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Your search keyword '"Tarbert, C. M."' showing total 3 results
Start Over Author "Tarbert, C. M." Journal phys.rev.d
3 results on '"Tarbert, C. M."'

1. Study of psi(2S) Decays to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} and Search for p bar{p} Threshold Enhancements

Author

CLEO Collaboration, Alexander, J. P., Cassel, D. G., Das, S., Ehrlich, R., Fields, L., Gibbons, L., Gray, S. W., Hartill, D. L., Heltsley, B. K., Kreinick, D. L., Kuznetsov, V. E., Patterson, J. R., Peterson, D., Riley, D., Ryd, A., Sadoff, A. J., Shi, X., Sun, W. M., Yelton, J., Rubin, P., Lowrey, N., Mehrabyan, S., Selen, M., Wiss, J., Adams, S., Kornicer, M., Mitchell, R. E., Shepherd, M. R., Tarbert, C. M., Besson, D., Pedlar, T. K., Xavier, J., Cronin-Hennessy, D., Hietala, J., Zweber, P., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Xiao, T., Brisbane, S., Libby, J., Martin, L., Powell, A., Spradlin, P., Wilkinson, G., Mendez, H., Ge, J. Y., Miller, D. H., Shipsey, I. P. J., Xin, B., Adams, G. S., Hu, D., Moziak, B., Napolitano, J., Ecklund, K. M., Insler, J., Muramatsu, H., Park, C. S., Pearson, L. J., Thorndike, E. H., Yang, F., Ricciardi, S., Thomas, C., Artuso, M., Blusk, S., Mountain, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, L. M., Bonvicini, G., Cinabro, D., Lincoln, A., Smith, M. J., Zhou, P., Zhu, J., Naik, P., Rademacker, J., Asner, D. M., Edwards, K. W., Randrianarivony, K., Tatishvili, G., Briere, R. A., Vogel, H., Onyisi, P. U. E., and Rosner, J. L.

Subjects
High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract

The decays of psi(2S) into gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} have been studied with the CLEO-c detector using a sample of 24.5 million psi(2S) events obtained from e^+e^- annihilations at sqrt{s} = 3686 MeV. The data show evidence for the excitation of several N^* resonances in p pi^0 and p eta channels in pi^0 p bar{p} and eta p bar{p} decays, and f_2 states in gamma p bar{p} decay. Branching fractions for decays of psi(2S) to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} have been determined. No evidence for p bar{p} threshold enhancements was found in the reactions psi(2S)-> X p bar{p}, where X = gamma, pi^0, eta. We do, however, find confirming evidence for a p bar{p} threshold enhancement in J/psi-> gamma p bar{p} as previously reported by BES., 25 pages, 21 figures, accepted by PRD

Published
2010

2. Branching fractions for chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega

Author

CLEO Collaboration, Onyisi, P. U. E., Rosner, J. L., Alexander, J. P., Cassel, D. G., Das, S., Ehrlich, R., Fields, L., Gibbons, L., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hunt, J. M., Kreinick, D. L., Kuznetsov, V. E., Ledoux, J., Patterson, J. R., Peterson, D., Riley, D., Ryd, A., Sadoff, A. J., Shi, X., Sun, W. M., Yelton, J., Rubin, P., Lowrey, N., Mehrabyan, S., Selen, M., Wiss, J., Adams, S., Kornicer, M., Mitchell, R. E., Shepherd, M. R., Tarbert, C. M., Besson, D., Pedlar, T. K., Xavier, J., Cronin-Hennessy, D., Hietala, J., Zweber, P., Dobbs, S., Metreveli, Z., Seth, K. K., Xiao, T., Tomaradze, A., Brisbane, S., Libby, J., Martin, L., Powell, A., Spradlin, P., Wilkinson, G., Mendez, H., Ge, J. Y., Miller, D. H., Shipsey, I. P. J., Xin, B., Adams, G. S., Hu, D., Moziak, B., Napolitano, J., Ecklund, K. M., Insler, J., Muramatsu, H., Park, C. S., Thorndike, E. H., Yang, F., Ricciardi, S., Thomas, C., Artuso, M., Blusk, S., Mountain, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, L. M., Bonvicini, G., Cinabro, D., Lincoln, A., Smith, M. J., Zhou, P., Zhu, J., Naik, P., Rademacker, J., Asner, D. M., Edwards, K. W., Reed, J., Randrianarivony, K., Robichaud, A. N., Tatishvili, G., White, E. J., Briere, R. A., and Vogel, H.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract

