Measurement of the branching ratio of KL→e+e- γγ

A. Alavi-Harati, T. Alexopoulos, M. Arenton, K. Arisaka, S. Averitte, A. R. Barker, L. Bellantoni, A. Bellavance, J. Belz, R. Ben-David, D. R. Bergman, E. Blücher, G. J. Bock, C. Bown, S. Bright, Elliott C Cheu, S. Childress, R. Coleman, M. D. Corcoran, G. CortiB. Cox, M. B. Crisler, A. R. Erwin, R. Ford, P. M. Fordyce, A. Glazov, A. Golossanov, G. Graham, J. Graham, K. Hagan, E. Halkiadakis, K. Hanagaki, S. Hidaka, Y. B. Hsiung, V. Jejer, D. A. Jensen, R. Kassier, H. G E Kobrak, J. Ladue, A. Lath, A. Ledovskoy, P. L. McBride, P. Mikelsons, E. Monnier, T. Nakaya, K. S. Nelson, H. Nguyen, V. O'Dell, M. Pang, R. Pordes, V. Prasad, C. Qiao, B. Quinn, E. J. Ramberg, R. E. Ray, A. Roodman, M. Sadamoto, S. Schnetzer, K. Senyo, P. Shanahan, P. S. Shawhan, W. Slater, N. Solomey, S. V. Somalwar, R. L. Stone, I. Suzuki, E. C. Swallow, S. A. Taegar, R. J. Tesarek, G. B. Thomson, P. A. Toale, A. Tripathi, R. Tschirhart, Y. W. Wah, J. Wang, H. B. White, J. Whitmore, B. Winstein, R. Winston, T. Yamanaka, E. D. Zimmerman

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We report on a study of the decay KL→e+e- y y carried out as a part of the KTeV/E799 experiment at Fermilab. The 1997 data yielded a sample of 1543 events, including an expected background of 56±8 events. An effective form factor was determined from the observed distribution of the e+e- invariant mass. Using this form factor in the calculation of the detector acceptance, the branching ratio was measured to be B(KL→;E+eTrr,E+>5 MeV) = (5.84±0.15 (slat)±0.32 (syst))× 10-7.

Original languageEnglish (US)
Article number012003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume64
Issue number1
DOIs
StatePublished - 2001
Externally publishedYes

Fingerprint

Form Factors
form factors
Branching
acceptability
Detector
Decay
Invariant
detectors
decay
Experiment
Background

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Alavi-Harati, A., Alexopoulos, T., Arenton, M., Arisaka, K., Averitte, S., Barker, A. R., ... Zimmerman, E. D. (2001). Measurement of the branching ratio of KL→e+e- γγ. Physical Review D - Particles, Fields, Gravitation and Cosmology, 64(1), [012003]. https://doi.org/10.1103/PhysRevD.64.012003

Measurement of the branching ratio of KL→e+e- γγ. / Alavi-Harati, A.; Alexopoulos, T.; Arenton, M.; Arisaka, K.; Averitte, S.; Barker, A. R.; Bellantoni, L.; Bellavance, A.; Belz, J.; Ben-David, R.; Bergman, D. R.; Blücher, E.; Bock, G. J.; Bown, C.; Bright, S.; Cheu, Elliott C; Childress, S.; Coleman, R.; Corcoran, M. D.; Corti, G.; Cox, B.; Crisler, M. B.; Erwin, A. R.; Ford, R.; Fordyce, P. M.; Glazov, A.; Golossanov, A.; Graham, G.; Graham, J.; Hagan, K.; Halkiadakis, E.; Hanagaki, K.; Hidaka, S.; Hsiung, Y. B.; Jejer, V.; Jensen, D. A.; Kassier, R.; Kobrak, H. G E; Ladue, J.; Lath, A.; Ledovskoy, A.; McBride, P. L.; Mikelsons, P.; Monnier, E.; Nakaya, T.; Nelson, K. S.; Nguyen, H.; O'Dell, V.; Pang, M.; Pordes, R.; Prasad, V.; Qiao, C.; Quinn, B.; Ramberg, E. J.; Ray, R. E.; Roodman, A.; Sadamoto, M.; Schnetzer, S.; Senyo, K.; Shanahan, P.; Shawhan, P. S.; Slater, W.; Solomey, N.; Somalwar, S. V.; Stone, R. L.; Suzuki, I.; Swallow, E. C.; Taegar, S. A.; Tesarek, R. J.; Thomson, G. B.; Toale, P. A.; Tripathi, A.; Tschirhart, R.; Wah, Y. W.; Wang, J.; White, H. B.; Whitmore, J.; Winstein, B.; Winston, R.; Yamanaka, T.; Zimmerman, E. D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 64, No. 1, 012003, 2001.

