The 59th Winter Nuclear & Particle Physics Conference (WNPPC2022)

Session

Nuclear Physics / Nuclear Astrophysics / Gravitational Waves

16 Feb 2022, 08:00

virtual

Conveners

Nuclear Physics / Nuclear Astrophysics / Gravitational Waves

• Miriam Diamond (University of Toronto)

67. Nucleosynthesis and Neutrinos in Explosive Astrophysical Events

Nicole Vassh (TRIUMF)

16/02/2022, 08:00

Nuclear and Particle Physics

The heaviest elements observed in nature are understood to be produced by the rapid neutron capture process (r process), but which astrophysical site(s) host this process remains an open question. The extreme astrophysical conditions required to synthesize neutron-rich nuclei points to explosive events, and in fact core-collapse supernovae (CCSNe) were a long favored site of heavy element...

12. Between the s and r Process: Nuclear Data Needs of Radioactive Species to Understand Stellar Abundances from the Early Universe

Falk Herwig (University of Victoria)

16/02/2022, 08:24

Nuclear and Particle Physics

The observation of elemental abundances in the most metal-poor stars have revealed the operation of a neutron-capture regime intermediate between the familiar slow (s) and rapid (r) process regimes. This i process can be activated when the H- and He-burning shells interact convectively, which is possible in low-metallicity conditions found in the early universe. The i process is the result of...

24. Charge Changing Cross Section Measurements of Carbon Isotopes at the Neutron-drip Line

P. Subramaniyam (Saint Mary’s University)

16/02/2022, 08:36

Nuclear Structure

Exotic features like halo and the disappearance of the magic numbers were revealed by investigating the nuclei towards the neutron-rich region resulting from the large neutron/proton asymmetry. The halo occurrence in the neutron-rich nuclei originates due to a large spatial extension of the density of the outermost neutrons. The proton radius is an important property to understand the...

28. Spontaneous Symmetry Breaking and its Effects

Mr Vahid Shokollahiabhari (University of Saskatchewan)

16/02/2022, 08:48

Physics Beyond the Standard Model

In physics, symmetry breaking is a phenomenon in which (infinitesimally) small
fluctuations acting on a system crossing a critical point decide the system’s fate, by
determining which branch of bifurcation is taken. To an outside observer unaware of the
fluctuations, the choice will appear arbitrary. This process is called symmetry breaking,
because such transitions usually bring the...

29. Phase Transition and Gravitational Wave Signatures

Hanxiao Pu

16/02/2022, 09:00

Physics Beyond the Standard Model

I will discuss the conformal and non-conformal two Higgs doublet model with a focus on their phase transition and gravitational wave signatures. The construction of the finite temperature effective potential of both models will be discussed in detail. Compared to the non-conformal case, the conformal model yields a very interesting phase diagram in the 2-dimensional parameter space...