Determination of the radiative decay width of the ηc meson

H. Albrecht; T. Hamacher; R. P. Hofmann; T. Kirchhoff; R. Mankel; A. Nau; S. Nowak; D. Reßing; H. Schröder; H. D. Schulz; M. Walter; R. Wurth; C. Hast; H. Kapitza; H. Kolanoski; A. Kosche; A. Lange; A. Lindner; M. Schieber; T. Siegmund; B. Spaan; H. Thurn; D. Töpfer; D. Wegener; P. Eckstein; M. Schmidtler; M. Schramm; K. R. Schubert; R. Schwierz; R. Waldi; K. Reim; H. Wegener; R. Eckmann; H. Kuipers; O. Mai; R. Mundt; T. Oest; R. Reiner; W. Schmidt-Parzefall; J. Stiewe; S. Werner; K. Ehret; W. Hofmann; A. Hüpper; K. T. Knöpfle; J. Spengler; P. Krieger; D. B. MacFarlane; J. D. Prentice; P. R.B. Saull; K. Tzamariudaki; R. G. Van de Water; T. S. Yoon; C. Frankl; M. Schneider; S. Weseler; G. Kernel; P. Kržan; E. Križnič; T. Podobnik; T. Živko; V. Balagura; I. Belyaev; S. Chechelnitsky; M. Danilov; A. Droutskoy; Yu Gershtein; A. Golutvin; I. Korolko; G. Kostina; D. Litvintsev; V. Lubimov; P. Pakhlov; S. Semenov; A. Snizhko; I. Tichomirov; Yu Zaitsev

doi:10.1016/0370-2693(94)91395-1

Determination of the radiative decay width of the η_c meson

H. Albrecht, T. Hamacher, R. P. Hofmann, T. Kirchhoff, R. Mankel, A. Nau, S. Nowak, D. Reßing, H. Schröder, H. D. Schulz, M. Walter, R. Wurth, C. Hast, H. Kapitza, H. Kolanoski, A. Kosche, A. Lange, A. Lindner, M. Schieber, T. SiegmundB. Spaan, H. Thurn, D. Töpfer, D. Wegener, P. Eckstein, M. Schmidtler, M. Schramm, K. R. Schubert, R. Schwierz, R. Waldi, K. Reim, H. Wegener, R. Eckmann, H. Kuipers, O. Mai, R. Mundt, T. Oest, R. Reiner, W. Schmidt-Parzefall, J. Stiewe, S. Werner, K. Ehret, W. Hofmann, A. Hüpper, K. T. Knöpfle, J. Spengler, P. Krieger, D. B. MacFarlane, J. D. Prentice, P. R.B. Saull, K. Tzamariudaki, R. G. Van de Water, T. S. Yoon, C. Frankl, M. Schneider, S. Weseler, G. Kernel, P. Kržan, E. Križnič, T. Podobnik, T. Živko, V. Balagura, I. Belyaev, S. Chechelnitsky, M. Danilov, A. Droutskoy, Yu Gershtein, A. Golutvin, I. Korolko, G. Kostina, D. Litvintsev, V. Lubimov, P. Pakhlov, S. Semenov, A. Snizhko, I. Tichomirov, Yu Zaitsev

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Abstract

An analysis of the reaction γ → η_c was performed in five different decay channels of the η_c: K_S⁰K^±π^∓, K⁺K^-π⁺π^-, 2π⁺2π^-, φφ and 2K⁺2k^-. A value Γ_γγ(η_c) = (11.3±4.2) keV was obtained for the radiative decay width by combining the results from the first four channels. Using our result on the two-photon width we also determined the branching ratio for the decay η_c → 2K⁺2K^-.

Original language	English
Pages (from-to)	390-396
Number of pages	7
Journal	Physics Letters B
Volume	338
Issue number	2-3
DOIs	https://doi.org/10.1016/0370-2693(94)91395-1
State	Published - 27 Oct 1994
Externally published	Yes

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10.1016/0370-2693(94)91395-1

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Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Reßing, D., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, A., Lindner, A., Schieber, M., ... Zaitsev, Y. (1994). Determination of the radiative decay width of the η_c meson. Physics Letters B, 338(2-3), 390-396. https://doi.org/10.1016/0370-2693(94)91395-1

