Results 41 to 50 of about 529,949 (323)

Fine tuning, sequestering, and the swampland

Physics Letters B, 2019
We conjecture and present evidence that any effective field theory coupled to gravity in flat space admits at most a finite number of fine tunings, depending on the amount of supersymmetry and spacetime dimension. In particular, this means that there are
Jonathan J. Heckman, Cumrun Vafa
doaj   +1 more source

Naturalness of scale-invariant NMSSMs with and without extra matter

, 2014
We present a comparative and systematic study of the fine tuning in Higgs sectors in three scale-invariant NMSSM models: the first being the standard $Z_3$-invariant NMSSM; the second is the NMSSM plus additional matter filling $3(5+\bar{5 ...
Binjonaid, Maien Y., King, Stephen F.
core   +1 more source

Tuning supersymmetric models at the LHC: A comparative analysis at two-loop level [PDF]

, 2012
We provide a comparative study of the fine tuning amount (Delta) at the two-loop leading log level in supersymmetric models commonly used in SUSY searches at the LHC. These are the constrained MSSM (CMSSM), non-universal Higgs masses models (NUHM1, NUHM2)
A Brignole, B Allanach, B Allanach, BC Allanach, D Feldman, D Horton, D. M. Ghilencea, G Aad, G Aad, G Aad, G Bélanger, G Bélanger, G Bélanger, G Degrassi, G Hinshaw, GG Ross, GL Kane, H. M. Lee, I Antoniadis, I Antoniadis, I Antoniadis, JO Berger, JR Ellis, M Cabrera, M Carena, M Carena, M Carena, M Davier, M. Park, ME Cabrera, MS Carena, O Buchmueller, P Bechtle, PH Chankowski, PH Chankowski, R Aaij, R Barate, R Barbieri, R Barbieri, R Barbieri, S Akula, S Akula, S Cassel, S Cassel, S Cassel, S Cassel, S Cassel, S Chatrchyan, S Chatrchyan, S Chatrchyan, S Chatrchyan, S Heinemeyer, S Schael, S Sekmen, SP Martin, SS AbdusSalam, T Sjöstrand   +56 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Advancing privacy-aware machine learning on sensitive data via edge-based continual µ-training for personalized large models

Machine Learning: Science and Technology
This paper introduces an innovative method for fine-tuning a large multi-label model for abnormality detection, utilizing a smaller trainer and advanced knowledge distillation techniques.
Zhaojing Huang, Leping Yu, Luis Fernando Herbozo Contreras, Kamran Eshraghian, Nhan Duy Truong, Armin Nikpour, Omid Kavehei   +6 more
doaj   +1 more source

Mechanisms for Producing Primordial Black Holes from Inflationary Models beyond Fine-Tuning

Universe
In this study, we present an analysis of the fine-tuning required in various inflationary models in order to explain the production of Primordial Black Holes (PBHs).
Ioanna Stamou
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Top Condensation without Fine-Tuning

, 1993
Quadratic divergencies which lead to the usual fine-tuning or hierarchy problem are discussed in top condensation models. As in the Standard Model a cancellation of quadratic divergencies is not possible without the boson contributions in the radiative ...
Andreas Blumhofer, Bardeen, Blumhofer, Bönisch, Decker, Ellwanger, Hasenfratz, Hill, Hooft, Lindner, Lindner, Nambu, Nambu, Nambu, Nilles, Veltman   +15 more
core   +1 more source

Large evolution of the bilinear Higgs coupling parameter in SUSY models and reduction of phase sensitivity [PDF]

, 2005
The phases in a generic low-energy supersymmetric model are severely constrained by the experimental upper bounds on the electric dipole moments of the electron and the neutron.
D. Chang, Debajyoti Choudhury, Debottam Das, E. Witten, J. Ellis, J. Wess, K. Inoue, M. Drees, N. Ohta, P. Nath, P. C. West, R. Arnowitt, T. Ibrahim, T. Ibrahim, T. Ibrahim, T. Ibrahim, Utpal Chattopadhyay   +16 more
core   +2 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source