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We show that promoting the trace part of the Einstein equations to a trivial identity results in the Newton constant being an integration constant. Thus, in this formulation the Newton constant is a global dynamical degree of freedom which…

General Relativity and Quantum Cosmology · Physics 2021-04-16 Pavel Jiroušek , Keigo Shimada , Alexander Vikman , Masahide Yamaguchi

The structure of the matrix elements of the energy-momentum tensor play an important role in determining the properties of the form factors $A(q^{2})$, $B(q^{2})$ and $C(q^{2})$ which appear in the Lorentz covariant decomposition of the…

High Energy Physics - Theory · Physics 2017-09-27 Peter Lowdon , Kelly Yu-Ju Chiu , Stanley J. Brodsky

Arkani-Hamed and Schmaltz (AS) have shown that proton stability need not originate from symmetries in a high energy theory. Instead the proton decay rate is suppressed if quarks and leptons are spatially separated in a compact extra…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Coulthurst , K. L. McDonald , B. H. J. McKellar

Lord Kelvin believed that the electromagnetic aether must also generate gravity. Presently, we have no methods to determine the density of the electromagnetic aether, or we say the $\Omega(1)$ substratum. Thus, we also suppose that vacuum…

General Physics · Physics 2022-09-22 Xiao-Song Wang

A method for quantization of the proton mass is here addressed, which provides a plausible explanation for the origin of mass and leads to the unification of mass and electric charge through their coupling. By means of an electromagnetic…

General Physics · Physics 2007-05-23 G. Sardin

In this thesis a general relativistic framework for the calculation of the electroweak structure of mesons of arbitrary constituent-quark masses is presented. The physical processes in which the structure is measured, i.e. electron-meson…

High Energy Physics - Phenomenology · Physics 2013-06-07 María Gómez-Rocha

Visible matter is characterised by a single mass scale; namely, the proton mass. The proton's existence and structure are supposed to be described by quantum chromodynamics (QCD); yet, absent Higgs boson couplings, chromodynamics is scale…

High Energy Physics - Phenomenology · Physics 2023-01-16 Minghui Ding , Craig D. Roberts , Sebastian M. Schmidt

We review lattice results related to pion, kaon, $D$-meson, $B$-meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communities. More specifically, we report on the determination of…

The extraction of the magnetic form factor of the nucleon at zero momentum transfer is usually performed by adopting a parametrization for its momentum dependence and fitting the results obtained at finite momenta. We present a position…

High Energy Physics - Lattice · Physics 2016-11-08 Constantia Alexandrou , Martha Constantinou , Giannis Koutsou , Konstantin Ottnad , Marcus Petschlies

An additional variation of the Einstein-Hilbert action with respect to the Planck mass provides a constraint on the average Ricci scalar that prevents vacuum energy from gravitating. Consideration of the evolution of the inhomogeneous…

General Relativity and Quantum Cosmology · Physics 2019-09-18 Lucas Lombriser

In the QCD energy-momentum tensor $T^{\mu\nu}$, the terms that contribute to physical matrix elements are expressed as the sum of the gauge-invariant quark part and gluon part. Each part undergoes the renormalization due to the interactions…

High Energy Physics - Phenomenology · Physics 2019-02-20 Kazuhiro Tanaka

If Mach's Principle explains the Newtonian inertial reaction to acceleration then the role of the 'fixed stars' should also be manifest through Hamilton's formulation of mechanics. This consistency may be achieved if the expression for…

Astrophysics · Physics 2007-05-23 Scott Funkhouser

The proton is one of the main building blocks of all visible matter in the universe. Among its intrinsic properties are its electric charge, mass, and spin. These emerge from the complex dynamics of its fundamental constituents, quarks and…

Obtaining the rest mass of leptons with electric charge minus 1 is pursued by considering the existence of a medium made up of sub-quantum particles, called etherons, having a rest energy at the lowest limit which is possible in the…

General Physics · Physics 2009-08-14 Ioan-Iovitz Popescu , Rudolf Emil Nistor

The proton's internal structure is characterized not only by its charge and magnetic distribution but also by its mechanical and mass properties, which are encoded in the energy-momentum tensor (EMT) of quantum chromodynamics (QCD). These…

High Energy Physics - Phenomenology · Physics 2025-07-04 The MMGPDs Collaboration , Muhammad Goharipour , Hadi Hashamipour , H. Fatehi , Fatemeh Irani , K. Azizi , S. V. Goloskokov

We investigate the phenomenology of a model in which the proton is rendered absolutely stable by an IR mechanism that remains robust against unknown quantum gravity effects. A linear combination of baryon number and lepton flavors is gauged…

High Energy Physics - Phenomenology · Physics 2025-11-18 Admir Greljo , Xavier Ponce Díaz , Anders Eller Thomsen

We have determined theoretically the rest mass of the muon neutrino at 50 milli-eV and the rest mass of the electron neutrino at 5 meV, as well as, to 1% accuracy, the ratio of the masses of the stable elementary particles which decay by…

High Energy Physics - Lattice · Physics 2007-05-23 E. L. Koschmieder , T. H. Koschmieder

Our previous calculations of the sea- and valence-quark mass dependence of the pseudoscalar meson masses and decay constants is repeated on a 16^3x32 lattice which allows for a better determination of the quantities in question. The…

High Energy Physics - Lattice · Physics 2009-11-10 F. Farchioni , I. Montvay , E. Scholz

We report a complete calculation of the quark and glue momenta and angular momenta in the proton. These include the quark contributions from both the connected and disconnected insertions. The quark disconnected insertion loops are computed…

High Energy Physics - Lattice · Physics 2015-02-13 M. Deka , T. Doi , Y. B. Yang , B. Chakraborty , S. J. Dong , T. Draper , M. Glatzmaier , M. Gong , H. W. Lin , K. F. Liu , D. Mankame , N. Mathur , T. Streuer

We determine the masses, the singlet and octet decay constants as well as the anomalous matrix elements of the $\eta$ and $\eta^\prime$ mesons in $N_f=2+1$ QCD\@. The results are obtained using twenty-one CLS ensembles of non-perturbatively…

High Energy Physics - Lattice · Physics 2021-08-27 Gunnar S. Bali , Vladimir Braun , Sara Collins , Andreas Schäfer , Jakob Simeth
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