Measurement of γγ widths of charmonium states

W. Y. Chen; R. L. McIlwain; D. H. Miller; C. R. Ng; S. F. Schaffner; E. I. Shibata; W. M. Yao; K. Sparks; E. H. Thorndike; C. H. Wang; M. S. Alam; I. J. Kim; W. C. Li; X. C. Lou; C. R. Sun; P. N. Wang; M. I. Zoeller; D. Bortoletto; M. Goldberg; N. Horwitz; V. Jain; M. D. Mestayer; G. C. Moneti; V. Sharma; I. P.J. Shipsey; T. Skwarnicki; M. Thulasidas; S. E. Csorna; T. Letson; J. Alexander; M. Artuso; C. Bebek; K. Berkelman; D. G. Cassel; E. Cheu; D. M. Coffman; G. Crawford; J. W. DeWire; P. S. Dell; R. Ehrlich; R. S. Galik; B. Gittlman; S. W. Gray; A. M. Halling; D. L. Hartill; B. K. Heltsley; J. Kandaswamy; N. Katayama; D. L. Kreinick; J. D. Lewis; N. B. Mistry; J. Mueller; R. Namjoshi; S. Nandi; E. Nordberg; C. O'Grady; D. Peterson; M. Pisharody; D. Riley; M. Sapper; A. Silverman; S. Stone; H. Worden; M. Worris; A. J. Sadoff; P. Avery; D. Besson; L. Garren; J. Yelton; T. Bowcock; K. Kinoshita; F. M. Pipkin; M. Procario; Richard Wilson; J. Wolinski; D. Xiao; R. Ammar; P. Baringer; D. Coppage; P. Haas; Ha Lam; A. Jawahery; C. H. Park; Y. Kubota; J. K. Nelson; D. Perticone; R. Poling; R. Fulton; M. Hempstead; T. Jensen; D. R. Johnson; H. Kagan; R. Kass; F. Morrow; J. Whitmore; P. Wilson

doi:10.1016/0370-2693(90)90975-C

Measurement of γγ widths of charmonium states

W. Y. Chen
, R. L. McIlwain
, D. H. Miller
, C. R. Ng
, S. F. Schaffner
, E. I. Shibata
, W. M. Yao
, K. Sparks
, E. H. Thorndike
, C. H. Wang
, M. S. Alam
, I. J. Kim
, W. C. Li
, X. C. Lou
, C. R. Sun
, P. N. Wang
, M. I. Zoeller
, D. Bortoletto
, M. Goldberg
, N. Horwitz

V. Jain, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P.J. Shipsey, T. Skwarnicki, M. Thulasidas, S. E. Csorna, T. Letson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Dell, R. Ehrlich, R. S. Galik, B. Gittlman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, C. O'Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, R. Ammar, P. Baringer, D. Coppage, P. Haas, Ha Lam, A. Jawahery, C. H. Park, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson

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Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γ_γγ(η_c)=5.9^+2.1_-1.8±1.9 keV, and we have obtained 95% CL upper limits of Γ_γγ(X_c0)<6.2 keV and Γ_γγ(X_c2)<1.0 keV.

Original language	English
Pages (from-to)	169-174
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	243
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(90)90975-C
State	Published - Jun 21 1990
Externally published	Yes

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10.1016/0370-2693(90)90975-C

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Chen, W. Y., McIlwain, R. L., Miller, D. H., Ng, C. R., Schaffner, S. F., Shibata, E. I., Yao, W. M., Sparks, K., Thorndike, E. H., Wang, C. H., Alam, M. S., Kim, I. J., Li, W. C., Lou, X. C., Sun, C. R., Wang, P. N., Zoeller, M. I., Bortoletto, D., Goldberg, M., ... Wilson, P. (1990). Measurement of γγ widths of charmonium states. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 243(1-2), 169-174. https://doi.org/10.1016/0370-2693(90)90975-C

