Exclusive QCD predictions for proton-antiproton decay rates of 3D1-states charmonium states

R. W. Robinett; L. Weinkauf

doi:10.1016/0370-2693(91)91305-F

Exclusive QCD predictions for proton-antiproton decay rates of ³D₁-states charmonium states

R. W. Robinett
, L. Weinkauf

Physics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Using familiar methods of exclusive QCD, we derive the amplitude for the coupling of J=1 quarkonium D-states to proton-antiproton pairs. Including the ³D₁ contribution, we then evaluate the Ψ′ →pp decay width and find that the |2 ³S₁〉-|1 ³D₁〉 mixing angle solution φ=-(28±2)° is favored by the observed Ψ′ decay rate. Using this solution, we then find that Γ(Ψ″→p p)/Γ(Ψ→pp) is in the range 0.07-0.31 depending on the assumed nucleon wavefunction.

Original language	English (US)
Pages (from-to)	231-236
Number of pages	6
Journal	Physics Letters B
Volume	271
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(91)91305-F
State	Published - Nov 14 1991

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(91)91305-F

Cite this

@article{c2e483f1c7f3455e8216b44cd0ef5d04,

title = "Exclusive QCD predictions for proton-antiproton decay rates of 3D1-states charmonium states",

abstract = "Using familiar methods of exclusive QCD, we derive the amplitude for the coupling of J=1 quarkonium D-states to proton-antiproton pairs. Including the 3D1 contribution, we then evaluate the Ψ′ →pp decay width and find that the |2 3S1〉-|1 3D1〉 mixing angle solution φ=-(28±2)° is favored by the observed Ψ′ decay rate. Using this solution, we then find that Γ(Ψ″→p p)/Γ(Ψ→pp) is in the range 0.07-0.31 depending on the assumed nucleon wavefunction.",

author = "Robinett, \{R. W.\} and L. Weinkauf",

note = "Funding Information: We thank R. Lewis for numerous useful conversations. This work was supported in part by the National Science Foundation under PHY-9001744 (R.R.) and by the Texas National Research Laboratory Commission under an SSC Junior Faculty Fellowship (R.R.).",

year = "1991",

month = nov,

day = "14",

doi = "10.1016/0370-2693(91)91305-F",

language = "English (US)",

volume = "271",

pages = "231--236",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Exclusive QCD predictions for proton-antiproton decay rates of 3D1-states charmonium states

AU - Robinett, R. W.

AU - Weinkauf, L.

N1 - Funding Information: We thank R. Lewis for numerous useful conversations. This work was supported in part by the National Science Foundation under PHY-9001744 (R.R.) and by the Texas National Research Laboratory Commission under an SSC Junior Faculty Fellowship (R.R.).

PY - 1991/11/14

Y1 - 1991/11/14

N2 - Using familiar methods of exclusive QCD, we derive the amplitude for the coupling of J=1 quarkonium D-states to proton-antiproton pairs. Including the 3D1 contribution, we then evaluate the Ψ′ →pp decay width and find that the |2 3S1〉-|1 3D1〉 mixing angle solution φ=-(28±2)° is favored by the observed Ψ′ decay rate. Using this solution, we then find that Γ(Ψ″→p p)/Γ(Ψ→pp) is in the range 0.07-0.31 depending on the assumed nucleon wavefunction.

AB - Using familiar methods of exclusive QCD, we derive the amplitude for the coupling of J=1 quarkonium D-states to proton-antiproton pairs. Including the 3D1 contribution, we then evaluate the Ψ′ →pp decay width and find that the |2 3S1〉-|1 3D1〉 mixing angle solution φ=-(28±2)° is favored by the observed Ψ′ decay rate. Using this solution, we then find that Γ(Ψ″→p p)/Γ(Ψ→pp) is in the range 0.07-0.31 depending on the assumed nucleon wavefunction.

UR - https://www.scopus.com/pages/publications/13744264569

UR - https://www.scopus.com/pages/publications/13744264569#tab=citedBy

U2 - 10.1016/0370-2693(91)91305-F

DO - 10.1016/0370-2693(91)91305-F

M3 - Article

AN - SCOPUS:13744264569

SN - 0370-2693

VL - 271

SP - 231

EP - 236

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Exclusive QCD predictions for proton-antiproton decay rates of ³D₁-states charmonium states

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this