@article{05772a40c3004dc1b4f635445ead81e2,

title = "Determination of the radiative decay width of the ηc meson",

abstract = "An analysis of the reaction γ → ηc was performed in five different decay channels of the ηc: KS0K±π∓, K+K-π+π-, 2π+2π-, φφ and 2K+2k-. A value Γγγ(ηc) = (11.3±4.2) keV was obtained for the radiative decay width by combining the results from the first four channels. Using our result on the two-photon width we also determined the branching ratio for the decay ηc → 2K+2K-.",

author = "H. Albrecht and T. Hamacher and Hofmann, {R. P.} and T. Kirchhoff and R. Mankel and A. Nau and S. Nowak and D. Re{\ss}ing and H. Schr{\"o}der and Schulz, {H. D.} and M. Walter and R. Wurth and C. Hast and H. Kapitza and H. Kolanoski and A. Kosche and A. Lange and A. Lindner and M. Schieber and T. Siegmund and B. Spaan and H. Thurn and D. T{\"o}pfer and D. Wegener and P. Eckstein and M. Schmidtler and M. Schramm and Schubert, {K. R.} and R. Schwierz and R. Waldi and K. Reim and H. Wegener and R. Eckmann and H. Kuipers and O. Mai and R. Mundt and T. Oest and R. Reiner and W. Schmidt-Parzefall and J. Stiewe and S. Werner and K. Ehret and W. Hofmann and A. H{\"u}pper and Kn{\"o}pfle, {K. T.} and J. Spengler and P. Krieger and MacFarlane, {D. B.} and Prentice, {J. D.} and Saull, {P. R.B.} and K. Tzamariudaki and {Van de Water}, {R. G.} and Yoon, {T. S.} and C. Frankl and M. Schneider and S. Weseler and G. Kernel and P. Kr{\v z}an and E. Kri{\v z}ni{\v c} and T. Podobnik and T. {\v Z}ivko and V. Balagura and I. Belyaev and S. Chechelnitsky and M. Danilov and A. Droutskoy and Yu Gershtein and A. Golutvin and I. Korolko and G. Kostina and D. Litvintsev and V. Lubimov and P. Pakhlov and S. Semenov and A. Snizhko and I. Tichomirov and Yu Zaitsev",

note = "Funding Information: I DESY, IfH Zeuthen 2 Supported by the German Bundesministerium for Forschung und Technologic, under contract number 05413051P. 3 Supported by the German Bundesministerium for Forschung und Technologie, under contract number 056DDI 1P. 4 Supported by the German Bundesministerium ?dr Forschung und Technologie, under contract number 054ERI2R 5 Supported by the German Bundesministerium ?dr Forschung und Technologie, under contract number 055HD21P. 6 University of Toronto, Toronto, Ontario, Canada. 7 McGill University, Montreal, Quebec, Canada. 8 Supported by the Natural Sciences and Eagineering Research Council, Canada. 9 Supported by the German Bundesministerium ?dr Forschung und Technologie, under contract number 055KA l 1R l0 Supported by the Ministry of Science and Technology of the Republic of SIovenia and the Intemationales Bilro KfA, Jiilich.",

year = "1994",

month = oct,

day = "27",

doi = "10.1016/0370-2693(94)91395-1",

language = "English",

volume = "338",

pages = "390--396",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "2-3",

}

Albrecht, H, Hamacher, T, Hofmann, RP, Kirchhoff, T, Mankel, R, Nau, A, Nowak, S, Reßing, D, Schröder, H, Schulz, HD, Walter, M, Wurth, R, Hast, C, Kapitza, H, Kolanoski, H, Kosche, A, Lange, A, Lindner, A, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Töpfer, D, Wegener, D, Eckstein, P, Schmidtler, M, Schramm, M, Schubert, KR, Schwierz, R, Waldi, R, Reim, K, Wegener, H, Eckmann, R, Kuipers, H, Mai, O, Mundt, R, Oest, T, Reiner, R, Schmidt-Parzefall, W, Stiewe, J, Werner, S, Ehret, K, Hofmann, W, Hüpper, A, Knöpfle, KT, Spengler, J, Krieger, P, MacFarlane, DB, Prentice, JD, Saull, PRB, Tzamariudaki, K, Van de Water, RG, Yoon, TS, Frankl, C, Schneider, M, Weseler, S, Kernel, G, Kržan, P, Križnič, E, Podobnik, T, Živko, T, Balagura, V, Belyaev, I, Chechelnitsky, S, Danilov, M, Droutskoy, A, Gershtein, Y, Golutvin, A, Korolko, I, Kostina, G, Litvintsev, D, Lubimov, V, Pakhlov, P, Semenov, S, Snizhko, A, Tichomirov, I & Zaitsev, Y 1994, 'Determination of the radiative decay width of the η_c meson', Physics Letters B, vol. 338, no. 2-3, pp. 390-396. https://doi.org/10.1016/0370-2693(94)91395-1

TY - JOUR

T1 - Determination of the radiative decay width of the ηc meson

AU - Albrecht, H.

