Charmonium Spectroscopy from Inclusive psi-prime and J/psi Radiative Decays

Results from a detailed study using the Crystal Ball detector at the SLAC e+e− storage ring SPEAR of the inclusive photon spectra from 1.8×106 ψ’ and 2.2×106 J/ψ decays are presented. Radiative transitions from the ψ’ to the χ2,1,0 states are observed with photon energies of 126.0±0.2±4, 169.6±0.3±4...

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Hauptverfasser: Gaiser, J., Bloom, Elliott D., Bulos, F., Godfrey, G., Kiesling, Christian M., Lockman, William S., Oreglia, M., Scharre, D. L., Edwards, C., Partridge, Richard, Peck, C., Porter, F., Antreasyan, D., Gu, Y. F., Irion, J., Kollmann, W. S., Strauch, K., Wacker, K., Weinstein, A., Aschman, D., Burnett, T., Cavalli-Sforza, M., Coyne, D. G., Newman-Holmes, C. B., Sadrozinski, H. F. W., Gelphman, D., Hofstadter, R., Horisberger, R., Kirkbride, I., Kolanoski, H., Konigsmann, Kay, Lee, Roger A., Liberman, A., O'Reilly, J., Osterheld, A., Pollock, B., Tompkins, J.
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container_end_page 721 (1986). doi:10.1103/PhysRevD.34.711
container_issue
container_start_page 711
container_title
container_volume
creator Gaiser, J.
Bloom, Elliott D.
Bulos, F.
Godfrey, G.
Kiesling, Christian M.
Lockman, William S.
Oreglia, M.
Scharre, D. L.
Edwards, C.
Partridge, Richard
Peck, C.
Porter, F.
Antreasyan, D.
Gu, Y. F.
Irion, J.
Kollmann, W. S.
Strauch, K.
Wacker, K.
Weinstein, A.
Aschman, D.
Burnett, T.
Cavalli-Sforza, M.
Coyne, D. G.
Newman-Holmes, C. B.
Sadrozinski, H. F. W.
Gelphman, D.
Hofstadter, R.
Horisberger, R.
Kirkbride, I.
Kolanoski, H.
Konigsmann, Kay
Lee, Roger A.
Liberman, A.
O'Reilly, J.
Osterheld, A.
Pollock, B.
Tompkins, J.
description Results from a detailed study using the Crystal Ball detector at the SLAC e+e− storage ring SPEAR of the inclusive photon spectra from 1.8×106 ψ’ and 2.2×106 J/ψ decays are presented. Radiative transitions from the ψ’ to the χ2,1,0 states are observed with photon energies of 126.0±0.2±4, 169.6±0.3±4, and 258.4±0.4±4 MeV and branching ratios B(ψ’→γχ2,1,0) =(8.0±0.5±0.7)%, (9.0±0.5±0.7)%, and (9.9±0.5±0.8)%, respectively. Values for the natural linewidths of the χ states are obtained: Γ(χ2,1,0)=0.8–4.9,
doi_str_mv 10.3204/pubdb-2017-11225
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L. ; Edwards, C. ; Partridge, Richard ; Peck, C. ; Porter, F. ; Antreasyan, D. ; Gu, Y. F. ; Irion, J. ; Kollmann, W. S. ; Strauch, K. ; Wacker, K. ; Weinstein, A. ; Aschman, D. ; Burnett, T. ; Cavalli-Sforza, M. ; Coyne, D. G. ; Newman-Holmes, C. B. ; Sadrozinski, H. F. W. ; Gelphman, D. ; Hofstadter, R. ; Horisberger, R. ; Kirkbride, I. ; Kolanoski, H. ; Konigsmann, Kay ; Lee, Roger A. ; Liberman, A. ; O'Reilly, J. ; Osterheld, A. ; Pollock, B. ; Tompkins, J.</creator><creatorcontrib>Gaiser, J. ; Bloom, Elliott D. ; Bulos, F. ; Godfrey, G. ; Kiesling, Christian M. ; Lockman, William S. ; Oreglia, M. ; Scharre, D. L. ; Edwards, C. ; Partridge, Richard ; Peck, C. ; Porter, F. ; Antreasyan, D. ; Gu, Y. F. ; Irion, J. ; Kollmann, W. S. ; Strauch, K. ; Wacker, K. ; Weinstein, A. ; Aschman, D. ; Burnett, T. ; Cavalli-Sforza, M. ; Coyne, D. G. ; Newman-Holmes, C. B. ; Sadrozinski, H. F. W. ; Gelphman, D. ; Hofstadter, R. ; Horisberger, R. ; Kirkbride, I. ; Kolanoski, H. ; Konigsmann, Kay ; Lee, Roger A. ; Liberman, A. ; O'Reilly, J. ; Osterheld, A. ; Pollock, B. ; Tompkins, J.