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46 papers · 2 filters
Hunting resonance poles with Rational Approximants
Pere Masjuan
Based on the mathematically well defined Padé Theory, a theoretically safe new procedure for the extraction of the pole mass and width of resonances is proposed. In particular, tha…
New neutrino interactions at large colliders
Francisco del Aguila, Juan Antonio Aguilar-Saavedra, Jorge de Blas
We update present bounds on the helicity of the neutrinos produced in muon decay, including e+ e- -> fbar f LEP 2 data. These significantly reduce the limits derived from all the o…
Boosted objects: a probe of beyond the Standard Model physics
A. Abdesselam, E. Bergeaas Kuutmann, U. Bitenc +59
We present the report of the hadronic working group of the BOOST2010 workshop held at the University of Oxford in June 2010. The first part contains a review of the potential of ha…
Analytic Approximations for the Extrapolation of Lattice Data
Pere Masjuan
We present analytic approximations of chiral SU(3) amplitudes for the extrapolation of lattice data to the physical masses and the determination of Next-to-Next-to-Leading-Order lo…
Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
Enrique Ruiz Arriola, Wojciech Broniowski
Scalar-isoscalar states are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regg…
How light can the lightest neutralino be?
Olaf Kittel
In this talk we summarize previous work on mass bounds of a light neutralino in the Minimal Supersymmetric Standard Model. We show that without the GUT relation between the gaugino…