First observation of a [Formula Presented] state

G. Bonvicini; D. Cinabro; M. Dubrovin; A. Bornheim; E. Lipeles; S. P. Pappas; A. Shapiro; A. J. Weinstein; R. A. Briere; G. P. Chen; T. Ferguson; G. Tatishvili; H. Vogel; M. E. Watkins; N. E. Adam; J. P. Alexander; K. Berkelman; V. Boisvert; D. G. Cassel; J. E. Duboscq; K. M. Ecklund; R. Ehrlich; R. S. Galik; L. Gibbons; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; L. Hsu; C. D. Jones; J. Kandaswamy; D. L. Kreinick; V. E. Kuznetsov; A. Magerkurth; H. Mahlke-Krüger; T. O. Meyer; J. R. Patterson; T. K. Pedlar; D. Peterson; J. Pivarski; D. Riley; J. L. Rosner; A. J. Sadoff; H. Schwarthoff; M. R. Shepherd; W. M. Sun; J. G. Thayer; D. Urner; T. Wilksen; M. Weinberger; S. B. Athar; P. Avery; L. Breva-Newell; V. Potlia; H. Stoeck; J. Yelton; B. I. Eisenstein; G. D. Gollin; I. Karliner; N. Lowrey; P. Naik; C. Sedlack; M. Selen; J. J. Thaler; J. Williams; K. W. Edwards; D. Besson; K. Y. Gao; D. T. Gong; Y. Kubota; S. Z. Li; R. Poling; A. W. Scott; A. Smith; C. J. Stepaniak; J. Urheim; Z. Metreveli; K. K. Seth; A. Tomaradze; P. Zweber; J. Ernst; K. Arms; E. Eckhart; K. K. Gan; C. Gwon; H. Severini; P. Skubic; D. M. Asner; S. A. Dytman; S. Mehrabyan; J. A. Mueller; S. Nam; V. Savinov; G. S. Huang; D. H. Miller; V. Pavlunin; B. Sanghi; E. I. Shibata; I. P.J. Shipsey; G. S. Adams; M. Chasse; J. P. Cummings; I. Danko; J. Napolitano; D. Cronin-Hennessy; C. S. Park; W. Park; J. B. Thayer; E. H. Thorndike; T. E. Coan; Y. S. Gao; F. Liu; R. Stroynowski; M. Artuso; C. Boulahouache; S. Blusk; J. Butt; E. Dambasuren; O. Dorjkhaidav; J. Haynes; N. Menaa; R. Mountain; H. Muramatsu; R. Nandakumar; R. Redjimi; R. Sia; T. Skwarnicki; S. Stone; J. C. Wang; Kevin Zhang; A. H. Mahmood; S. E. Csorna

doi:10.1103/PhysRevD.70.032001

First observation of a [Formula Presented] state

G. Bonvicini, D. Cinabro, M. Dubrovin, A. Bornheim, E. Lipeles, S. P. Pappas, A. Shapiro, A. J. Weinstein, R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, N. E. Adam, J. P. Alexander, K. Berkelman, V. Boisvert, D. G. Cassel, J. E. DuboscqK. M. Ecklund, R. Ehrlich, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, A. Magerkurth, H. Mahlke-Krüger, T. O. Meyer, J. R. Patterson, T. K. Pedlar, D. Peterson, J. Pivarski, D. Riley, J. L. Rosner, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, W. M. Sun, J. G. Thayer, D. Urner, T. Wilksen, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, V. Potlia, H. Stoeck, J. Yelton, B. I. Eisenstein, G. D. Gollin, I. Karliner, N. Lowrey, P. Naik, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, D. Besson, K. Y. Gao, D. T. Gong, Y. Kubota, S. Z. Li, R. Poling, A. W. Scott, A. Smith, C. J. Stepaniak, J. Urheim, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, K. Arms, E. Eckhart, K. K. Gan, C. Gwon, H. Severini, P. Skubic, D. M. Asner, S. A. Dytman, S. Mehrabyan, J. A. Mueller, S. Nam, V. Savinov, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, E. I. Shibata, I. P.J. Shipsey, G. S. Adams, M. Chasse, J. P. Cummings, I. Danko, J. Napolitano, D. Cronin-Hennessy, C. S. Park, W. Park, J. B. Thayer, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, R. Stroynowski, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, E. Dambasuren, O. Dorjkhaidav, J. Haynes, N. Menaa, R. Mountain, H. Muramatsu, R. Nandakumar, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, Kevin Zhang, A. H. Mahmood, S. E. Csorna

