Measurement of the branching ratio and form factor of KL→μ+μ- γ

M. B. Spencer; K. Arisaka; D. Roberts; W. Slater; M. Weaver; R. A. Briere; E. Cheu; D. A. Harris; P. Krolak; K. S. McFarland; A. Roodman; B. Schwingenheuer; S. V. Somalwar; Y. W. Wah; B. Winstein; R. Winston; A. R. Barker; E. C. Swallow; G. J. Bock; R. Coleman; M. Crisler; J. Enagonio; R. Ford; Y. B. Hsiung; D. A. Jensen; E. Ramberg; R. Tschirhart; E. M. Collins; G. D. Gollin; T. Nakaya; T. Yamanaka; P. Gu; P. Haas; W. P. Hogan; S. K. Kim; J. N. Matthews; S. S. Myung; S. Schnetzer; G. B. Thomson; Y. Zou

doi:10.1103/PhysRevLett.74.3323

Measurement of the branching ratio and form factor of KL→μ+μ- γ

M. B. Spencer, K. Arisaka, D. Roberts, W. Slater, M. Weaver, R. A. Briere, E. Cheu, D. A. Harris, P. Krolak, K. S. McFarland, A. Roodman, B. Schwingenheuer, S. V. Somalwar, Y. W. Wah, B. Winstein, R. Winston, A. R. Barker, E. C. Swallow, G. J. Bock, R. ColemanM. Crisler, J. Enagonio, R. Ford, Y. B. Hsiung, D. A. Jensen, E. Ramberg, R. Tschirhart, E. M. Collins, G. D. Gollin, T. Nakaya, T. Yamanaka, P. Gu, P. Haas, W. P. Hogan, S. K. Kim, J. N. Matthews, S. S. Myung, S. Schnetzer, G. B. Thomson, Y. Zou

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18 Scopus citations

Abstract

We report on a measurement of the decay KL→μ+μ-γ from Fermilab experiment E799. We observe 207 candidate signal events with an estimated background of 10.5±4.0 events and establish B(KL→μ+μ-γ)=[3.23±0.23(stat)±0.19(syst)] ×10-7. This provides the first measurement of the Kγγ* form factor in the muonic Dalitz decay mode of the KL.

Original language	English (US)
Pages (from-to)	3323-3326
Number of pages	4
Journal	Physical review letters
Volume	74
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.74.3323
State	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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Spencer, M. B., Arisaka, K., Roberts, D., Slater, W., Weaver, M., Briere, R. A., Cheu, E., Harris, D. A., Krolak, P., McFarland, K. S., Roodman, A., Schwingenheuer, B., Somalwar, S. V., Wah, Y. W., Winstein, B., Winston, R., Barker, A. R., Swallow, E. C., Bock, G. J., ... Zou, Y. (1995). Measurement of the branching ratio and form factor of KL→μ+μ- γ. Physical review letters, 74(17), 3323-3326. https://doi.org/10.1103/PhysRevLett.74.3323

Spencer, MB, Arisaka, K, Roberts, D, Slater, W, Weaver, M, Briere, RA, Cheu, E, Harris, DA, Krolak, P, McFarland, KS, Roodman, A, Schwingenheuer, B, Somalwar, SV, Wah, YW, Winstein, B, Winston, R, Barker, AR, Swallow, EC, Bock, GJ, Coleman, R, Crisler, M, Enagonio, J, Ford, R, Hsiung, YB, Jensen, DA, Ramberg, E, Tschirhart, R, Collins, EM, Gollin, GD, Nakaya, T, Yamanaka, T, Gu, P, Haas, P, Hogan, WP, Kim, SK, Matthews, JN, Myung, SS, Schnetzer, S, Thomson, GB & Zou, Y 1995, 'Measurement of the branching ratio and form factor of KL→μ+μ- γ', Physical review letters, vol. 74, no. 17, pp. 3323-3326. https://doi.org/10.1103/PhysRevLett.74.3323

