Meson exchange model for πρ scattering

Janssen, Gerhard; Holinde, K.; Speth, J.

doi:10.1103/physrevc.49.2763

Cited by 51 publications

(51 citation statements)

References 19 publications

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“…They are underpredicted by the rates related to the Lagrangians in Refs. [13] and [14], and by rates obtained with parameter set II of the interaction from Ref. [10].…”

Section: Using Experimentally-constrained Spectral Functionsmentioning

confidence: 99%

Off-shell effects in dilepton production from hot interacting mesons

Gao

Gale

1998

Phys. Rev. C

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The production of dielectrons in reactions involving a_1 mesons and pions is studied. We compare results obtained with different phenomenological Lagrangians that have been used in connection with hadronic matter and finite nuclei. We insist on the necessity for those interactions to satisfy known empirical properties of the strong interaction. Large off-shell effects in dielectron production are found and some consequences for the interpretation of heavy ion data are outlined. We also compare with results obtained using experimentally-extracted spectral functions.Comment: 14 pages, LaTeX2e, 2 figure

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“…They are underpredicted by the rates related to the Lagrangians in Refs. [13] and [14], and by rates obtained with parameter set II of the interaction from Ref. [10].…”

Section: Using Experimentally-constrained Spectral Functionsmentioning

confidence: 99%

Off-shell effects in dilepton production from hot interacting mesons

Gao

Gale

1998

Phys. Rev. C

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“…More importantly, a dynamical model for the interaction between a π and a ρ meson was not available at that time. We have recently constructed a corresponding potential model [9], with driving terms shown in Fig.8.…”

Section: Correlated πρ πρ πρ πρ Exchangementioning

confidence: 99%

“…Fig.15: Differential cross section and analyzing power for the NN → π + π − annihilation process at p lab = 690M eV /c. The curves have the same meaning as in Fig.14 [9]. We obtain for partial cross sections from specific pp initial S-states results shown in Table 2.…”

Section: Meson-meson Correlations In Nucleon-antinucleon Annihilationmentioning

confidence: 99%

Meson-meson correlations in baryon-baryon and antibaryon-baryon interactions

Holinde

1996

Progress in Particle and Nuclear Physics

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“…The coupling constants can be obtained from the ρρρ and ρωπ couplings with the help of the SU(3) symmetry. The g ρρρ is suggested equivalent to g ππρ = 6.2 [28,29]. The SU(3) symmetry suggests g K * K * ρ = g K * K * ω = g K * K * φ /[ √ 2(2α − 1)] = g ρρρ /(2α).…”

Section: Introductionmentioning

confidence: 99%

Hidden-strange molecular states and the Nϕ bound states via a QCD van der Waals force

Huang

Chen

et al. 2018

Phys. Rev. D

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In this work, we study the hidden-strange molecular states composed of a baryon and a vector meson in a coupled-channel Nρ − Nω − Nφ − ΛK * − ΣK * interaction. With the help of the effective Lagrangians which coupling constants are determined by the SU(3) symmetry, the interaction is constructed and inserted into the quasipotential Bethe-Salpeter equation to search for poles in the complex plane, which correspond to molecular states. Two poles are found with a spin parity 3/2 − near the Nρ and the ΣK * thresholds, which can be related to the N(1700) and the N(2100), respectively. No pole near the Nφ threshold can be found if direct interaction between a nucleon and φ meson is neglected according to the OZI rule. After introducing the QCD van der Waals force between a nucleon and φ meson, a narrow state can be produced near the Nφ threshold. Inclusion of the QCD van der Waals force changes the line shape of the invariant mass spectrum in the Nφ channel leading to a worse agreement with the present low-precision data. Future experiments at BelleII, JLab, and other facilities will be very helpful to clarify the existence of these possible hidden-strange molecular states.

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Meson exchange model for πρ scattering

Cited by 51 publications

References 19 publications

Off-shell effects in dilepton production from hot interacting mesons

Off-shell effects in dilepton production from hot interacting mesons

Meson-meson correlations in baryon-baryon and antibaryon-baryon interactions

Hidden-strange molecular states and the Nϕ bound states via a QCD van der Waals force

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