[Theory-seminars] Theory Seminars Monday - Peter Meinzinger & Srimoyee Sen

[Colin Egerer]

Hello All,

This coming Monday, April 3rd, we will have two hybrid theory seminars. The first seminar will be given by Peter Meinzinger at 9 am (EDT) in CC F224-225, and Srimoyee Sen will give the second seminar at 1 pm (EDT) in CC L102. We would like to highlight that Srimoyee Sen's seminar is one of the ODU + JLab joint position interviews. If you will be on-site and are comfortable doing so, please join us for both seminars. Otherwise, each seminar will also be provided virtually on our usual ZoomGov link: https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09

Please see below for the titles and abstracts.

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Theory Seminar
Monday, April 3rd at 9:00 AM [F224-225]

Peter Meinzinger (Durham University)
will discuss "Event simulation of ep collisions: a theory introduction to electro- vs photoproduction"

Abstract:
Electron--proton collisions are an important mode for, e.g., determination of parton distribution functions, making it necessary to understand the dynamics and kinematics of these collisions. To achieve highest precision in the different observables it is necessary to develop simulations of these events which leverage the Fixed Order calculations and match them to the parton showers. I will review the status of the simulation of high-virtuality DIS production modes in the event generator community and make the case for a simulation of the complementary photoproduction modes. The latter mode will allow for an understanding of the full dynamics of the system and solve the problem of the different scales. I will present the current status of photoproduction at NLO accuracy in the Sherpa event generator and discuss how to merge the two modes to arrive at a complete picture of electron--proton collision in the future.
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Theory Seminar
Monday, April 3rd at 1:00 PM [L102]

Srimoyee Sen (Iowa State University)
will discuss "Quark matter vs nuclear matter : a topological transition"

Abstract:
Dense astrophysical objects like neutron stars allow us to explore the phase diagram of QCD at very low temperature and very high density. The outer layers of the star are made up of nuclear matter and the inner core of quark matter. A natural question that follows is whether nuclear matter and quark matter are necessarily separated by a phase boundary. I discuss how new insight from topological phases in quantum materials support the existence of such a phase boundary. I also discuss how future lattice simulations may help us reach a conclusive answer to this question.
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Have a pleasant weekend!
Caroline, Colin, & Patrick
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