Search for the rare decay KL→π0π0γ

E. Abouzaid; M. Arenton; A. R. Barker; L. Bellantoni; E. Blucher; G. J. Bock; E. Cheu; R. Coleman; M. D. Corcoran; G. Corti; B. Cox; A. R. Erwin; C. O. Escobar; A. Glazov; A. Golossanov; R. A. Gomes; P. Gouffon; Y. B. Hsiung; D. A. Jensen; R. Kessler; K. Kotera; A. Ledovskoy; P. L. McBride; E. Monnier; H. Nguyen; R. Niclasen; D. G. Phillips; H. Ping; E. J. Ramberg; R. E. Ray; M. Ronquest; E. Santos; J. Shields; W. Slater; D. Smith; N. Solomey; E. C. Swallow; P. A. Toale; R. Tschirhart; C. Velissaris; Y. W. Wah; J. Wang; H. B. White; J. Whitmore; M. Wilking; R. Winston; E. T. Worcester; M. Worcester; T. Yamanaka; E. D. Zimmerman; R. F. Zukanovich

doi:10.1103/PhysRevD.78.032014

Search for the rare decay KL→π0π0γ

E. Abouzaid, M. Arenton, A. R. Barker, L. Bellantoni, E. Blucher, G. J. Bock, E. Cheu, R. Coleman, M. D. Corcoran, G. Corti, B. Cox, A. R. Erwin, C. O. Escobar, A. Glazov, A. Golossanov, R. A. Gomes, P. Gouffon, Y. B. Hsiung, D. A. Jensen, R. KesslerK. Kotera, A. Ledovskoy, P. L. McBride, E. Monnier, H. Nguyen, R. Niclasen, D. G. Phillips, H. Ping, E. J. Ramberg, R. E. Ray, M. Ronquest, E. Santos, J. Shields, W. Slater, D. Smith, N. Solomey, E. C. Swallow, P. A. Toale, R. Tschirhart, C. Velissaris, Y. W. Wah, J. Wang, H. B. White, J. Whitmore, M. Wilking, R. Winston, E. T. Worcester, M. Worcester, T. Yamanaka, E. D. Zimmerman, R. F. Zukanovich

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Abstract

The KTeV E799 experiment has conducted a search for the rare decay KL→π0π0γ via the topology KL→π0πD0γ (where πD0→γe+e-). Because of Bose statistics of the π0 pair and the real nature of the photon, the KL→π0π0γ decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p4). Therefore, this mode probes chiral perturbation theory at O(p6). In this paper we report a determination of an upper limit of 2.43×10-7 (90% CL) for KL→π0π0γ. This is approximately a factor of 20 lower than previous results. © 2008 The American Physical Society.

Original language	English
Article number	032014
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	78
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.78.032014
Publication status	Published - 21 Aug 2008

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Abouzaid, E., Arenton, M., Barker, A. R., Bellantoni, L., Blucher, E., Bock, G. J., Cheu, E., Coleman, R., Corcoran, M. D., Corti, G., Cox, B., Erwin, A. R., Escobar, C. O., Glazov, A., Golossanov, A., Gomes, R. A., Gouffon, P., Hsiung, Y. B., Jensen, D. A., ... Zukanovich, R. F. (2008). Search for the rare decay KL→π0π0γ. Physical Review D - Particles, Fields, Gravitation and Cosmology, 78(3), Article 032014. https://doi.org/10.1103/PhysRevD.78.032014

@article{bee080d4090a4104825b5de6f7e161c1,

title = "Search for the rare decay KL→π0π0γ",

abstract = "The KTeV E799 experiment has conducted a search for the rare decay KL→π0π0γ via the topology KL→π0πD0γ (where πD0→γe+e-). Because of Bose statistics of the π0 pair and the real nature of the photon, the KL→π0π0γ decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p4). Therefore, this mode probes chiral perturbation theory at O(p6). In this paper we report a determination of an upper limit of 2.43×10-7 (90% CL) for KL→π0π0γ. This is approximately a factor of 20 lower than previous results. {\textcopyright} 2008 The American Physical Society.",

author = "E. Abouzaid and M. Arenton and Barker, {A. R.} and L. Bellantoni and E. Blucher and Bock, {G. J.} and E. Cheu and R. Coleman and Corcoran, {M. D.} and G. Corti and B. Cox and Erwin, {A. R.} and Escobar, {C. O.} and A. Glazov and A. Golossanov and Gomes, {R. A.} and P. Gouffon and Hsiung, {Y. B.} and Jensen, {D. A.} and R. Kessler and K. Kotera and A. Ledovskoy and McBride, {P. L.} and E. Monnier and H. Nguyen and R. Niclasen and Phillips, {D. G.} and H. Ping and Ramberg, {E. J.} and Ray, {R. E.} and M. Ronquest and E. Santos and J. Shields and W. Slater and D. Smith and N. Solomey and Swallow, {E. C.} and Toale, {P. A.} and R. Tschirhart and C. Velissaris and Wah, {Y. W.} and J. Wang and White, {H. B.} and J. Whitmore and M. Wilking and R. Winston and Worcester, {E. T.} and M. Worcester and T. Yamanaka and Zimmerman, {E. D.} and Zukanovich, {R. F.}",

