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Title: {chi}{sub cJ} decays to h{sup +}h{sup -}h{sup 0}

Abstract

Using a sample of 3x10{sup 6} {psi}(2S) decays recorded by the CLEO detector, we study three-body decays of the {chi}{sub c0}, {chi}{sub c1}, and {chi}{sub c2} produced in radiative decays of the {psi}(2S). We consider the final states {pi}{sup +}{pi}{sup -}{eta}, K{sup +}K{sup -}{eta}, pp{eta}, {pi}{sup +}{pi}{sup -}{eta}{sup '}, K{sup +}K{sup -}{pi}{sup 0}, pp{pi}{sup 0}, {pi}{sup +}K{sup -}K{sub S}{sup 0}, and K{sup +}p{lambda}, measuring branching fractions or placing upper limits. For {chi}{sub c1}{yields}{pi}{sup +}{pi}{sup -}{eta}, K{sup +}K{sup -}{pi}{sup 0}, and {pi}{sup +}K{sup -}K{sub S}{sup 0} our observed samples are large enough to indicate the largest contributions to the substructure.

Authors:
; ; ;  [1];  [2]; ; ; ; ; ; ; ; ;  [3]; ;  [4];  [5];  [6]; ;  [7]
  1. University of Florida, Gainesville, Florida 32611 (United States)
  2. George Mason University, Fairfax, Virginia 22030 (United States)
  3. University of Illinois, Urbana-Champaign, Illinois 61801 (United States)
  4. Indiana University, Bloomington, Indiana 47405 (United States)
  5. University of Kansas, Lawrence, Kansas 66045 (United States)
  6. Luther College, Decorah, Iowa 52101 (United States)
  7. University of Minnesota, Minneapolis, Minnesota 55455 (United States) (and others)
Publication Date:
OSTI Identifier:
21010966
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.75.032002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). CLEO Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; CESR STORAGE RING; CHI1-3510 MESONS; ETA MESONS; KAONS MINUS; KAONS NEUTRAL SHORT-LIVED; KAONS PLUS; LAMBDA BARYONS; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; PSI-3770 MESONS; RADIATIVE DECAY; THREE-BODY PROBLEM