Department of Physics

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

1 Scopus citations

Abstract

We present the first evidence for the production of [Formula Presented] states in the four-photon cascade, [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] followed by the [Formula Presented] annihilation into [Formula Presented] or [Formula Presented] The signal has a significance of 10.2 standard deviations. The measured product branching ratio for these five decays, [Formula Presented] is consistent with the theoretical estimates. The data are dominated by the production of one [Formula Presented] state consistent with the [Formula Presented] assignment. Its mass is determined to be [Formula Presented] MeV, which is consistent with the predictions from potential models and lattice QCD calculations. We also searched for [Formula Presented] [Formula Presented] followed by either [Formula Presented] or [Formula Presented] We find no evidence for such decays and set upper limits on the product branching ratios.

Original language	English (US)
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	70
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.70.032001
State	Published - 2004

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.70.032001

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Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Weinstein, A. J., Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., ... Csorna, S. E. (2004). First observation of a [Formula Presented] state. Physical Review D - Particles, Fields, Gravitation and Cosmology, 70(3). https://doi.org/10.1103/PhysRevD.70.032001

First observation of a [Formula Presented] state. / Bonvicini, G.; Cinabro, D.; Dubrovin, M.; Bornheim, A.; Lipeles, E.; Pappas, S. P.; Shapiro, A.; Weinstein, A. J.; Briere, R. A.; Chen, G. P.; Ferguson, T.; Tatishvili, G.; Vogel, H.; Watkins, M. E.; Adam, N. E.; Alexander, J. P.; Berkelman, K.; Boisvert, V.; Cassel, D. G.; Duboscq, J. E.; Ecklund, K. M.; Ehrlich, R.; Galik, R. S.; Gibbons, L.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hsu, L.; Jones, C. D.; Kandaswamy, J.; Kreinick, D. L.; Kuznetsov, V. E.; Magerkurth, A.; Mahlke-Krüger, H.; Meyer, T. O.; Patterson, J. R.; Pedlar, T. K.; Peterson, D.; Pivarski, J.; Riley, D.; Rosner, J. L.; Sadoff, A. J.; Schwarthoff, H.; Shepherd, M. R.; Sun, W. M.; Thayer, J. G.; Urner, D.; Wilksen, T.; Weinberger, M.; Athar, S. B.; Avery, P.; Breva-Newell, L.; Potlia, V.; Stoeck, H.; Yelton, J.; Eisenstein, B. I.; Gollin, G. D.; Karliner, I.; Lowrey, N.; Naik, P.; Sedlack, C.; Selen, M.; Thaler, J. J.; Williams, J.; Edwards, K. W.; Besson, D.; Gao, K. Y.; Gong, D. T.; Kubota, Y.; Li, S. Z.; Poling, R.; Scott, A. W.; Smith, A.; Stepaniak, C. J.; Urheim, J.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Zweber, P.; Ernst, J.; Arms, K.; Eckhart, E.; Gan, K. K.; Gwon, C.; Severini, H.; Skubic, P.; Asner, D. M.; Dytman, S. A.; Mehrabyan, S.; Mueller, J. A.; Nam, S.; Savinov, V.; Huang, G. S.; Miller, D. H.; Pavlunin, V.; Sanghi, B.; Shibata, E. I.; Shipsey, I. P.J.; Adams, G. S.; Chasse, M.; Cummings, J. P.; Danko, I.; Napolitano, J.; Cronin-Hennessy, D.; Park, C. S.; Park, W.; Thayer, J. B.; Thorndike, E. H.; Coan, T. E.; Gao, Y. S.; Liu, F.; Stroynowski, R.; Artuso, M.; Boulahouache, C.; Blusk, S.; Butt, J.; Dambasuren, E.; Dorjkhaidav, O.; Haynes, J.; Menaa, N.; Mountain, R.; Muramatsu, H.; Nandakumar, R.; Redjimi, R.; Sia, R.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Zhang, Kevin; Mahmood, A. H.; Csorna, S. E.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 70, No. 3, 2004.

