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A Brief Overview of Hard-Thermal-Loop Perturbation Theory

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Communications in Theoretical Physics 2012年第3期57卷 409-421页

作者：苏楠 fakultt fr Physik Universitt BielefeldD-33615 BielefeldGermany

The poor convergence of quantum field theory at finite temperature has been one of the main obstacles in the practical applications of thermal QCD for *** we briefly review the progress of hard-thermal-loop perturbation theory (HTLpt) in reorganizing the perturbative expansion in order to improve the *** quantum mechanical anharmonic oscillator is used as a simple example to show the breakdown of weak-coupling expansion,and variational perturbation theory is introduced as an effective resummation scheme for divergent weak-coupling *** discuss HTLpt thermodynamic calculations for QED,pure-glue QCD,and QCD with N f=3 up to three-loop *** results suggest that HTLpt provides a systematic framework that can be used to calculate both static and dynamic quantities for temperatures relevant at LHC.

关键词： thermal field theory resummation hard thermal loops

The Short Local Algebras of Dimension 6 with Non-projective Reflexive Modules

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Communications in Mathematics and Statistics 2023年第2期11卷 195-227页

作者： Claus Michael Ringel fakultät für Mathematik Universität BielefeldPO Box 10013133501 BielefeldGermany

Let A be a finite-dimensional local algebra over an algebraically closed field,let J be the radical of *** modules we are interested in are the finitely generated left *** are always reflexive,and an algebra is self-injective iff allmodules are *** discuss the existence of non-projective reflexive modules in case A is not *** assume that A is short(this means that J^(3)=0).In a joint paper with Zhang Pu,it has been shown that 6 is the smallest possible dimension of A that can occur and that in this case the following conditions have to be satisfied:J^(2)is both the left socle and the right socle of A and there is no uniform ideal of length *** present paper is devoted to showing the converse.

关键词： Short local algebra Reflexive module Gorenstein-projective module Bristle Atom Bar Bristle-bar layout

Hunting η-bound nuclei

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Chinese Physics C 2010年第9期34卷 1218-1223页

作者： H.Machner Institut für Kernphysik Forschungszentrum Jülich fakultt für Physik Universitt Duisburg-Essen

The η meson can be bound to atomic *** search is discussed in the form of final state interaction for the reactions dp → 3 Heη and dd → 4 Heη.For the latter case tensor polarized deuterons were used in order to extract the s-wave *** both reactions complex scattering lengths are deduced： a 3 Heη = ± 10.7±0.8 ＋0.1 -0.5 ＋i· 1.5±2.6 ＋1.0-0.9 fm and a 4 Heη = [±（3.1±0.5）＋i·（0±0.5）] *** a two-nucleon transfer reaction under quasi-free conditions,p^ 27 Al → ^3 HeX,was *** system X can be the bound 25 Mg  η at *** a possible decay of an intermediate N  （1535） is required,a highly significant bump shows up in the missing mass *** data give for a bound state a binding energy of 13.3±1.6 MeV and a width of σ=4.4±1.3 MeV.

关键词： η meson production η nucleus interaction final state interaction recoil free kinematics

Synthesis and Crystal Structure of N-(Biphenyl-2-thiocarbamoyl)-4-(1,3-dichlorophenyl) Carboxamide

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Chinese Journal of Structural Chemistry 2015年第6期34卷 853-857页

作者： AAMER SAEED ULRICH FL?RKE Department of Chemistry Quaid-I-Azam University Department Chemie Fakult?t fur Naturwissenschaften Universit?t Paderborn

The synthesis of the title molecule was achieved by the reaction of 2,4-dichloro- benzoyl chloride with potassium thiocyanate in 1：1 molar ratio in dry acetonitrile to afford the corresponding isothiocyante in situ followed by the treatment with 2-aminobiphenyl. The structure of the target compound was established by elemental analysis, FTIR, 1H, 13C NMR and mass spectroscopy and unequivocally confirmed by the crystallographic data. The title compound crystallizes in the monoclinic space group P21/n with a = 13.356（2）, b = 7.0761（11）, c = 20.539（3） A, β = 105.723（4）°, V= 1868.5（5） A3 and Z = 4.

关键词： synthesis crystal structure N-(biphenyl-2-thiocarbamoyl)-4-(1,3-dichlorophenyl) carboxamide

Synthesis and Crystal Structure of 3,5-Dichloro-N-(2-methoxyphenyl)benzamide

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Chinese Journal of Structural Chemistry 2013年第2期32卷 211-214页

作者： Aamer Saeed Ulrich Flrke Department of Chemistry Quaid-I-Azam University Department Chemie Fakultt fur Naturwissenschaften Universitt Paderborn

The title compound was synthesized by the direct reaction of 3,5-dichlorobenzoic acid with 2-methoxyaniline in the presence of DCC and HOBT. The structure was supported by the spectroscopic data and unambiguously confirmed by the single-crystal X-ray diffraction studies. It crystallizes from a methanol solution in the monoclinic space group P21/c with unit cell dimensions of a = 4.9369（16）, b = 13.351（5）, c = 20.168（7） A, β = 96.755（8）°, V= 1320.1（8） A^3 and Z=4.

