Publications [LaTeX]
Papers
International Journals
1 - Probing hybrid stars and the properties of the special points with radial oscillations
C. Gärtlein, O. Ivanytskyi, V. Sagun, D. Blaschke
Phys. Rev. D 108, 114028 (2023)
2 - Bosonic dark matter in neutron stars and its effect on gravitational wave signal
D. R. Karkevandi, S. Shakeri, Violetta Sagun, O. Ivanytskyi
Phys. Rev. D 105, 023001 (2022)
3 - Landau parameters and entrainment matrix of cold stellar matter: effect of the symmetry energy and strong magnetic fields
Helena Pais, Oleksii Ivanytskyi, Constança Providência
J. Cosmol. Astropart. Phys. 04, 024, 024 (2022)
4 - Colliding and Fixed Target mode in a single experiment - a novel approach to study the matter under new extreme conditions
O. V. Vitiuk, V. M. Pugatch, K. A. Bugaev, N. S. Yakovenko, P. P. Panasiuk, E. S. Zherebtsova, V. M. Dobishuk, S. B. Chernyshenko, B. E. Grinyuk, Violetta Sagun, O. Ivanytskyi
Particles 5, 245 (2022)
5 - Thermal production of sexaquarks in heavy-ion collisions
D. Blaschke, L. Bravina, K. Bugaev, G. R. Farrar, B. Grinyuk, O. Ivanytskyi, S. Kabana, S. V. Kuleshov, I. K. Potashnikova, Violetta Sagun, A. Taranenko, O. V. Vitiuk, E. Zabrodin, X. Zhang, D. Zhou
Intern. J. Mod. Phys. A 36, 2141005 (2021)
6 - Induced surface and curvature tension equation of state for hadron resonance gas in finite volumes and its relation to morphological thermodynamics
K. A. Bugaev , O. V. Vitiuk , B. E. Grinyuk , P. P. Panasiuk , N. S. Yakovenko , E. S. Zherebtsova , Violetta Sagun , O. I. Ivanytskyi , L. V. Bravina , D. B. Blaschke , S. Kabana , S. V. Kuleshov , A. V. Taranenko , E. E. Zabrodin and G. M. Zinovjev
Intern. J. Mod. Phys. A 36, No. 34n35, 2141009 (2021)
7 - Classical excluded volume of loosely bound light (anti) nuclei and their chemical freeze-out in heavy ion collisions
B. E. Grinyuk, K. A. Bugaev, Violetta Sagun, O. I. Ivanytskyi, D. L. Borisyuk, A. S. Zhokhin, G. M. Zinovjev, D. B. Blaschke, L. V. Bravina, E. E. Zabrodin, E. G. Nikonov, G. Farrar, S. Kabana, S. V. Kuleshov, A. V. Taranenko
International Journal of Modern Physics E 29, 2040009 (2020)
8 - Second virial coefficients of light nuclear clusters and their chemical freeze-out in nuclear collisions
K. A. Bugaev, O. V. Vitiuk, B. E. Grinyuk, Violetta Sagun, N. S. Yakovenko, O. I. Ivanytskyi, G. M. Zinovjev, D. B. Blaschke, E. G. Nikonov, L. V. Bravina, E. E. Zabrodin, S. Kabana, S. V. Kuleshov, G. R. Farrar, E. S. Zherebtsova, A. V. Taranenko,
Eur. Phys. J. A 56, 293 (2020)
9 - Neutron stars: New constraints on asymmetric dark matter
O. Ivanytskyi, Violetta Sagun, and I. Lopes
Phys. Rev. D 102, 063028 (2020)
10 - Second look to the Polyakov Loop Nambu-Jona-Lasinio model at finite baryonic density
O. Ivanytskyi, M. Ángeles Pérez-Garcı́a, Violetta Sagun, C. Albertus
Phys. Rev. D 100, 103020 (2019)
Proceedings
International Conferences
11 - Tidal deformability as a probe of dark matter in neutron stars
D. R. Karkevandi, S. Shakeri, Violetta Sagun, O. Ivanytskyi
Intern. J. Mod. Phys. D, Proceedings of the Sixteenth Marcel Grossmann Meeting on General Relativity Online; 5-10 July 2021., 3713-3731 (2023)
12 - How does dark matter affect compact star properties and high density constraints of strongly interacting matter
Violetta Sagun, E. Giangrandi, O. Ivanytskyi, C. Providência, T. Dietrich
EPJ Web Conf., Proceedings of the 15th Quark Confinement and the Hadron Spectrum Conference (QConf) 274, 07009 (2022)
13 - Constraints on the fermionic dark matter from observations of neutron stars
Violetta Sagun, E. Giangrandi, O. Ivanytskyi, I. Lopes, K. A. Bugaev
Proceedings of Science (PoS), Proceedings of the Particles and Nuclei International Conference (PANIC2021) 380, 313 (2022)