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

Bonvicini, G, Cinabro, D, Dubrovin, M, Bornheim, A, Lipeles, E, Pappas, SP, Shapiro, A, Weinstein, AJ, Briere, RA, Chen, GP, Ferguson, T, Tatishvili, G, Vogel, H, Watkins, ME, Adam, NE, Alexander, JP, Berkelman, K, Boisvert, V, Cassel, DG, Duboscq, JE, Ecklund, KM, Ehrlich, R, Galik, RS, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hsu, L, Jones, CD, Kandaswamy, J, Kreinick, DL, Kuznetsov, VE, Magerkurth, A, Mahlke-Krüger, H, Meyer, TO, Patterson, JR, Pedlar, TK, Peterson, D, Pivarski, J, Riley, D, Rosner, JL, Sadoff, AJ, Schwarthoff, H, Shepherd, MR, Sun, WM, Thayer, JG, Urner, D, Wilksen, T, Weinberger, M, Athar, SB, Avery, P, Breva-Newell, L, Potlia, V, Stoeck, H, Yelton, J, Eisenstein, BI, Gollin, GD, Karliner, I, Lowrey, N, Naik, P, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, Edwards, KW, Besson, D, Gao, KY, Gong, DT, Kubota, Y, Li, SZ, Poling, R, Scott, AW, Smith, A, Stepaniak, CJ, Urheim, J, Metreveli, Z, Seth, KK, Tomaradze, A, Zweber, P, Ernst, J, Arms, K, Eckhart, E, Gan, KK, Gwon, C, Severini, H, Skubic, P, Asner, DM, Dytman, SA, Mehrabyan, S, Mueller, JA, Nam, S, Savinov, V, Huang, GS, Miller, DH, Pavlunin, V, Sanghi, B, Shibata, EI, Shipsey, IPJ, Adams, GS, Chasse, M, Cummings, JP, Danko, I, Napolitano, J, Cronin-Hennessy, D, Park, CS, Park, W, Thayer, JB, Thorndike, EH, Coan, TE, Gao, YS, Liu, F, Stroynowski, R, Artuso, M, Boulahouache, C, Blusk, S, Butt, J, Dambasuren, E, Dorjkhaidav, O, Haynes, J, Menaa, N, Mountain, R, Muramatsu, H, Nandakumar, R, Redjimi, R, Sia, R, Skwarnicki, T , Stone, S, Wang, JC, Zhang, K, Mahmood, AH & Csorna, SE 2004, 'First observation of a [Formula Presented] state', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 70, no. 3. https://doi.org/10.1103/PhysRevD.70.032001