关键词： chlorinated benzamide synthesis crystal structure

The Dichotomy Between Traces on d-sets Г in R^n and the Density of D(R^n\Г) in Function Spaces

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Acta Mathematica Sinica,English Series 2008年第4期24卷 539-554页

作者： Hans TRIEBEL Mathematisches Institut Fakultt fr Mathematik und InformatikFriedrich-Schiller-Universitt JenaD-07737 JenaGermany

A space Apq^s （R^n） with A ： B or A = F and s ∈R, 0 〈 p, q 〈 ∞ either has a trace in Lp（Г）, where Г is a compact d-set in R^n with 0 〈 d 〈 n, or D（R^n／Г） is dense in it. Related dichotomy numbers are ... 详细信息

A space Apq^s （R^n） with A ： B or A = F and s ∈R, 0 〈 p, q 〈 ∞ either has a trace in Lp（Г）, where Г is a compact d-set in R^n with 0 〈 d 〈 n, or D（R^n／Г） is dense in it. Related dichotomy numbers are introduced and calculated.

关键词： function spaces d-sets fractals traces

Pressure-Temperature Evolution of a Mylonitic Gneiss from the Lower Seve Nappe in the Handol Area,Central Sweden

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Journal of Earth Science 2021年第6期32卷 1496-1511页

作者： Botao Li Hans-Joachim Massonne Xiaoping Yuan School of Earth Sciences China University of GeosciencesWuhan430074China fakultät Chemie Universität Stuttgart70569StuttgartGermany

Ultrahigh-pressure metamorphism has recently been reported from various crustal rocks in the Seve Nappe Complex(SNC)in which microdiamonds were ***,in gneiss from the Lower Seve Nappe(LSN),neither any direct petrographic indication for UHP was reported nor the metamorphic evolution was well *** studied a mylonitic gneiss from the Handol area of the LSN and applied phase-diagram modeling and Ti-in-biotite *** on the compositions of garnet and biotite and observed mineral assemblages,a path was reconstructed passing through about 8 kbar and 730℃at prograde ***-pressure and initial retrograde stages occurred at 9.0–10.2 kbar at 745-775℃,and 7–9 kbar atfrom the *** higher peak pressures were reported recently for metamorphic rocks of the LSN,a possible interpretation is that slices or erased blocks were subducted,metamorphosed at different depths,and exhumed in a subduction ***,the dominant gneiss of the SNC experienced only a medium-pressure metamorphism in the upper part of the downgoing Baltica *** from different depth levels were brought together in an exhumation channel located between Baltica and the overlying plate.

关键词： Lower Seve Nappe Swedish Caledonides mylonitic gneiss P-T pseudosection modeling Ti-in-biotite thermometry metamorphic rocks

THE REGULAR COMPONENTS OF THE AUSLANDER-REITEN QUIVER OF A TILTED ALGEBRA

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Chinese Annals of Mathematics,Series B 1988年第1期9卷 1-18页

作者： CLAUS MICHAEL RLNGEL fakultt Fr Mathematik Universitt D-4800 Bielefeld 1 West-Germany

Let B be a connected finite-dimensional hereditary algebra of infinite *** is shown that there exists a regular tilting B-module if and only if B is wild andhas at least three simple *** this way,the author determines the possible form ofregular components which arise as a connecting component of the Auslander-Reitenquiver Γ(A)of a tilted algebra *** second result asserts that for a tilted algebra A,any regular component of Γ(A)which is not a connecting component,is quasi-serial.

关键词： Th THE REGULAR COMPONENTS OF THE AUSLANDER-REITEN QUIVER OF A TILTED ALGEBRA

Ion-bunch energy acoustic tracing by modulation of the depth-dose curve

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High Power Laser Science and Engineering 2023年第3期 90-97页

作者： A.Pra?elsperger F.Balling H.-P.Wieser K.Parodi J.Schreiber fakult?t für Physik Ludwig-Maximilians-Universit?t München

Characterizing exact energy density distributions for laser-accelerated ion bunches in a medium is challenging due to very high beam intensities and the electro-magnetic pulse emitted in the laser±plasma interaction. Ion-bunch energy acoustic tracing allows for reconstructing the spatial energy density from the ionoacoustic wave generated upon impact in water. We have extended this approach to tracing ionoacoustic modulations of broad energy distributions by introducing thin foils in the water reservoir to shape the acoustic waves at distinct points along the depth-dose curve. Here, we present first simulation studies of this new detector and reconstruction approach, which provides an online read-out of the deposited energy with depth within the centimeter range behind the ion source of state-of-the-art laser-plasma-based accelerators.

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