Research output: Contribution to journalArticle

Alavi-Harati, A, Alexopoulos, T, Arenton, M, Arisaka, K, Averitte, S, Barker, AR, Bellantoni, L, Bellavance, A, Belz, J, Ben-David, R, Bergman, DR, Blücher, E, Bock, GJ, Bown, C, Bright, S, Cheu, EC, Childress, S, Coleman, R, Corcoran, MD, Corti, G, Cox, B, Crisler, MB, Erwin, AR, Ford, R, Fordyce, PM, Glazov, A, Golossanov, A, Graham, G, Graham, J, Hagan, K, Halkiadakis, E, Hanagaki, K, Hidaka, S, Hsiung, YB, Jejer, V, Jensen, DA, Kassier, R, Kobrak, HGE, Ladue, J, Lath, A, Ledovskoy, A, McBride, PL, Mikelsons, P, Monnier, E, Nakaya, T, Nelson, KS, Nguyen, H, O'Dell, V, Pang, M, Pordes, R, Prasad, V, Qiao, C, Quinn, B, Ramberg, EJ, Ray, RE, Roodman, A, Sadamoto, M, Schnetzer, S, Senyo, K, Shanahan, P, Shawhan, PS, Slater, W, Solomey, N, Somalwar, SV, Stone, RL, Suzuki, I, Swallow, EC, Taegar, SA, Tesarek, RJ, Thomson, GB, Toale, PA, Tripathi, A, Tschirhart, R, Wah, YW, Wang, J, White, HB, Whitmore, J, Winstein, B, Winston, R, Yamanaka, T & Zimmerman, ED 2001, 'Measurement of the branching ratio of KL→e+e- γγ', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 64, no. 1, 012003. https://doi.org/10.1103/PhysRevD.64.012003
Alavi-Harati A, Alexopoulos T, Arenton M, Arisaka K, Averitte S, Barker AR et al. Measurement of the branching ratio of KL→e+e- γγ. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2001;64(1). 012003. https://doi.org/10.1103/PhysRevD.64.012003
Alavi-Harati, A. ; Alexopoulos, T. ; Arenton, M. ; Arisaka, K. ; Averitte, S. ; Barker, A. R. ; Bellantoni, L. ; Bellavance, A. ; Belz, J. ; Ben-David, R. ; Bergman, D. R. ; Blücher, E. ; Bock, G. J. ; Bown, C. ; Bright, S. ; Cheu, Elliott C ; Childress, S. ; Coleman, R. ; Corcoran, M. D. ; Corti, G. ; Cox, B. ; Crisler, M. B. ; Erwin, A. R. ; Ford, R. ; Fordyce, P. M. ; Glazov, A. ; Golossanov, A. ; Graham, G. ; Graham, J. ; Hagan, K. ; Halkiadakis, E. ; Hanagaki, K. ; Hidaka, S. ; Hsiung, Y. B. ; Jejer, V. ; Jensen, D. A. ; Kassier, R. ; Kobrak, H. G E ; Ladue, J. ; Lath, A. ; Ledovskoy, A. ; McBride, P. L. ; Mikelsons, P. ; Monnier, E. ; Nakaya, T. ; Nelson, K. S. ; Nguyen, H. ; O'Dell, V. ; Pang, M. ; Pordes, R. ; Prasad, V. ; Qiao, C. ; Quinn, B. ; Ramberg, E. J. ; Ray, R. E. ; Roodman, A. ; Sadamoto, M. ; Schnetzer, S. ; Senyo, K. ; Shanahan, P. ; Shawhan, P. S. ; Slater, W. ; Solomey, N. ; Somalwar, S. V. ; Stone, R. L. ; Suzuki, I. ; Swallow, E. C. ; Taegar, S. A. ; Tesarek, R. J. ; Thomson, G. B. ; Toale, P. A. ; Tripathi, A. ; Tschirhart, R. ; Wah, Y. W. ; Wang, J. ; White, H. B. ; Whitmore, J. ; Winstein, B. ; Winston, R. ; Yamanaka, T. ; Zimmerman, E. D. / Measurement of the branching ratio of KL→e+e- γγ. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2001 ; Vol. 64, No. 1.
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abstract = "We report on a study of the decay KL→e+e- y y carried out as a part of the KTeV/E799 experiment at Fermilab. The 1997 data yielded a sample of 1543 events, including an expected background of 56±8 events. An effective form factor was determined from the observed distribution of the e+e- invariant mass. Using this form factor in the calculation of the detector acceptance, the branching ratio was measured to be B(KL→;E+eTrr,E+>5 MeV) = (5.84±0.15 (slat)±0.32 (syst))× 10-7.",
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T1 - Measurement of the branching ratio of KL→e+e- γγ