Bonvicini, G. ; Cinabro, D. ; Dubrovin, M. ; Bornheim, A. ; Lipeles, E. ; Pappas, S. P. ; Shapiro, A. ; Weinstein, A. J. ; Briere, R. A. ; Chen, G. P. ; Ferguson, T. ; Tatishvili, G. ; Vogel, H. ; Watkins, M. E. ; Adam, N. E. ; Alexander, J. P. ; Berkelman, K. ; Boisvert, V. ; Cassel, D. G. ; Duboscq, J. E. ; Ecklund, K. M. ; Ehrlich, R. ; Galik, R. S. ; Gibbons, L. ; Gittelman, B. ; Gray, S. W. ; Hartill, D. L. ; Heltsley, B. K. ; Hsu, L. ; Jones, C. D. ; Kandaswamy, J. ; Kreinick, D. L. ; Kuznetsov, V. E. ; Magerkurth, A. ; Mahlke-Krüger, H. ; Meyer, T. O. ; Patterson, J. R. ; Pedlar, T. K. ; Peterson, D. ; Pivarski, J. ; Riley, D. ; Rosner, J. L. ; Sadoff, A. J. ; Schwarthoff, H. ; Shepherd, M. R. ; Sun, W. M. ; Thayer, J. G. ; Urner, D. ; Wilksen, T. ; Weinberger, M. ; Athar, S. B. ; Avery, P. ; Breva-Newell, L. ; Potlia, V. ; Stoeck, H. ; Yelton, J. ; Eisenstein, B. I. ; Gollin, G. D. ; Karliner, I. ; Lowrey, N. ; Naik, P. ; Sedlack, C. ; Selen, M. ; Thaler, J. J. ; Williams, J. ; Edwards, K. W. ; Besson, D. ; Gao, K. Y. ; Gong, D. T. ; Kubota, Y. ; Li, S. Z. ; Poling, R. ; Scott, A. W. ; Smith, A. ; Stepaniak, C. J. ; Urheim, J. ; Metreveli, Z. ; Seth, K. K. ; Tomaradze, A. ; Zweber, P. ; Ernst, J. ; Arms, K. ; Eckhart, E. ; Gan, K. K. ; Gwon, C. ; Severini, H. ; Skubic, P. ; Asner, D. M. ; Dytman, S. A. ; Mehrabyan, S. ; Mueller, J. A. ; Nam, S. ; Savinov, V. ; Huang, G. S. ; Miller, D. H. ; Pavlunin, V. ; Sanghi, B. ; Shibata, E. I. ; Shipsey, I. P.J. ; Adams, G. S. ; Chasse, M. ; Cummings, J. P. ; Danko, I. ; Napolitano, J. ; Cronin-Hennessy, D. ; Park, C. S. ; Park, W. ; Thayer, J. B. ; Thorndike, E. H. ; Coan, T. E. ; Gao, Y. S. ; Liu, F. ; Stroynowski, R. ; Artuso, M. ; Boulahouache, C. ; Blusk, S. ; Butt, J. ; Dambasuren, E. ; Dorjkhaidav, O. ; Haynes, J. ; Menaa, N. ; Mountain, R. ; Muramatsu, H. ; Nandakumar, R. ; Redjimi, R. ; Sia, R. ; Skwarnicki, T. ; Stone, S. ; Wang, J. C. ; Zhang, Kevin ; Mahmood, A. H. ; Csorna, S. E. / First observation of a [Formula Presented] state. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2004 ; Vol. 70, No. 3.

@article{426743768192437e87bd91545dfebea6,

title = "First observation of a [Formula Presented] state",

abstract = "We present the first evidence for the production of [Formula Presented] states in the four-photon cascade, [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] followed by the [Formula Presented] annihilation into [Formula Presented] or [Formula Presented] The signal has a significance of 10.2 standard deviations. The measured product branching ratio for these five decays, [Formula Presented] is consistent with the theoretical estimates. The data are dominated by the production of one [Formula Presented] state consistent with the [Formula Presented] assignment. Its mass is determined to be [Formula Presented] MeV, which is consistent with the predictions from potential models and lattice QCD calculations. We also searched for [Formula Presented] [Formula Presented] followed by either [Formula Presented] or [Formula Presented] We find no evidence for such decays and set upper limits on the product branching ratios.",