year = "2008",

month = aug,

day = "21",

doi = "10.1103/PhysRevD.78.032014",

language = "English",

volume = "78",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "3",

}

Abouzaid, E, Arenton, M, Barker, AR, Bellantoni, L, Blucher, E, Bock, GJ, Cheu, E, Coleman, R, Corcoran, MD, Corti, G, Cox, B, Erwin, AR, Escobar, CO, Glazov, A, Golossanov, A, Gomes, RA, Gouffon, P, Hsiung, YB, Jensen, DA, Kessler, R, Kotera, K, Ledovskoy, A, McBride, PL, Monnier, E, Nguyen, H, Niclasen, R, Phillips, DG, Ping, H, Ramberg, EJ, Ray, RE, Ronquest, M, Santos, E, Shields, J, Slater, W, Smith, D, Solomey, N, Swallow, EC, Toale, PA, Tschirhart, R, Velissaris, C, Wah, YW, Wang, J, White, HB, Whitmore, J, Wilking, M, Winston, R, Worcester, ET, Worcester, M, Yamanaka, T, Zimmerman, ED & Zukanovich, RF 2008, 'Search for the rare decay KL→π0π0γ', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 78, no. 3, 032014. https://doi.org/10.1103/PhysRevD.78.032014

TY - JOUR

T1 - Search for the rare decay KL→π0π0γ

AU - Abouzaid, E.

AU - Arenton, M.

AU - Barker, A. R.

AU - Bellantoni, L.

AU - Blucher, E.

AU - Bock, G. J.

AU - Cheu, E.

AU - Coleman, R.

AU - Corcoran, M. D.

AU - Corti, G.

AU - Cox, B.

AU - Erwin, A. R.

AU - Escobar, C. O.

AU - Glazov, A.

AU - Golossanov, A.

AU - Gomes, R. A.

AU - Gouffon, P.

AU - Hsiung, Y. B.

AU - Jensen, D. A.

AU - Kessler, R.

AU - Kotera, K.

AU - Ledovskoy, A.

AU - McBride, P. L.

AU - Monnier, E.

AU - Nguyen, H.

AU - Niclasen, R.

AU - Phillips, D. G.

AU - Ping, H.

AU - Ramberg, E. J.

AU - Ray, R. E.

AU - Ronquest, M.

AU - Santos, E.

AU - Shields, J.

AU - Slater, W.

AU - Smith, D.

AU - Solomey, N.

AU - Swallow, E. C.

AU - Toale, P. A.

AU - Tschirhart, R.

AU - Velissaris, C.

AU - Wah, Y. W.

AU - Wang, J.

AU - White, H. B.

AU - Whitmore, J.

AU - Wilking, M.

AU - Winston, R.

AU - Worcester, E. T.

AU - Worcester, M.

AU - Yamanaka, T.

AU - Zimmerman, E. D.

AU - Zukanovich, R. F.

PY - 2008/8/21

Y1 - 2008/8/21

N2 - The KTeV E799 experiment has conducted a search for the rare decay KL→π0π0γ via the topology KL→π0πD0γ (where πD0→γe+e-). Because of Bose statistics of the π0 pair and the real nature of the photon, the KL→π0π0γ decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p4). Therefore, this mode probes chiral perturbation theory at O(p6). In this paper we report a determination of an upper limit of 2.43×10-7 (90% CL) for KL→π0π0γ. This is approximately a factor of 20 lower than previous results. © 2008 The American Physical Society.

AB - The KTeV E799 experiment has conducted a search for the rare decay KL→π0π0γ via the topology KL→π0πD0γ (where πD0→γe+e-). Because of Bose statistics of the π0 pair and the real nature of the photon, the KL→π0π0γ decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p4). Therefore, this mode probes chiral perturbation theory at O(p6). In this paper we report a determination of an upper limit of 2.43×10-7 (90% CL) for KL→π0π0γ. This is approximately a factor of 20 lower than previous results. © 2008 The American Physical Society.

U2 - 10.1103/PhysRevD.78.032014

DO - 10.1103/PhysRevD.78.032014

M3 - Article

SN - 1550-7998

VL - 78

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 032014

ER -

Search for the rare decay KL→π0π0γ

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