Using a sample of 25.9 million psi(2S) decays acquired with the CLEO-c detector at the CESR e^+e^- collider, we report branching fractions for the decays chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega, with J=0,1,2. Our results for B(chi_cJ-> p p-bar pi^0) and B(chi_cJ-> p p-bar eta) are consistent with, but more precise than, previous measurements. Furthermore, we include the first measurement of B(chi_cJ-> p p-bar omega)., Comment: 11 pages, 5 figures, available through http://www.lns.cornell.edu/public/CLNS/, submitted to PRD(R)

Published
2010

3. Measurement of the eta_b(1S) mass and the branching fraction for Upsilon(3S) --> gamma eta_b(1S)

Author

The CLEO Collaboration, Bonvicini, G., Cinabro, D., Lincoln, A., Smith, M. J., Zhou, P., Zhu, J., Naik, P., Rademacker, J., Asner, D. M., Edwards, K. W., Reed, J., Robichaud, A. N., Tatishvili, G., White, E. J., Briere, R. A., Vogel, H., Onyisi, P. U. E., Rosner, J. L., Alexander, J. P., Cassel, D. G., Ehrlich, R., Fields, L., Galik, R. S., Gibbons, L., Gray, S. W., Hartill, D. L., Heltsley, B. K., Hunt, J. M., Kreinick, D. L., Kuznetsov, V. E., Ledoux, J., Mahlke-Krüger, H., Patterson, J. R., Peterson, D., Riley, D., Ryd, A., Sadoff, A. J., Shi, X., Stroiney, S., Sun, W. M., Yelton, J., Rubin, P., Lowrey, N., Mehrabyan, S., Selen, M., Wiss, J., Kornicer, M., Mitchell, R. E., Shepherd, M. R., Tarbert, C. M., Besson, D., Pedlar, T. K., Xavier, J., Cronin-Hennessy, D., Gao, K. Y., Hietala, J., Poling, R., Zweber, P., Dobbs, S., Metreveli, Z., Seth, K. K., Tan, B. J. Y., Tomaradze, A., Brisbane, S., Libby, J., Martin, L., Powell, A., Spradlin, P., Thomas, C., Wilkinson, G., Mendez, H., Ge, J. Y., Miller, D. H., Shipsey, I. P. J., Xin, B., Adams, G. S., Hu, D., Moziak, B., Napolitano, J., Ecklund, K. M., Insler, J., Muramatsu, H., Park, C. S., Thorndike, E. H., Yang, F., Artuso, M., Blusk, S., Khalil, S., Mountain, R., Randrianarivony, K., Skwarnicki, T., Wang, J. C., and Zhang, L. M.

Subjects
High Energy Physics - Experiment
Abstract

We report evidence for the ground state of bottomonium, eta_b(1S), in the radiative decay Upsilon(3S) --> gamma eta_b in e^+e^- annihilation data taken with the CLEO III detector. Using 6 million Upsilon(3S) decays, and assuming Gamma(eta_b) = 10 MeV/c^2, we obtain B(Upsilon(3S) --> gamma eta_b) = (7.1 +- 1.8 +- 1.1) X 10^{-4}, where the first error is statistical and the second is systematic. The statistical significance is about 4 sigma. The mass is determined to be M(eta_b) = 9391.8 +- 6.6 +- 2.0 MeV/c^2, which corresponds to the hyperfine splitting Delta M_{hf}(1S)_b = 68.5 +- 6.6 +- 2.0 MeV/c^2. Using 9 million Upsilon(2S) decays, we place an upper limit on the corresponding Y(2S) decay, B(Y(2S) --> gamma eta_b) < 8.4 X 10^{-4} at 90 % confidence level., Comment: 10 pages, 3 figures, accepted by Phyical Review D Rapid Communications

Published
2009

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