Distribution Amplitudes of Vector Mesons

Horsley, R.; Braun, Vladimir M.; Broemmel, D.; Goeckeler, Meinulf; Nakamura, Y.; Perlt, H.; Pleiter, D.; Rakow, P. E. L.; Schäfer, Andreas; Schierholz, G.; Schiller, A.; Schroers, W.; Streuer, T.; Stüben, H.; Zanotti, J. M.

doi:10.22323/1.042.0144

Cited by 2 publications

References 4 publications

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ρ -meson spectroscopy and diffractive production using the holographic light-front Schrödinger equation and the ’t Hooft equation

Gurjar,

Mondal,

Kaur

2024

Phys. Rev. D

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We determine the mass spectroscopy and light-front wave functions (LFWFs) of the ρ-meson by solving the holographic Schrödinger equation of light-front chiral QCD along with the ’t Hooft equation of (1+1)-dimensional QCD in the large Nc limit. Subsequently, we utilize the obtained LFWFs in conjunction with the color glass condensate dipole cross section to calculate the cross sections for the diffractive ρ-meson electroproduction. Our spectroscopic results align well with the experimental data. Predictions for the diffractive cross sections demonstrate good consistency with the available experimental data at different energies from H1 and ZEUS collaborations. Additionally, we show that the resulting LFWFs for the ρ-meson can effectively describe various properties, including its decay constant, distribution amplitudes, electromagnetic form factors, charge radius, magnetic and quadrupole moments. Comparative analyses are conducted with experimental measurements and the available theoretical predictions. Published by the American Physical Society 2024

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ρ -meson spectroscopy and diffractive production using the holographic light-front Schrödinger equation and the ’t Hooft equation

Gurjar,

Mondal,

Kaur

2024

Phys. Rev. D

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Parton Distribution Amplitudes with Non-Perturbative Renormalisation

Boyle¹,

Brömmel²,

Donnellan³

et al. 2009

Proceedings of the XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008)

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We present results for the first two moments of the light-cone distribution amplitudes of the π and K pseudo-scalar mesons and of the ρ, K * and φ vector mesons. The calculations are performed on the RBC/UKQCD collaborations' ensembles generated with the Iwasaki gauge action and with 2+1 flavours of domain wall fermions. In addition we also provide some results on the necessary non-perturbative renormalisation which we perform using the Rome-Southampton method. We discuss the benefits of the momentum source approach such as much smaller statistical errors and the possibility to see effects of the discretisation.

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Distribution Amplitudes of Vector Mesons

Abstract: Results are presented for the lowest moment of the distribution amplitude for the K * vector meson. Both longitudinal and transverse moments are investigated. We use two flavours of O(a) improved Wilson fermions, together with a non-perturbative renormalisation of the matrix element.

Cited by 2 publications

References 4 publications

ρ -meson spectroscopy and diffractive production using the holographic light-front Schrödinger equation and the ’t Hooft equation

ρ -meson spectroscopy and diffractive production using the holographic light-front Schrödinger equation and the ’t Hooft equation

Parton Distribution Amplitudes with Non-Perturbative Renormalisation

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