Presentations including research supported by the NTNP Topical Collaboration given at conferences, seminars and colloquium, in reverse chronological order based upon date.

Seminar, University of Cape Town, South Africa, 24-05,12, slides

arXiv:

11th International Workshop on Chiral Dynamics [CD2024], 24-08-30, slides

arXiv:

I will describe our recent effort on the precise calculation of the radiative correction to semileptonic kaon decays that leads to an improved determination of the CKM matrix element Vus and further sharpens the so-called "Cabibbo angle anomaly".

The 11th International Workshop on Chiral Dynamics, 24-08-27, slides

arXiv:

Colloquium, Cyclotron Institute, Texas A&M Univeristy, 24-08-24, slides

arXiv:

Workshop at ECT*: the nuclear interaction: post-modern developments, 24-08-23, slides

arXiv:

NN2024, 24-08-21, slides

arXiv:

The anomalies in the electron-positron angular correlations from high-energy decays of 8Be were interpreted by the ATOMKI collaboration as evidence of a new beyond-the-Standard Model boson. A theoretical understanding of the nuclear physics involved is an important step towards verification of this claim. Hence, we investigate proton capture with the ab initio no-core shell model with continuum (NCSMC). The NCSMC describes both bound and unbound states in nuclei in a unified way, with realistic two- and three-nucleon interactions as the only input. This allows simultaneous description of 8Be structure, p+7Li scattering, radiative capture and internal pair creation which can individually be benchmarked against available data. We compare pair correlations to ATOMKI data for different proton energies and examine the effect of proper treatment of the initial scattering state. Further, our technique will be applied to the 12C and 4He systems in which similar anomalies have been reported.

SNP CNP SS 2024, 8/3/2024, slides

arXiv:

Seminar, Paul Scherrer Institute (Switzerland), 24-08-02, slides

arXiv:

Latt2024, 24-08-01, slides

arXiv:

Symposium Celebrating 75 years of The Shell Model and Maria Goeppert-Mayer, 2024-07-18, slides

arXiv:

Lattice 2024 @ CERN , 24-07-16, slides

arXiv:

Hall A/C Summer Collaboration Meeting at JLab, 24-07-15, slides

arXiv:

10th International Conference on Quarks and Nuclear Physics, 24-07-08, slides

arXiv:

Workshop on Software Infrastructure for Advanced Nuclear Physics Computing (SANPC), Cebaf Center, JLab, 24-06-20, slides

arXiv:

Latin American Symposium on Nuclear Physics and Applications XIV, 24-06-17, slides

arXiv:

Neutrino Oscillation Workshop 2024, 24-06-09, slides

arXiv:

Seminar University of Pisa, 24-06-06, slides

arXiv:

NTNP Collaboration meeting, 24-05-17, slides

arXiv:

NTNP Collaboration Meeting, 24-05-16, slides

arXiv:

NTNP collaboration meeting, 24-05-15, slides

arXiv:2405.18464

Seminar, Lawrence Livermore National Laboratory, 24-05-01, slides

arXiv:

The free neutron decay offers a powerful method to test the Standard Model and search for new physics; for example, the neutron lifetime and decay correlations provide essential inputs for the precise extraction of the CKM matrix element Vud and for the search of exotic currents in charged weak interactions. Carefully comparing the experimental outcomes of different decay correlations even allows us to go beyond the effective field theory description of new physics and probe light degrees of freedom. In this talk I will briefly review the few anomalies we observed in neutron decay experiments and describe several recent improvements in theory for a better analysis of the experimental results.