Citation Formats

Athar, S. B., Patel, R., Potlia, V., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Karliner, I., Kim, D., Lowrey, N., Naik, P., Selen, M., White, E. J., Wiss, J., Mitchell, R. E., Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., and Gao, K. Y. {chi}{sub cJ} decays to h{sup +}h{sup -}h{sup 0}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.032002.
Athar, S. B., Patel, R., Potlia, V., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Karliner, I., Kim, D., Lowrey, N., Naik, P., Selen, M., White, E. J., Wiss, J., Mitchell, R. E., Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., & Gao, K. Y. {chi}{sub cJ} decays to h{sup +}h{sup -}h{sup 0}. United States. doi:10.1103/PHYSREVD.75.032002.
Athar, S. B., Patel, R., Potlia, V., Yelton, J., Rubin, P., Cawlfield, C., Eisenstein, B. I., Karliner, I., Kim, D., Lowrey, N., Naik, P., Selen, M., White, E. J., Wiss, J., Mitchell, R. E., Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., and Gao, K. Y. Thu . "{chi}{sub cJ} decays to h{sup +}h{sup -}h{sup 0}". United States. doi:10.1103/PHYSREVD.75.032002.
@article{osti_21010966,
title = {{chi}{sub cJ} decays to h{sup +}h{sup -}h{sup 0}},
author = {Athar, S. B. and Patel, R. and Potlia, V. and Yelton, J. and Rubin, P. and Cawlfield, C. and Eisenstein, B. I. and Karliner, I. and Kim, D. and Lowrey, N. and Naik, P. and Selen, M. and White, E. J. and Wiss, J. and Mitchell, R. E. and Shepherd, M. R. and Besson, D. and Pedlar, T. K. and Cronin-Hennessy, D. and Gao, K. Y.},
abstractNote = {Using a sample of 3x10{sup 6} {psi}(2S) decays recorded by the CLEO detector, we study three-body decays of the {chi}{sub c0}, {chi}{sub c1}, and {chi}{sub c2} produced in radiative decays of the {psi}(2S). We consider the final states {pi}{sup +}{pi}{sup -}{eta}, K{sup +}K{sup -}{eta}, pp{eta}, {pi}{sup +}{pi}{sup -}{eta}{sup '}, K{sup +}K{sup -}{pi}{sup 0}, pp{pi}{sup 0}, {pi}{sup +}K{sup -}K{sub S}{sup 0}, and K{sup +}p{lambda}, measuring branching fractions or placing upper limits. For {chi}{sub c1}{yields}{pi}{sup +}{pi}{sup -}{eta}, K{sup +}K{sup -}{pi}{sup 0}, and {pi}{sup +}K{sup -}K{sub S}{sup 0} our observed samples are large enough to indicate the largest contributions to the substructure.},
doi = {10.1103/PHYSREVD.75.032002},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 75,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}
  • We present a study of the P-wave spin-triplet charmonium {chi}{sub cJ} decays (J=0, 1, 2) into {pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}. The analysis is based on 106x10{sup 6} {psi}{sup '} decays recorded with the BESIII detector at the BEPCII electron positron collider. The decay into the {pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0} hadronic final state is observed for the first time. We measure the branching fractions B({chi}{sub c0}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0})=(3.34{+-}0.06{+-}0.44)x10{sup -3}, B({chi}{sub c1}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0})=(0.57{+-}0.03{+-}0.08)x10{sup -3}, and B({chi}{sub c2}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0})=(1.21{+-}0.05{+-}0.16)x10{sup -3}, where the uncertainties are statistical and systematical, respectively.
  • K*(892){sup 0}K*(892){sup 0} signals from {chi}{sub cJ}(J=0,1,2) decays are observed for the first time using a data sample of 14 million {psi}(2S) events accumulated in the BES II detector. The branching fractions B[{chi}{sub cJ}{yields}K*(892){sup 0}K*(892){sup 0}] (J=0,1,2) are determined to be (1.78{+-}0.34{+-}0.34)x10{sup -3} (1.67{+-}0.32{+-}0.31)x10{sup -3}, and (4.86{+-}0.56{+-}0.88)x10{sup -3} for the {chi}{sub c0}, {chi}{sub c1}, and {chi}{sub c2} decays, respectively, where the first errors are statistical and the second are systematic. The significances of these signals are about 4.7{sigma}, 4.5{sigma}, and 7.6{sigma}, respectively.
  • We extend previous analyses of the supersymmetric loop correction to the neutral Higgs couplings to include the coupling {chi}{sub j}{sup +}{chi}{sub k}{sup -}H{sub l}{sup 0}. The analysis completes the previous analyses where similar corrections were computed for the {tau}{tau}H{sub l}{sup 0}, bbH{sub l}{sup 0}, ccH{sub l}{sup 0} and for ttH{sub l}{sup 0} couplings within the minimal supersymmetric standard model. The effective one-loop Lagrangian is then applied to the computation of the neutral Higgs decays. The sizes of the supersymmetric loop corrections of the neutral Higgs decay widths into {chi}{sub i}{sup +}{chi}{sub j}{sup -} (i=1, 2; j=1, 2) are investigated andmore » the supersymmetric loop correction is found to be in the range of 7{approx}15% in significant regions of the parameter space. By including the loop corrections of the other decay channels bb, tt, {tau}{tau}, cc, and {chi}{sub i}{sup 0}{chi}{sub j}{sup 0} (i=1-4; j=1-4), the corrections to branching ratios for H{sub l}{sup 0}{yields}{chi}{sub i}{sup +}{chi}{sub j}{sup -} can reach as high as 40%. The effects of CP phases on the branching ratio are also investigated.« less
  • We show that in the transitions {psi}{sup '}{yields}h{sub c}{pi}{sup 0} and {eta}{sub c}{sup '}{yields}{chi}{sub c0}{pi}{sup 0} the contributions from charmed-meson loops are highly suppressed, in contrast to various other charmonium decays. We calculate the width of the {psi}{sup '}{yields}h{sub c}{pi}{sup 0}, which agrees with the recent BES-III data, and predict the width of the {eta}{sub c}{sup '}{yields}{chi}{sub c0}{pi}{sup 0}, {Gamma}({eta}{sub c}{sup '}{yields}{chi}{sub c0}{pi}{sup 0})=1.5{+-}0.4 keV. A confirmation of this prediction would also provide additional support for a recent analysis of {psi}{sup '}{yields}J/{psi}{pi}{sup 0}({eta}), where loops are claimed to play a prominent role.
  • Using a sample of 25.9x10{sup 6} {psi}(2S) decays acquired with the CLEO-c detector at the CESR e{sup +}e{sup -} collider, we report branching fractions for the decays {chi}{sub cJ{yields}}pp{pi}{sup 0}, pp{eta}, and pp{omega}, with J=0, 1, 2. Our results for B({chi}{sub cJ{yields}}pp{pi}{sup 0}) and B({chi}{sub cJ{yields}}pp{eta}) are consistent with, but more precise than, previous measurements. Furthermore, we include the first measurement of B({chi}{sub cJ{yields}}pp{omega}).