Roy is dedicating time towards achieving a successful design of the MUSE liquid hydrogen cryotarget system. By better understanding that dynamic, he said, they can better understand fundamental aspects of the nuclear structure, as well as related systems such as neutron stars. Roy spent five years at the Thomas Jefferson National Accelerator Facility and Florida State University to extract a set of polarization observables which are crucial to understanding the excited states of the proton. Users are the scientists, from across the U. Roy’s thesis research was focused on the proton’s spectrum of excited states.

QCD is the theory that describes the interaction that holds quarks together to form neutrons and protons, the particles that comprise nuclei. Roy also plans to become involved in the development of the MUSE data analysis software in parallel. Department of Energy’s Office of Science. Baroni approached the study of neutrinos differently: By understanding the baryon spectrum one can get an insight into the effective degrees of freedom in baryons such as the proton.

jsa thesis prize

Or Hen grew up on a moshav in Israel in a family of chicken farmers. This tool allowed Baroni to model certain interactions of protons and neutrons with each other jsx with external probes, such as electrons and neutrinos.

MIT physicist wins thesis prize for doctoral research at Jefferson Lab

Four areas are considered in rating the submitted theses: When it comes to laying bare the secrets of the proton, Priyashree Roy’s efforts at the Thomas Jefferson National Accelerator Facility have already contributed a whole swath of new information useful to pfize.

That’s where these polarization observables become very important,” she said.

jsa thesis prize

These observables, and the 10 first-time measurements, specifically, provide new information to improve existing models and tools for understanding the proton’s spectrum.


These observables, many of which are first-time measurements, are immensely useful in revealing the excited states contributing jsaa these two reactions with minimal ambiguities. Hen has been using the lab’s electron beam accelerator for the past eight years as he worked toward a doctorate in physics jsx Tel Aviv University. Roy’s work is described in her Ph.

Thesis prize winner’s calculations characterize neutrino interactions

Initiatives Fund awards are for those projects that benefit the lab user community and that leverage commitments of others. The simultaneous measurements will allow them to compare the two results with a good control on the systematic uncertainties and hopefully resolve the proton radius conundrum. It was a pleasure to read the tesis theses and very challenging to select the winner,” said Larry Weinstein, chair of the UGBoD and professor and eminent scholar at Old Dominion University.

Roy for her outstanding achievement!

jsa thesis prize

Now, she is hard at work on research for the MUSE experiment, which aims to resolve the ‘proton radius puzzle’ – the discrepancy in determinations of the proton’s electric charge radius between two methods of measurements: Jefferson Lab is supported by the Office of Science of the U.

The Users Group Board of Directors oversees the award process. For more information, please visit science. And that’s a challenge that people are trying to solve.

Thesis prize winner explores the proton’s spectrum | EurekAlert! Science News

The experimenters carefully tuned the polarizations of the target and beam during the experiment. In kindergarten, for instance, he was diagnosed with a neurological disorder called dysgraphia that causes writing to be distorted and words inappropriately sized or spaced or misspelled. Baroni used chiral effective field theory to derive and test nuclear axial currents, which are calculations that describe these processes.


By comparing the different results from this polarization tuning, Roy was able to extract so-called polarization observables. Submit Site Search Search. Users are the scientists, from across the U.

For more information, visit science. These dynamical interactions are responsible for many electroweak processes relevant to the neutrino experimental program, including neutrino interactions with nuclei and single- and double-beta decays.

She is now at the University of Michigan Department of Physics to continue the study of this elementary nuclear particle, which is one of the essential ingredients of matter. These observables, including 10 that had never before been measured, can be used by researchers to help identify the excited states. Hen already has more experiments scheduled at the lab during the next several years to advance his research even farther.

One of the several possible outcomes of the proton-photon interactions was that the proton attained an excited state which quickly de-excited to the lowest energy state via emission of various kinds isa final-state particles. Tamara Dietrich Contact Reporter tdietrich dailypress. Baroni’s work has shown that such interactions can now be studied within the chiral effective field theory approach. Department of Energy’s Office of Science.

Baroni is currently a postdoctoral researcher at the University of South Carolina, where he continues to work in low energy theoretical nuclear physics. To disentangle them, we thesks polarized measurements, because that gives us additional information.