Towards Lattice QCD Baryon Forces at the Physical Point: First Results

We show the first results for parton distribution functions within the proton at the physical pion mass, employing the method of quasi-distributions. In particular, we present the matrix elements for the iso-vector combination of the unpolarized, helicity and transversity quasi-distributions, obtained with Nf = 2 twisted mass cloverimproved fermions and a proton boosted with momentum [see formula in PDF] = 0.83 GeV. The momentum smearing technique has been applied to improve the overlap with the proton boosted state. Moreover, we present the renormalized helicity matrix elements in the RI’ scheme, following the non-perturbative renormalization prescription recently developed by our group.

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Neutral B -meson mixing from full lattice QCD at the physical point

Physical Review D ◽

10.1103/physrevd.100.094508 ◽

2019 ◽

Vol 100 (9) ◽

Cited By ~ 15

Author(s):

R. J. Dowdall ◽

C. T. H. Davies ◽

R. R. Horgan ◽

G. P. Lepage ◽

C. J. Monahan ◽

...

Keyword(s):

Lattice Qcd ◽

B Meson ◽

Physical Point ◽

Neutral B Meson ◽

Meson Mixing ◽

B Meson Mixing

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Charmed baryon spectrum from lattice QCD near the physical point

Physical Review D ◽

10.1103/physrevd.102.054513 ◽

2020 ◽

Vol 102 (5) ◽

Cited By ~ 2

Author(s):

H. Bahtiyar ◽

K. U. Can ◽

G. Erkol ◽

P. Gubler ◽

M. Oka ◽

...

Keyword(s):

Lattice Qcd ◽

Physical Point ◽

Charmed Baryon ◽

Baryon Spectrum

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Baryon interactions from lattice QCD with physical masses —S = −3 sector: Ξ∑ and Ξ∑-Λ∑—

EPJ Web of Conferences ◽

10.1051/epjconf/201817505013 ◽

2018 ◽

Vol 175 ◽

pp. 05013 ◽

Cited By ~ 3

Author(s):

Noriyoshi Ishii ◽

Sinya Aoki ◽

Takumi Doi ◽

Shinya Gongyo ◽

Tetsuo Hatsuda ◽

...

Keyword(s):

Lattice Qcd ◽

Single Channel ◽

Wave Functions ◽

Large Uncertainty ◽

Physical Point ◽

Direct Scattering ◽

Spatial Volume ◽

Hypernuclear Physics ◽

Coupled Channel

Hyperon-nucleon and hyperon-hyperon interactions are important in studying the properties of hypernuclei in hypernuclear physics. However, unlike the nucleons which are quite stable, hyperons are unstable so that the direct scattering experiments are difficult, which leads to the large uncertainty in the phenomenological determination of hyperon potentials. In this talk, we use the gauge configurations generated at the (almost) physical point (mπ = 146 MeV) on a huge spatial volume (8:1fm)4 to present our latest result on the hyperon-hyperon potentials in S = −3 sector (Ξ∑ single channel and Ξ∑- ΞΛ; coupled channel) from the Nambu-Bethe-Salpeter wave functions based on the HAL QCD method with improved statistics.

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