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CONVENTIONAL CHARMONIA

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Presentation on theme: "CONVENTIONAL CHARMONIA"— Presentation transcript:

1 CONVENTIONAL CHARMONIA

2 Outline of the section. 0. Introduction
Observation of new conventional charmonium states 1.1 c(2S) 1.2 c2 (2P) 1.3 X(3940)/X(4160) 1.4 X(4630) 2. Observation of new decay modes of known charmonia 2.1 c   2.2 ψ(4040/4160)  DD, DD*, D*D* 2.3 ψ(4415)  DD2 3. Measurements of parameters (mass, width, Br) 3.1 c mass and width, transition FF 3.2 J/ψ: Γee, Γtot from ISR 3.3 c0 and c2 3.4 ψ(3770) mass and width 4. Production 4.1 in B-decays 4.2 in ee annihilation 4.3 in gamma-gamma 4.4 in ee annihilation at threshold (ISR) 5. Theoretical insights Outline of the section. The major part of the section has been written Minor experimental subsections still have to be written Theoretical/overview of experimental status introduction is not ready Theoretical insights (conclusion on new B&B results) will be done by Nora within few weeks Omitted due to large overlapping with other sections

3 n 2S+1LJ To be written by me in collaboration with Nora ~ 1 page
Spin quarks Total momentum To be written by me in collaboration with Nora ~ 1 page n 2S+1LJ Radial excitation Orbital momentum ...10 states were discovered before 1980, no one J = S + L P = (–1)L+1 parity C = (–1)L+S charge conj. ...4 candidates to the standard charmonium have been observed since 2002 by B&B hc have been observed by CLEO in 2003

4 + CLEO Contributor: Pietro Biassoni (BaBar) 2.5 pages Reference
Produced in Decays in Comments PRL 89, (2002) B-decay KSKπ First observation in B-decays PRL 89, (2002) e+e–  J/ X inclusive Confirmation evidence PRL 92, (2004) γγ Observation in γγ, Γγγ×Br PRD 72, (2006) Mass and Γ, σ(ee  J/ηc) PRL 96, (2006) Absolute BR PRL 98, (2007) Mass, σ(ee  J/ηc) PRD 98, (2008) Mass and Γ PRD 84, (2011) KKπππ0 New mode, mass and Γ, Γγγ×Br + CLEO PRL 92, (2004) γγ KSKπ Observation in γγ

5 Total width Mass Absolute Br
6±12 MeV (CLEO) 17± 8 MeV (BaBar) PDG average: Γ = (14 ± 7) MeV Absolute Br Br(c(2S)KSKπ)=(1.9±1.2)×10− 2 Still one more analysis to be added: Belle’s update of B K (KSKπ) - has just accepted for publication in PLB

6 e+ γ e– D χс2’ Contributor: Thorsten Shroeder (BaBar) 1.25 pages
M=393142 MeV/c2 =2083 MeV Reference Comments PRL 96, (2006) First observation in γγ, J-determination Mass, Γ, Γγγ measurements PRD 81, (2010) Observation in γγ, M=3926.72.71.1 MeV/c2 =21.36.83.6 MeV

7 Plausible assignments are JPC=0–+ X(3940) = 31S0 = ηc(3S)
Contributor: Pasha Pakhlov (Belle) 2 pages M = ±6 MeV tot = ±12 MeV +7 −6 +26 −15 6.0  X(3940) → DD* References PRL 98, (2007) PRL 100, (2008) Plausible assignments are JPC=0–+ X(3940) = 31S0 = ηc(3S) X(4160) = 41S0 = ηc(4S) M= 15 MeV tot = 21 MeV +25 −20 +111 − 61 5.5  X(4160) → D*D*

8 to be written 0.5 page State Produced in Decays in Reference ΛΛ
B  ηcK ΛΛ PRL 97, (2006) ψ(4415) ISR DD2 PRL 100, (2008) ψ(4040) ψ(4160) DD, DD*, D*D* PRD 79, (2009) unexpected present from ISR conveners. After minor accommodation fits our section well (1.5 pages)

9 Korneliy Todyshev (BaBar) Anna Vinokurova (Belle)
Contributors: Korneliy Todyshev (BaBar) Anna Vinokurova (Belle) to be written ~2 pages do not need to describe analyses  just review the results (except for c transition FF) State Produced in Decays in Measured Reference ηc γγ  KSKπ M, Γ PRL 92, (2004) B  ηcK(*) PRL 90, (2003) γγ*  M, Γ, FF, Γγγ PRD 81, (2010) B  ηcK KKπ, K*Kπ, pp J/, ηc B  J/(ηc)K pp, ΛΛ M, Γ, Br PRL 97, (2006) ηc, χc0 e+e–  J/ X exclusive M PRL 98, (2007) pp M, Γ, Γγγ PLB 621, 41 (2005) ηc, χc0, χc2 4K, 2K2π, 4π EPJ C53, 1 (2008) γγ Brγγ PLB 662, 323 (2008)

10 Produced in Decays in Measured Reference ISR μμ Γee, Γtot PRL 97, (2006) State Produced in Decays in Measured Reference χc2 γγ  J/ γ Γγγ*Br PLB 540, 33 (2002) χc0, χc2 KSKS PLB 651, 15 (2007) ηc, χc0, χc2 4K, 2K2π, 4π Γγγ*Br, M, Γ EPJ C53, 1 (2008) Produced in Measured Reference ISR M, Γ PRD 76, (2007) B  ψ(3770) K PRL 100, (2008) PRD 77, (2008)

11 Contributor: Timofey Uglov (Belle) ~1.5 pages χc0 B  χc0K KK, ππ
State Produced in Decays in Measured Reference χc0 B  χc0K KK, ππ Br(B  ) PRL 88, (2002) PRL 96, (2006) PRD 78, (2008) χc2 B  χc2X J/ γ PRL 89, (2002) PRD67, (2006) B  χc2K(*) UL PLB 634, 155 (2006) PRL 102, (2009)

12 Nora Brambilla (theory) to be written ~1-2 pages
Contributor: Pasha Pakhlov (Belle) ~2 pages State Produced in Decays in Measured Reference J/ e+e–  J/ X ℓℓ σ PRL 88, (2002) J/; (2S) e+e–  J/ 0±+ ℓℓ; J/ ππ σ, θprod, θhel PRD 70, (2004) ℓℓ; PRD 72, (2006) e+e–  J/ cc σ, p, θprod, θhel PRL 89, (2002) PRD 79, (2009) Contributor: Nora Brambilla (theory) to be written ~1-2 pages


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