Paul Scherrer Institute [PSI]
• ² Eidgenössische Technische Hochschule Zürich / Swiss Federal Institute of Technology in Zurich (ETH) [ETH Zurich]
• ³ Università di Pisa / University of Pisa [UniPi]
• ⁴ INFN Sezione di Pisa
• ⁵ มหาวิทยาลัยเทคโนโลยีสุรนารี / Suranaree University of Technology [SUT]