[Sbs] [EXTERNAL] Maria's Thesis Defense: Thurs May 8, 9:30 am

[Satnik, Maria]

Hello SBS collaboration,

Todd and I would like to invite you all to my thesis defense! Information is found below.

Thanks,
Maria Satnik
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Final Oral Examination for the Ph. D. Degree

Department of Physics



Maria Satnik

“Precision Measurement of the Neutron Magnetic Form Factor via the Ratio Method at Jefferson Lab Hall A”


Thursday, 8 May 2025, 9:30 a.m. Eastern Time (US/Canada)

William & Mary, Small Hall, Room 122



You are invited to join the scheduled Zoom Meeting<https://urldefense.proofpoint.com/v2/url?u=https-3A__cwm.zoom.us_j_89737278278&d=DwIGaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=IebRyMSEbnsVTrj8mJhCLQ&m=KaFvqy0NKTnt6_NZmAG33uFYujZYhL5IsMObrxuBM-PmzuNl-ffecyPBIJ4UUIcx&s=bntTEtZTQa-DETXWeXg07GHPcSCrujwoEzadg0-HsN0&e= > <https://urldefense.proofpoint.com/v2/url?u=https-3A__cwm.zoom.us_j_89737278278&d=DwIGaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=IebRyMSEbnsVTrj8mJhCLQ&m=KaFvqy0NKTnt6_NZmAG33uFYujZYhL5IsMObrxuBM-PmzuNl-ffecyPBIJ4UUIcx&s=bntTEtZTQa-DETXWeXg07GHPcSCrujwoEzadg0-HsN0&e= >   ID: 897 3727 8278

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ABSTRACT

Protons and neutrons, collectively known as nucleons, are composed of quarks and gluons. The Sachs electromagnetic form factors are related to the spatial distributions of charge and magnetization in the nucleon, particularly at low momentum transfer. In particular, the neutron magnetic form factor (GnM) provides crucial information about the distribution of magnetization inside the neutron and helps constrain theoretical models of nucleon structure.

Quasi-elastic electron scattering from deuterium was measured up to Q2 = 13.6 GeV2 using the Super BigBite Spectrometer in Hall A at Jefferson Lab. In this work, the neutron magnetic form factor GnM was extracted at Q2 = 3.0 GeV2 and Q2 = 4.5 GeV2 using the Ratio Method. These results represent a subset of the full dataset taken in the experiment, which extended to significantly higher Q2 values.

The extracted GnM values achieved total uncertainties of 2.5−3.5%, consistent with preexisting physics data. These results reinforce confidence in the experimental technique and lay the groundwork for future extractions at even higher Q2, where data is currently sparse. A key component of the experimental apparatus, the GRINCH heavy gas Cherenkov detector, was also commissioned and demonstrated an electron detection efficiency of approximately 97%. The analysis presented here contributes both to our understanding of nucleon structure and the validation of key detector systems.
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BIO
Maria Satnik (she/they) was born and raised in Altoona, Wisconsin. While attending Altoona High School, Maria took mathematics courses at the University of Wisconsin–Eau Claire. After graduating high school as valedictorian in 2014, they went on to earn a B.S. in Physics from St. Norbert College in 2018, with minors in mathematics and computer science.

During their undergraduate years, Maria participated in SULI research internships at SLAC National Accelerator Laboratory and Jefferson Lab, which sparked her interest in particle and accelerator physics. In the summer of 2018, she began her Ph.D. research under the advisement of Dr. Todd Averett at William & Mary, in the Experimental Nuclear and Hadronic Physics group. Along the way, they earned an M.S. in Physics from William & Mary in 2020.

Maria’s research has focused on studying the internal structure of protons and neutrons through electron scattering experiments at Jefferson Lab. In recognition of their excellent work and leadership, she was awarded a Jefferson Science Associates Graduate Fellowship at Jefferson Lab. Following the completion of their Ph.D., Maria will begin a postdoctoral position in Nuclear Nonproliferation in the Intelligence and Space Research Division at Los Alamos National Laboratory.



Maria Satnik (she/they)
William & Mary
Physics PhD Candidate
Small Hall 220

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