# For more information about this program, please contact the physics department PAN group

## Workshop ‘Dynamic Quantum Matter’ organized by UConn faculty

Dynamic Quantum Matter, Entangled orders and Quantum Criticality Workshop, June 18- June 19, 2018, sponsored by UConn, NSF, Nordita, Villum Center for Dirac Materials, Institute for Materials Science. The conference focused on entangled and non-equilibrium orders in quantum materials.

[Read More]## Prof. Wuosmaa has been awarded a 3-year grant

Prof Alan Wuosmaa has been awarded a grant for 3 years for Studies of exotic nuclei with transfer reactions. For the information about Prof. Wuosmaa research visit his home page.

[Read More]## Prof. Blum has been selected a “Fermilab Distinguished Scholar”

Professor Tom Blum has been selected a “Fermilab Distinguished Scholar”. Fermilab Distinguished Scholars are rotating multi-year appointments for U.S. theorists in either the Fermilab Theoretical Physics Department or the Theoretical Astrophysics Group. The Fermilab Distinguished Scholars program aims to: Strengthen connections between the Fermilab Theoretical Physics and Astrophysics groups and the wider U.S. particle-theory community. […]

[Read More]## LQCD workshop to take place in Storrs

Muon g-2 Theory Initiative Hadronic Light-by-Light working group workshop

Workshop participants will discuss recent progress and plans to determine the hadronic light-by-light scattering contribution to the muon anomalous magnetic moment, which is expected to contribute the largest uncertainty in the Standard Model prediction. The goal of the workshop is to estimate current and expected systematic errors from lattice QCD, dispersive methods, and models and create a plan to address them in time for new experiments at Fermilab and J-PARC.

[Read More]## Alex Barnes, PhD April 2017, begins post-doctoral fellowship in Nuclear Physics at CMU

In May, 2017 UConn alumnus Alex Barnes was awarded a postdoctoral fellowship in Nuclear Physics at Carnegie Mellon University, working in the group of Prof. Curtis Meyer. Alex begins this appointment immediately after completing his PhD at the University of Connecticut in April 2017, under the guidance of Prof. Richard Jones. In his new position, […]

[Read More]## UConn undergraduate researcher developing new radon detector for household use

The U.S. Centers for Disease Control lists radon as a primary cause of lung cancer, second only to smoking. The Environmental Protection Agency estimates that 20,000 deaths each year from lung cancer in the U.S. are the result of exposure to radon in the living environment. It is believed that as many as 1 in […]

[Read More]## The newly upgraded CEBAF Accelerator opens door to strong force studies

Scientists have been rigorously commissioning the experimental equipment to prepare for a new era of nuclear physics experiments. This equipment is at the newly upgraded Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab in Newport News, Virginia. These activities have already led to the first scientific result. This research demonstrates the feasibility of detecting a potential new kind of particles known collectively as exotic hadrons. The existence and spectrum of these new particles hold important clues to unlocking the mystery of “quark confinement” — why no quark has ever been found alone.

[Read More]## UConn PhD student Daniel Horning receives Dept. of Energy fellowship

As a theoretical physicist studying the fundamental elements of matter, UConn graduate student Daniel Hoying creates calculations so large and complex they require supercomputers to perform them. So Hoying is obviously excited that he will soon have regular access to one of the world’s most powerful supercomputers at the U.S. Department of Energy’s Brookhaven National […]

[Read More]## Landmark g-2 experiment begins second phase in long career of testing the Standard Model

Instead of directly searching for new particles as the LHC experiments are doing in Geneva, the muon g-2 experiment at Fermilab measures a well-known physical property of the muon to ever greater precision, looking for deviations from the value it should have based on the Standard Model of particle physics, assuming that no new forces […]

[Read More]## GlueX experiment publishes first scientific results following accelerator upgrade

Researchers working with the Continuous Electron Beam Accelerator Facility (CEBAF) at the U.S. Department of Energy’s Jefferson National Accelerator Facility (J-Lab) have published their first scientific results since the accelerator energy was increased from six billion electron volts (GeV) to 12 GeV. The upgrade was commissioned to enable the next generation of physics experiments that will allow scientists to see smaller bits of matter than have ever been seen before. The first publication from the upgraded CEBAF was published by the GlueX collaboration in the April issue of Physical Review C.

