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91.
Ben Anthes Andrea Cattaneo Sönke Rollenske Adriano Tomassini 《Annals of Global Analysis and Geometry》2018,53(3):377-403
Wintgen ideal submanifolds in space forms are those ones attaining equality pointwise in the so-called DDVV inequality which relates the scalar curvature, the mean curvature and the scalar normal curvature. As conformal invariant objects, they are suitable to study in the framework of Möbius geometry. This paper continues our previous work in this program, showing that Wintgen ideal submanifolds can be divided into three classes: the reducible ones, the irreducible minimal ones in space forms (up to Möbius transformations), and the generic (irreducible) ones. The reducible Wintgen ideal submanifolds have a specific low-dimensional integrable distribution, which allows us to get the most general reduction theorem, saying that they are Möbius equivalent to cones, cylinders, or rotational surfaces generated by minimal Wintgen ideal submanifolds in lower-dimensional space forms. 相似文献
92.
Giulietti A Bourgeois N Ceccotti T Davoine X Dobosz S D'Oliveira P Galimberti M Galy J Gamucci A Giulietti D Gizzi LA Hamilton DJ Lefebvre E Labate L Marquès JR Monot P Popescu H Réau F Sarri G Tomassini P Martin P 《Physical review letters》2008,101(10):105002
A gamma-ray source with an intense component around the giant dipole resonance for photonuclear absorption has been obtained via bremsstrahlung of electron bunches driven by a 10-TW tabletop laser. 3D particle-in-cell simulation proves the achievement of a nonlinear regime leading to efficient acceleration of several sequential electron bunches per each laser pulse. The rate of the gamma-ray yield in the giant dipole resonance region (8相似文献
93.
94.
A. Amore-Bonapasta C. Battistoni A. Lapiccirella E. Semprini F. Stefani N. Tomassini 《Il Nuovo Cimento D》1985,6(1):51-63
Summary Anab initio HFR-MO-LCAO-SCF-CI study of the SiH
n
(n=1, 4) compounds has been carried out. The influence of the presence of silicon dangling bonds has been investigated in relation
to the structural, vibrational and electronic behaviour of these molecules.
Riassunto Sono stati eseguiti calcoliab initio del tipo HFR-MO-LCAO-SCF-CI sui composti SiH n (n=1, 4). In particolare, è state investigata l’influenza che hanno i legami rotti generati nel silicio sulle proprietà strutturali, vibrazionali ed elettroniche delle monecole inquestine.
Резюме Проводится HFR-MO-LCAO-SCF-CI исследование соединений SiH n . (n=1, 4). В часности, изучается влияние силиконовых связей на структурное, колебательное и электронное поведение этих молекул.相似文献
95.
Kushnirenko A Alkhazov G Atamantchouk AG Balatz MY Bondar NF Cooper PS Dauwe LJ Davidenko GV Dersch U Dolgolenko AG Dzyubenko GB Edelstein R Emediato L Endler AM Engelfried J Eschrich I Escobar CO Evdokimov AV Filimonov IS Garcia FG Gaspero M Giller I Golovtsov VL Gouffon P Gülmez E Kangling H Iori M Jun SY Kaya M Kilmer J Kim VT Kochenda LM Konorov I Kozhevnikov AP Krivshich AG Krüger H Kubantsev MA Kubarovsky VP Kulyavtsev AI Kuropatkin NP Kurshetsov VF Kwan S Lach J Lamberto A Landsberg LG 《Physical review letters》2001,86(23):5243-5246
We report new precision measurements of the lifetimes of the Lambda(+)(c) and D0 from SELEX, the charm hadroproduction experiment at Fermilab. Based upon 1630 Lambda(+)(c) and 10 210 D0 decays we observe lifetimes of tau[Lambda(+)(c)] = 198.1+/-7.0+/-5.6 fs and tau[D0] = 407.9+/-6.0+/-4.3 fs. 相似文献
96.
G.?Fazio G.?GiardinaEmail author A.?Lamberto A.?I.?Muminov A.?K.?Nasirov F.?Hanappe L.?Stuttgé 《The European Physical Journal A - Hadrons and Nuclei》2004,22(1):75-87
The dynamical effects of the entrance channel on the competition between quasifission and fusion processes, and on the evaporation residue formation are investigated. We have analyzed the results and compared our calculations with the experimental data obtained in the 16
O + 204
Pb and 96
Zr + 124
Sn reactions having very different mass asymmetries and leading to the 220
Th
* compound nucleus. We have found that different partial capture cross-sections
for these reactions lead to different fusion-quasifission competitions and, consequently, to different partial fusion cross-sections
of the compound nucleus formed in the two reactions. The dynamical conditions also affect the fission-evaporation competition of the excited intermediate nuclei along the CN de-excitation cascade and, consequently, the evaporation residue formation.Received: 8 March 2004, Revised: 5 April 2004, Published online: 25 October 2004PACS:
25.70.Jj Fusion and fusion-fission reactions - 25.70.-z Low and intermediate energy heavy-ion reactions - 27.80. + w
- 27.90. + b
相似文献
97.
98.
Debra J. Searles Lamberto Rondoni Denis J. Evans 《Journal of statistical physics》2007,128(6):1337-1363
We give a proof of transient fluctuation relations for the entropy production (dissipation function) in nonequilibrium systems,
which is valid for most time reversible dynamics. We then consider the conditions under which a transient fluctuation relation
yields a steady state fluctuation relation for driven nonequilibrium systems whose transients relax, producing a unique nonequilibrium
steady state. Although the necessary and sufficient conditions for the production of a unique nonequilibrium steady state
are unknown, if such a steady state exists, the generation of the steady state fluctuation relation from the transient relation
is shown to be very general. It is essentially a consequence of time reversibility and of a form of decay of correlations
in the dissipation, which is needed also for, e.g., the existence of transport coefficients. Because of this generality the
resulting steady state fluctuation relation has the same degree of robustness as do equilibrium thermodynamic equalities.
The steady state fluctuation relation for the dissipation stands in contrast with the one for the phase space compression
factor, whose convergence is problematic, for systems close to equilibrium. We examine some model dynamics that have been
considered previously, and show how they are described in the context of this work. 相似文献
99.
100.