Promising pathways for photoassociative formation of ultracold heteronuclear alkali metal dimers in their lowest rovibronic levels (denoted X(0,0)) are examined using high-quality ab initio calculations of potential energy curves currently available. A promising pathway for KRb, involving the resonant coupling of the 2(1)Pi and 1(1)Pi states just below the lowest excited asymptote (K(4s) + Rb(5...

We determine the light baryon spectrum on ensembles generated by Coordinated Lattice Simulations (CLS) effort, employing $N_f=2+1$ flavours of non-perturbatively improved Wilson fermions. The hadron masses are interpolated and extrapolated within quark mass plane, utilizing three distinct trajectories, two which intersect close to physical point third one approaching SU(3) chiral limit. results...

Abstract Let $\Sigma $ be a compact surface with boundary. For given conformal class c on the functional $\sigma _k^*(\Sigma ,c)$ is defined as supremum of k th normalized Steklov eigenvalue over all metrics in . We consider behavior this moduli space classes A precise formula for limit ,c_n)$ when sequence $\{c_n\}$ degenerates obtained. apply to study natural analogs Friedlander–Nadirashvili ...

We report the first evidence for $X(3872)$ production in two-photon interactions by tagging either electron or position final state, exploring highly virtual photon region. The search is performed $e^+e^- \rightarrow e^+e^-J/\psi\pi^+\pi^-$, using 825 fb$^{-1}$ of data collected Belle detector operated at KEKB $e^+e^-$ collider. observe three candidates with an expected background $0.11\pm 0.10...

We present the first measurement of branching fraction singly Cabibbo-suppressed (SCS) decay $\Lambda_c^+ \to p \eta'$ with $\eta' \eta\pi^+\pi^-$, using a data sample corresponding to an integrated luminosity 981 $\rm fb^{-1}$, collected by Belle detector at KEKB $e^{+}$$e^{-}$ asymmetric-energy collider. A significant $\Lambda_c^+$ signal is observed for time significance 5.4$\sigma$. The rel...

Destructive interference from phase fluctuations caused by motion during (1)H magnetic resonance spectroscopy (MRS) stimulated-echo acquisition mode (STEAM) and point-resolved spectroscopy (PRESS) acquisitions can significantly diminish the traditional radicalN-gain in signal-to-noise ratio (SNR) afforded by averaging N signals, especially in the torso. The SNR loss is highly variable among ind...

Numerous studies reveal that phosphatidylinositol (PI) 3-kinase and Akt protein kinase are important mediators of cell survival. However, the survival-promoting mechanisms downstream of these enzymes remain uncharacterized. Glycogen synthase kinase-3 beta (GSK-3 beta), which is inhibited upon phosphorylation by Akt, was recently shown to function during cell death induced by PI 3-kinase inhibit...

The presence of a delocalized pi-bond is often considered an essential criterion for achieving planar hypercoordination. Herein, we show that sigma-delocalization could be sufficient to make the configuration the...

The Gauss map g of a surface $$\Sigma $$ in $${\mathbb {R}}^4$$ takes its values the Grassmannian oriented 2-planes : $$G^+(2,4) . We give geometric criteria stability for minimal surfaces terms g. show particular that if area |g(\Sigma ) | is smaller than 2\pi then stable by deformations which fix boundary surface. This answers question Barbosa and Do Carmo (Math Z 173:13–28, 1980)

Lasing of Yb3+ in a disordered single crystal host, NaGd(WO4)2, is reported. Pump efficiencies as high as 20% and slope efficiencies as high as 30% are achieved for both sigma- and pi-polarizations with Ti:sapphire laser pumping. The emission of Yb:NaGd(WO4)2 is centered near 1030 nm. Tunability between 1016 and 1049 nm is obtained with a Lyot filter.