Test of exotic scalar and tensor couplings in K+ → π0e+ν decay

S. Shimizu; K. Horie; M. Abe; M. Aoki; I. Arai; Y. Asano; T. Baker; M. Blecher; M. D. Chapman; P. Depommier; M. P. Grigorjev; M. Hasinoff; H. C. Huang; Y. Igarashi; T. Ikeda; J. Imazato; A. P. Ivashkin; J. H. Kang; M. M. Khabibullin; A. N. Khotjantsev; Y. G. Kudenko; Y. Kuno; J. M. Lee; K. S. Lee; A. S. Levchenko; G. Y. Lim; J. A. Macdonald; C. R. Mindas; O. V. Mineev; S. Sekikawa; H. M. Shimizu; Y. H. Shin; Y. M. Shin; K. S. Sim; A. Suzuki; T. Tashiro; A. Watanabe; D. H. Wright; T. Yokoi

doi:10.1016/S0370-2693(00)01235-1

Test of exotic scalar and tensor couplings in K⁺ → π⁰e⁺ν decay

S. Shimizu, K. Horie, M. Abe, M. Aoki, I. Arai, Y. Asano, T. Baker, M. Blecher, M. D. Chapman, P. Depommier, M. P. Grigorjev, M. Hasinoff, H. C. Huang, Y. Igarashi, T. Ikeda, J. Imazato, A. P. Ivashkin, J. H. Kang, M. M. Khabibullin, A. N. KhotjantsevY. G. Kudenko, Y. Kuno, J. M. Lee, K. S. Lee, A. S. Levchenko, G. Y. Lim, J. A. Macdonald, C. R. Mindas, O. V. Mineev, S. Sekikawa, H. M. Shimizu, Y. H. Shin, Y. M. Shin, K. S. Sim, A. Suzuki, T. Tashiro, A. Watanabe, D. H. Wright, T. Yokoi

Department of Physics

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The form factors of the decay K⁺ → π⁰e⁺ν (K(e3)/⁺) have been measured with stopped kaons. A Dalitz plot containing 4.1 x 10⁴ events was analyzed. A comparison of the observed Dalitz plot with a Monte Carlo simulation determined the ratio of the strengths of possible scalar and tensor couplings to that of the vector coupling, f(S)/f₊(0) = -0.002 ± 0.026(stat) ± 0.014(syst) and f(T)/f₊(0) = -0.01 ± 0.14(stat) ± 0.09(syst). These values are consistent with the standard model prediction of zero, and disagree with a previous experiment. The analysis also yielded the coefficient of the q² term in the vector form factor to be λ₊ = 0.0278 ± 0.0026(stat) ± 0.0030(syst). (C) 2000 Elsevier Science B.V.

Original language	English
Pages (from-to)	33-41
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	495
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(00)01235-1
Publication status	Published - 2000 Dec 7

Bibliographical note

Funding Information:
This work was supported in Japan by a Grant-in-Aid from the Ministry of Education, Science, Sports and Culture, and by JSPS; in Russia by the Ministry of Science and Technology, and by the Russian Foundation for Basic Research; in Canada by NSERC and IPP, and by the TRIUMF infrastructure support provided under its NRC contribution; in Korea by BSRI-MOE and KOSEF; in the USA by NSF and DOE; and in Taiwan by NSC. The authors gratefully acknowledge the excellent support received from the KEK staff.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(00)01235-1

Cite this

Shimizu, S., Horie, K., Abe, M., Aoki, M., Arai, I., Asano, Y., Baker, T., Blecher, M., Chapman, M. D., Depommier, P., Grigorjev, M. P., Hasinoff, M., Huang, H. C., Igarashi, Y., Ikeda, T., Imazato, J., Ivashkin, A. P., Kang, J. H., Khabibullin, M. M., ... Yokoi, T. (2000). Test of exotic scalar and tensor couplings in K⁺ → π⁰e⁺ν decay. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 495(1-2), 33-41. https://doi.org/10.1016/S0370-2693(00)01235-1

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title = "Test of exotic scalar and tensor couplings in K+ → π0e+ν decay",

abstract = "The form factors of the decay K+ → π0e+ν (K(e3)/+) have been measured with stopped kaons. A Dalitz plot containing 4.1 x 104 events was analyzed. A comparison of the observed Dalitz plot with a Monte Carlo simulation determined the ratio of the strengths of possible scalar and tensor couplings to that of the vector coupling, f(S)/f+(0) = -0.002 ± 0.026(stat) ± 0.014(syst) and f(T)/f+(0) = -0.01 ± 0.14(stat) ± 0.09(syst). These values are consistent with the standard model prediction of zero, and disagree with a previous experiment. The analysis also yielded the coefficient of the q2 term in the vector form factor to be λ+ = 0.0278 ± 0.0026(stat) ± 0.0030(syst). (C) 2000 Elsevier Science B.V.",

author = "S. Shimizu and K. Horie and M. Abe and M. Aoki and I. Arai and Y. Asano and T. Baker and M. Blecher and Chapman, {M. D.} and P. Depommier and Grigorjev, {M. P.} and M. Hasinoff and Huang, {H. C.} and Y. Igarashi and T. Ikeda and J. Imazato and Ivashkin, {A. P.} and Kang, {J. H.} and Khabibullin, {M. M.} and Khotjantsev, {A. N.} and Kudenko, {Y. G.} and Y. Kuno and Lee, {J. M.} and Lee, {K. S.} and Levchenko, {A. S.} and Lim, {G. Y.} and Macdonald, {J. A.} and Mindas, {C. R.} and Mineev, {O. V.} and S. Sekikawa and Shimizu, {H. M.} and Shin, {Y. H.} and Shin, {Y. M.} and Sim, {K. S.} and A. Suzuki and T. Tashiro and A. Watanabe and Wright, {D. H.} and T. Yokoi",