Seminar, University of Bonn, 24-04-29, slides

arXiv:

Nuclear Theory Seminar, Lawrence Livermore National Laboratory, 24-04-24, slides

arXiv:

Colloquium, Triangle Nuclear Theory (Duke University), 24-04-23, slides

arXiv:

NuInt 2024 - 14th International Workshop on Neutrino-Nucleus Interactions, 24-04-17, slides

arXiv:

[DIS2024], 24-04-12, slides

arXiv:

Colloquium [NCSU - Phys Dept], 24-04-09, slides

arXiv:

2024 APS April Meeting, 24-04-05, slides

arXiv:

2024 APS April Meeting, 24-04-03, slides

arXiv:

The 2nd Short-Baseline Experiment-Theory Workshop, 24-04-03, slides

arXiv:

INT seminar for "Fundamental Physics with Radioactive Molecules", 24-03-26, slides

arXiv:

See slides at address above

INT Program 24-1: "Fundamental Physics with Radioactive Molecules", 24-03-20, slides

arXiv:

Seminar, Los Alamos National Laboratory, 24-03-19, slides

arXiv:

Compelling evidence suggests that the Standard Model falls short as a complete theory. Recent experiments have unveiled intriguing deviations from the Standard Model, underscoring the pivotal role of the nuclear precision frontier in our pursuit of physics beyond the Standard Model (BSM). This frontier is centered on meticulously measuring nuclear phenomena, thus demanding advanced theoretical predictions. This presentation will spotlight three BSM searches from three distinct physics sub-fields, all of which can be effectively tackled through nuclear experiments. In Astronomy, we will explore dark matter direct detection with nuclear detectors. In particle physics, we will delve into the quest for charged lepton flavor violation via muon-to-electron conversion. Lastly, in nuclear physics, we will investigate exotic nuclear weak interactions, utilizing beta-decays. For each inquiry, I will elucidate the open question and its origins, demonstrate how it can be approached through low-energy nuclei experiments, highlight key theoretical gaps essential for interpreting these experiments, and present cutting-edge theory developments to address these gaps. Additionally, for the latter search, I will showcase recent discoveries stemming from new measurements and theory, illustrate how novel theoretical frameworks lead to innovative measurement techniques, and present preliminary calculations for upcoming state-of-the-art experiments.

UCLA Physics Department Colloquium, 24-03-07, slides

arXiv:

PAINT2024, 24-02-29, slides

arXiv:

In this talk I will review the status of the extraction of the Standard Model parameter Vud from nuclear beta decays, which provides a powerful tool to search for new physics. Particular emphasis is put on the recent developments of the weak decay form factors, electroweak radiative corrections, and the isospin-symmetry-breaking correction to the Fermi matrix element. I will show how lattice QCD, nuclear ab-initio theory and experiments pave the way for the extraction of Vud at a 0.01% precision.

PAINT2024: TRIUMF Workshop on Progress in Ab Initio Nuclear Theory, 24-02-29, slides

arXiv:

PAINT2024 Workshop on Progress in Ab Initio Nuclear Theory, TRIUMF, Vancouver, Canada, 24-02-28, slides

arXiv:

PAINT2024 - Workshop on Progress in Ab Initio Nuclear Theory, 24-02-27, slides

arXiv:

Joint MSU Physics and Astronomy Colloquium/FRIB Seminar, 24-02-07, slides

arXiv:

Colloquium, University of Tennessee at Knoxville, 02/04/24, slides

arXiv:

Seminar, University of Notre Dame, 24-01-29, slides

arXiv:

The precise determination of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements Vud and Vus constitutes an important component of the precision test of the Standard Model (SM) and the search for new physics beyond its coverage. In recent years, there has been a resurgence of interest in these matrix elements due to the emergence of a number of intriguing tensions at the 3-sigma level. In this talk I will discuss our current theoretical understanding of the superallowed nuclear beta decay, which is the main avenue for the Vud extraction.