author = "G. Bonvicini and D. Cinabro and M. Dubrovin and A. Bornheim and E. Lipeles and Pappas, {S. P.} and A. Shapiro and Weinstein, {A. J.} and Briere, {R. A.} and Chen, {G. P.} and T. Ferguson and G. Tatishvili and H. Vogel and Watkins, {M. E.} and Adam, {N. E.} and Alexander, {J. P.} and K. Berkelman and V. Boisvert and Cassel, {D. G.} and Duboscq, {J. E.} and Ecklund, {K. M.} and R. Ehrlich and Galik, {R. S.} and L. Gibbons and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and L. Hsu and Jones, {C. D.} and J. Kandaswamy and Kreinick, {D. L.} and Kuznetsov, {V. E.} and A. Magerkurth and H. Mahlke-Kr{\"u}ger and Meyer, {T. O.} and Patterson, {J. R.} and Pedlar, {T. K.} and D. Peterson and J. Pivarski and D. Riley and Rosner, {J. L.} and Sadoff, {A. J.} and H. Schwarthoff and Shepherd, {M. R.} and Sun, {W. M.} and Thayer, {J. G.} and D. Urner and T. Wilksen and M. Weinberger and Athar, {S. B.} and P. Avery and L. Breva-Newell and V. Potlia and H. Stoeck and J. Yelton and Eisenstein, {B. I.} and Gollin, {G. D.} and I. Karliner and N. Lowrey and P. Naik and C. Sedlack and M. Selen and Thaler, {J. J.} and J. Williams and Edwards, {K. W.} and D. Besson and Gao, {K. Y.} and Gong, {D. T.} and Y. Kubota and Li, {S. Z.} and R. Poling and Scott, {A. W.} and A. Smith and Stepaniak, {C. J.} and J. Urheim and Z. Metreveli and Seth, {K. K.} and A. Tomaradze and P. Zweber and J. Ernst and K. Arms and E. Eckhart and Gan, {K. K.} and C. Gwon and H. Severini and P. Skubic and Asner, {D. M.} and Dytman, {S. A.} and S. Mehrabyan and Mueller, {J. A.} and S. Nam and V. Savinov and Huang, {G. S.} and Miller, {D. H.} and V. Pavlunin and B. Sanghi and Shibata, {E. I.} and Shipsey, {I. P.J.} and Adams, {G. S.} and M. Chasse and Cummings, {J. P.} and I. Danko and J. Napolitano and D. Cronin-Hennessy and Park, {C. S.} and W. Park and Thayer, {J. B.} and Thorndike, {E. H.} and Coan, {T. E.} and Gao, {Y. S.} and F. Liu and R. Stroynowski and M. Artuso and C. Boulahouache and S. Blusk and J. Butt and E. Dambasuren and O. Dorjkhaidav and J. Haynes and N. Menaa and R. Mountain and H. Muramatsu and R. Nandakumar and R. Redjimi and R. Sia and T. Skwarnicki and S. Stone and Wang, {J. C.} and Kevin Zhang and Mahmood, {A. H.} and Csorna, {S. E.}",

year = "2004",

doi = "10.1103/PhysRevD.70.032001",

language = "English (US)",

volume = "70",

journal = "Physical Review D",

issn = "0556-2821",

number = "3",

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TY - JOUR

T1 - First observation of a [Formula Presented] state

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Dubrovin, M.

AU - Bornheim, A.

AU - Lipeles, E.

AU - Pappas, S. P.

AU - Shapiro, A.

AU - Weinstein, A. J.

AU - Briere, R. A.

AU - Chen, G. P.

AU - Ferguson, T.

AU - Tatishvili, G.

AU - Vogel, H.

AU - Watkins, M. E.

AU - Adam, N. E.

AU - Alexander, J. P.

AU - Berkelman, K.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Duboscq, J. E.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Galik, R. S.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hsu, L.

AU - Jones, C. D.

AU - Kandaswamy, J.

AU - Kreinick, D. L.

AU - Kuznetsov, V. E.

AU - Magerkurth, A.

AU - Mahlke-Krüger, H.

AU - Meyer, T. O.

AU - Patterson, J. R.

AU - Pedlar, T. K.

AU - Peterson, D.

AU - Pivarski, J.

AU - Riley, D.

AU - Rosner, J. L.

AU - Sadoff, A. J.

AU - Schwarthoff, H.

AU - Shepherd, M. R.

AU - Sun, W. M.

AU - Thayer, J. G.

AU - Urner, D.

AU - Wilksen, T.

AU - Weinberger, M.

AU - Athar, S. B.

AU - Avery, P.

