103 citations · 601 across the 27 of their papers we have counts for
6 papers · 1 filter
The Isgur-Wise function in the BPS limit
F. Jugeau, A. Le Yaouanc, L. Oliver +1
From sum rules in the heavy quark limit of QCD, using the non-forward amplitude, we demonstrate that if the slope rho^2 = -xsi'(1) of the Isgur-Wise function xsi(w) attains its low…
The controversy about "1/m_Q duality violation" ; a quark model point of view
Alain Le Yaouanc, Dimitri Melikhov, Vincent Morenas +3
A detailed discussion based on exact calculations, possible in the non relativistic quark model, is given to show that there is no 1/m_Q term in the heavy quark expansion of totall…
Explicit form of the Isgur-Wise function in the BPS limit
F. Jugeau, A. Le Yaouanc, L. Oliver +1
Using previously formulated sum rules in the heavy quark limit of QCD, we demonstrate that if the slope rho^2 = -xi'(1) of the Isgur-Wise function xi(w) attains its lower bound 3/4…
Spin dynamics and magnetic order in magnetically frustrated Tb2Sn2O7
P. Dalmas de Reotier, A. Yaouanc, L. Keller +8
We report a study of the geometrically frustrated magnetic material Tb2Sn2O7 by the positive muon spin relaxation technique. No signature of a static magnetically ordered state is…
Magnetic ordering in Gd2Sn2O7: the archetypal Heisenberg pyrochlore antiferromagnet
A. S. Wills, M. E. Zhitomirsky, B. Canals +4
Low-temperature powder neutron diffraction measurements are performed in the ordered magnetic state of the pyrochlore antiferromagnet Gd2Sn2O7. Symmetry analysis of the diffraction…
Non-Perturbative Approach to the Landau Gauge Gluodynamics
A. Y. Lokhov, Ph. Boucaud, J. P. Leroy +5
We discuss a non-perturbative lattice calculation of the ghost and gluon propagators in the pure Yang-Mills theory in Landau gauge. The ultraviolet behaviour is checked up to NNNLO…