Measurements of the decay KL → e+e-μ+μ-

A. Alavi-Harati, T. Alexopoulos, M. Arenton, K. Arisaka, R. F. Barbosa, A. R. Barker, M. Barrio, L. Bellantoni, A. Bellavance, E. Blucher, G. J. Bock, C. Bown, S. Bright, Elliott C Cheu, R. Coleman, M. D. Corcoran, B. Cox, A. R. Erwin, C. O. Escobar, R. FordA. Glazov, A. Golossanov, P. Gouffon, J. Graham, J. Hamm, K. Hanagaki, Y. B. Hsiung, H. Huang, V. Jejer, D. A. Jensen, R. Kessler, H. G E Kobrak, K. Kotera, J. LaDue, N. Lai, A. Ledovskoy, P. L. McBride, E. Monnier, K. S. Nelson, H. Nguyen, V. Prasad, X. R. Qi, B. Quinn, E. J. Ramberg, R. E. Ray, E. Santos, K. Senyo, P. Shanahan, J. Shields, W. Slater, N. Solomey, E. C. Swallow, S. A. Taegar, R. J. Tesarek, P. A. Toale, A. Tripathi, R. Tschirhart, Y. W. Wah, J. Wang, H. B. White, J. Whitmore, M. Wilking, B. Winstein, R. Winston, E. T. Worcester, T. Yamanaka, R. F. Zukanovich

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Abstract

Several 132 KL → e+e- μ+ μ- events were observed from the 1997 and 1999 runs of the KTeV experiments, with an estimated background of 0.8 events. In the first measurement of the parameter α using this decay mode, it was found that α=-1.59±0.37. No evidence was found for CP-violating contributions to the KLγ*γ* interaction.

Original languageEnglish (US)
JournalPhysical Review Letters
Volume90
Issue number14
StatePublished - Apr 11 2003

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Alavi-Harati, A., Alexopoulos, T., Arenton, M., Arisaka, K., Barbosa, R. F., Barker, A. R., ... Zukanovich, R. F. (2003). Measurements of the decay KL → e+e-μ+μ-. Physical Review Letters, 90(14).

Measurements of the decay KL → e+e-μ+μ-. / Alavi-Harati, A.; Alexopoulos, T.; Arenton, M.; Arisaka, K.; Barbosa, R. F.; Barker, A. R.; Barrio, M.; Bellantoni, L.; Bellavance, A.; Blucher, E.; Bock, G. J.; Bown, C.; Bright, S.; Cheu, Elliott C; Coleman, R.; Corcoran, M. D.; Cox, B.; Erwin, A. R.; Escobar, C. O.; Ford, R.; Glazov, A.; Golossanov, A.; Gouffon, P.; Graham, J.; Hamm, J.; Hanagaki, K.; Hsiung, Y. B.; Huang, H.; Jejer, V.; Jensen, D. A.; Kessler, R.; Kobrak, H. G E; Kotera, K.; LaDue, J.; Lai, N.; Ledovskoy, A.; McBride, P. L.; Monnier, E.; Nelson, K. S.; Nguyen, H.; Prasad, V.; Qi, X. R.; Quinn, B.; Ramberg, E. J.; Ray, R. E.; Santos, E.; Senyo, K.; Shanahan, P.; Shields, J.; Slater, W.; Solomey, N.; Swallow, E. C.; Taegar, S. A.; Tesarek, R. J.; Toale, P. A.; Tripathi, A.; Tschirhart, R.; Wah, Y. W.; Wang, J.; White, H. B.; Whitmore, J.; Wilking, M.; Winstein, B.; Winston, R.; Worcester, E. T.; Yamanaka, T.; Zukanovich, R. F.

In: Physical Review Letters, Vol. 90, No. 14, 11.04.2003.

