Results 111 to 120 of about 121,798 (207)

Three-loop massive form factors: complete light-fermion and large-N c corrections for vector, axial-vector, scalar and pseudo-scalar currents

open access: yesJournal of High Energy Physics, 2018
We compute the three-loop QCD corrections to the massive quark form factors with external vector, axial-vector, scalar and pseudo-scalar currents. All corrections with closed loops of massless fermions are included.
Roman N. Lee   +3 more
doaj   +1 more source

CP violation in multibody B decays from QCD factorization

open access: yesJournal of High Energy Physics, 2017
We test a data-driven approach based on QCD factorization for charmless three-body B-decays by confronting it to measurements of CP violation in B − → π − π + π −.
Rebecca Klein   +3 more
doaj   +1 more source

Heavy-quark free energy at finite temperature with 2+1 flavors of improved Wilson quarks in fixed scale approach

open access: yes, 2009
The free energy between a static quark and an antiquark is studied by using the color-singlet Polyakov-line correlation at finite temperature. We perform simulations on $32^3 \times 12$, 10, 8, 6, 4 lattices in the high temperature phase with the RG ...
Aoki, S.   +7 more
core  

Beyond the Standard Model searches with top quarks at D0

open access: yes, 2009
Due to its high mass and short lifetime, the top quark plays an important role in checking the Standard Model of particle physics. In this report, we pr\ esent a variety of searches for physics beyond the Standard Model, involving top quarks, at the D0 ...
Peters, Yvonne
core  

Lattice QCD and Heavy Quark Physics

open access: yes, 2003
Review talk at Flavour physics and CP violation, Paris, June ...
openaire   +2 more sources

Lattice Results For Heavy Quark Physics

open access: yes, 1995
The status of lattice calculations for heavy quark systems is reviewed, focussing on weak matrix elements for leptonic and semi-leptonic decays of heavy mesons. After an assessment of the main systematic errors, results for the decay constants $f_D$ and $f_B$, the $B$ parameter describing $B - \bar{B}$ mixing, the Isgur-Wise function and the ...
openaire   +2 more sources

Some topics in heavy-quark physics

open access: yes, 2002
16 pages, 6 figures ...
openaire   +2 more sources

Heavy Quark Physics on the Lattice

open access: yes, 1996
We illustrate the current status of heavy quark physics on the lattice. Special emphasis is paid to the question of systematic uncertainties and to the connection of lattice computations to continuum physics. Latest results are presented and discussed with respect to the progress in methods, statistical accuracy and reliability.
openaire   +2 more sources

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