60th International Winter Meeting on Nuclear Physics, Bormio, Italy, 24-01-24, slides

arXiv:

Leverhulme Workshop on Designer Nuclei and Molecules for the Study of Fundamental Laws of the Universe, 24-01-14, slides

arXiv:

Cabibbo 60: The Cabibbo Angle 60 Years Later , 23-12-04, slides

arXiv:

Seminar, Facility for Rare Isotope Beams, 23-12-04, slides

arXiv:

Seminar, Argonne National Laboratory, 2023-12-04, slides

arXiv:

The precise determination of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements Vud and Vus constitutes an important component of the precision test of Standard Model (SM) and the search for new physics beyond its coverage. In recent years, there has been a resurgence of interest in these matrix elements due to the emergence of a number of intriguing tensions at the 3\(\sigma\) level, which makes them a highlighted research topic in the 2023 NSAC Long Range Plan. In this talk I will review the current status of these matrix elements and provide an outlook.

2023 Fall Meeting of APS DNP and JPS, 23-11-30, slides

arXiv:

We compare a new MINERvA measurement of the nucleon axial-vector form factor with lattice-QCD calculations and deuterium bubble-chamber data, provide uncertainty projections for future extractions, and present recent calculations of radiative corrections to charged-current (anti)neutrino-nucleon scattering.

2023 Fall Meeting of APS DNP and JPS, 23-11-30, slides

arXiv:

At leading order in weak and electromagnetic couplings, cross sections for (anti)neutrino-nucleon elastic scattering are determined by vector and axial-vector form factors. Radiative corrections in the Standard Model, and potential new physics contributions beyond the Standard Model, generate additional operators with corresponding invariant amplitudes. We provide the definition of these amplitudes and study constraints from existing experimental data. We explore the impact of modern and future cross-section measurements, considering both unpolarized and polarized observables, on constraining these amplitudes and discuss the effects of radiative corrections on the observables of interest.

2023 Fall Meeting of APS DNP and JPS, 23-11-29, slides

arXiv:

We develop a new top-down effective field theory approach for radiative corrections to the neutron decay. First, we match the Standard Model to the four-fermion effective field theory. To evaluate radiative corrections at scales of the neutron decay, we perform matching to the heavy-baryon chiral perturbation theory. For the vector coupling constant, we find an agreement with the traditional current-algebra approach at the one-loop level, improve on the resummation of next-to-leading logarithms, and provide an updated extraction of the Vud matrix element.

2023 Fall Meeting of APS DNP and JPS, 23-11-27, slides

arXiv:

Conference [15th European Research Conference on “Electromagnetic Interactions with Nucleons and Nuclei (EINN)”], 23-11-05, slides

arXiv:

INT WORKSHOP INT-23-86W, 23-10-31, slides

arXiv:

Critical stability of few-body quantum systems, 23-10-27, slides

arXiv:

Seminar, University of Virginia, 10/11/23, slides

arXiv:

[SPIN2023], 23-09-25, slides

arXiv:

International Symposium on Solar Neutrino Physics at LNGS, 23-09-12, slides

arXiv:

[EuroPLEx Final Conference], 23-09-12, slides

arXiv:

Lepton Interactions with Nucleons and Nuclei, 23-09-06, slides

arXiv:

Marciana 2023- Lepton Interactions with Nucleons and Nuclei, 23-09-05, slides

arXiv:

Marciana 2023- Lepton Interactions with Nucleons and Nuclei, 23-09-05, slides

arXiv:

Lepton Interactions with Nucleons and Nuclei (LINN23), 09/05/23, slides

arXiv:

Seminar, Atominstitut, TU-Wien, 23-09-01, slides

arXiv:

In this talk I will review the status of the Standard Model theory of neutron beta decay. Particular emphasis is put on the recent developments of the `inner'' and`

outer'' electroweak radiative corrections, and the isospin-symmetry-breaking correction to the Fermi matrix element. The use of dispersion relation, lattice Quantum Chromodynamics and effective field theory framework allows for high-precision theory calculations at the level of \(10^{-4}\), turning neutron beta decay into a powerful tool to search for new physics. I offer an outlook to the future improvements.