[Read More]-
Prof. Gerald Dunne, Department of Physics, University of Connecticut, "Resurgent Extrapolation: Squeezing Non-Perturbative Information from Perturbation Theory", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
4/29
#### Prof. Gerald Dunne, Department of Physics, University of Connecticut, "Resurgent Extrapolation: Squeezing Non-Perturbative Information from Perturbation Theory", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, April 29th, 2019

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Prof. Gerald Dunne, Department of Physics, University of Connecticut

Resurgent Extrapolation: Squeezing Non-Perturbative Information from Perturbation Theory

Extrapolation is an important problem in physics: how to use asymptotic data in one parametric regime to learn about the behavior of a physical function in another parametric regime. For example: extending weak coupling expansions to strong coupling, or high temperature expansions to low temperature, or vice versa. I present new methods from "resurgent asymptotics" that dramatically improve standard numerical procedures for performing such an extrapolation: Borel summation, Pad'e approximants and conformal mapping. I illustrate the method with the concrete example of one of the Painlev'e equations, a class of nonlinear equations with many applications in physics. Starting solely with a finite number of asymptotic coefficients, we obtain a high precision extrapolation of the function throughout the complex plane, even across a phase transition. The precision far exceeds that of state-of-the-art numerical integration methods.Contact Information: Prof. L. Jin

More -
Prof. Jordy de Vries, University of Massachusetts Amherst, "Neutrinoless double beta decay in effective field theory", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
4/22
#### Prof. Jordy de Vries, University of Massachusetts Amherst, "Neutrinoless double beta decay in effective field theory", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, April 22nd, 2019

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Prof. Jordy de Vries, University of

Massachusetts Amherst

Neutrinoless double beta decay in effective field theory

Next-generation neutrinoless double-beta decay (0nu2beta) experiments aim to discover lepton number violation in order to shed light on the nature of neutrino masses. A non-zero signal would have profound implications by demonstrating the existence of elementary Majorana particles and possibly pointing towards a solution of matter-antimatter asymmetry in the universe. However, the interpretation of the experimental signal (or lack thereof) requires care as complicated hadronic and nuclear input is required to connect the experimental data to a fundamental description of lepton-number violation. In this talk, I use effective field theories to connect 0nu2beta measurements to the fundamental lepton-number-violating source. In particular, I will argue that interpretation in terms of a light Majorana neutrino mass is more complicated than normally considered, and a new leading contributions must be included.Contact Information: Prof. L. Jin

More -
Dr. Yu-Sheng Liu, Tsung-Dao Lee Institute, Shanghai , "First Principle Calculation of PDFs from LaMET", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
4/15
#### Dr. Yu-Sheng Liu, Tsung-Dao Lee Institute, Shanghai , "First Principle Calculation of PDFs from LaMET", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, April 15th, 2019

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Dr. Yu-Sheng Liu, Tsung-Dao Lee Institute, Shanghai

First Principle Calculation of PDFs from LaMET

Parton distribution functions (PDFs) are important

quantities describing the probability densities of constituents of hadrons and serve as key inputs in high energy experiments. PDFs, with their nonperturbative nature and intrinsic Minkowski time dependence, can only obtain from phenomenological global fits for decades. A breakthrough came with the Large Momentum Effective Theory (LaMET), which allows us to extract PDFs on the lattice. In this talk, I will introduce the framework of LaMET, then give a lattice simulation example to demonstrate how it works.Contact Information: Prof. L. Jin

More -
Prof. Ben Heidenreich, University of Massachusetts Amherst, "Quantum gravity and the swampland", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
4/1
#### Prof. Ben Heidenreich, University of Massachusetts Amherst, "Quantum gravity and the swampland", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, April 1st, 2019

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Prof. Ben Heidenreich, University of Massachusetts Amherst

