Motivated by the newly observed structure at 3250 MeV / c 2 in the Σ ++ c π − π − invariant mass spectrum by the BaBar Collaboration, we study the possible D ∗ molecular structures in a constituent quark model. We found three possible molecules, with I ( J P ) quantum n...

The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (VIolation of the Pauli Principle) experiment took data at the LNGS underground ...

Comment: RevTex4, 15 pages, 19 eps figures, 1 Table. v2: Few comments and references added, conclusion section extended, results unchanged. Published in Phys. Rev. D

Comment: 224 pages, 172 figures

Comment: 19 pages, 8 figures and tables

Multi-gap RPC prototypes with readout on a multi-strip electrode were developed for the small polar angle region of the CBM-TOF subdetector, the most demanding zone in terms of granularity and counting rate. The prototypes are based on low resistivity ($\sim$10$^{10}$ $...

The unpolarised transverse momentum dependent distribution and fragmentation functions are extracted from HERMES and COMPASS experimental measurements of SIDIS multiplicities for charged hadron production. The data are grouped into independent bins of the kinematical va...

Comment: 14 pages, 8 figures

Single-spin azimuthal asymmetries were extracted at HERMES in inclusive electroproduction of charged hadrons from transversely polarized protons. The asymmetries were studied as a function of the transverse hadron momentum P T relative to the beam direction, and the Fey...

The COMPASS experiment recently discovered a new isovector resonance-like signal with axial-vector quantum numbers, the $a_1(1420)$, decaying to $f_0(980)\pi$. With a mass too close to and a width smaller than the axial-vector ground state $a_1(1260)$, it was immediatel...