Results 51 to 60 of about 219,853 (288)
MHV amplitudes and BCFW recursion for Yang-Mills theory in the de Sitter static patch
Journal of High Energy Physics, 2021 We study the scattering problem in the static patch of de Sitter space, i.e. the problem of field evolution between the past and future horizons of a de Sitter observer. We formulate the problem in terms of off-shell fields in Poincare coordinates.
Emil Albrychiewicz +2 more
doaj +1 more source
UV completion without symmetry restoration
, 2013 We show that it is not possible to UV-complete certain low-energy effective theories with spontaneously broken space-time symmetries by embedding them into linear sigma models, that is, by adding "radial" modes and restoring the broken symmetries.
Endlich, Solomon +2 more
core +1 more source
CPT theorem in a (5+1) Galilean space-time [PDF]
, 2007 We extend the 5-dimensional Galilean space-time to a (5+1) Galilean space-time in order to define a parity transformation in a covariant manner. This allows us to discuss the discrete symmetries in the Galilean space-time, which is embedded in the (5+1 ...
Balachandran +27 more
core +1 more source
, 2004 Bearing in mind BV quantization of gauge gravitation theory, we extend general covariant transformations to the BRST ones.
Bashkirov, D., Sardanashvily, G.
openaire +2 more sources
Space–time symmetry of noncommutative field theory [PDF]
Physics Letters B, 2005 7 pages, no figures, final version, accepted for publication in Phys.
Gonera, Cezary +3 more
openaire +2 more sources
Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity
Molecular Oncology, EarlyView.Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung +17 more
wiley +1 more source
Generalized unitary evolution for symplectic scalar fermions
Journal of High Energy PhysicsThe theory of symplectic scalar fermion of LeClair and Neubert is studied. The theory evades the conventional spin-statistics theorem because its Hamiltonian is pseudo Hermitian. The definition of pseudo Hermiticity is examined in the interacting and the
Cheng-Yang Lee
doaj +1 more source
Finite charges from the bulk action
Journal of High Energy Physics, 2023 Constructing charges in the covariant phase space formalism often leads to formally divergent expressions, even when the fields satisfy physically acceptable fall-off conditions.
Robert McNees, Céline Zwikel
doaj +1 more source
International Journal of Modern Physics D, 2016 The equations of Hamiltonian gravity are often considered ugly cousins of the elegant and manifestly covariant versions found in the Lagrangian theory. However, both formulations are fundamental in their own rights because they make different statements about the nature of spacetime and its symmetries.
openaire +2 more sources
Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source