723 citations · 4.2k across the 58 of their papers we have counts for
8 papers · 1 filter
Gluon condensates from the Hamiltonian formalism
Vladimir Prochazka, Roman Zwicky
We derive recently obtained relations, relating the logarithmic gauge coupling derivative of the hadron mass and the cosmological constant to the matter and vacuum gluon condensate…
(A)symmetries of weak decays at and near the kinematic endpoint
Gudrun Hiller, Roman Zwicky
At the kinematic endpoint of zero recoil physical momenta are parallel which leads to symmetries in the decay distributions. We implement this observation for decays of the type $A…
Endpoint Symmetries of Helicity Amplitudes
Roman Zwicky
We investigate helicity amplitudes (HAs) of -type decays for arbitrary spin towards the kinematic endpoint. We show that they are proportional to product of Clebsch-Gord…
B -> K^* Form Factors from Flavor Data to QCD and Back
Christian Hambrock, Gudrun Hiller, Stefan Schacht +1
Sufficient control of transition form factors is a vital ingredient for the precision flavor programs including the nearer term searches at the Large Hadron Collider (LHC) and the…
Renormalization group, trace anomaly and Feynman-Hellmann theorem
Luigi Del Debbio, Roman Zwicky
We show that the logarithmic derivative of the gauge coupling on the hadronic mass and the cosmological constant term of a gauge theory are related to the gluon condensate of the h…
Conformal scaling and the size of -hadrons
Luigi Del Debbio, Roman Zwicky
The scaling laws in an infrared conformal (IR) theory are dictated by the critical exponents of relevant operators. We have investigated these scaling laws at leading order in two…