AU - Hamacher, T.

AU - Hofmann, R. P.

AU - Kirchhoff, T.

AU - Mankel, R.

AU - Nau, A.

AU - Nowak, S.

AU - Reßing, D.

AU - Schröder, H.

AU - Schulz, H. D.

AU - Walter, M.

AU - Wurth, R.

AU - Hast, C.

AU - Kapitza, H.

AU - Kolanoski, H.

AU - Kosche, A.

AU - Lange, A.

AU - Lindner, A.

AU - Schieber, M.

AU - Siegmund, T.

AU - Spaan, B.

AU - Thurn, H.

AU - Töpfer, D.

AU - Wegener, D.

AU - Eckstein, P.

AU - Schmidtler, M.

AU - Schramm, M.

AU - Schubert, K. R.

AU - Schwierz, R.

AU - Waldi, R.

AU - Reim, K.

AU - Wegener, H.

AU - Eckmann, R.

AU - Kuipers, H.

AU - Mai, O.

AU - Mundt, R.

AU - Oest, T.

AU - Reiner, R.

AU - Schmidt-Parzefall, W.

AU - Stiewe, J.

AU - Werner, S.

AU - Ehret, K.

AU - Hofmann, W.

AU - Hüpper, A.

AU - Knöpfle, K. T.

AU - Spengler, J.

AU - Krieger, P.

AU - MacFarlane, D. B.

AU - Prentice, J. D.

AU - Saull, P. R.B.

AU - Tzamariudaki, K.

AU - Van de Water, R. G.

AU - Yoon, T. S.

AU - Frankl, C.

AU - Schneider, M.

AU - Weseler, S.

AU - Kernel, G.

AU - Kržan, P.

AU - Križnič, E.

AU - Podobnik, T.

AU - Živko, T.

AU - Balagura, V.

AU - Belyaev, I.

AU - Chechelnitsky, S.

AU - Danilov, M.

AU - Droutskoy, A.

AU - Gershtein, Yu

AU - Golutvin, A.

AU - Korolko, I.

AU - Kostina, G.

AU - Litvintsev, D.

AU - Lubimov, V.

AU - Pakhlov, P.

AU - Semenov, S.

AU - Snizhko, A.

AU - Tichomirov, I.

AU - Zaitsev, Yu

N1 - Funding Information: I DESY, IfH Zeuthen 2 Supported by the German Bundesministerium for Forschung und Technologic, under contract number 05413051P. 3 Supported by the German Bundesministerium for Forschung und Technologie, under contract number 056DDI 1P. 4 Supported by the German Bundesministerium ?dr Forschung und Technologie, under contract number 054ERI2R 5 Supported by the German Bundesministerium ?dr Forschung und Technologie, under contract number 055HD21P. 6 University of Toronto, Toronto, Ontario, Canada. 7 McGill University, Montreal, Quebec, Canada. 8 Supported by the Natural Sciences and Eagineering Research Council, Canada. 9 Supported by the German Bundesministerium ?dr Forschung und Technologie, under contract number 055KA l 1R l0 Supported by the Ministry of Science and Technology of the Republic of SIovenia and the Intemationales Bilro KfA, Jiilich.

PY - 1994/10/27

Y1 - 1994/10/27

N2 - An analysis of the reaction γ → ηc was performed in five different decay channels of the ηc: KS0K±π∓, K+K-π+π-, 2π+2π-, φφ and 2K+2k-. A value Γγγ(ηc) = (11.3±4.2) keV was obtained for the radiative decay width by combining the results from the first four channels. Using our result on the two-photon width we also determined the branching ratio for the decay ηc → 2K+2K-.

AB - An analysis of the reaction γ → ηc was performed in five different decay channels of the ηc: KS0K±π∓, K+K-π+π-, 2π+2π-, φφ and 2K+2k-. A value Γγγ(ηc) = (11.3±4.2) keV was obtained for the radiative decay width by combining the results from the first four channels. Using our result on the two-photon width we also determined the branching ratio for the decay ηc → 2K+2K-.

UR - http://www.scopus.com/inward/record.url?scp=0001158025&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(94)91395-1

DO - 10.1016/0370-2693(94)91395-1

M3 - Article

AN - SCOPUS:0001158025

SN - 0370-2693

VL - 338

SP - 390

EP - 396

JO - Physics Letters B

JF - Physics Letters B

IS - 2-3

ER -

Determination of the radiative decay width of the η_c meson

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