14 - Chemical freeze-out of light nuclei in high energy nuclear
collisions and resolution of the hyper-triton chemical freeze-out puzzle
K.A. Bugaev, O.V. Vitiuk, B.E. Grinyuk, N.S. Yakovenko, E.S. Zherebtsova, Violetta Sagun, O.I. Ivanytskyi, D.O. Savchenko, L.V. Bravina, D.B. Blaschke, G.R. Farrar, S. Kabana, S.V. Kuleshov, E.G. Nikonov, A.V. Taranenko, E.E. Zabrodin, G.M. Zinovjev
J. Phys.: Conf. Ser., Proceedings of the 5th International Conference on Particle Physics and Astrophysics (ICPPA-2020), 5-9 October 2020, Moscow, Russian Federation 1690, 012123 (2020)
Communications
Invited
15 - Constraints on dark matter from observations of neutron stars and their mergers
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
Invited seminar at the Gr@v group, University of Aveiro, Portugal, 19 October (2022)
16 - Impact of dark matter on compact stars and their merger dynamics
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
Invited seminar at the Laboratoire de Physique des 2 infinis Irène Joliot-Curie – IJCLab, Université Paris-Saclay, France, 5 November (2022)
17 - Probing dark matter with neutron stars
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the IPA2022: Interplay between Particle and Astroparticle physics 2022, Vienna University of Technology, Vienna, Austria, 5 - 9 September (2022)
18 - Thermal production of Sexaquarks in Heavy Ion Collisions
D. Blaschke, L. Bravina, K. Bugaev, G. Farrar, B. Grinyuk, O. Ivanytskyi, S. Kabana, Violetta Sagun, A. Taranenko, E. Zabrodin, X. Zhang and D. Zhou
at the 8-th International Conference on New Frontiers in Physics (ICNFP2019), Kolymbari, Crete, Greece, August 21-29 (2019)
Oral
19 - Impact of asymmetric fermionic and bosonic dark matter on neutron star properties
Violetta Sagun, Oleksii Ivanytskyi, Edoardo Giangrandi
at the Institute for Nuclear Theory workshop (INT-20R-1B) “The r-process and the nuclear EOS after LIGO-Virgo’s third observing run”, Institute for Nuclear Theory, Seattle, USA, 23 - 27 May (2022)
20 - Compact stars as dark matter probes
Violetta Sagun, T. Dietrich, M. Emma, E. Giangrandi, O. Ivanytskyi, I. Lopes, F. Pannarale, C. Providência, F. Schianchi
at the Kashiwa Dark Matter symposium,
University of Tokyo, Tokyo, Japan, November 29 - December 2 (2022)
21 - Effect of dark matter on observable neutron star’s properties and its discrimination from the strongly interacting matter equation of state
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the 18th International Conference on QCD in Extreme Conditions (XQCD 2022), Norwegian University of Science and Technology, Trondheim,
Norway, 27 - 29 July (2022)
22 - The effect of dark matter on compact stars and constraints we put on strongly interacting matter at high densities
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the Institute for Nuclear Theory workshop (INT-22-2b) “Dark Matter in Compact Objects, Stars, and Low-Energy Experiments ”, Institute for Nuclear Theory, Seattle, USA, 1 August - 2 September (2022)
23 - How dark matter affects compact star’s properties and constraints we put on strongly interacting matter at high densities
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the “XVth Quark Confinement and the Hadron Spectrum” conference, University of Stavanger, Stavanger, Norway, 1 - 6 August (2022)
24 - Bosonic Dark Matter in Neutron Stars and Gravitational Waves
D. R. Karkevandi, S. Shakeri, Violetta Sagun, O. Ivanytskyi
at the Sixteenth Marcel Grossmann Meeting (MG16), online, 5-10 July (2021)
25 - Probing strongly interacting matter properties with compact objects
Edoardo Giangrandi, Violetta Sagun, Oleksii Ivanytskyi, Constança Providência, Tim Dietrich
