INPP Seminar | Revealing the short range structure of the mirror nuclei 3H and 3He, Oct. 11

The Institute of Nuclear and Particle Physics Seminar series presents Shujie Li discussing "Revealing the short range structure of the mirror nuclei 3H and 3He"on Oct. 11 at 4 p.m.

Shujie Li is from Lawrence Berkeley National Laboratory.

In-person seminars will be in Lindley 321. For remote seminars, connection info for the video conference (TEAMS or ZOOM) and abstract of the talk will be communicated by email before the seminar. The emails are sent to the inpp-seminar mailing list. To be added to this mailing list, contact Prakash .

The host is Julie Roche.

Abstract : Nucleons being close together causes hard interactions due to the short (repulsive) and medium (tensor) range forces, creating energetic nucleon pairs. Understanding these high momentum nucleon pairs is important for both the realistic description of nuclear structures and for studying the transition between partonic to nucleonic degrees of freedom. In electron scattering experiments, the nucleon-nucleon short-range correlation (SRC) pairs are identified by their large initial momentums. Previous measurements at Jefferson Lab had observed a strong isospin-dependence of those pair configurations in light and heavy nuclei and found strong np dominance, i.e. almost entirely neutron-proton SRCs. I will present the results from a recent Jefferson Lab measurement on the mirror nuclei tritium and helium-3 which finds a much smaller np enhancement with high precision. This indicates the strong nucleon-nucleon interaction is sensitive to the nuclear environment. In this talk I will go through the tritium SRC experiment, present it’s unexpected results, and discuss their implications and some future experiments to study nucleon-nucleon interactions and in-medium modifications