Strangeness, Gravitational waves and neutron stars

Friday 10 Jun 2016, 09:30 → 18:00 Europe/Rome

Aula Direzione (Ed. 1) (INFN - Laboratori Nazionali di Frascati)

Catalina Oana Curceanu (LNF), Maria Paola Lombardo (LNF)

ONE DAY MEETING
Strangeness, Gravitational waves and neutron stars
10 June 2016
INFN-LNF
Aula di Direzione (Ed. 1)
 

The meeting is centred on the most recent developments and findings in the strangeness physics, in particular the possible role of strangeness in neutron stars, on the discovery of gravitational waves and on the future of these fields, considering that a copious source of gravitational waves are expected to be the binaries of neutron stars. Combining the theoretical and experimental findings in these sectors will allow a better and more accurate understanding of the involved processes, at the crossroad between strong interaction and general relativity.

Organizers: Catalina Oana Curceanu, Maria Paola Lombardo
Speakers include:
Omar Benhar (INFN Sapienza), Ignazio Bombaci (Univ. e INFN Pisa), Alessandro Drago (Univ. e INFN Ferrara, Italy) Viviana Fafone (ToV), Alessandra Feo (Univ. Perugia), Massimo Mannarelli (LNGS), Kristian Piscicchia (LNF-INFN e Centro Fermi, Roma), Jacobus Verbaarschot (SUNY),  

09:30 → 10:00 Registrations and Welcome

10:00 → 11:00 The first detection of gravitational waves

Speaker: Viviana Fafone (ROMA2)

Slides fafone.pdf

11:00 → 11:45 The physics of Binary Neutron Star merger from general relativistic numerical simulations.

Abstract: In this talk I will focus on the physics of Binary Neutron Stars merger obtained from numerical simulations of the Einstein equations coupled to matter. The results are obtained using a semi-realistic descriptions of the equation of state (EOS), where the EOS is described by a seven-segment piece-wise polytropic and a thermal component. One of the important characteristics of the present investigation is that it is entirely performed using only publicly available open source software, the Einstein Toolkit for the dynamical evolution and the LORENE code for the generation of the initial models. After the gravitational-wave event GW150914, observed by the LIGO/Virgo collaboration, the new eve of Gravitational Wave physics has just began and it is clear that accurate modelling of the gravitational wave signal emitted by compact binary sources will play a prominent role. In particular I will present results for the gravitational wave-signal obtained from three-dimensional numerical simulations of the dynamics of binary neutron star (BNS) mergers from the late stage of the inspiral process up to about 20 ms after the system has merged, either to form a hyper-massive neutron star (NS) or a rotating black hole (BH).

Speaker: Alessandra Feo (INFN)

Slides feo.pdf

11:45 → 12:00 Coffee Break

12:00 → 12:45 Random Matrix Models and Finite Density QCD

Speaker: Prof. Jacobus Verbaarschot (Stony Brook University)

Slides Verbaarshot.pdf

12:45 → 13:30 Cold asymmetric quark matter

Asymmetric matter having nonvanishing isospin and/or strangeness chemical potential can be studied by different methods. For asymptotic values of the chemical potentials, perturbative QCD methods and future lattice QCD simulation may have significant overlap. For non-extreme values of the asymmetry, chiPT, lattice QCD simulations and NJL-like models can be used. The meson condensed phases will be examined focusing on the interplay between chiPT methods and lattice QCD simulations. The possible BEC-BCS crossover will be discussed by a simple thermodynamic analysis.

Speaker: Massimo Mannarelli

Slides mannarelli.pdf

13:30 → 14:30 Lunch

14:30 → 15:15 Strangeness studies on DAFNE collider to unlock secrets of neutron stars

Speakers: Dr Catalina Oana Curceanu (LNF), Mr Kristian Piscicchia (LNF)

Slides catalina-kristian-10june2016.pdf

15:15 → 16:00 Quark deconfinement in neutron stars and astrophysical implications

Speaker: Ignazio Bombaci (PI)

Slides bombaci_Frascati_2016.pdf

16:00 → 16:30 Coffee Break

16:30 → 17:15 Signature in the gravitational wave signal of the two-families scenario: the merger of two neutron stars

Speaker: Alessandro Drago (LNF)

Slides drago.pdf

17:15 → 18:00 Towards Gravitational-Wave Asteroseismology

Speaker: Omar Benhar Noccioli (ROMA1)

Slides benhar.pdf