Nonet Meson Couplings to Baryons

In this paper we consider some of the experimental data bearing on the hypothesis of universality of co coupling. The low-energy data on the coupling of the w meson and the high-energy data on the coupling of the co-type Regge trajectory have been considered. The data seem to support the universality hypothesis. The universal w coupling constant gj/^ir is estimated to be 4.96±1.24, which is higher than the universal p coupling constant ^py47r=2.60±0.68, where gp and g^ are so normalized that goi = gp in the SU(6) limit. To relate the Regge residues of vector trajectories to the universal coupling constant, we factor out the angular momentum dependence of the former and introduce a ''reduced" Regge residue and a scale parameter for each trajectory. The scale parameters for the co and the p trajectories turn out to be of the order of 290 and 186 MeV, respectively.

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“…(9) of Ref. 22. In a recent paper^^ Barger and Olsson have shown that BpTr/2BpK^^l without the constraint of SU{3) symmetry.…”

Section: Hix{m^^)hiy{mf)/si Bix(0)hiy(0)/sih^'\mentioning

confidence: 97%

Universal Coupling of theωMeson and Regge Residues

Banerjee

Levinson

1968

Phys. Rev.

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“…with the ratio F/D = −1.8 ± 0.2 extracted from the analysis of the high-energy experiments [9,10]. We choose g (1) a 2 NN = 1.4 from existing estimates [11,12] and g (2) a 2 NN = 0 for the consistency with g (2) f 2 NN = 0 by the conjecture of the tensor-meson dominance [13] as well as the phenomenological analysis [14].…”

Section: K * 2 Exchangementioning

confidence: 99%

Tensor meson contribution to γp → K[sup +]Λ(Σ;[sup 0]) at high energies

Choi

Kim

et al. 2011

AIP Conference Proceedings

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“…• Barger et al [25] have defined two models : M1 : η ǫ LR = η ǫ RL and M2 : η ǫ LR = η −ǫ RL , the other η ǫ ij coefficients being set to zero.…”

Section: Models With Chiral Structure Involving Several Individual Termsmentioning

confidence: 99%

“…This excess could be interpreted as a manifestation of new physics : leptoquarks, squarks with R-parity violation (R p / ) or CI. In this latter case, up to some difficulties [24], it corresponds to a new interaction in the up-quark sector for a scale Λ ∼ 3 − 4 T eV [25,17,24]. Since the lepton beam is made of positrons, the cross section σ(e + p) is sensitive to the chiralities LR ± and/or RL ± where ± corresponds to ǫ.…”

Section: Introductionmentioning

confidence: 99%

Hunting for contact interactions at HERA with polarized lepton and proton beams

Virey¹

1999

Eur. Phys. J. C

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We explore the discovery and analysis potentials of the HERA collider, with and without polarized beams, in search for electron-quark contact interactions in the neutral current channel. We find that the sensitivity to contact interactions when both beams are polarized is similar to the unpolarized case, and is better than in the case where one has only lepton polarization. We emphasize that the measurement of spin asymmetries in such a polarized context could give some crucial informations on the chiral structure of these postulated new interactions. The experimental conditions are carefully taken into account.

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Nonet Meson Couplings to Baryons

Cited by 28 publications

References 15 publications

Universal Coupling of theωMeson and Regge Residues

Universal Coupling of theωMeson and Regge Residues

Tensor meson contribution to γp → K[sup +]Λ(Σ;[sup 0]) at high energies

Hunting for contact interactions at HERA with polarized lepton and proton beams

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