scholarly journals HISQ 2+1+1 light quark hadronic vacuum polarization at the physical point

2019 ◽  
Author(s):  
Thomas Blum ◽  
Christopher Aubin ◽  
Maarten Golterman ◽  
Chulwoo Jung ◽  
Santiago Paris ◽  
...  
Keyword(s):  
Vacuum Polarization ◽  
Light Quark ◽  
Physical Point

scholarly journals Light quark vacuum polarization at the physical point and contribution to the muon g−2

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Christopher Aubin ◽  
Thomas Blum ◽  
Cheng Tu ◽  
Maarten Golterman ◽  
Chulwoo Jung ◽  
...  
Keyword(s):  
Vacuum Polarization ◽  
Light Quark ◽  
Physical Point

Contribution of higher quark condensates to the light quark vacuum polarization

1986 ◽  
Vol 166 (4) ◽  
pp. 429-435 ◽  
Author(s):  
A.G. Grozin ◽  
Yu.F. Pinelis
Keyword(s):  
Vacuum Polarization ◽  
Light Quark

scholarly journals Lattice QCD at the physical point: Light quark masses

2011 ◽  
Vol 701 (2) ◽  
pp. 265-268 ◽  
Author(s):  
S. Durr ◽  
Z. Fodor ◽  
C. Hoelbling ◽  
S.D. Katz ◽  
S. Krieg ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Light Quark ◽  
Physical Point ◽  
Quark Masses ◽  
Point Light

GROUNDWATER TIME SERIES

1970 ◽  
Vol 1 (3) ◽  
pp. 181-205 ◽  
Author(s):  
ERIK ERIKSSON
Keyword(s):  
Time Series ◽  
Point Of View ◽  
Hydrologic Models ◽  
Physical Point ◽  
Run Off ◽  
Fort Collins ◽  
Statistical Sense ◽  
Full Benefit ◽  
Future Work ◽  
Prediction Problems

The term “stochastic hydrology” implies a statistical approach to hydrologic problems as opposed to classic hydrology which can be considered deterministic in its approach. During the International Hydrology Symposium, held 6-8 September 1967 at Fort Collins, a number of hydrology papers were presented consisting to a large extent of studies on long records of hydrological elements such as river run-off, these being treated as time series in the statistical sense. This approach is, no doubt, of importance for future work especially in relation to prediction problems, and there seems to be no fundamental difficulty for introducing the stochastic concepts into various hydrologic models. There is, however, some developmental work required – not to speak of educational in respect to hydrologists – before the full benefit of the technique is obtained. The present paper is to some extent an exercise in the statistical study of hydrological time series – far from complete – and to some extent an effort to interpret certain features of such time series from a physical point of view. The material used is 30 years of groundwater level observations in an esker south of Uppsala, the observations being discussed recently by Hallgren & Sands-borg (1968).

Radial excitations of light-quark systems

1999 ◽  
Vol 30 (1) ◽  
pp. 1
Author(s):  
O. A. Zaı̆midoroga
Keyword(s):  
Light Quark

scholarly journals Neutron electric dipole moment using lattice QCD simulations at the physical point

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
C. Alexandrou ◽  
A. Athenodorou ◽  
K. Hadjiyiannakou ◽  
A. Todaro
Keyword(s):  
Dipole Moment ◽  
Lattice Qcd ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Neutron Electric Dipole Moment ◽  
Physical Point

scholarly journals Isospin-1/2 Dπ scattering and the lightest $$ {D}_0^{\ast } $$ resonance from lattice QCD

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Luke Gayer ◽  
Nicolas Lang ◽  
Sinéad M. Ryan ◽  
David Tims ◽  
Christopher E. Thomas ◽  
...  
Keyword(s):  
Scattering Amplitudes ◽  
Lattice Qcd ◽  
Quark Mass ◽  
Light Quark ◽  
Energy Levels ◽  
Experimental Result ◽  
Infinite Volume ◽  
Resonance Pole ◽  
Strongly Coupled ◽  
Light Quark Mass

Abstract Isospin-1/2 Dπ scattering amplitudes are computed using lattice QCD, working in a single volume of approximately (3.6 fm)3 and with a light quark mass corresponding to mπ ≈ 239 MeV. The spectrum of the elastic Dπ energy region is computed yielding 20 energy levels. Using the Lüscher finite-volume quantisation condition, these energies are translated into constraints on the infinite-volume scattering amplitudes and hence enable us to map out the energy dependence of elastic Dπ scattering. By analytically continuing a range of scattering amplitudes, a $$ {D}_0^{\ast } $$ D 0 ∗ resonance pole is consistently found strongly coupled to the S-wave Dπ channel, with a mass m ≈ 2200 MeV and a width Γ ≈ 400 MeV. Combined with earlier work investigating the $$ {D}_{s0}^{\ast } $$ D s 0 ∗ , and $$ {D}_0^{\ast } $$ D 0 ∗ with heavier light quarks, similar couplings between each of these scalar states and their relevant meson-meson scattering channels are determined. The mass of the $$ {D}_0^{\ast } $$ D 0 ∗ is consistently found well below that of the $$ {D}_{s0}^{\ast } $$ D s 0 ∗ , in contrast to the currently reported experimental result.

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