Results 41 to 50 of about 101,525 (149)

Probing Late Neutrino Mass Properties with Supernova Neutrinos [PDF]

, 2006
Models of late-time neutrino mass generation contain new interactions of the cosmic background neutrinos with supernova relic neutrinos (SRNs) through exchange of the on-shell light boson, leading to significant modification of the differential SRN flux ...
Gilad Perez, Haim Goldberg, Ina Sarcevic, Joseph Baker, P. Ramond   +4 more
core   +3 more sources

Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity

Annalen der Physik, EarlyView.
This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley   +1 more source

Dynamics and Conformational Stability of Chiral Bay‐Phenolate‐Substituted Twisted Octaazaperopyrenedioxides (OAPPDOs)

Chemistry – A European Journal, EarlyView.
Chiral octaazaperopyrenedioxide (OAPPDO) fluorophores were obtained by functionalizing with BINOL and related fragments bridging the bay position. They possess conformational flexibility but remarkable thermal stability with respect to racemization of the central chromophore, which allowed the study of their chiroptical properties, including circular ...
Bastian Rojas‐Deij, Lars Schneider, Tim Bruckhoff, Robert Eichelmann, Philipp Rohrmann, Raphael Candalh, Joachim Ballmann, Felix Deschler, Lutz H. Gade   +8 more
wiley   +1 more source

Neutrinos from type Ia supernovae: the deflagration-to-detonation transition scenario

, 2016
It has long been recognized that the neutrinos detected from the next core-collapse supernova in the Galaxy have the potential to reveal important information about the dynamics of the explosion and the nucleosynthesis conditions as well as allowing us ...
Kneller, James P., Nagaraj, Gautam, Scholberg, Kate, Seitenzahl, Ivo R., Wright, Warren P.   +4 more
core   +1 more source

SNOC: A Monte-Carlo simulation package for high-z supernova observations [PDF]

, 2002
We present a Monte-Carlo package for simulation of high-redshift supernova data, SNOC. Optical and near-infrared photons from supernovae are ray-traced over cosmological distances from the simulated host galaxy to the observer at Earth.
A. Goobar, E. Mörtsell, R. Amanullah, M. Goliath, Lars Bergström, Tomas Dahlen   +5 more
semanticscholar   +1 more source

The Diffuse Supernova Neutrino Background

, 2010
The Diffuse Supernova Neutrino Background (DSNB) is the weak glow of MeV neutrinos and antineutrinos from distant core-collapse supernovae. The DSNB has not been detected yet, but the Super-Kamiokande (SK) 2003 upper limit on the electron antineutrino ...
Beacom, John F.
core   +1 more source

Distributions of Long-Lived Radioactive Nuclei Provided by Star Forming Environments [PDF]

, 2015
Radioactive nuclei play an important role in planetary evolution by providing an internal heat source, which affects planetary structure and helps facilitate plate tectonics.
Adams, F. C., Fatuzzo, M.
core   +3 more sources

Exploring the Radiation Damage of Vacancy‐Ordered Double Perovskites, ((NH4)(1−x)FAx)2SnBr6

ChemPhysChem, EarlyView.
Incident X‐ray photons hν on a newly reported vacancy‐ordered double perovskite FA2SnBr6 results in damage of the compound. This is seen over increasing X‐ray dose using X‐ray photoelectron spectroscopy. Degradation studies of the ASnX3 perovskites to the A2SnX6 vacancy‐ordered double perovskite form have been well researched, but little is known about
Prajna Bhatt, Theo Stucky de Quay, Yuhan Liu, Tim Evans, Orfhlaith McCullough, Nathalie K. Fernando, Curran Kalha, Robert G. Palgrave, Anna Regoutz   +8 more
wiley   +1 more source

Probing the neutrino mass hierarchy and the 13-mixing with supernovae [PDF]

, 2003
We consider in details the effects of the 13-mixing (sin^2 theta_{13}) and of the type of mass hierarchy/ordering (sign[ Delta m^2_{13}]) on neutrino signals from the gravitational collapses of stars.
Akhmedov E K, Alexei Yu Smirnov, Arneodo F (ICARUS collaboration), Bahcall J N, Barbieri R, Barger V, Barger V, Beacom J F, Beacom J F, Boehm F, Cecilia Lunardini, Clayton D D, Cline D B, de Holanda P C, Dighe A S, Dutta G, Dutta G, Dzewonski A M, Fogli G L, Friedland A, Janka H T, Janka H T, Jegerlehner B, Jung C K, Kachelriess M, Kachelriess M, Keil M T, Kuo T K, Kuo T K, Lunardini C, Lunardini C, Mikheev S P, Minakata H, Nunokawa H, Raffelt G G, Schirato R C, Shiozawa M, Strumia A, Super-Kamiokande Collaboration, Takahashi K, Takahashi K, TITAND Working Group Collaboration, Vagins M, Vogel P, Waltham C   +44 more
core   +3 more sources

N‐Geranylated Amino Acid Surfactants with Low Critical Micelle Concentrations from Abundant, Naturally Derived Starting Materials

ChemistryOpen, EarlyView.
Cleaning Up Surfactants: Realising critical micelle concentrations lower than sodium dodecyl sulfate with sustainable surfactants prepared from amino acids and naturally occurring aldehydes. In this work, a simple method for the preparation of N‐alkylated amino acid surfactants in 1–2 steps is reported.
Brett L. Pollard, Yumeng Liu, Michael G. Gardiner, Luke A. Connal   +3 more
wiley   +1 more source