The muon gyromagnetic anomaly aµ has been measured with a precision δaµ/aµ = 540 ppb using magic-momentum muon decays recorded up to 2001 by the E821 BNL experiment. Two projects aim at significantly improving that experimental precision: the E989 Collaboration at Fermilab plans to collect 21 times the BNL statistics and to improve by a factor four the uncertainty, the E34 Collaboration is designing a new experiment at J-PARC with a novel approach based on the production, injection and storage of ultra-cold low-energy muons. E34 aims at matching the BNL precision in a first phase, and to provide a significantly higher precision measurement in a second phase.

Muon g − 2, current experimental status and future prospects

Lusiani A.
2018

Abstract

The muon gyromagnetic anomaly aµ has been measured with a precision δaµ/aµ = 540 ppb using magic-momentum muon decays recorded up to 2001 by the E821 BNL experiment. Two projects aim at significantly improving that experimental precision: the E989 Collaboration at Fermilab plans to collect 21 times the BNL statistics and to improve by a factor four the uncertainty, the E34 Collaboration is designing a new experiment at J-PARC with a novel approach based on the production, injection and storage of ultra-cold low-energy muons. E34 aims at matching the BNL precision in a first phase, and to provide a significantly higher precision measurement in a second phase.
2018
Settore FIS/01 - Fisica Sperimentale
Cracow Epiphany Conference On Advances in Heavy Flavour Physics
Krakow, POLAND
JAN 09-12, 2018
Cracow Epiphany Conference On Advances in Heavy Flavour Physics
Jagellonian University
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/94275
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