@article{1db78cbf6cff413493b7b40cae98c7c6,

title = "Measurement of γγ widths of charmonium states",

abstract = "Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γγγ(ηc)=5.9+2.1-1.8±1.9 keV, and we have obtained 95\% CL upper limits of Γγγ(Xc0)<6.2 keV and Γγγ(Xc2)<1.0 keV.",

author = "Chen, \{W. Y.\} and McIlwain, \{R. L.\} and Miller, \{D. H.\} and Ng, \{C. R.\} and Schaffner, \{S. F.\} and Shibata, \{E. I.\} and Yao, \{W. M.\} and K. Sparks and Thorndike, \{E. H.\} and Wang, \{C. H.\} and Alam, \{M. S.\} and Kim, \{I. J.\} and Li, \{W. C.\} and Lou, \{X. C.\} and Sun, \{C. R.\} and Wang, \{P. N.\} and Zoeller, \{M. I.\} and D. Bortoletto and M. Goldberg and N. Horwitz and V. Jain and Mestayer, \{M. D.\} and Moneti, \{G. C.\} and V. Sharma and Shipsey, \{I. P.J.\} and T. Skwarnicki and M. Thulasidas and Csorna, \{S. E.\} and T. Letson and J. Alexander and M. Artuso and C. Bebek and K. Berkelman and Cassel, \{D. G.\} and E. Cheu and Coffman, \{D. M.\} and G. Crawford and DeWire, \{J. W.\} and Dell, \{P. S.\} and R. Ehrlich and Galik, \{R. S.\} and B. Gittlman and Gray, \{S. W.\} and Halling, \{A. M.\} and Hartill, \{D. L.\} and Heltsley, \{B. K.\} and J. Kandaswamy and N. Katayama and Kreinick, \{D. L.\} and Lewis, \{J. D.\} and Mistry, \{N. B.\} and J. Mueller and R. Namjoshi and S. Nandi and E. Nordberg and C. O'Grady and D. Peterson and M. Pisharody and D. Riley and M. Sapper and A. Silverman and S. Stone and H. Worden and M. Worris and Sadoff, \{A. J.\} and P. Avery and D. Besson and L. Garren and J. Yelton and T. Bowcock and K. Kinoshita and Pipkin, \{F. M.\} and M. Procario and Richard Wilson and J. Wolinski and D. Xiao and R. Ammar and P. Baringer and D. Coppage and P. Haas and Ha Lam and A. Jawahery and Park, \{C. H.\} and Y. Kubota and Nelson, \{J. K.\} and D. Perticone and R. Poling and R. Fulton and M. Hempstead and T. Jensen and Johnson, \{D. R.\} and H. Kagan and R. Kass and F. Morrow and J. Whitmore and P. Wilson",

year = "1990",

month = jun,

day = "21",

doi = "10.1016/0370-2693(90)90975-C",

language = "English",

volume = "243",

pages = "169--174",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Chen, WY, McIlwain, RL, Miller, DH, Ng, CR, Schaffner, SF, Shibata, EI, Yao, WM, Sparks, K, Thorndike, EH, Wang, CH, Alam, MS, Kim, IJ, Li, WC, Lou, XC, Sun, CR, Wang, PN, Zoeller, MI, Bortoletto, D, Goldberg, M, Horwitz, N, Jain, V, Mestayer, MD, Moneti, GC, Sharma, V, Shipsey, IPJ, Skwarnicki, T, Thulasidas, M, Csorna, SE, Letson, T, Alexander, J, Artuso, M, Bebek, C, Berkelman, K, Cassel, DG, Cheu, E, Coffman, DM, Crawford, G, DeWire, JW, Dell, PS, Ehrlich, R, Galik, RS, Gittlman, B, Gray, SW, Halling, AM, Hartill, DL, Heltsley, BK, Kandaswamy, J, Katayama, N, Kreinick, DL, Lewis, JD, Mistry, NB, Mueller, J, Namjoshi, R, Nandi, S, Nordberg, E, O'Grady, C, Peterson, D, Pisharody, M, Riley, D, Sapper, M, Silverman, A, Stone, S, Worden, H, Worris, M, Sadoff, AJ, Avery, P, Besson, D, Garren, L, Yelton, J, Bowcock, T, Kinoshita, K, Pipkin, FM, Procario, M, Wilson, R, Wolinski, J, Xiao, D, Ammar, R, Baringer, P, Coppage, D, Haas, P, Lam, H, Jawahery, A, Park, CH, Kubota, Y, Nelson, JK, Perticone, D, Poling, R, Fulton, R, Hempstead, M, Jensen, T, Johnson, DR, Kagan, H, Kass, R, Morrow, F, Whitmore, J & Wilson, P 1990, 'Measurement of γγ widths of charmonium states', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 243, no. 1-2, pp. 169-174. https://doi.org/10.1016/0370-2693(90)90975-C

TY - JOUR

T1 - Measurement of γγ widths of charmonium states

AU - Chen, W. Y.