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title = "Measurement of the branching ratio and form factor of KL→μ+μ- γ",

abstract = "We report on a measurement of the decay KL→μ+μ-γ from Fermilab experiment E799. We observe 207 candidate signal events with an estimated background of 10.5±4.0 events and establish B(KL→μ+μ-γ)=[3.23±0.23(stat)±0.19(syst)] ×10-7. This provides the first measurement of the Kγγ* form factor in the muonic Dalitz decay mode of the KL.",

author = "Spencer, \{M. B.\} and K. Arisaka and D. Roberts and W. Slater and M. Weaver and Briere, \{R. A.\} and E. Cheu and Harris, \{D. A.\} and P. Krolak and McFarland, \{K. S.\} and A. Roodman and B. Schwingenheuer and Somalwar, \{S. V.\} and Wah, \{Y. W.\} and B. Winstein and R. Winston and Barker, \{A. R.\} and Swallow, \{E. C.\} and Bock, \{G. J.\} and R. Coleman and M. Crisler and J. Enagonio and R. Ford and Hsiung, \{Y. B.\} and Jensen, \{D. A.\} and E. Ramberg and R. Tschirhart and Collins, \{E. M.\} and Gollin, \{G. D.\} and T. Nakaya and T. Yamanaka and P. Gu and P. Haas and Hogan, \{W. P.\} and Kim, \{S. K.\} and Matthews, \{J. N.\} and Myung, \{S. S.\} and S. Schnetzer and Thomson, \{G. B.\} and Y. Zou",

year = "1995",

doi = "10.1103/PhysRevLett.74.3323",

language = "English (US)",

volume = "74",

pages = "3323--3326",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Measurement of the branching ratio and form factor of KL→μ+μ- γ

AU - Spencer, M. B.

AU - Arisaka, K.

AU - Roberts, D.

AU - Slater, W.

AU - Weaver, M.

AU - Briere, R. A.

AU - Cheu, E.

AU - Harris, D. A.

AU - Krolak, P.

AU - McFarland, K. S.

AU - Roodman, A.

AU - Schwingenheuer, B.

AU - Somalwar, S. V.

AU - Wah, Y. W.

AU - Winstein, B.

AU - Winston, R.

AU - Barker, A. R.

AU - Swallow, E. C.

AU - Bock, G. J.

AU - Coleman, R.

AU - Crisler, M.

AU - Enagonio, J.

AU - Ford, R.

AU - Hsiung, Y. B.

AU - Jensen, D. A.

AU - Ramberg, E.

AU - Tschirhart, R.

AU - Collins, E. M.

AU - Gollin, G. D.

AU - Nakaya, T.

AU - Yamanaka, T.

AU - Gu, P.

AU - Haas, P.

AU - Hogan, W. P.

AU - Kim, S. K.

AU - Matthews, J. N.

AU - Myung, S. S.

AU - Schnetzer, S.

AU - Thomson, G. B.

AU - Zou, Y.

PY - 1995

Y1 - 1995

N2 - We report on a measurement of the decay KL→μ+μ-γ from Fermilab experiment E799. We observe 207 candidate signal events with an estimated background of 10.5±4.0 events and establish B(KL→μ+μ-γ)=[3.23±0.23(stat)±0.19(syst)] ×10-7. This provides the first measurement of the Kγγ* form factor in the muonic Dalitz decay mode of the KL.

AB - We report on a measurement of the decay KL→μ+μ-γ from Fermilab experiment E799. We observe 207 candidate signal events with an estimated background of 10.5±4.0 events and establish B(KL→μ+μ-γ)=[3.23±0.23(stat)±0.19(syst)] ×10-7. This provides the first measurement of the Kγγ* form factor in the muonic Dalitz decay mode of the KL.

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VL - 74

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EP - 3326

JO - Physical review letters

JF - Physical review letters

IS - 17

ER -

Measurement of the branching ratio and form factor of KL→μ+μ- γ

Abstract

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