Lattice QCD and Probes of New Physics, 23-08-11, slides

arXiv:

34th IUPAP Conference on Computational Physics (CCP2023), 08/07/23, slides

arXiv:

Conference [2023 MAYORANA (Multi-Aspect Young ORiented Advanced Neutrino Academy) Workshop], 23-07-13, slides

arXiv:

Multi-Aspect Young ORiented Advanced Neutrino Academy, 23-07-11, slides

arXiv:

MITP workshop on Neutrino Scattering at Low and Intermediate Energies, 23-06-30, slides

arXiv:

MITP Topical Workshop on Neutrino Scattering at Low and Intermediate Energies, 23-06-28, slides

arXiv:

Fourth International Conference on Charged Lepton Flavor Violation (Heidelberg), 23-06-20, slides

arXiv:

[Seminar, CERN], 23-06-13, slides

arXiv:

FRIB-TA Topical Program: Theoretical Justifications and Motivations for Early High-Profile FRIB Experiments, 23-05-24, slides

arXiv:

FRIB-TA Topical Program: Theoretical Justifications and Motivations for Early High-Profile FRIB Experiments , 23-05-22, slides

arXiv:

The Mitchell Conference on Collider, Dark Matter, and Neutrino Physics 2023, 23-05-19, slides

arXiv:

We study radiative corrections to the neutron beta decay within the top-down effective field theory approach. First, we match the Standard Model to the four-fermion effective field theory specifying the scheme dependence of the Wilson coefficients. To evaluate radiative corrections at scales of the neutron decay, we perform matching to the heavy-baryon chiral perturbation theory for the vector coupling constant. We find an agreement with traditional current-algebra approach at one-loop level and perform detailed evaluation in renormalization-group-improved perturbation theory.

[INT PROGRAM INT-23-1B New physics searches at the precision frontier], 23-05-16, slides

arXiv:

INT Program 23-1b: "New physics searches at the precision frontier", 23-05-12, slides

arXiv:

INT Program New Physics Searches at the Precision Frontier, 23-05-10, slides

arXiv:

New physics searches at the precision frontier, 23-05-09, slides

arXiv:

INT program 23-1b, 23-05-05, slides

arXiv:

Seminar, Triangle Universities Nuclear Laboratory, 05/04/23, slides

arXiv:

INT Program 23-1b, 23-05-01, slides

arXiv:

Interplay of Nuclear, Neutrino and BSM Physics at Low-Energies, 23-04-19, slides

arXiv:

APS April Meeting 2023, 23-04-16, slides

arXiv:

APS GPMFC Workshop 2023, 23-04-14, slides

arXiv:

APS Topical Group on Precision Measurement and Fundamental Constants - Precision Measurements in the US Long-Range Plan for Nuclear Physics, 23-04-14, slides

arXiv:

[Colloquium, Trinity College - Dublin], 23-04-12, slides

arXiv:

INT Workshop 21r-1c: "Tensor Networks in Many-Body and Quantum Field Theory", 23-04-05, slides

arXiv:

INT Program: Accessing and Understanding the QCD Spectra , 03/22/23, slides

arXiv:

[The Gradient Flow in QCD and other Strongly Coupled Field Theories], 23-03-20, slides

arXiv:

TRIUMF Workshop on Progress in Ab Initio Nuclear Theory (PAINT) 2023, 23-03-01, slides

arXiv:

Seminar, CERN Theory Group, 02/28/23, slides

arXiv:

INT Program 23-1a: "Intersections of Nuclear Structure and High-Energy Nuclear Collisions", 23-02-13, slides

arXiv:

KEK Flavor Factories workshop (KEK-FF 2023), 23-02-10, slides

arXiv:

EMMI Workshop and International Workshop XLIX on Gross Properties of Nuclei and Nuclear Excitations, 23-01-16, slides

arXiv:

49th International Workshop on Gross Properties of Nuclei and Nuclear Excitations: "Effective Field Theory for Nuclei and Nuclear Matter", 23-01-16, slides

arXiv:

Workshop on Hidden Neutrinos, 03-06-19, slides

arXiv: