Relativistic Corrections to e+e- {yields} J/{psi} + {eta}c in a Potential Model

doi:10.1063/1.2714404

Title: Relativistic Corrections to e+e- {yields} J/{psi} + {eta}c in a Potential Model

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Abstract

We compute relativistic corrections to the process e+e- {yields} J/{psi} + {eta}c and find that they resolve the discrepancy between theory and experiment.

Authors:

Bodwin, Geoffrey T. ^[1]; Kang, Daekyoung; Kim, Taewon; Lee, Jungil; Yu, Chaehyun ^[2]

High Energy Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60517 (United States)
Department of Physics, Korea University, Seoul 136-701 (Korea, Republic of)

Publication Date:: Tue Feb 27 00:00:00 EST 2007

OSTI Identifier:: 21056842

Resource Type:: Journal Article

Resource Relation:: Journal Name: AIP Conference Proceedings; Journal Volume: 892; Journal Issue: 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714404; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CORRECTIONS; ELECTRON-POSITRON INTERACTIONS; ETA C-2980 MESONS; J PSI-3097 MESONS; PARTICLE MODELS; PARTICLE PRODUCTION; POTENTIALS; RELATIVISTIC RANGE

Citation Formats


                    Bodwin, Geoffrey T., Kang, Daekyoung, Kim, Taewon, Lee, Jungil, and Yu, Chaehyun. Relativistic Corrections to e+e- {yields} J/{psi} + {eta}c in a Potential Model.  United States: N. p., 2007. 
        Web.  doi:10.1063/1.2714404.

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                    Bodwin, Geoffrey T., Kang, Daekyoung, Kim, Taewon, Lee, Jungil, & Yu, Chaehyun. Relativistic Corrections to e+e- {yields} J/{psi} + {eta}c in a Potential Model.  United States.  doi:10.1063/1.2714404.

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                    Bodwin, Geoffrey T., Kang, Daekyoung, Kim, Taewon, Lee, Jungil, and Yu, Chaehyun. Tue .  
        "Relativistic Corrections to e+e- {yields} J/{psi} + {eta}c in a Potential Model".  United States.  
        doi:10.1063/1.2714404.

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@article{osti_21056842,

  title        = {Relativistic Corrections to e+e- {yields} J/{psi} + {eta}c in a Potential Model},

  author       = {Bodwin, Geoffrey T. and Kang, Daekyoung and Kim, Taewon and Lee, Jungil and Yu, Chaehyun},

  abstractNote = {We compute relativistic corrections to the process e+e- {yields} J/{psi} + {eta}c and find that they resolve the discrepancy between theory and experiment.},

  doi          = {10.1063/1.2714404},

  journal      = {AIP Conference Proceedings},

  number       = 1,

  volume       = 892,

  place        = {United States},

  year         = {Tue Feb 27 00:00:00 EST 2007},

  month        = {Tue Feb 27 00:00:00 EST 2007}

}

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Journal Article:

DOI: 10.1063/1.2714404

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Resummation of relativistic corrections to e{sup +}e{sup -}{yields}J/{psi}+{eta}{sub c}

Bodwin, Geoffrey T. ; Lee, Jungil ; Department of Physics, Korea University, Seoul 136-701 ; ... - Physical Review. D, Particles Fields

We present a new calculation, in the nonrelativistic QCD (NRQCD) factorization formalism, of the relativistic corrections to the double-charmonium cross section {sigma}[e{sup +}e{sup -}{yields}J/{psi}+{eta}{sub c}] at the energy of the Belle and BABAR experiments. In comparison with previous work, our calculation contains several refinements. These include the use of the improved results for the nonperturbative NRQCD matrix elements, the resummation of a class of relativistic corrections, the use of the vector-meson-dominance method to calculate the fragmentation contribution to the pure QED amplitude, the inclusion of the effects of the running of {alpha}, and the inclusion of the contribution that arisesmore »« less
DOI: 10.1103/PHYSREVD.77.094018
Relativistic corrections to e{sup +}e{sup -} {r_arrow} J/{Psi} + {eta}{sub c} in a potential model.

Bodwin, G. T. ; Kang, D. ; Kim, T. ; ...

We compute relativistic corrections to the process e{sup +}e{sup -} {yields} J/{Psi} + {eta}{sub c} and find that they resolve the discrepancy between theory and experiment.
DOI: 10.1063/1.2714404
Resummation of relativistic corrections to e{sup +}e{sup -} {r-arrow} J/{psi} + {eta}{sub c}.

Bodwin, G. T. ; Lee, J. ; Yu, C.-H. ; ... - Phys. Rev. D

No abstract prepared.
DOI: 10.1103/PhysRevD.77.094018
Measurement of the branching ratios {psi}{sup '}{yields}e{sup +}e{sup -}, {psi}{sup '}{yields}J/{psi}{pi}{sup 0}{pi}{sup 0} and {psi}{sup '}{yields}J/{psi}{eta}

Ambrogiani, M. ; Bagnasco, S. ; Baldini, W. ; ... - Physical Review. D, Particles Fields

We have determined the following {psi}{sup '} branching ratios using the large event sample collected by Fermilab experiment E835 in the reaction pp(bar sign){yields}{psi}{sup '}: B({psi}{sup '}{yields}e{sup +}e{sup -})=(7.4{+-}0.2{+-}0.7)x10{sup -3}, B({psi}{sup '}{yields}J/{psi}{pi}{sup 0}{pi}{sup 0})=(18.7{+-}0.9{+-}1.3)% and B({psi}{sup '}{yields}J/{psi}{eta})=(4.1{+-}0.3{+-}0.5)%. (c) 2000 The American Physical Society.
DOI: 10.1103/PhysRevD.62.032004
Measurement of the branching ratios {psi}{sup '}{yields}e{sup +}e{sup -}, {psi}{sup '}{yields}J/{psi}{pi}{pi}, and {psi}{sup '}{yields}J/{psi}{eta}

Andreotti, M. ; Baldini, W. ; Bettoni, D. ; ... - Physical Review. D, Particles Fields

We have measured several branching ratios for {psi}{sup '} decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B({psi}{sup '}{yields}e{sup +}e{sup -})=0.0068{+-}0.0001{+-}0.0004, B({psi}{sup '}{yields}J/{psi}{pi}{sup +}{pi}{sup -})=0.292{+-}0.005{+-}0.018, B({psi}{sup '}{yields}J/{psi}{pi}{sup 0}{pi}{sup 0})=0.167{+-}0.005{+-}0.014, and B({psi}{sup '}{yields}J/{psi}{eta})=0.028{+-}0.002{+-}0.002. We also present a measurement of the dipion mass distribution in the decays {psi}{sup '}{yields}J/{psi}{pi}{pi}.
DOI: 10.1103/PhysRevD.71.032006