Improved Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant

Simple item page
dc.creatorMuLan Collaboration
dc.creatorChitwood, D. B.
dc.creatorBanks, T. I.
dc.creatorBarnes, M. J.
dc.creatorBattu, S.
dc.creatorCarey, R. M.
dc.creatorCheekatmalla, S.
dc.creatorClayton, S. M.
dc.creatorCrnkovic, J.
dc.creatorCrowe, K. M.
dc.creatorDebevec, P. T.
dc.creatorDhamija, S.
dc.creatorEarle, W.
dc.creatorGafarov, A.
dc.creatorGiovanetti, K.
dc.creatorGorringe, T. P.
dc.creatorGray, F. E.
dc.creatorHance, M.
dc.creatorHertzog, D. W.
dc.creatorHare, M. F.
dc.creatorKammel, P.
dc.creatorKiburg, B.
dc.creatorKunkle, J.
dc.creatorLauss, B.
dc.creatorLogashenko, I.
dc.creatorLynch, K. R.
dc.creatorMcNabb, R.
dc.creatorMiller, J. P.
dc.creatorMulhauser, F.
dc.creatorOnderwater, C. J. G.
dc.creatorOzben, C. S.
dc.creatorPeng, Q.
dc.creatorPolly, C. C.
dc.creatorRath, S.
dc.creatorRoberts, B. L.
dc.creatorTishchenko, V.
dc.creatorWait, G. D.
dc.creatorWasserman, J.
dc.creatorWebber, D. M.
dc.creatorWinter, P.
dc.creatorZolnierczuk, P. A.
dc.date2007-04-16
dc.date2008-02-08
dc.date.accessioned2026-07-07T10:59:35Z
dc.date.available2026-07-07T10:59:35Z
dc.descriptionThe mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector array. The result, tau_mu = 2.197013(24) us, is in excellent agreement with the previous world average. The new world average tau_mu = 2.197019(21) us determines the Fermi constant G_F = 1.166371(6) x 10^-5 GeV^-2 (5 ppm). Additionally, the precision measurement of the positive muon lifetime is needed to determine the nucleon pseudoscalar coupling g_P.
dc.descriptionAs published version (PRL, July 2007)
dc.identifierhttps://arxiv.org/abs/0704.1981
dc.identifierhttp://arxiv.org/abs/0704.1981
dc.identifierPhys.Rev.Lett.99:032001,2007
dc.identifierdoi:10.1103/PhysRevLett.99.032001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187452
dc.subjectHigh Energy Physics - Experiment
dc.subjectNuclear Experiment
dc.titleImproved Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant
dc.typetext

Files

Collections

arXiv