</creatorcontrib><description>Results from a detailed study using the Crystal Ball detector at the SLAC e+e− storage ring SPEAR of the inclusive photon spectra from 1.8×106 ψ’ and 2.2×106 J/ψ decays are presented. Radiative transitions from the ψ’ to the χ2,1,0 states are observed with photon energies of 126.0±0.2±4, 169.6±0.3±4, and 258.4±0.4±4 MeV and branching ratios B(ψ’→γχ2,1,0) =(8.0±0.5±0.7)%, (9.0±0.5±0.7)%, and (9.9±0.5±0.8)%, respectively. Values for the natural linewidths of the χ states are obtained: Γ(χ2,1,0)=0.8–4.9, &lt;3.8, and 13–21 MeV, respectively (90% C.L.). Improved values are found for the branching ratios B(ψ’→γηc) =(0.28±0.06)% and B(J/ψ→γηc)=(1.27±0.36)%, and for the natural width Γ(ηc)=11.5±4.5 MeV.</description><identifier>ISSN: 1550-7998</identifier><identifier>ISSN: 2470-0029</identifier><identifier>ISSN: 0556-2821</identifier><identifier>ISSN: 2470-0010</identifier><identifier>ISSN: 1089-4918</identifier><identifier>ISSN: 1550-2368</identifier><identifier>DOI: 10.3204/pubdb-2017-11225</identifier><language>eng</language><publisher>Deutsches Elektronen-Synchrotron, DESY, Hamburg</publisher><subject>(PHOTON): ENERGY SPECTRUM ; 1: 3.7 GEV-CMS ; ANNIHILATION: ELECTRON POSITRON ; CHARMONIUM ; CHI: WIDTH ; COLLIDING BEAMS: ELECTRON POSITRON ; Crystal Ball ; ELECTRON POSITRON: ANNIHILATION ; ELECTRON POSITRON: COLLIDING BEAMS ; ELECTROPRODUCTION: J/PSI ; ELECTROPRODUCTION: PSI ; ENERGY SPECTRUM: (PHOTON) ; ETA/C: WIDTH ; EXPERIMENTAL RESULTS ; J/PSI: ELECTROPRODUCTION ; PSI --&gt; CHI MESONS PHOTON ; PSI MESONS --&gt; ETA/C PHOTON ; PSI MESONS: BRANCHING RATIO ; PSI MESONS: RADIATIVE DECAY ; PSI: ELECTROPRODUCTION ; RADIATIVE DECAY: PSI MESONS ; SLAC SPEAR STOR</subject><creationdate>1986</creationdate><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>776,780,1888,4476,27902</link.rule.ids><linktorsrc>$$Uhttps://commons.datacite.org/doi.org/10.3204/pubdb-2017-11225$$EView_record_in_DataCite.org$$FView_record_in_$$GDataCite.org</linktorsrc></links><search><creatorcontrib>Gaiser, J.</creatorcontrib><creatorcontrib>Bloom, Elliott D.</creatorcontrib><creatorcontrib>Bulos, F.</creatorcontrib><creatorcontrib>Godfrey, G.</creatorcontrib><creatorcontrib>Kiesling, Christian M.</creatorcontrib><creatorcontrib>Lockman, William S.</creatorcontrib><creatorcontrib>Oreglia, M.</creatorcontrib><creatorcontrib>Scharre, D. L.</creatorcontrib><creatorcontrib>Edwards, C.</creatorcontrib><creatorcontrib>Partridge, Richard</creatorcontrib><creatorcontrib>Peck, C.</creatorcontrib><creatorcontrib>Porter, F.</creatorcontrib><creatorcontrib>Antreasyan, D.</creatorcontrib><creatorcontrib>Gu, Y. F.</creatorcontrib><creatorcontrib>Irion, J.</creatorcontrib><creatorcontrib>Kollmann, W. S.</creatorcontrib><creatorcontrib>Strauch, K.</creatorcontrib><creatorcontrib>Wacker, K.