note = "Funding Information: This work was supported in Japan by a Grant-in-Aid from the Ministry of Education, Science, Sports and Culture, and by JSPS; in Russia by the Ministry of Science and Technology, and by the Russian Foundation for Basic Research; in Canada by NSERC and IPP, and by the TRIUMF infrastructure support provided under its NRC contribution; in Korea by BSRI-MOE and KOSEF; in the USA by NSF and DOE; and in Taiwan by NSC. The authors gratefully acknowledge the excellent support received from the KEK staff.",

year = "2000",

month = dec,

day = "7",

doi = "10.1016/S0370-2693(00)01235-1",

language = "English",

volume = "495",

pages = "33--41",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Shimizu, S, Horie, K, Abe, M, Aoki, M, Arai, I, Asano, Y, Baker, T, Blecher, M, Chapman, MD, Depommier, P, Grigorjev, MP, Hasinoff, M, Huang, HC, Igarashi, Y, Ikeda, T, Imazato, J, Ivashkin, AP, Kang, JH, Khabibullin, MM, Khotjantsev, AN, Kudenko, YG, Kuno, Y, Lee, JM, Lee, KS, Levchenko, AS, Lim, GY, Macdonald, JA, Mindas, CR, Mineev, OV, Sekikawa, S, Shimizu, HM, Shin, YH, Shin, YM, Sim, KS, Suzuki, A, Tashiro, T, Watanabe, A, Wright, DH & Yokoi, T 2000, 'Test of exotic scalar and tensor couplings in K⁺ → π⁰e⁺ν decay', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 495, no. 1-2, pp. 33-41. https://doi.org/10.1016/S0370-2693(00)01235-1

TY - JOUR

T1 - Test of exotic scalar and tensor couplings in K+ → π0e+ν decay

AU - Shimizu, S.

AU - Horie, K.

AU - Abe, M.

AU - Aoki, M.

AU - Arai, I.

AU - Asano, Y.

AU - Baker, T.

AU - Blecher, M.

AU - Chapman, M. D.

AU - Depommier, P.

AU - Grigorjev, M. P.

AU - Hasinoff, M.

AU - Huang, H. C.

AU - Igarashi, Y.

AU - Ikeda, T.

AU - Imazato, J.

AU - Ivashkin, A. P.

AU - Kang, J. H.

AU - Khabibullin, M. M.

AU - Khotjantsev, A. N.

AU - Kudenko, Y. G.

AU - Kuno, Y.

AU - Lee, J. M.

AU - Lee, K. S.

AU - Levchenko, A. S.

AU - Lim, G. Y.

AU - Macdonald, J. A.

AU - Mindas, C. R.

AU - Mineev, O. V.

AU - Sekikawa, S.

AU - Shimizu, H. M.

AU - Shin, Y. H.

AU - Shin, Y. M.

AU - Sim, K. S.

AU - Suzuki, A.

AU - Tashiro, T.

AU - Watanabe, A.

AU - Wright, D. H.

AU - Yokoi, T.

N1 - Funding Information: This work was supported in Japan by a Grant-in-Aid from the Ministry of Education, Science, Sports and Culture, and by JSPS; in Russia by the Ministry of Science and Technology, and by the Russian Foundation for Basic Research; in Canada by NSERC and IPP, and by the TRIUMF infrastructure support provided under its NRC contribution; in Korea by BSRI-MOE and KOSEF; in the USA by NSF and DOE; and in Taiwan by NSC. The authors gratefully acknowledge the excellent support received from the KEK staff.

PY - 2000/12/7

Y1 - 2000/12/7

N2 - The form factors of the decay K+ → π0e+ν (K(e3)/+) have been measured with stopped kaons. A Dalitz plot containing 4.1 x 104 events was analyzed. A comparison of the observed Dalitz plot with a Monte Carlo simulation determined the ratio of the strengths of possible scalar and tensor couplings to that of the vector coupling, f(S)/f+(0) = -0.002 ± 0.026(stat) ± 0.014(syst) and f(T)/f+(0) = -0.01 ± 0.14(stat) ± 0.09(syst). These values are consistent with the standard model prediction of zero, and disagree with a previous experiment. The analysis also yielded the coefficient of the q2 term in the vector form factor to be λ+ = 0.0278 ± 0.0026(stat) ± 0.0030(syst). (C) 2000 Elsevier Science B.V.

AB - The form factors of the decay K+ → π0e+ν (K(e3)/+) have been measured with stopped kaons. A Dalitz plot containing 4.1 x 104 events was analyzed. A comparison of the observed Dalitz plot with a Monte Carlo simulation determined the ratio of the strengths of possible scalar and tensor couplings to that of the vector coupling, f(S)/f+(0) = -0.002 ± 0.026(stat) ± 0.014(syst) and f(T)/f+(0) = -0.01 ± 0.14(stat) ± 0.09(syst). These values are consistent with the standard model prediction of zero, and disagree with a previous experiment. The analysis also yielded the coefficient of the q2 term in the vector form factor to be λ+ = 0.0278 ± 0.0026(stat) ± 0.0030(syst). (C) 2000 Elsevier Science B.V.

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U2 - 10.1016/S0370-2693(00)01235-1

DO - 10.1016/S0370-2693(00)01235-1

M3 - Article

AN - SCOPUS:0034619776

SN - 0370-2693

VL - 495

SP - 33

EP - 41

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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ER -