Results 21 to 30 of about 4,902,736 (350)

Suppressed ion-scale turbulence in a hot high-β plasma

Nature Communications, 2016
Magnetic fusion reactors with higher ratio of plasma kinetic pressure to magnetic pressure are economically desirable. The authors demonstrate a path to such a reactor in a field reversed configuration that can attain microstability and reduced particle ...
L. Schmitz, D. P. Fulton, E. Ruskov, C. Lau, B. H. Deng, T. Tajima, M. W. Binderbauer, I. Holod, Z. Lin, H. Gota, M. Tuszewski, S. A. Dettrick, L. C. Steinhauer   +12 more
doaj   +1 more source

Investigation of the fine structure of antihydrogen. [PDF]

, 2020
At the historic Shelter Island Conference on the Foundations of Quantum Mechanics in 1947, Willis Lamb reported an unexpected feature in the fine structure of atomic hydrogen: a separation of the 2S1/2 and 2P1/2 states1.
ALPHA Collaboration
core   +1 more source

Neutron star deformation due to poloidal-toroidal magnetic fields of arbitrary multipole order: a new analytic approach [PDF]

, 2015
A recipe is presented to construct an analytic, self-consistent model of a non-barotropic neutron star with a poloidal-toroidal field of arbitrary multipole order, whose toroidal component is confined in a torus around the neutral curve inside the star ...
Mastrano, Alpha, Melatos, Andrew, Suvorov, Arthur George   +2 more
core   +2 more sources

Non-perturbative renormalization of the static axial current in two-flavour QCD [PDF]

, 2006
We perform the non-perturbative renormalization of matrix elements of the static-light axial current by a computation of its scale dependence in lattice QCD with two flavours of massless O(a) improved Wilson quarks.
, Alpha Collaboration, ALPHA collaboration, ALPHA collaboration, ALPHA collaboration, ALPHA collaboration, ALPHA collaboration, ALPHA collaboration, D. Guazzini, F. Knechtli, Jochen Heitger, K.-I. Ishikawa, L. Del Debbio, M. Della Morte, M. Della Morte, M. Okamoto, M.A. Shifman, Michele Della Morte, Particle Data Group Collaboration, Patrick Fritzsch, R. Sommer, R. Sommer, T. Onogi, UKQCD Collaboration, W. Lee   +24 more
core   +2 more sources

New distributional record of the Indo-Pacific tropical sand goby, Favonigobius reichei (Actinopterygii, Gobiiformes, Gobiidae), from Jeju-do Island, Korea [PDF]

Acta Ichthyologica et Piscatoria
Two specimens, a male–female pair of Favonigobius reichei (Bleeker, 1854) (32.7–41.9 mm SL) were collected from the intertidal zone based on sandy and muddy areas in Jeju-do Island, Korea.
Min-Soo Kim, Yu-Sin Shin, Jae-Goo Kim
doaj   +3 more sources

Buffett's Alpha [PDF]

SSRN Electronic Journal, 2013
Warren Buffett's Berkshire Hathaway has realized a Sharpe ratio of 0.79 with significant alpha to traditional risk factors. The alpha became insignificant, however, when we controlled for exposure to the factors "betting against beta" and "quality minus junk." Furthermore, we estimate that Buffett's leverage is about 1.7 to 1, on average.
Andrea Frazzini, David Kabiller, Lasse H. Pedersen   +2 more
openaire   +6 more sources

Towards a precision computation of f_Bs in quenched QCD

, 2003
We present a computation of the decay constant f_Bs in quenched QCD. Our strategy is to combine new precise data from the static approximation with an interpolation of the decay constant around the charm quark mass region.
A. Juttner, A. Shindler, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, Chetyrkin, de Divitiis, Della Morte, H. Molke, Hasenfratz, Heitger, J. Heitger, J. Rolf, Jüttner, M. Della Morte, R. Sommer, S. Dürr, Sommer, Yamada   +22 more
core   +1 more source

Asymmetric synthesis of γ-chloro-α,β-diamino- and β,γ-aziridino-α-aminoacylpyrrolidines and -piperidines via stereoselective Mannich-type additions of N-(diphenylmethylene)glycinamides across α-chloro-N-sulfinylimines [PDF]

, 2012
The asymmetric synthesis of new chiral gamma-chloro-alpha,beta-diaminocarboxylamide derivatives by highly diastereoselective Mannich-type reactions of N-(diphenylmethylene) glycinamides across chiral alpha-chloro-N-p-toluenesulfinylaldimines was ...
Augustyns, Koen, Callebaut, Gert, De Kimpe, Norbert, Mangelinckx, Sven, Tornroos, Karl W, Van der Veken, Pieter   +5 more
core   +3 more sources

A strategy for implementing non-perturbative renormalisation of heavy-light four-quark operators in the static approximation

, 2006
We discuss the renormalisation properties of the complete set of $\Delta B = 2$ four-quark operators with the heavy quark treated in the static approximation.
Alpha Collaboration, ALPHA collaboration, Alpha collaboration, ALPHA collaboration, ALPHA collaboration, ALPHA collaboration, C. Pena, Carlos Pena, D. Bećirević, D. Bećirević ., E. Obeso, F. Palombi, Filippo Palombi, Hartmut Wittig, J. Reyes, M. Della Morte, Mauro Papinutto, R. Frezzotti, R. Frezzotti, R. Frezzotti, S. Sint, V. Giménez   +21 more
core   +1 more source

Regularity of aperiodic minimal subshifts [PDF]

, 2017
At the turn of this century Durand, and Lagarias and Pleasants established that key features of minimal subshifts (and their higher-dimensional analogues) to be studied are linearly repetitive, repulsive and power free.
Dreher, Fabian, Kesseböhmer, Marc, Mosbach, Arne, Samuel, Tony, Steffens, Malte   +4 more
core   +3 more sources