Dijet resonances, widths and all that

ar X iv : 1 11 1 . 10 54 v 3 [ he p - ph ] 1 8 Fe b 20 12 Dijet resonances , widths and all that

The search for heavy resonances in the dijet channel is part of the on-going physics programme, both at the Tevatron and at the LHC. Lower limits have been placed on the masses of dijet resonances predicted in a wide variety of models. However, across experiments, the search strategy assumes that the effect of the new particles is well-approximated by on-shell production and subsequent decay in...

Masses, widths, and leptonic widths of the higher upsilon resonances.

The masses, total widths, and leptonic widths of three triplet s-wave bb states Y(4S), Y (5S), and Y(6S) are determined from measurements of the e+e annihilation cross section into hadrons for 10.55 & W & 11.25 GeV. The resonances are identified from potential model results and their properties are obtained with the help of a simplified coupled-channels calculation. We find M(4S) = 10.577 GeV, ...

Dark Chocolate and Metabolic Syndrome; Do Polyphenols All that Matter?

ANCs and Radiation Widths of the First Two Resonances in

Asymptotic normalization coefficients (ANC), defining the normalization of the tail of nuclear bound-state wave functions projected onto the two-body channels, play an important role in nuclear reaction and structure theory. In our previous work, we have demonstrated that ANCs can be successfully used as normalization coefficients for the nonresonant capture amplitudes in the R matrix approach ...

Widths of Isobaric Analog Resonances: a microscopic approach

A self-consistent particle-phonon coupling model is used to investigate the properties of the isobaric analog resonance in 208Bi. It is shown that quantitative agreement with experimental data for the energy and the width can be obtained if the effects of isospin-breaking nuclear forces are included, in addition to the Coulomb force effects. A connection between microscopic model predictions an...