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Recent developments in HQET
Gil Paz
In this talk we review recent perturbative and non-perturbative developments in Heavy Quark Effective Theory (HQET).
Radiative Corrections: From Medium to High Energy Experiments
Andrei Afanasev, Jan C. Bernauer, Peter Blunden +16
Radiative corrections are crucial for modern high-precision physics experiments, and are an area of active research in the experimental and theoretical community. Here we provide a…
Oscillating nuclear charge radii as sensors for ultralight dark matter
Abhishek Banerjee, Dmitry Budker, Melina Filzinger +5
We show that coupling of ultralight dark matter (UDM) to quarks and gluons would lead to an oscillation of the nuclear charge radius for both the quantum chromodynamics (QCD) axion…
Theory of Inclusive B Decays
Gil Paz
In this talk I briefly review the current status of the theory of the inclusive decays: , , and $\bar B\to X…
Enhanced neutrino polarizability
Saurabh Bansal, Gil Paz, Alexey Petrov +2
We point out that neutrinos can have enhanced couplings to photons, if light (pseudo)scalar mediators are present, resulting in potentially measurable neutrino polarizability. We s…
Shining dark matter in Xenon1T
Gil Paz, Alexey A. Petrov, Michele Tammaro +1
We point out that a non-relativistic GeV dark matter (DM) which interacts with visible matter through higher dimensional Rayleigh operators could explain the excess of "e…
Challenges in Semileptonic B Decays
P. Gambino, A. S. Kronfeld, M. Rotondo +22
Two of the elements of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, and , are extracted from semileptonic B decays. The results of the B factories, analy…
Model Independent Extraction of the Proton Charge Radius from PRad data
Gil Paz
The proton radius puzzle has motivated several new experiments that aim to extract the proton charge radius and resolve the puzzle. Recently PRad, a new electron-proton scattering…
The Proton Radius Puzzle
Gil Paz
In 2010 the proton charge radius was extracted for the first time from muonic hydrogen, a bound state of a muon and a proton. The value obtained was five standard deviations away f…
Reevaluating Uncertainties in Decay
Ayesh Gunawardana, Gil Paz
The rare decay is an important probe of physics beyond the standard model. The largest uncertainty on the total rate and the CP asymmetry arises from resolved phot…
Elements of QED-NRQED Effective Field Theory: II. Matching of Contact Interactions
Steven P. Dye, Matthew Gonderinger, Gil Paz
In 2010 the first extraction of the proton charge radius from muonic hydrogen was found be be five standard deviations away form the regular hydrogen value. Eight years later, this…
Reply to Comment [arXiv:1708.09341] by Birse and McGovern on "Nucleon spin-averaged forward virtual Compton tensor at large "
Richard J. Hill, Gil Paz
We reply to misleading claims made in a comment to our work by Birse and McGovern in arXiv:1708.09341.
Remarks on the Z' Drell-Yan cross section
Gil Paz, Joydeep Roy
Many extension of the standard model contain an extra U(1)' gauge group with a heavy Z' gauge boson. Perhaps the most clear signal for such a Z' would be a resonance in the invaria…
Theory of radiative B decays
Gil Paz
This talk discusses the theory of inclusive and exclusive radiative B decays, emphasizing the interplay of perturbative and non-perturbative effects and the importance CP and isosp…
Higher dimensional HQET parameters
Gil Paz
Effective field theories such as Heavy Quark Effective Theory (HQET) are indispensable tools in controlling the effects of the strong interaction. The increasing experimental preci…
On HQET and NRQCD Operators of Dimension 8 and Above
Ayesh Gunawardana, Gil Paz
Effective field theories such as Heavy Quark Effective Theory (HQET) and Non Relativistic Quantum Chromo-(Electro-) dynamics NRQCD (NRQED) are indispensable tools in controlling th…
Nucleon spin-averaged forward virtual Compton tensor at large
Richard J. Hill, Gil Paz
The nucleon spin-averaged forward virtual Compton tensor determines important physical quantities such as electromagnetically-induced mass differences of nucleons, and two-photon e…
Elements of QED-NRQED Effective Field Theory: I. NLO scattering at leading power
Steven P. Dye, Matthew Gonderinger, Gil Paz
The proton radius puzzle, i.e. the large discrepancy in the extraction of the proton charge radius between regular and muonic hydrogen, challenges our understanding of the structur…
Model Independent Analysis of the Proton Magnetic Radius
Joydeep Roy, Zachary Epstein, Gil Paz
The proton is a fundamental constituent of matter. It is an extended object with finite size that can be inferred with some degree of accuracy from several measurements. Using cons…
Model-independent determination of the axial mass parameter in quasielastic antineutrino-nucleon scattering
Bhubanjyoti Bhattacharya, Gil Paz, Anthony J. Tropiano
Understanding the charged current quasielestic (CCQE) neutrino-nucleus interaction is important for precision studies of neutrino oscillations. The theoretical description of the i…
An Introduction to NRQED
Gil Paz
We present a pedagogical introduction to NRQED (non-relativistic quantum electrodynamics). NRQED is an effective field theory that describes the interaction of non-relativistic, po…
Model independent extraction of the proton magnetic radius from electron scattering
Zachary Epstein, Gil Paz, Joydeep Roy
We combine constraints from analyticity with experimental electron-proton scattering data to determine the proton magnetic radius without model-dependent assumptions on the shape o…
Theory of Inclusive Radiative B Decays: 2012 Update
Gil Paz
This talk discusses recent developments in the theory of inclusive radiative B decays, focusing mainly on non-perturbative aspects of the CP asymmetry in B->Xs gamma.
The NRQED lagrangian at order 1/M^4
Richard J. Hill, Gabriel Lee, Gil Paz +1
The parity and time-reversal invariant effective lagrangian for a heavy fermion interacting with an abelian gauge field, i.e., NRQED, is constructed through order . The impl…