Results 41 to 50 of about 96,106 (310)

T T ¯ $$ T\overline{T} $$ deformations in curved space from 4D Chern-Simons theory

open access: yesJournal of High Energy Physics, 2022
In this paper, we shed new light onto T T ¯ $$ T\overline{T} $$ -deformations by engineering them on 2D surface defects, supporting chiral and antichiral CFT’s, in a 4D Chern-Simons bulk. This approach is motivated by various connections between T T ¯ $$
Victor Py
doaj   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Effective field theories for muonic hydrogen

open access: yesEPJ Web of Conferences, 2017
Experimental measurements of muonic hydrogen bound states have recently started to take place and provide a powerful setting in which to study the properties of QCD.
Peset Clara
doaj   +1 more source

Emergent supersymmetry in local equilibrium systems

open access: yesJournal of High Energy Physics, 2018
Many physical processes we observe in nature involve variations of macroscopic quantities over spatial and temporal scales much larger than microscopic molecular collision scales and can be considered as in local thermal equilibrium.
Ping Gao, Hong Liu
doaj   +1 more source

Swampland constraints on 5d N $$ \mathcal{N} $$ = 1 supergravity

open access: yesJournal of High Energy Physics, 2020
We propose Swampland constraints on consistent 5-dimensional N $$ \mathcal{N} $$ = 1 supergravity theories. We focus on a special class of BPS magnetic monopole strings which arise in gravitational theories.
Sheldon Katz   +3 more
doaj   +1 more source

Superluminality in DHOST theory with extra scalar

open access: yesJournal of High Energy Physics, 2021
We consider DHOST Ia theory interacting gravitationally with an additional conventional scalar field minimally coupled to gravity. At the linearized level of perturbations about cosmological background, we find that in the presence of a slowly rolling ...
S. Mironov, V. Rubakov, V. Volkova
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

Complete CP-eigen bases of meson-baryon chiral lagrangian up to p 5-order

open access: yesJournal of High Energy Physics
Chiral perturbation theory describes the low energy dynamics of mesons and baryons in terms of the nonlinear Goldstone boson and fermion degrees of freedom. Through the Young tensor technique, we construct the on-shell operator bases for the meson-baryon
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
doaj   +1 more source

Introduction to Effective Field Theory [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 2007
Using examples from across the sub-disciplines of physics, this introduction shows why effective field theories are the language in which physical laws are written. The tools of effective field theory are demonstrated using worked examples from areas including particle, nuclear, atomic, condensed matter and gravitational physics.
openaire   +4 more sources

The effective action of double field theory [PDF]

open access: yesJournal of High Energy Physics, 2011
We perform a generalized Scherk-Schwarz dimensional reduction of Double Field Theory on a twisted double torus. The four dimensional effective action is shown to exactly reproduce the bosonic electric sector of gauged N = 4 supergravity. We present explicit expressions for the gaugings in terms of the twists, and analyze the associated string ...
Diego Marques   +4 more
openaire   +8 more sources

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