Precision Measurement of the Rate of Muon Capture in Hydrogen Gas and Determination of the Proton’s Pseudoscalar Coupling
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چکیده
*) Petersburg Nuclear Physics Institute, 188300, Gatchina, Russia Paul Scherrer Institute, CH-5232, Villigen, PSI, Switzerland University of California, Berkeley, and LBNL, Berkeley, CA 94720, USA University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA Universite Catholique de Louvain, B-1348, Louvain-la-Neuve, Belgium University of Kentucky, Lexington, KY 40506, USA Boston University, Boston, MA 02215, USA
منابع مشابه
Measurement of muon capture on the proton to 1% precision and determination of the pseudoscalar coupling gP.
The MuCap experiment at the Paul Scherrer Institute has measured the rate Λ(S) of muon capture from the singlet state of the muonic hydrogen atom to a precision of 1%. A muon beam was stopped in a time projection chamber filled with 10-bar, ultrapure hydrogen gas. Cylindrical wire chambers and a segmented scintillator barrel detected electrons from muon decay. Λ(S) is determined from the differ...
متن کاملMuon capture on the proton and deuteron
By measuring the lifetime of the negative muon in pure protium (H), the MuCap experiment determines the rate of muon capture on the proton, from which the proton’s pseudoscalar coupling gp may be inferred. A precision of 15% for gp has been published; this is a step along the way to a goal of 7%. This coupling can be calculated precisely from heavy baryon chiral perturbation theory and therefor...
متن کامل0 41 00 42 v 1 2 9 O ct 2 00 4 Precision muon lifetime and capture experiments at PSI
a * on behalf of the µLan † and µCap ‡ Collaborations. The µLan experiment at the Paul Scherrer Institute will measure the lifetime of the positive muon with a precision of 1 ppm, giving a value for the Fermi coupling constant GF at the level of 0.5 ppm. Meanwhile, by measuring the observed lifetime of the negative muon in pure hydrogen, the µCap experiment will determine the rate of muon captu...
متن کامل0 41 00 42 v 2 3 1 O ct 2 00 4 Precision muon lifetime and capture experiments at PSI
a * on behalf of the µLan † and µCap ‡ Collaborations. The µLan experiment at the Paul Scherrer Institute will measure the lifetime of the positive muon with a precision of 1 ppm, giving a value for the Fermi coupling constant GF at the level of 0.5 ppm. Meanwhile, by measuring the observed lifetime of the negative muon in pure hydrogen, the µCap experiment will determine the rate of muon captu...
متن کاملPROPOSAL Experiment no . Sheet 1 of 29 Title of proposed experiment : The Ortho - Para Transition Rate in Muonic Molecular
Members of the group (name, institution, status, per cent of time devoted to experiment) Beam time requested: 12-hr shifts Beam line/channel Polarized primary beam? 24 (initially) M9B no SUMMARY Sheet 2 of 29 The interpretation of muon capture experiments (both radiative and ordinary) in liquid hydrogen requires knowledge of the relative population of the muonic atomic and molecular states. In ...
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تاریخ انتشار 2008