Quantum gravity and the swampland

I review the "swampland" approach to extracting testable predictions from quantum gravity, with a particular focus on the Weak Gravity Conjecture as a well developed example.Contact Information: Prof. L. Jin

More -
The talk has been rescheduled for April 22, RESCHEDULED: Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
3/18
#### The talk has been rescheduled for April 22, RESCHEDULED: Particle, Astrophysics, and Nuclear Physics Seminar

Monday, March 18th, 2019

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121The talk has been rescheduled for April 22

Prof. Jordy de Vries, University of

Massachusetts Amherst

Neutrinoless double beta decay in effective field theory

Next-generation neutrinoless double-beta decay (0nu2beta) experiments aim to discover lepton number violation in order to shed light on the nature of neutrino masses. A non-zero signal would have profound implications by demonstrating the existence of elementary Majorana particles and possibly pointing towards a solution of matter-antimatter asymmetry in the universe. However, the interpretation of the experimental signal (or lack thereof) requires care as complicated hadronic and nuclear input is required to connect the experimental data to a fundamental description of lepton-number violation. In this talk, I use effective field theories to connect 0nu2beta measurements to the fundamental lepton-number-violating source. In particular, I will argue that interpretation in terms of a light Majorana neutrino mass is more complicated than normally considered, and a new leading contributions must be included.Contact Information: Prof. L. Jin

More -
Prof. Zohreh Davoudi, University of Maryland., "Towards analog and digital quantum simulations of strongly-interacting dynamics", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
3/4
#### Prof. Zohreh Davoudi, University of Maryland., "Towards analog and digital quantum simulations of strongly-interacting dynamics", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, March 4th, 2019

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Prof. Zohreh Davoudi, University of Maryland.

Towards analog and digital quantum simulations of strongly-interacting dynamics

According to Feynman, quantum computers will be the most suitable platforms to simulate nature. Although as of today, quantum computers with capability and reliability comparable or beyond those of classical computers do not exist, rapid progress in quantum technologies, and a vast growth in interest and resources in quantum information sciences, promise a future in which quantum computation may play an important role in addressing computationally-challenging problems in all areas of sciences and technology. Nuclear and high-energy physics are among the areas in which high-performance computing has been applied successfully to address a range of problems arising from the strong-interactions dynamics. However, our current approach has severe limitations when it comes to investigations of finite-density systems or real-time dynamics. It is believed that a quantum computational approach to such problems is superior to classical approaches, but it remains an open question how to reformulate problems accordingly to harness the quantum advantage on

near-term and future devices. This talk will report on some of the progress made in addressing this question in simple strongly-interacting models, with a focus on an ongoing work at the University of Maryland that leverages on the existing quantum hardware, in particular the ion-trap quantum simulator and quantum computer.Contact Information: Prof. L. Jin

More -
Dr. David Murphy, MIT, "Matrix Elements for Neutrinoless Double Beta Decay from Lattice QCD", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
11/26
#### Dr. David Murphy, MIT, "Matrix Elements for Neutrinoless Double Beta Decay from Lattice QCD", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, November 26th, 2018

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Dr. David Murphy, MIT

Matrix Elements for Neutrinoless Double Beta Decay from Lattice QCD

While neutrino oscillation experiments have demonstrated that neutrinos have small, nonzero masses, much remains unknown about their properties and decay modes. One potential decay mode --- neutrinoless double beta decay (\(0 \nu \beta \beta\)) --- is a particularly interesting target of experimental searches, since its observation would imply both the violation of lepton number conservation in nature as well as the existence of at least one Majorana neutrino, in addition to giving further constraints on the neutrino masses and mixing angles. Relating experimental constraints on \(0 \nu \beta \beta\) decay rates to the neutrino masses, however, requires theoretical input in the form of non-perturbative nuclear matrix elements which remain difficult to calculate reliably. In this talk we will discuss progress towards first-principles calculations of relevant nuclear matrix elements using lattice QCD and effective field theory techniques, assuming neutrinoless double beta decay mediated by a light Majorana neutrino.Contact Information: Prof. L. Jin

