Results 111 to 120 of about 16,257,561 (327)
Three-family particle physics models from global F-theory compactifications [PDF]
, 2015 A bstractWe construct four-dimensional, globally consistent F-theory models with three chiral generations, whose gauge group and matter representations coincide with those of the Minimal Supersymmetric Standard Model, the Pati-Salam Model and the ...
M. Cvetič +4 more
semanticscholar +1 more source
On Instanton Effects in F-theory
, 2010 We revisit the issue of M5-brane instanton corrections to the superpotential in F-theory compactifications on elliptically fibered Calabi-Yau fourfolds. Elaborating on concrete geometries, we compare the instanton zero modes for non-perturbative F-theory
A Collinucci +58 more
core +1 more source
A Quadrillion Standard Models from F-theory [PDF]
, 2019 We present an explicit construction of ${\cal O}(10^{15})$ globally consistent string compactifications that realize the exact chiral spectrum of the Standard Model of particle physics with gauge coupling unification in the context of F-theory. Utilizing
Cvetic, Mirjam +4 more
core +3 more sources
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
A perfectoid duality between M-theory and F-theory
Nuclear Physics BWe present a non-singular, definition-level formulation of F-theory by replacing the traditional shrinking-fiber limit of M-theory with compactification on a tower-completed circle described using perfectoid geometry and condensed mathematics.
Arshid Shabir +2 more
doaj +1 more source
General U(1)×U(1) F-theory compactifications and beyond: geometry of unHiggsings and novel matter structure [PDF]
, 2015 A bstractWe construct the general form of an F-theory compactification with two U(1) factors based on a general elliptically fibered Calabi-Yau manifold with Mordell-Weil group of rank two.
M. Cvetič +3 more
semanticscholar +1 more source
B^F Theory and Flat Spacetimes
, 1993 We propose a reduced constrained Hamiltonian formalism for the exactly soluble $B \wedge F$ theory of flat connections and closed two-forms over manifolds with topology $\Sigma^3 \times (0,1)$.
C. Misner +17 more
core +1 more source
Nuclear Physics B, 2010 59 pages, 8 tables; v2: typos corrected, discussion of gauge coupling unification and various minor comments added; v3: more typos ...
Blumenhagen, Ralph +3 more
openaire +5 more sources
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
Phenomenology with F-theory SU(5)
, 2017 We explore the low energy phenomenology of an F-theory based SU(5) model which, in addition to the known quarks and leptons, contains Standard Model singlets, and vector-like color triplets and SU(2) doublets.
Leontaris, George K., Shafi, Qaisar
core +2 more sources