Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP

V. A. Andreev; T. I. Banks; T. A. Case; D. B. Chitwood; S. M. Clayton; K. M. Crowe; J. Deutsch; J. Egger; S. J. Freedman; V. A. Ganzha; T. Gorringe; F. E. Gray; D. W. Hertzog; M. Hildebrandt; P. Kammel; B. Kiburg; S. Knaack; P. A. Kravtsov; A. G. Krivshich; B. Lauss; K. L. Lynch; E. M. Maev; O. E. Maev; F. Mulhauser; C. S. Özben; C. Petitjean; G. E. Petrov; R. Prieels; G. N. Schapkin; G. G. Semenchuk; M. A. Soroka; V. Tishchenko; A. A. Vasilyev; A. A. Vorobyov; M. E. Vznuzdaev; P. Winter

doi:10.1103/PhysRevLett.99.032002

Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP

V. A. Andreev, T. I. Banks, T. A. Case, D. B. Chitwood, S. M. Clayton, K. M. Crowe, J. Deutsch, J. Egger, S. J. Freedman, V. A. Ganzha, T. Gorringe, F. E. Gray, D. W. Hertzog, M. Hildebrandt, P. Kammel, B. Kiburg, S. Knaack, P. A. Kravtsov, A. G. Krivshich, B. LaussK. L. Lynch, E. M. Maev, O. E. Maev, F. Mulhauser, C. S. Özben, C. Petitjean, G. E. Petrov, R. Prieels, G. N. Schapkin, G. G. Semenchuk, M. A. Soroka, V. Tishchenko, A. A. Vasilyev, A. A. Vorobyov, M. E. Vznuzdaev, P. Winter

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Abstract

The rate of nuclear muon capture by the proton has been measured using a new technique based on a time projection chamber operating in ultraclean, deuterium-depleted hydrogen gas, which is key to avoiding uncertainties from muonic molecule formation. The capture rate from the hyperfine singlet ground state of the μp atom was obtained from the difference between the μ- disappearance rate in hydrogen and the world average for the μ+ decay rate, yielding ΛS=725.0±17.4s-1, from which the induced pseudoscalar coupling of the nucleon, gP(q2=-0.88mμ2)=7.3±1.1, is extracted.

Original language	English (US)
Article number	032002
Journal	Physical Review Letters
Volume	99
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.99.032002
State	Published - Jul 16 2007
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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Andreev, V. A., Banks, T. I., Case, T. A., Chitwood, D. B., Clayton, S. M., Crowe, K. M., Deutsch, J., Egger, J., Freedman, S. J., Ganzha, V. A., Gorringe, T., Gray, F. E., Hertzog, D. W., Hildebrandt, M., Kammel, P., Kiburg, B., Knaack, S., Kravtsov, P. A., Krivshich, A. G., ... Winter, P. (2007). Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP. Physical Review Letters, 99(3), Article 032002. https://doi.org/10.1103/PhysRevLett.99.032002

Andreev, VA, Banks, TI, Case, TA, Chitwood, DB, Clayton, SM, Crowe, KM, Deutsch, J, Egger, J, Freedman, SJ, Ganzha, VA, Gorringe, T, Gray, FE, Hertzog, DW, Hildebrandt, M, Kammel, P, Kiburg, B, Knaack, S, Kravtsov, PA, Krivshich, AG, Lauss, B, Lynch, KL, Maev, EM, Maev, OE, Mulhauser, F, Özben, CS, Petitjean, C, Petrov, GE, Prieels, R, Schapkin, GN, Semenchuk, GG, Soroka, MA, Tishchenko, V, Vasilyev, AA, Vorobyov, AA, Vznuzdaev, ME & Winter, P 2007, 'Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP', Physical Review Letters, vol. 99, no. 3, 032002. https://doi.org/10.1103/PhysRevLett.99.032002

