Results 31 to 40 of about 28,328 (233)
Decays of bottom mesons emitting pseudoscalar and tensor mesons in ISGW II model [PDF]
Phys.Rev.D82:094014,2010, 2010 In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitting pseudoscalar and tensor mesons. Decay amplitudes are obtained using the factorization scheme in the improved ISGW II model. Branching ratios for the CKM-favored and CKM-suppressed decays are calculated.
arxiv +1 more source
Quark-nucleon dynamics and Deep Virtual Compton Scattering [PDF]
Phys.Rev.D82:014006,2010, 2010 We consider deeply virtual Compton scattering and deep inelastic scattering in presence of Regge exchanges that are part of the non-perturbative quark-nucleon amplitude. In particular we discuss contribution from the Pomeron exchange and demonstrate how it leads to Regge scaling of the Compton amplitude. Comparison with HERA data is given.
arxiv +1 more source
About flavor, spin and color [PDF]
Phys.Rev.D82:056005,2010, 2010 Chiral symmetry breaking (restoration) for SU(N) gauge theories is a topic of great interest and not yet fully explained. We consider the phenomenon as a collective spin effect and determine its behavior in terms of the number of flavors, N_f.
arxiv +1 more source
A regularization of the hamiltonian constraint compatible with the spinfoam dynamics [PDF]
Phys.Rev.D82:044007,2010, 2010 We introduce a new regularization for Thiemann's Hamiltonian constraint. The resulting constraint can generate the 1-4 Pachner moves and is therefore more compatible with the dynamics defined by the spinfoam formalism. We calculate its matrix elements and observe the appearence of the 15j Wigner symbol in these.
arxiv +1 more source
Enabling or Limiting Cognitive Flexibility? Evidence of Demand for Moral Commitment
The American Economic Review, 2023 Moral behavior is more prevalent when individuals cannot easily distort their beliefs self-servingly. Do individuals seek to limit or enable their ability to distort beliefs? How do these choices affect behavior?
Silvia Saccardo, Marta Serra-Garcia
semanticscholar +1 more source
Information gaps in the market for social services: retirement homes in the Czech Republic
Review of Economic Perspectives, 2019 The research address a partial issue of market failure in the form of information asymmetry. Within the public sector, social services, together with health services, belong to typical sectors where the information superiority of supply against demand is
Vrabková Iveta +2 more
doaj +1 more source
Alianzas y política: un juego entre agentes civiles y armados
Lecturas de Economía, 2009 Uno de los propósitos de los agentes armados en guerras irregulares es reemplazar al Estado en el monopolio de la violencia y en la protección de la población civil.
María Del Pilar Castillo, Boris Salazar
doaj +1 more source
On the geometry of loop quantum gravity on a graph [PDF]
Phys.Rev.D82:044018,2010, 2010 We discuss the meaning of geometrical constructions associated to loop quantum gravity states on a graph. In particular, we discuss the "twisted geometries" and derive a simple relation between these and Regge geometries.
arxiv +1 more source
Democracy, Lobbying and Economics
Review of Economic Perspectives, 2019 The paper deals with the issue of lobbying, defined as a democratic means of promoting interests. The text tries to find answers to the problems in the current economic theory.
Žák Milan
doaj +1 more source
Geometric Representation of the generator of duality in massless and massive $p-$form field theories [PDF]
Phys.Rev.D82:105013,2010, 2010 We study the invariance under duality transformations in massless and massive $p-$form field theories and obtain the Noether generators of the infinitesimal transformations that correspond to this symmetry. These generators are realized in geometrical representations that generalize the Loop Representation of the Maxwell field, allowing for a ...
arxiv +1 more source