AU - McIlwain, R. L.

AU - Miller, D. H.

AU - Ng, C. R.

AU - Schaffner, S. F.

AU - Shibata, E. I.

AU - Yao, W. M.

AU - Sparks, K.

AU - Thorndike, E. H.

AU - Wang, C. H.

AU - Alam, M. S.

AU - Kim, I. J.

AU - Li, W. C.

AU - Lou, X. C.

AU - Sun, C. R.

AU - Wang, P. N.

AU - Zoeller, M. I.

AU - Bortoletto, D.

AU - Goldberg, M.

AU - Horwitz, N.

AU - Jain, V.

AU - Mestayer, M. D.

AU - Moneti, G. C.

AU - Sharma, V.

AU - Shipsey, I. P.J.

AU - Skwarnicki, T.

AU - Thulasidas, M.

AU - Csorna, S. E.

AU - Letson, T.

AU - Alexander, J.

AU - Artuso, M.

AU - Bebek, C.

AU - Berkelman, K.

AU - Cassel, D. G.

AU - Cheu, E.

AU - Coffman, D. M.

AU - Crawford, G.

AU - DeWire, J. W.

AU - Dell, P. S.

AU - Ehrlich, R.

AU - Galik, R. S.

AU - Gittlman, B.

AU - Gray, S. W.

AU - Halling, A. M.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Kandaswamy, J.

AU - Katayama, N.

AU - Kreinick, D. L.

AU - Lewis, J. D.

AU - Mistry, N. B.

AU - Mueller, J.

AU - Namjoshi, R.

AU - Nandi, S.

AU - Nordberg, E.

AU - O'Grady, C.

AU - Peterson, D.

AU - Pisharody, M.

AU - Riley, D.

AU - Sapper, M.

AU - Silverman, A.

AU - Stone, S.

AU - Worden, H.

AU - Worris, M.

AU - Sadoff, A. J.

AU - Avery, P.

AU - Besson, D.

AU - Garren, L.

AU - Yelton, J.

AU - Bowcock, T.

AU - Kinoshita, K.

AU - Pipkin, F. M.

AU - Procario, M.

AU - Wilson, Richard

AU - Wolinski, J.

AU - Xiao, D.

AU - Ammar, R.

AU - Baringer, P.

AU - Coppage, D.

AU - Haas, P.

AU - Lam, Ha

AU - Jawahery, A.

AU - Park, C. H.

AU - Kubota, Y.

AU - Nelson, J. K.

AU - Perticone, D.

AU - Poling, R.

AU - Fulton, R.

AU - Hempstead, M.

AU - Jensen, T.

AU - Johnson, D. R.

AU - Kagan, H.

AU - Kass, R.

AU - Morrow, F.

AU - Whitmore, J.

AU - Wilson, P.

PY - 1990/6/21

Y1 - 1990/6/21

N2 - Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γγγ(ηc)=5.9+2.1-1.8±1.9 keV, and we have obtained 95% CL upper limits of Γγγ(Xc0)<6.2 keV and Γγγ(Xc2)<1.0 keV.

AB - Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γγγ(ηc)=5.9+2.1-1.8±1.9 keV, and we have obtained 95% CL upper limits of Γγγ(Xc0)<6.2 keV and Γγγ(Xc2)<1.0 keV.

UR - https://www.scopus.com/pages/publications/0001737794

U2 - 10.1016/0370-2693(90)90975-C

DO - 10.1016/0370-2693(90)90975-C

M3 - Article

AN - SCOPUS:0001737794

SN - 0370-2693

VL - 243

SP - 169

EP - 174

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

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

IS - 1-2

ER -

Measurement of γγ widths of charmonium states

Abstract

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