Research output: Contribution to journalArticle

Alavi-Harati, A, Alexopoulos, T, Arenton, M, Arisaka, K, Barbosa, RF, Barker, AR, Barrio, M, Bellantoni, L, Bellavance, A, Blucher, E, Bock, GJ, Bown, C, Bright, S, Cheu, EC, Coleman, R, Corcoran, MD, Cox, B, Erwin, AR, Escobar, CO, Ford, R, Glazov, A, Golossanov, A, Gouffon, P, Graham, J, Hamm, J, Hanagaki, K, Hsiung, YB, Huang, H, Jejer, V, Jensen, DA, Kessler, R, Kobrak, HGE, Kotera, K, LaDue, J, Lai, N, Ledovskoy, A, McBride, PL, Monnier, E, Nelson, KS, Nguyen, H, Prasad, V, Qi, XR, Quinn, B, Ramberg, EJ, Ray, RE, Santos, E, Senyo, K, Shanahan, P, Shields, J, Slater, W, Solomey, N, Swallow, EC, Taegar, SA, Tesarek, RJ, Toale, PA, Tripathi, A, Tschirhart, R, Wah, YW, Wang, J, White, HB, Whitmore, J, Wilking, M, Winstein, B, Winston, R, Worcester, ET, Yamanaka, T & Zukanovich, RF 2003, 'Measurements of the decay KL → e+e-μ+μ-', Physical Review Letters, vol. 90, no. 14.
Alavi-Harati A, Alexopoulos T, Arenton M, Arisaka K, Barbosa RF, Barker AR et al. Measurements of the decay KL → e+e-μ+μ-. Physical Review Letters. 2003 Apr 11;90(14).
Alavi-Harati, A. ; Alexopoulos, T. ; Arenton, M. ; Arisaka, K. ; Barbosa, R. F. ; Barker, A. R. ; Barrio, M. ; Bellantoni, L. ; Bellavance, A. ; Blucher, E. ; Bock, G. J. ; Bown, C. ; Bright, S. ; Cheu, Elliott C ; Coleman, R. ; Corcoran, M. D. ; Cox, B. ; Erwin, A. R. ; Escobar, C. O. ; Ford, R. ; Glazov, A. ; Golossanov, A. ; Gouffon, P. ; Graham, J. ; Hamm, J. ; Hanagaki, K. ; Hsiung, Y. B. ; Huang, H. ; Jejer, V. ; Jensen, D. A. ; Kessler, R. ; Kobrak, H. G E ; Kotera, K. ; LaDue, J. ; Lai, N. ; Ledovskoy, A. ; McBride, P. L. ; Monnier, E. ; Nelson, K. S. ; Nguyen, H. ; Prasad, V. ; Qi, X. R. ; Quinn, B. ; Ramberg, E. J. ; Ray, R. E. ; Santos, E. ; Senyo, K. ; Shanahan, P. ; Shields, J. ; Slater, W. ; Solomey, N. ; Swallow, E. C. ; Taegar, S. A. ; Tesarek, R. J. ; Toale, P. A. ; Tripathi, A. ; Tschirhart, R. ; Wah, Y. W. ; Wang, J. ; White, H. B. ; Whitmore, J. ; Wilking, M. ; Winstein, B. ; Winston, R. ; Worcester, E. T. ; Yamanaka, T. ; Zukanovich, R. F. / Measurements of the decay KL → e+e-μ+μ-. In: Physical Review Letters. 2003 ; Vol. 90, No. 14.
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title = "Measurements of the decay KL → e+e-μ+μ-",
abstract = "Several 132 KL → e+e- μ+ μ- events were observed from the 1997 and 1999 runs of the KTeV experiments, with an estimated background of 0.8 events. In the first measurement of the parameter α using this decay mode, it was found that α=-1.59±0.37. No evidence was found for CP-violating contributions to the KLγ*γ* interaction.",
author = "A. Alavi-Harati and T. Alexopoulos and M. Arenton and K. Arisaka and Barbosa, {R. F.} and Barker, {A. R.} and M. Barrio and L. Bellantoni and A. Bellavance and E. Blucher and Bock, {G. J.} and C. Bown and S. Bright and Cheu, {Elliott C} and R. Coleman and Corcoran, {M. D.} and B. Cox and Erwin, {A. R.} and Escobar, {C. O.} and R. Ford and A. Glazov and A. Golossanov and P. Gouffon and J. Graham and J. Hamm and K. Hanagaki and Hsiung, {Y. B.} and H. Huang and V. Jejer and Jensen, {D. A.} and R. Kessler and Kobrak, {H. G E} and K. Kotera and J. LaDue and N. Lai and A. Ledovskoy and McBride, {P. L.} and E. Monnier and Nelson, {K. S.} and H. Nguyen and V. Prasad and Qi, {X. R.} and B. Quinn and Ramberg, {E. J.} and Ray, {R. E.} and E. Santos and K. Senyo and P. Shanahan and J. Shields and W. Slater and N. Solomey and Swallow, {E. C.} and Taegar, {S. A.} and Tesarek, {R. J.} and Toale, {P. A.} and A. Tripathi and R. Tschirhart and Wah, {Y. W.} and J. Wang and White, {H. B.} and J. Whitmore and M. Wilking and B. Winstein and R. Winston and Worcester, {E. T.} and T. Yamanaka and Zukanovich, {R. F.}",
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TY - JOUR

