5th International Symposium on Nuclear Symmetry Energy NuSYM15, June 29 - July 2, 2015 Kraków, POLAND

Emanuele Vincenzo Pagano
Università di Catania & INFN-LNS, ITALY

Status and Perspective of the FARCOS detector array

E.V. Pagano$^{1,2}$, L. Acosta$^{4}$, R. Andolina$^{1}$, L. Auditore$^{5}$, C. Boiano$^{6}$, G. Cardella$^{3}$, A. Castoldi$^{7}$, D’Andrea$^{3}$, E. De Filippo$^{3}$, S. De Luca$^{5}$, D. Dell’aquila$^{8}$, L. Francalanza$^{8}$, E. Geraci$^{1,3}$, B. Gnoffo$^{3}$, C. Guazzoni$^{6,7}$, G. Lanzalone$^{2,9}$, I. Lombardo$^{8}$, N. Martorana$^{1,2}$, T. Minniti, S. Norella$^{5}$, A. Pagano$^{3}$, M. Papa$^{3}$, S. Pirrone$^{3}$, G. Politi$^{3}$, F. Porto$^{1,2}$, L. Quattrocchi$^{5}$, F. Rizzo$^{1,2}$, P. Russotto$^{3}$, G. Saccà$^{3}$, A. Trifirò$^{5}$, M. Trimarchi$^{5}$ , G. Verde$^{3,10}$, M. Vigilante$^{8}$

$^{1}$Università di Catania, Catania, Italy.
$^{2}$INFN Laboratori Nazionli del Sud, Catania, Italy.
$^{3}$INFN Sezione di Catania, Catania, Italy.
$^{4}$Istituto de Fìsica, Universidad Nacional Autònoma de Mèxico, Mèxico D.F. 01000, Mèxico.
$^{5}$Dipartimento di Fisica e Scienze della Terra, Università di Messina & INFN gr. collegato di Messina, Messina, Italy.
$^{6}$INFN Sezione di Milano, Milano, Italy.
$^{7}$Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Milano, Italy.
$^{8}$INFN Sezione di Napoli & Dipartimento di Fisica, Università di Napoli Federico II, Napoli, Italy.
$^{9}$Università Kore Enna, Enna, Italy.
$^{10}$Institut de Physique Nuclèaire d’Orsay, Orsay, France

Nuclear matter under extreme conditions can be studied in the laboratory with heavy- ion (H.I.) collisions. In this case one can indeed vary both the incident energy and mass asymmetry. By exploring different impact parameters and rapidity regions it is possible to access nuclear densities that extends above and below saturation density. Such opportunities allow one to learn more about the nuclear equation of state and its implications in astrophysics phenomena such as supernovae explosions and neutron stars properties. Furthermore, during the dynamical evolution of the studied systems short living exotic states can be produced and their properties can be studied by detecting the final products of resonance decays. All these phenomena involve time scales that need to be accessed with multi- particle correlation measurements.

Experimental observables, such as linear momentum and energy, sensitive to both space-time and spectroscopic properties of the nuclear systems produced in the H.I. collisions, need to be measured with both high angle and energy resolution over a large solid angle coverage. In order to address this problem dedicated geometrically flexible correlator arrays are useful tools to be coupled with 4π detectors. One of these arrays is FARCOS, presently under construction at the INFN Sezione di Catania and Laboratori Nazionali del Sud (LNS). The FARCOS (Femtoscope ARray for COrrelations and Spectroscopy) will consist of an array of twenty telescopes, each composed by two Double Sided Silicon Strip Detectors (DSSSD), of thickness 300μm and 1500μm, respectively, followed by four CsI(Tl) crystals read-out by silicon photodiodes. In this contribution a brief report of the present status of FARCOS array and future perspectives will be presented. Particular attention will be devoted to some preliminary results obtained in a recent experiment performed using a prototype of 4 clusters of FARCOS coupled with CHIMERA detector[1].

[1] E. V. Pagano et al., EPJ Web of Conferences (2015) in press