AU - Breva-Newell, L.

AU - Potlia, V.

AU - Stoeck, H.

AU - Yelton, J.

AU - Eisenstein, B. I.

AU - Gollin, G. D.

AU - Karliner, I.

AU - Lowrey, N.

AU - Naik, P.

AU - Sedlack, C.

AU - Selen, M.

AU - Thaler, J. J.

AU - Williams, J.

AU - Edwards, K. W.

AU - Besson, D.

AU - Gao, K. Y.

AU - Gong, D. T.

AU - Kubota, Y.

AU - Li, S. Z.

AU - Poling, R.

AU - Scott, A. W.

AU - Smith, A.

AU - Stepaniak, C. J.

AU - Urheim, J.

AU - Metreveli, Z.

AU - Seth, K. K.

AU - Tomaradze, A.

AU - Zweber, P.

AU - Ernst, J.

AU - Arms, K.

AU - Eckhart, E.

AU - Gan, K. K.

AU - Gwon, C.

AU - Severini, H.

AU - Skubic, P.

AU - Asner, D. M.

AU - Dytman, S. A.

AU - Mehrabyan, S.

AU - Mueller, J. A.

AU - Nam, S.

AU - Savinov, V.

AU - Huang, G. S.

AU - Miller, D. H.

AU - Pavlunin, V.

AU - Sanghi, B.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

AU - Adams, G. S.

AU - Chasse, M.

AU - Cummings, J. P.

AU - Danko, I.

AU - Napolitano, J.

AU - Cronin-Hennessy, D.

AU - Park, C. S.

AU - Park, W.

AU - Thayer, J. B.

AU - Thorndike, E. H.

AU - Coan, T. E.

AU - Gao, Y. S.

AU - Liu, F.

AU - Stroynowski, R.

AU - Artuso, M.

AU - Boulahouache, C.

AU - Blusk, S.

AU - Butt, J.

AU - Dambasuren, E.

AU - Dorjkhaidav, O.

AU - Haynes, J.

AU - Menaa, N.

AU - Mountain, R.

AU - Muramatsu, H.

AU - Nandakumar, R.

AU - Redjimi, R.

AU - Sia, R.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Zhang, Kevin

AU - Mahmood, A. H.

AU - Csorna, S. E.

PY - 2004

Y1 - 2004

N2 - We present the first evidence for the production of [Formula Presented] states in the four-photon cascade, [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] followed by the [Formula Presented] annihilation into [Formula Presented] or [Formula Presented] The signal has a significance of 10.2 standard deviations. The measured product branching ratio for these five decays, [Formula Presented] is consistent with the theoretical estimates. The data are dominated by the production of one [Formula Presented] state consistent with the [Formula Presented] assignment. Its mass is determined to be [Formula Presented] MeV, which is consistent with the predictions from potential models and lattice QCD calculations. We also searched for [Formula Presented] [Formula Presented] followed by either [Formula Presented] or [Formula Presented] We find no evidence for such decays and set upper limits on the product branching ratios.

AB - We present the first evidence for the production of [Formula Presented] states in the four-photon cascade, [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] followed by the [Formula Presented] annihilation into [Formula Presented] or [Formula Presented] The signal has a significance of 10.2 standard deviations. The measured product branching ratio for these five decays, [Formula Presented] is consistent with the theoretical estimates. The data are dominated by the production of one [Formula Presented] state consistent with the [Formula Presented] assignment. Its mass is determined to be [Formula Presented] MeV, which is consistent with the predictions from potential models and lattice QCD calculations. We also searched for [Formula Presented] [Formula Presented] followed by either [Formula Presented] or [Formula Presented] We find no evidence for such decays and set upper limits on the product branching ratios.

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UR - http://www.scopus.com/inward/citedby.url?scp=85039593267&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.70.032001

DO - 10.1103/PhysRevD.70.032001

M3 - Article

AN - SCOPUS:85039593267

VL - 70

JO - Physical Review D

JF - Physical Review D

SN - 0556-2821

IS - 3

ER -