Although television is still the dominant source, in recent years the public's consumption of news programming has shifted noticeably. While formerly audiences tuned in to the networks' national newscasts with regularity, today more people rely on local news programs than on network news. Opinion surveys recorded this shift as early as 1993 when the Roper Organization's annual survey of televis...

Associative photoproduction of ω-meson and N∗(1440) on nucleons, γ + N → ω + N∗(1440), in the near threshold region is investigated in a framework employing effective Lagrangians. Besides π-exchange in t-channel, baryon exchanges, i.e. Nand N∗-exchanges, in the sand u-channels are also taken into account in calculations of differential cross-section and beam asymmetry. Important inputs of this ...

Exclusive measurements of the two-pion production channel pp → ppπ + π − have been carried out near threshold at CELSIUS with the PROMICE/WASA detector.

A description of the nucleon and Roper resonance in a quark-diquark approach is presented. We show that two states with the quantum number of the nucleon can appear in the ground state of the spatial configuration, when there are two types of diquarks: scalar-isoscalar and axialvector-isovector diquarks. The mass difference between the two states is generated by the mass difference between the ...

We present a chiral model describing decays of the Roper-like ${\mathrm{\ensuremath{\Lambda}}}_{c}(2765)$ and ${\mathrm{\ensuremath{\Xi}}}_{c}(2970)$ as well those heavy quark spin-doublet ${{\mathrm{\ensuremath{\Sigma}}}_{c}(2455),{\mathrm{\ensuremath{\Sigma}}}_{c}(2520)}$ ${{\mathrm{\ensuremath{\Xi}}}_{c}^{\ensuremath{'}},{\mathrm{\ensuremath{\Xi}}}_{c}(2645)}$, by focusing on representations...