</creatorcontrib><creatorcontrib>Weinstein, A.</creatorcontrib><creatorcontrib>Aschman, D.</creatorcontrib><creatorcontrib>Burnett, T.</creatorcontrib><creatorcontrib>Cavalli-Sforza, M.</creatorcontrib><creatorcontrib>Coyne, D. G.</creatorcontrib><creatorcontrib>Newman-Holmes, C. B.</creatorcontrib><creatorcontrib>Sadrozinski, H. F. W.</creatorcontrib><creatorcontrib>Gelphman, D.</creatorcontrib><creatorcontrib>Hofstadter, R.</creatorcontrib><creatorcontrib>Horisberger, R.</creatorcontrib><creatorcontrib>Kirkbride, I.</creatorcontrib><creatorcontrib>Kolanoski, H.</creatorcontrib><creatorcontrib>Konigsmann, Kay</creatorcontrib><creatorcontrib>Lee, Roger A.</creatorcontrib><creatorcontrib>Liberman, A.</creatorcontrib><creatorcontrib>O'Reilly, J.</creatorcontrib><creatorcontrib>Osterheld, A.</creatorcontrib><creatorcontrib>Pollock, B.</creatorcontrib><creatorcontrib>Tompkins, J.</creatorcontrib><title>Charmonium Spectroscopy from Inclusive psi-prime and J/psi Radiative Decays</title><addtitle>Physical review / D 34(3)</addtitle><description>Results from a detailed study using the Crystal Ball detector at the SLAC e+e− storage ring SPEAR of the inclusive photon spectra from 1.8×106 ψ’ and 2.2×106 J/ψ decays are presented. Radiative transitions from the ψ’ to the χ2,1,0 states are observed with photon energies of 126.0±0.2±4, 169.6±0.3±4, and 258.4±0.4±4 MeV and branching ratios B(ψ’→γχ2,1,0) =(8.0±0.5±0.7)%, (9.0±0.5±0.7)%, and (9.9±0.5±0.8)%, respectively. Values for the natural linewidths of the χ states are obtained: Γ(χ2,1,0)=0.8–4.9, &lt;3.8, and 13–21 MeV, respectively (90% C.L.). Improved values are found for the branching ratios B(ψ’→γηc) =(0.28±0.06)% and B(J/ψ→γηc)=(1.27±0.36)%, and for the natural width Γ(ηc)=11.5±4.5 MeV.</description><subject>(PHOTON): ENERGY SPECTRUM</subject><subject>1: 3.7 GEV-CMS</subject><subject>ANNIHILATION: ELECTRON POSITRON</subject><subject>CHARMONIUM</subject><subject>CHI: WIDTH</subject><subject>COLLIDING BEAMS: ELECTRON POSITRON</subject><subject>Crystal Ball</subject><subject>ELECTRON POSITRON: ANNIHILATION</subject><subject>ELECTRON POSITRON: COLLIDING BEAMS</subject><subject>ELECTROPRODUCTION: J/PSI</subject><subject>ELECTROPRODUCTION: PSI</subject><subject>ENERGY SPECTRUM: (PHOTON)</subject><subject>ETA/C: WIDTH</subject><subject>EXPERIMENTAL RESULTS</subject><subject>J/PSI: ELECTROPRODUCTION</subject><subject>PSI --&gt; CHI MESONS PHOTON</subject><subject>PSI MESONS --&gt; ETA/C PHOTON</subject><subject>PSI MESONS: BRANCHING RATIO</subject><subject>PSI MESONS: RADIATIVE DECAY</subject><subject>PSI: ELECTROPRODUCTION</subject><subject>RADIATIVE DECAY: PSI MESONS</subject><subject>SLAC SPEAR STOR</subject><issn>1550-7998</issn><issn>2470-0029</issn><issn>0556-2821</issn><issn>2470-0010</issn><issn>1089-4918</issn><issn>1550-2368</issn><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1986</creationdate><recordtype>report</recordtype><sourceid>PQ8</sourceid><recordid>eNqdzssOgjAQBdAuNNEoe5f9geoMiMjaR3zs1H0zlBJrBJoWTPh7xfgFriY3k3tzGJshzKMQlgvbZnkmQsBEIIZhPGBjjGMQSZquRyzw_gEAuII0QRyz8-ZOrqwr05b8arVqXO1VbTteuLrkx0o9W29emltvhHWm1JyqnJ8Wn8wvlBtq-u9WK-r8lA0Lenod_O6EwX532xxETg0p02jZL5DrJILsrfJrlb1Vfq3RH5U3LHtKoA</recordid><startdate>1986</startdate><enddate>1986</enddate><creator>Gaiser, J.