Results 41 to 50 of about 210,813 (335)

Flavor changing nucleon decay

Physics Letters B, 2017
Recent discovery of neutrino large mixings implies the large mixings in the diagonalizing matrices of 5¯ fields in SU(5) grand unified theory (GUT), while the diagonalizing matrices of 10 fields of SU(5) are expected to have small mixings like Cabibbo ...
Nobuhiro Maekawa, Yu Muramatsu
doaj   +1 more source

Non-Anomalous Discrete R-symmetry Decrees Three Generations

, 2012
We show that more than two generations of quarks and leptons are required to have an anomaly free discrete R-symmetry larger than R-parity, provided that the supersymmetric Standard Model can be minimally embedded into a grand unified theory.
Evans, Jason L., Ibe, Masahiro, Kehayias, John, Yanagida, Tsutomu T.   +3 more
core   +1 more source

Lepton flavor violation at linear collider experiments in supersymmetric grand unified theories [PDF]

, 1997
Lepton flavor violation at linear collider experiments is discussed. We show that detectable lepton flavor violation could occur through scalar lepton pair production and decay in the supersymmetric SU(5) grand unified theory in spite of the stringent ...
F. Cuypers, H. P. Nilles, J. Ellis, J. Hisano, J. Hisano, J. Hisano, K. W. Edwards, L. J. Hall, M. M. Nojiri, Masahide Hirouchi, Minoru Tanaka, N. Arkani-Hamed, N. Arkani-Hamed, N. V. Krasnikov, N. V. Krasnikov, N. V. Krasnikov, R. Barbieri, R. Barbieri, R. D. Bolton, R. M. Barnett   +19 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Phenomenology of GUT-inspired gauge-Higgs unification

Physics Letters B, 2020
We perform a detailed investigation of a Grand Unified Theory (GUT)-inspired theory of gauge-Higgs unification. Scanning the model's parameter space with adapted numerical techniques, we contrast the scenario's low energy limit with existing SM and ...
Christoph Englert, David J. Miller, Dumitru Dan Smaranda   +2 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

The QCD axion and unification

Journal of High Energy Physics, 2019
The QCD axion is one of the most appealing candidates for the dark matter in the Universe. In this article, we discuss the possibility to predict the axion mass in the context of a simple renormalizable grand unified theory where the Peccei-Quinn scale ...
Pavel Fileviez Pérez, Clara Murgui, Alexis D. Plascencia   +2 more
doaj   +1 more source

The Weinberg angle and 5D RGE effects in a SO(11) GUT theory

Physics Letters B, 2020
The Weinberg angle is an important parameter in Grand Unified Theories (GUT) as its size is crucially influenced by the assumption of unification. In scenarios with different steps of symmetry breaking, in particular in models that involve gauge-Higgs ...
Christoph Englert, David J. Miller, Dumitru Dan Smaranda   +2 more
doaj   +1 more source

Asymmetric Orbifolds and Grand Unification

, 1996
We generalize the rules for the free fermionic string construction to include other asymmetric orbifolds with world-sheet bosons. We use these rules to construct various grand unified string models that involve level-3 current algebras.
A. E. Faraggi, A. E. Faraggi, A. Font, A. Font, A. H. Chamseddine, A. Maslikov, A. Maslikov, B. R. Greene, C. Vafa, D. Bailin, D. C. Lewellen, D. Finnell, G. Aldazabal, G. B. Cleaver, G. K. Leontaris, H. Kawai, H. Kawai, H. Kawai, H. Kawai, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, J. A. Schwartz, J. Erler, J. Lopez, J. Lopez, J. Lopez, K. R. Dienes, K. S. Narain, K. S. Narain, K. S. Narain, K. S. Narain, L. E. Ibánez, L. E. Ibánez, L. E. Ibánez, L. E. Ibánez, L. J. Dixon, L. J. Dixon, L. J. Dixon, R. Arnowitt, S. -H. Henry Tye, S. Chaudhuri, S. Hamidi, S. Kachru, Z. Kakushadze, Z. Kakushadze, Zurab Kakushadze   +48 more
core   +2 more sources

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Dentz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source