Results 101 to 110 of about 16,257,561 (327)

USp(2k) Matrix Model: F Theory Connection [PDF]

, 1997
We present a zero dimensional matrix model based on $USp(2k)$ with supermultiplets in symmetric, antisymmetric and fundamental representations. The four dimensional compactification of this model naturally captures the exact results of Sen \cite{Sen} in $
Itoyama, H., Tokura, A.
core   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Discrete Wilson Lines in F-Theory

Advances in High Energy Physics, 2011
F-theory models are constructed where the 7 -brane has a nontrivial fundamental group. The base manifolds used are a toric Fano variety and a smooth toric threefold coming from a reflexive polyhedron.
Volker Braun
doaj   +1 more source

General F-theory models with tuned (SU(3) × SU(2) × U(1))/ℤ6 symmetry

Journal of High Energy Physics, 2020
We construct a general form for an F-theory Weierstrass model over a general base giving a 6D or 4D supergravity theory with gauge group (SU(3) × SU(2) × U(1))/ℤ6 and generic associated matter, which includes the matter content of the standard model. The
Nikhil Raghuram, Washington Taylor, Andrew P. Turner   +2 more
doaj   +1 more source

Frozen singularities in M and F theory

, 2016
A bstractWe revisit the duality between ALE singularities in M-theory and 7-branes on a circle in F-theory. We see that a frozen M-theory singularity maps to a circle compactification involving a rotation of the plane transverse to the 7-brane, showing ...
Y. Tachikawa
semanticscholar   +1 more source

Compactifications of F-theory on Calabi-Yau threefolds. (I) [PDF]

, 1996
We continue our study of compactifications of F-theory on Calabi-Yau threefolds. We gain more insight into F-theory duals of heterotic strings and provide a recipe for building F-theory duals for arbitrary heterotic compactifications on elliptically ...
D. Morrison, C. Vafa
semanticscholar   +1 more source

F-theory and the Witten Index

, 2011
We connect the fermionic fields, localized on the intersection curve $\Sigma$ of two D7-branes with zero background flux, to a N=2 supersymmetric quantum mechanics algebra, within the theoretical framework of F ...
Aldazabal, Alim, Andreas, Aspinwall, Beasley, Beasley, Belhaj, Belhaj, Bershadsky, Bershadsky, Billo, Blumenhagen, Blumenhagen, Bonora, Boya, Braun, Braun, Cecotti, Chen, Chen, Chen, Chen, Chiou, Choi, Choi, Choi, Choi, Choi, Chung, Chung, Clingher, Collinucci, Collinucci, Combescure, Cvetic, Denef, Diaconescu, Dolan, Donagi, Donagi, Donagi, Dudas, Dudas, Font, Font, Forste, Franco, Friedman, Grimm, Grimm, Grimm, Grimm, Grimm, Harvey, Hayashi, Hayashi, Hayashi, Heckman, Heckman, Heckman, Junker, King, Knapp, Kuflik, Leontaris, Leontaris, Li, Li, Li, Ludeling, Marchesano, Marsano, Marsano, Marsano, Marsano, Morrison, Morrison, Oikonomou, Pawelczyk, Pawelczyk, Tatar, V.K. Oikonomou, Vafa, Weigand, Wijnholt   +84 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Flat F-theory and friends

Journal of High Energy Physics
We discuss F-theory backgrounds associated to flat torus bundles over Ricci-flat manifolds. In this setting the F-theory background can be understood as a IIB orientifold with a large radius limit described by a supersymmetric compactification of IIB ...
Peng Cheng, Ilarion V. Melnikov, Ruben Minasian   +2 more
doaj   +1 more source

Charge completeness and the massless charge lattice in F-theory models of supergravity

Journal of High Energy Physics, 2021
We prove that, for every 6D supergravity theory that has an F-theory description, the property of charge completeness for the connected component of the gauge group (meaning that all charges in the corresponding charge lattice are realized by massive or ...
David R. Morrison, Washington Taylor
doaj   +1 more source