</creator><creator>Bloom, Elliott D.</creator><creator>Bulos, F.</creator><creator>Godfrey, G.</creator><creator>Kiesling, Christian M.</creator><creator>Lockman, William S.</creator><creator>Oreglia, M.</creator><creator>Scharre, D. 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L.</au><au>Edwards, C.</au><au>Partridge, Richard</au><au>Peck, C.</au><au>Porter, F.</au><au>Antreasyan, D.</au><au>Gu, Y. F.</au><au>Irion, J.</au><au>Kollmann, W. S.</au><au>Strauch, K.</au><au>Wacker, K.</au><au>Weinstein, A.</au><au>Aschman, D.</au><au>Burnett, T.</au><au>Cavalli-Sforza, M.</au><au>Coyne, D. G.</au><au>Newman-Holmes, C. B.</au><au>Sadrozinski, H. F. W.</au><au>Gelphman, D.</au><au>Hofstadter, R.</au><au>Horisberger, R.</au><au>Kirkbride, I.</au><au>Kolanoski, H.</au><au>Konigsmann, Kay</au><au>Lee, Roger A.</au><au>Liberman, A.</au><au>O'Reilly, J.</au><au>Osterheld, A.</au><au>Pollock, B.</au><au>Tompkins, J.</au><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Charmonium Spectroscopy from Inclusive psi-prime and J/psi Radiative Decays</btitle><addtitle>Physical review / D 34(3)</addtitle><date>1986</date><risdate>1986</risdate><spage>711</spage><epage>721 (1986). doi:10.1103/PhysRevD.34.711</epage><pages>711-721 (1986). doi:10.1103/PhysRevD.34.711</pages><issn>1550-7998</issn><issn>2470-0029</issn><issn>0556-2821</issn><issn>2470-0010</issn><issn>1089-4918</issn><issn>1550-2368</issn><abstract>Results from a detailed study using the Crystal Ball detector at the SLAC e+e− storage ring SPEAR of the inclusive photon spectra from 1.8×106 ψ’ and 2.2×106 J/ψ decays are presented. Radiative transitions from the ψ’ to the χ2,1,0 states are observed with photon energies of 126.0±0.2±4, 169.6±0.3±4, and 258.4±0.4±4 MeV and branching ratios B(ψ’→γχ2,1,0) =(8.0±0.5±0.7)%, (9.0±0.5±0.7)%, and (9.9±0.5±0.8)%, respectively. Values for the natural linewidths of the χ states are obtained: Γ(χ2,1,0)=0.8–4.9, &lt;3.8, and 13–21 MeV, respectively (90% C.L.). Improved values are found for the branching ratios B(ψ’→γηc) =(0.28±0.06)% and B(J/ψ→γηc)=(1.27±0.36)%, and for the natural width Γ(ηc)=11.5±4.5 MeV.</abstract><pub>Deutsches Elektronen-Synchrotron, DESY, Hamburg</pub><doi>10.3204/pubdb-2017-11225</doi></addata></record>
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subjects (PHOTON): ENERGY SPECTRUM
1: 3.7 GEV-CMS
ANNIHILATION: ELECTRON POSITRON
CHARMONIUM
CHI: WIDTH
COLLIDING BEAMS: ELECTRON POSITRON
Crystal Ball
ELECTRON POSITRON: ANNIHILATION
ELECTRON POSITRON: COLLIDING BEAMS
ELECTROPRODUCTION: J/PSI
ELECTROPRODUCTION: PSI
ENERGY SPECTRUM: (PHOTON)
ETA/C: WIDTH
EXPERIMENTAL RESULTS
J/PSI: ELECTROPRODUCTION
PSI --> CHI MESONS PHOTON
PSI MESONS --> ETA/C PHOTON
PSI MESONS: BRANCHING RATIO
PSI MESONS: RADIATIVE DECAY
PSI: ELECTROPRODUCTION
RADIATIVE DECAY: PSI MESONS
SLAC SPEAR STOR
title Charmonium Spectroscopy from Inclusive psi-prime and J/psi Radiative Decays
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