Results 101 to 110 of about 2,076,031 (258)

Search for the semi-muonic charmonium decay J/ψ → D − μ + ν μ + c.c.

open access: yesJournal of High Energy Physics
Using (10087 ± 44) × 106 J/ψ events collected with the BESIII detector at the BEPCII e + e − storage ring at the center-of-mass energy of s $$ \sqrt{s} $$ = 3.097 GeV, we present a search for the rare semi-muonic charmonium decay J/ψ → D − μ + ν μ + c.c..
The BESIII collaboration   +627 more
doaj   +1 more source

Rare top decay

open access: yes, 2012
The rare top decay $t \to c \bar{l}l$, which involves flavor violation, is studied as a possible probe of new physics. This decay is analyzed with one of the simplest Standard Model extensions with additional gauge symmetry formalism.
J.H. Montes de Oca Y   +3 more
core   +1 more source

Moiré‐Induced Symmetry Breaking of Charge Order in van der Waals Heterostructures

open access: yesAdvanced Materials, EarlyView.
A uniaxial moiré potential in misfit (MS)1+δTaS2 heterostructures selectively reshape charge order: the embedded 1H‐TaS2 layer hosts an incommensurate charge‐density wave, fragmented into nanometer domains and stripped of threefold symmetry. Superconductivity, however, remains uniform and fully gapped, revealing heterosymmetry stacking as a selective ...
Sandra Sajan   +12 more
wiley   +1 more source

Polar Wurtzite NbAlN: A Transition‐Metal Nitride Alloy for Polarization‐Engineered GaN Heterostructures

open access: yesAdvanced Materials, EarlyView.
A novel polar wurtzite alloy, NbAlN, is demonstrated as a transition‐metal‐containing polar barrier for GaN heterostructures. Nb atoms form coherent nanoscale enrichment within the wurtzite lattice without disrupting metal polarity. This study demonstrates that transition metals can be integrated into polar nitrides to enable polarization‐related ...
Atsushi Kobayashi   +12 more
wiley   +1 more source

IFLA Rare Books and Special Collections Section events at WLIC 2017

open access: yes, 2017
The Rare Books and Special Collections Section invites you to join our programme of events during the Congress. Full details of each session are posted on the Congress website but this post gives a short summary. Get involved!
IFLA Rare Books & Special Collections Section
core  

Electrolyte Engineering Challenges and Opportunities for Next‐Generation Aqueous Ammonium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
Aqueous ammonium‐ion batteries (AAIBs) face a hydrogen‐bond paradox: the HB network enables fast NH4+ transport but triggers water decomposition. This review dissects this dilemma, evaluates multiple electrolyte engineering strategies, and outlines four future directions for next‐generation AAIB design ABSTRACT Aqueous ammonium‐ion batteries (AAIBs ...
Zi‐Hang Huang   +6 more
wiley   +1 more source

Study of the rare decay J/ψ → μ + μ − μ + μ −

open access: yesJournal of High Energy Physics
The rare electromagnetic J/ψ → μ + μ − μ + μ − decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the LHCb experiment during 2016–2018 at a center-of-mass energy of 13 TeV ...
The LHCb collaboration   +1120 more
doaj   +1 more source

IFLA Survey on Rare Materials Cataloguing with RDA

open access: yes, 2019
Standardized cataloguing of rare materials has always been a complex matter, historically fragmented within geographical regions until the arrival in the 1980s of standardized models, such as ISBD and DCRM, which were quickly adopted internationally.
IFLA Rare Books & Special Collections Section
core  

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

open access: yesAdvanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt   +3 more
wiley   +1 more source

Search for the charmonium semi-leptonic weak decay J / ψ → D s − e + ν e + c . c . $$ J/\psi \to {D}_s^{-}{e}^{+}{\nu}_e+\mathrm{c}.\mathrm{c}. $$

open access: yesJournal of High Energy Physics
Using a data sample of (10087 ± 44) × 106 J/ψ events collected with the BESIII detector at a center-of-mass energy of s = 3.097 $$ \sqrt{s}=3.097 $$ GeV, a dedicated search for the charmonium semileptonic weak decay J / ψ → D s − e + ν e + c . c .
The BESIII collaboration   +706 more
doaj   +1 more source

Home - About - Disclaimer - Privacy