J/ψ\psi suppression at s=\sqrt{{\bf s}} = 200 GeV in the comovers interaction model

The yield of $J/\psi$ per binary nucleon-nucleon collision in $AuAu$ and $CuCu$ collisions at $\sqrt{s} = 200$ GeV is computed in the framework of the dual parton model, supplemented with final state interaction (comovers interaction). For the latter we use the same value of the cross-section, $\sigma_{co} = 0.65$ mb, which describes the anomalous $J/\psi$ suppression observed at CERN-SPS energies. Several possibilities for the value of the absorptive cross-section are considered. Shadowing is introduced in both the comovers and the $J/\psi$ yields. A comparison with the results at CERN-SPS, including a prediction for $InIn$ collisions, is also presented.Comment: 15 pages, 3 figure

The Cowl - v. 69 - n. 14 - Jan 20, 2005

The Cowl - student newspaper of Providence College. Volume 69 - Number 14 - January 20, 2005. 24 pages

Electromagnetic field measurements in ULF-ELF-VLF [0.001 Hz–100KHz] bands

We are reporting the technological and scientific objectives of the MEM project. The MEM project has been activated in the INGV Observatory of L’Aquila to create in Central Italy a network of observatories in order to monitoring the electromagnetic signals in the frequency band [0.001 Hz–100 kHz]. Some examples of the instrumentation developed in the frame of the project are reported. An innovative technique, based on the wide band interferometry is proposed to obtain detailed information concerning the several detected electromagnetic sources. Moreover, data from each station will be elaborated to investigate different sectors as the structure of ground electric conductibility, the electromagnetic phenomena connected with seismic activity, the separation of the electromagnetic fields originated in the Earth’s interior and the electromagnetic phenomena originated in the magnetosphere, in the ionosphere and in the Earth-ionosphere cavity

The Cowl - v.31 -n.15 - Feb 14, 1979

The Cowl - student newspaper of Providence College. Volume 31, Number 15 - February 14, 1979. 20 pages. Note:: The volume number printed on the banner page of this issue (XXXI) duplicates the volume number for the 1968-69 academic year

The Cowl - v.31 - n.14 - Jan 31, 1979

The Cowl - student newspaper of Providence College. Volume 31, Number 14 - January 31, 1979. 12 pages. Note:: The volume number printed on the banner page of this issue (XXXI) duplicates the volume number for the 1968-69 academic year

The Anchor (1976, Volume 69 Issue 14)

https://digitalcommons.ric.edu/the_anchor/1727/thumbnail.jp