Heavy-light mesons on the light front

Tang, Shuo; Li, Yang; Maris, Pieter; Vary, James P.

doi:10.1140/epjc/s10052-020-8081-9

Cited by 44 publications

(23 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reason for this choice is that the Gegenbauer procedure sketched above is appropriate for broader and concave amplitudes, whereas a distribution amplitude with a convexconcave behavior of functions reminiscent of the δ-function in the infinite-mass limit is more appropriately described by Eq. (57). This functional form of the distribution amplitude for heavy quarkonia is also found in the application of the maximum entropy method to extract the Nakanishi weight function of the quarkonia's Bethe-Salpeter wave function [95].…”

mentioning

confidence: 62%

“…We are now able to present numerical results for the reconstructed LCDAs of the pseudoscalar mesons discussed in Sect. The heavy quarkonia and heavy-light mesons, for which we use an exponential parametrization for the distribution amplitude (57) The theoretical uncertainties are due to ω f variations as described in Sect. 2.3.…”

Section: Reconstructed Distribution Amplitudesmentioning

confidence: 99%

“…Additional model approaches exist, see Refs. [54][55][56][57] for instance. A heavy-light LCDA was also extracted from the extrapolation of Bethe-Salpeter amplitudes calculated with an unphysical pion mass [58].…”

Section: Introductionmentioning

confidence: 99%

“…The larger moments suffer numerical instabilities for these heavy-light mesons and we thus prefer the representation in Eq. (57).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Distribution amplitudes of heavy mesons and quarkonia on the light front

et al. 2020

View full text Add to dashboard Cite

The ladder kernel of the Bethe–Salpeter equation is amended by introducing a different flavor dependence of the dressing functions in the heavy-quark sector. Compared with earlier work this allows for the simultaneous calculation of the mass spectrum and leptonic decay constants of light pseudoscalar mesons, the $$D_u$$ D u , $$D_s$$ D s , $$B_u$$ B u , $$B_s$$ B s and $$B_c$$ B c mesons and the heavy quarkonia $$\eta _c$$ η c and $$\eta _b$$ η b within the same framework at a physical pion mass. The corresponding Bethe–Salpeter amplitudes are projected onto the light front and we reconstruct the distribution amplitudes of the mesons in the full theory. A comparison with the first inverse moment of the heavy meson distribution amplitude in heavy quark effective theory is made.

show abstract

mentioning

confidence: 62%

Section: Reconstructed Distribution Amplitudesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The larger moments suffer numerical instabilities for these heavy-light mesons and we thus prefer the representation in Eq. (57).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Distribution amplitudes of heavy mesons and quarkonia on the light front

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Meanwhile, creations of a large ensemble of heavy mesons are expected from ongoing and forthcoming high energy experiments, e.g. Large Hadron Collider (LHC) and Relativistic Heavy Ion Collider (RHIC), attracting dedicated theoretical efforts for understanding their structure [5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Parton distribution functions of heavy mesons on the light front

Lan

Mondal

et al. 2020

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

The parton distribution functions (PDFs) of heavy mesons are evaluated from their light-front wave functions, which are obtained from a basis light-front quantization in the leading Fock sector representation. We consider the mass eigenstates from an effective Hamiltonian consisting of the confining potential adopted from light-front holography in the transverse direction, a longitudinal confinement, and a one-gluon exchange interaction with running coupling. We present the gluon and the sea quark PDFs which we generate dynamically from the QCD evolution of the valence quark distributions.

show abstract

Anisotropic flow and the valence quark skeleton of hadrons

Li,

Qian,

et al. 2023

J. High Energ. Phys.

View full text Add to dashboard Cite

We study transverse momentum anisotropies, in particular, the elliptic flow v2 due to the interference effect sourced by valence quarks in high-energy hadron-hadron collisions. Our main formula is derived as the high-energy (eikonal) limit of the impact-parameter dependent cross section in quantum field theory, which agrees with that in terms of the impact parameter in the classical picture. As a quantitative assessment of the interference effect, we calculate v2 in the azimuthal distribution of gluons at a comprehensive coverage of the impact parameter and the transverse momentum in high-energy pion-pion collisions. In a broad range of the impact parameter, a sizable amount of v2, comparable with that produced due to saturated dense gluons or final-state interactions, is found to develop. This is in contrast with similar studies in heavy-ion collisions using classical color charge distributions in which such a contribution from geometric correlations was found to be small and has, hence, been ignored in recent studies. In our calculations, the valence sector of the pion wave function is obtained numerically from the Basis Light-Front Quantization, a non-perturbative light-front Hamiltonian approach. And our formalism is generic and can be applied to other small collision systems like proton-proton collisions.

show abstract

Heavy-light mesons on the light front

Cited by 44 publications

References 58 publications

Distribution amplitudes of heavy mesons and quarkonia on the light front

Distribution amplitudes of heavy mesons and quarkonia on the light front

Parton distribution functions of heavy mesons on the light front

Anisotropic flow and the valence quark skeleton of hadrons

Contact Info

Product

Resources

About