More -
John Donoghue, UMass Amherst, "A possible QFT pathway for UV complete quantum gravity", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
10/29
#### John Donoghue, UMass Amherst, "A possible QFT pathway for UV complete quantum gravity", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, October 29th, 2018

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121John Donoghue, UMass Amherst

A possible QFT pathway for UV complete quantum gravity

This is a study of a renormalizable quantum field theory for gravity. It makes use of a gravitational sector which is weakly coupled at all scales, and a helper Yang Mills gauge theory which becomes strong at the Planck scale. While it has an unstable ghost in the propagator, and other unusual properties, unitarity is satisfied at the one loop level as determined by explicit calculation. Further

explorations will be discussed.Contact Information: Prof. G. Dunne

More -
Dr. Yuya Tanizaki, RIKEN-BNL, "Constraints on possible dynamics of QCD by symmetry and anomaly", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
10/22
#### Dr. Yuya Tanizaki, RIKEN-BNL, "Constraints on possible dynamics of QCD by symmetry and anomaly", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, October 22nd, 2018

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Dr. Yuya Tanizaki, RIKEN-BNL

Constraints on possible dynamics of QCD by symmetry and anomaly

Low-energy dynamics of Quantum Chromodynamics (QCD) is an important subject for nuclear and hadron physics, but it is a strongly coupled system and difficult to solve. In this situation, symmetry and also anomaly give us an important guide to make a solid conclusion on possible

behaviors of QCD. We will give a brief review on recent development of anomaly matching condition, starting from a simple quantum mechanical example. After that, we explain the newly found anomaly of QCD in chiral limit, and discuss the conclusion of anomaly matching.Contact Information: Prof. L. Jin

More -
Prof. Gerald Dunne, Department of Physics, University of Connecticut, "Resurgence and Phase Transitions", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
9/24
#### Prof. Gerald Dunne, Department of Physics, University of Connecticut, "Resurgence and Phase Transitions", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, September 24th, 2018

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Prof. Gerald Dunne, Department of Physics, University of Connecticut

Resurgence and Phase Transitions

Resurgence is a new approach to quantum field theory that combines perturbative and non-perturbative effects in a unified framework. I'll give an overview of the key ideas and discuss applications to phase transitions in physical problems. The main motivation is to find a new way to probe the QCD phase diagram. In this approach, a phase transition is interpreted as a change of dominant saddle in a path integral or partition function. Examples include the Ising model, chiral symmetry breaking in the Gross-Neveu model, the Thirring and Hubbard models, and the large N phase transition in 2d lattice gauge theory.Contact Information: Prof. L. Jin

More -
Dr. Ming Li, Department of Physics, University of Connecticut, "High Baryon Densities Achievable in the Fragmentation Regions of High Energy Heavy-Ion Collisions", Particle, Astrophysics, and Nuclear Physics Seminar2:00pm
9/17
#### Dr. Ming Li, Department of Physics, University of Connecticut, "High Baryon Densities Achievable in the Fragmentation Regions of High Energy Heavy-Ion Collisions", Particle, Astrophysics, and Nuclear Physics Seminar

Monday, September 17th, 2018

02:00 PM - 03:00 PM

Storrs Campus

Gant West (Physics Building), P121Dr. Ming Li, Department of Physics, University of Connecticut

High Baryon Densities Achievable in the Fragmentation Regions of High Energy Heavy-Ion Collisions

In high energy heavy-ion collisions, the two colliding nuclei pass through each other leaving behind an almost baryon-free central region. Most of the baryon charges are carried away by the receding nuclear remnants. During the collisions, a large amount of kinetic energy is deposited in the central region where a new form of matter called quark-gluon plasma is formed. At the same time, the colliding nuclei are highly compressed, resulting in very high baryon densities in the nuclear remnants. In this talk, I will explore the high baryon density achievable in the nuclear remnants and study the hydrodynamic evolution of the high baryon density matter.

This seminar was originally scheduled for September 10.Contact Information: Prof. L. Jin

More