AU - Alavi-Harati, A.

AU - Alexopoulos, T.

AU - Arenton, M.

AU - Arisaka, K.

AU - Averitte, S.

AU - Barker, A. R.

AU - Bellantoni, L.

AU - Bellavance, A.

AU - Belz, J.

AU - Ben-David, R.

AU - Bergman, D. R.

AU - Blücher, E.

AU - Bock, G. J.

AU - Bown, C.

AU - Bright, S.

AU - Cheu, Elliott C

AU - Childress, S.

AU - Coleman, R.

AU - Corcoran, M. D.

AU - Corti, G.

AU - Cox, B.

AU - Crisler, M. B.

AU - Erwin, A. R.

AU - Ford, R.

AU - Fordyce, P. M.

AU - Glazov, A.

AU - Golossanov, A.

AU - Graham, G.

AU - Graham, J.

AU - Hagan, K.

AU - Halkiadakis, E.

AU - Hanagaki, K.

AU - Hidaka, S.

AU - Hsiung, Y. B.

AU - Jejer, V.

AU - Jensen, D. A.

AU - Kassier, R.

AU - Kobrak, H. G E

AU - Ladue, J.

AU - Lath, A.

AU - Ledovskoy, A.

AU - McBride, P. L.

AU - Mikelsons, P.

AU - Monnier, E.

AU - Nakaya, T.

AU - Nelson, K. S.

AU - Nguyen, H.

AU - O'Dell, V.

AU - Pang, M.

AU - Pordes, R.

AU - Prasad, V.

AU - Qiao, C.

AU - Quinn, B.

AU - Ramberg, E. J.

AU - Ray, R. E.

AU - Roodman, A.

AU - Sadamoto, M.

AU - Schnetzer, S.

AU - Senyo, K.

AU - Shanahan, P.

AU - Shawhan, P. S.

AU - Slater, W.

AU - Solomey, N.

AU - Somalwar, S. V.

AU - Stone, R. L.

AU - Suzuki, I.

AU - Swallow, E. C.

AU - Taegar, S. A.

AU - Tesarek, R. J.

AU - Thomson, G. B.

AU - Toale, P. A.

AU - Tripathi, A.

AU - Tschirhart, R.

AU - Wah, Y. W.

AU - Wang, J.

AU - White, H. B.

AU - Whitmore, J.

AU - Winstein, B.

AU - Winston, R.

AU - Yamanaka, T.

AU - Zimmerman, E. D.

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AB - We report on a study of the decay KL→e+e- y y carried out as a part of the KTeV/E799 experiment at Fermilab. The 1997 data yielded a sample of 1543 events, including an expected background of 56±8 events. An effective form factor was determined from the observed distribution of the e+e- invariant mass. Using this form factor in the calculation of the detector acceptance, the branching ratio was measured to be B(KL→;E+eTrr,E+>5 MeV) = (5.84±0.15 (slat)±0.32 (syst))× 10-7.

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