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title = "Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP",

abstract = "The rate of nuclear muon capture by the proton has been measured using a new technique based on a time projection chamber operating in ultraclean, deuterium-depleted hydrogen gas, which is key to avoiding uncertainties from muonic molecule formation. The capture rate from the hyperfine singlet ground state of the μp atom was obtained from the difference between the μ- disappearance rate in hydrogen and the world average for the μ+ decay rate, yielding ΛS=725.0±17.4s-1, from which the induced pseudoscalar coupling of the nucleon, gP(q2=-0.88mμ2)=7.3±1.1, is extracted.",

author = "Andreev, {V. A.} and Banks, {T. I.} and Case, {T. A.} and Chitwood, {D. B.} and Clayton, {S. M.} and Crowe, {K. M.} and J. Deutsch and J. Egger and Freedman, {S. J.} and Ganzha, {V. A.} and T. Gorringe and Gray, {F. E.} and Hertzog, {D. W.} and M. Hildebrandt and P. Kammel and B. Kiburg and S. Knaack and Kravtsov, {P. A.} and Krivshich, {A. G.} and B. Lauss and Lynch, {K. L.} and Maev, {E. M.} and Maev, {O. E.} and F. Mulhauser and {\"O}zben, {C. S.} and C. Petitjean and Petrov, {G. E.} and R. Prieels and Schapkin, {G. N.} and Semenchuk, {G. G.} and Soroka, {M. A.} and V. Tishchenko and Vasilyev, {A. A.} and Vorobyov, {A. A.} and Vznuzdaev, {M. E.} and P. Winter",

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doi = "10.1103/PhysRevLett.99.032002",

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T1 - Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP

AU - Andreev, V. A.

AU - Banks, T. I.

AU - Case, T. A.

AU - Chitwood, D. B.

AU - Clayton, S. M.

AU - Crowe, K. M.

AU - Deutsch, J.

AU - Egger, J.

AU - Freedman, S. J.

AU - Ganzha, V. A.

AU - Gorringe, T.

AU - Gray, F. E.

AU - Hertzog, D. W.

AU - Hildebrandt, M.

AU - Kammel, P.

AU - Kiburg, B.

AU - Knaack, S.

AU - Kravtsov, P. A.

AU - Krivshich, A. G.

AU - Lauss, B.

AU - Lynch, K. L.

AU - Maev, E. M.

AU - Maev, O. E.

AU - Mulhauser, F.

AU - Özben, C. S.

AU - Petitjean, C.

AU - Petrov, G. E.

AU - Prieels, R.

AU - Schapkin, G. N.

AU - Semenchuk, G. G.

AU - Soroka, M. A.

AU - Tishchenko, V.

AU - Vasilyev, A. A.

AU - Vorobyov, A. A.

AU - Vznuzdaev, M. E.

AU - Winter, P.

PY - 2007/7/16

Y1 - 2007/7/16

N2 - The rate of nuclear muon capture by the proton has been measured using a new technique based on a time projection chamber operating in ultraclean, deuterium-depleted hydrogen gas, which is key to avoiding uncertainties from muonic molecule formation. The capture rate from the hyperfine singlet ground state of the μp atom was obtained from the difference between the μ- disappearance rate in hydrogen and the world average for the μ+ decay rate, yielding ΛS=725.0±17.4s-1, from which the induced pseudoscalar coupling of the nucleon, gP(q2=-0.88mμ2)=7.3±1.1, is extracted.

AB - The rate of nuclear muon capture by the proton has been measured using a new technique based on a time projection chamber operating in ultraclean, deuterium-depleted hydrogen gas, which is key to avoiding uncertainties from muonic molecule formation. The capture rate from the hyperfine singlet ground state of the μp atom was obtained from the difference between the μ- disappearance rate in hydrogen and the world average for the μ+ decay rate, yielding ΛS=725.0±17.4s-1, from which the induced pseudoscalar coupling of the nucleon, gP(q2=-0.88mμ2)=7.3±1.1, is extracted.

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JF - Physical Review Letters

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Measurement of the muon capture rate in hydrogen gas and determination of the proton's pseudoscalar coupling gP

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