T1 - Measurements of the decay KL → e+e-μ+μ-

AU - Alavi-Harati, A.

AU - Alexopoulos, T.

AU - Arenton, M.

AU - Arisaka, K.

AU - Barbosa, R. F.

AU - Barker, A. R.

AU - Barrio, M.

AU - Bellantoni, L.

AU - Bellavance, A.

AU - Blucher, E.

AU - Bock, G. J.

AU - Bown, C.

AU - Bright, S.

AU - Cheu, Elliott C

AU - Coleman, R.

AU - Corcoran, M. D.

AU - Cox, B.

AU - Erwin, A. R.

AU - Escobar, C. O.

AU - Ford, R.

AU - Glazov, A.

AU - Golossanov, A.

AU - Gouffon, P.

AU - Graham, J.

AU - Hamm, J.

AU - Hanagaki, K.

AU - Hsiung, Y. B.

AU - Huang, H.

AU - Jejer, V.

AU - Jensen, D. A.

AU - Kessler, R.

AU - Kobrak, H. G E

AU - Kotera, K.

AU - LaDue, J.

AU - Lai, N.

AU - Ledovskoy, A.

AU - McBride, P. L.

AU - Monnier, E.

AU - Nelson, K. S.

AU - Nguyen, H.

AU - Prasad, V.

AU - Qi, X. R.

AU - Quinn, B.

AU - Ramberg, E. J.

AU - Ray, R. E.

AU - Santos, E.

AU - Senyo, K.

AU - Shanahan, P.

AU - Shields, J.

AU - Slater, W.

AU - Solomey, N.

AU - Swallow, E. C.

AU - Taegar, S. A.

AU - Tesarek, R. J.

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 - Wilking, M.

AU - Winstein, B.

AU - Winston, R.

AU - Worcester, E. T.

AU - Yamanaka, T.

AU - Zukanovich, R. F.

PY - 2003/4/11

Y1 - 2003/4/11

N2 - Several 132 KL → e+e- μ+ μ- events were observed from the 1997 and 1999 runs of the KTeV experiments, with an estimated background of 0.8 events. In the first measurement of the parameter α using this decay mode, it was found that α=-1.59±0.37. No evidence was found for CP-violating contributions to the KLγ*γ* interaction.

AB - Several 132 KL → e+e- μ+ μ- events were observed from the 1997 and 1999 runs of the KTeV experiments, with an estimated background of 0.8 events. In the first measurement of the parameter α using this decay mode, it was found that α=-1.59±0.37. No evidence was found for CP-violating contributions to the KLγ*γ* interaction.

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M3 - Article

AN - SCOPUS:0038541973

VL - 90

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 14

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