at the 21th Zimányi School, Winter Workshop on Heavy-Ion Physics, Budapest, Hungary, 6-10 December (2021)
26 - Impact of asymmetric bosonic dark matter on neutron star properties
Edoardo Giangrandi, Violetta Sagun, Oleksii Ivanytskyi, Constança Providência, Tim Dietrich
XII Conference of Young Scientists "Problems of Theoretical Physics" - Bogolyubov Institute for Theoretical Physics (Kyiv, Ukraine), online, 21-23 December (2021)
27 - The unified equation of state with induced surface tension consistent with astrophysical, gravitational, high- and low- energy nuclear physics data
Violetta Sagun, O. Ivanytskyi, Constança Providência
at the Virtual Tribute to Quark Confinement and the Hadron Spectrum 2021 - ConfXIV, 2-6 August (2021)
28 - Neutron stars as dark matter probes
Violetta Sagun, O. Ivanytskyi, D. R. Karkevandi, S. Shakeri, I. Lopes
at the Modern Physics of Compact Stars and Relativistic Gravity, Yerevan, Armenia, 27-30 September (2021)
29 - The impact of dark matter on compact stars
Violetta Sagun, O. Ivanytskyi, I. Lopes
The 57 Karpacz Winter School in Theoretical Physics, Karpacz, Poland, 13-19 June (2021)
30 - How neutron stars can help us to constrain dark matter
Violetta Sagun, O. Ivanytskyi, I. Lopes
The Iberian Cosmology Meeting (IberiCOS 2021), University of Coimbra, Coimbra, 29 March - 1 April (2021)
31 - Constraints on the fermionic dark matter from observations of neutron stars
Violetta Sagun, O. Ivanytskyi, I. Lopes
at the Particles and Nuclei International Conference - PANIC2021, online, 5-10 September (2021)
32 - Dark-matter admixed neutron stars
Violetta Sagun, O. Ivanytskyi, I. Lopes
at the IWARA2020 Video Conference - 9th International Workshop on Astronomy and Relativistic Astrophysics, 6-12 September (2020)
33 - Dark matter effect on the neutron star properties
Violetta Sagun, O. Ivanytskyi, I. Lopes
The 56 Karpacz Winter School in Theoretical Physics, Karpacz, Poland, 24 - 28 February (2020)
34 - Constraints on the fraction of cold fermionic dark matter particles inside the neutron stars
Violetta Sagun, O. Ivanytskyi, I. Lopes
at the ICPPA - 5th International Conference on Particle Physics and
Astrophysics, 5-9 October (2020)
35 - Unified equation of state consistent with astrophysical, gravitational, high- and low- energy nuclear physics data
Violetta Sagun, O. Ivanytskyi, I. Lopes
International workshop “Multi-Messenger Astrophysics in the Gravitational Wave Era”, Yukawa Institute for Theoretical Physics, Kyoto University, Japan, 24 September - 11 October (2019)
36 - Astrophysical constraints on the dark matter core inside the neutron stars
Violetta Sagun, O. Ivanytskyi, I. Lopes
XIX National Meeting of Astronomy and Astrophysics (ENAA), Instituto Superior Tecnico, Lisbon, Portugal, 12 - 13 September (2019)
Poster
37 - The effect of dark matter on neutron stars and their merger dynamics
Violetta Sagun, E. Giangrandi, O. Ivanytskyi, T. Dietrich, C. Providência
at the Gravitational Wave Physics and Astronomy Workshop 2022 (GWPAW), Melbourne, Australia, 5-9 December (2022)
38 - GW190814 secondary component as a dark matter admixed neutron star
Violetta Sagun, Oleksii Ivanytskyi, Edoardo Giangrandi
at the PHAROS Conference 2022, Rome, Italy, 16 - 19 May (2022)
39 - Probing dark matter with neutron stars
Violetta Sagun, O. Ivanytskyi, D. R. Karkevandi, S. Shakeri, E. Giangrandi, I. Lopes
at the Gravitational Wave Physics and Astronomy Workshop (GWPAW 2021),
Hannover, Germany, 14-17 December (2021)
40 - Thermal production of Sexaquarks in heavy ion collisions
D. Blaschke, L. Bravina, K. Bugaev, G. Farrar, B. Grinyuk, O. Ivanytskyi, S. Kabana, Violetta Sagun, A. Taranenko, E. Zabrodin, X. Zhang, D. Zhou
Quark Matter 2019 (2019)