∧ BARYONS(S=-1,I=0)∧~0=uds

<正>~~     

≡BARYONS(S=-2,I=1/2)≡~0=uss,≡~-=dss

<正>~~     

∑BARYONS(S=-1,I=1)∑~+=uus,∑~0=uds,∑~-=dds

<正>~~     

△BARYONS(S=0,I=3/2)△~(++)=uuu,△~+=uud,△~0=udd,△~-=ddd

<正>~~     

BOTTOM BARYONS(B=-1)∧_b~0=udb,≡_b~0=usb,≡_b~-=dsb,Ω_b~-=ssb

<正>~~     

CHARMED BARYONS(C=+1)∧_c~+=udc,∑_c~(++)=uuc,∑_c~+=udc,∑_c~0=ddc,≡_c~+=usc,≡_c~0=dsc,Ω_c~0=ssc

<正>CHARMED BARYONS Revised March 2012 by C.G.Wohl(LBNL).There arc 17 known charmed baryons,and four other candidates not well enough established to be promoted to the Summary Tables.*Fig.1(a)shows the mass spectrum,and for comparison Fig.1(b)shows the spectrum of the lightest strange baryons.The∧_c and∑_c spectra ought to look much like the A and∑spectra,since a∧_c or a∑_c differs from a A or a E only by the replacement of the s quark with a c quark.However,a 3 or anΩhas more than one s quark,only one of which is changed to a c quark to make aΞ_c or anΩ_c.Thus theΞ_C andΩ_c spectra ought to be richer than the E and$2 spectra.**     

The effect of collision energy on the stereodynamics of the reaction H(~2S)+NH(X~3∑~-,v = 0,j = 0)→ N(~4S)+H_2

The quasi-classical trajectory(QCT) is calculated to study the stereodynamics properties of the title reaction H(2S)+NH(X3∑-) →N(4S)+H2 on the ground state 4A' potential energy surface(PES) constructed by Zhai and Han [2011 J.Chem.Phys.135 104314].The calculated QCT reaction probabilities and cross sections are in good agreement with the previous theoretical results.The effects of the collision energy on the k-k' distribution and the product polarization of H2 are studied in detail.It is found that the scattering direction of the product is strongly dependent on the collision energy.With the increase in the collision energy,the scattering directions of the products change from backward scattering to forward scattering.The distribution of P(θr) is strongly dependent on the collision energy below the lower collision energy(about 11.53 kcal/mol).In addition,the P(φr) distribution dramatically changes as the collision energy increases.The calculated QCT results indicate that the collision energy plays an important role in determining the stereodynamics of the title reaction.     

在N_2中[V_nCr_(3-n)(μ_3-O)(μ-O_2CCH_3)_6(THF)_3]X[n=0-3,X=Cl~-,ClO_4~-,(VO_5)_(0.5)~-]及[V_nFe_(3-n)(μ_3O)(μ-O_2CCH_3)_6(THF)_3]X(n=0-3,X=Cl~-)反应行为的原位红外光谱研究

利用原位红外光谱研究标题化合物在N2 中的反应行为。发现它们在不同温度下能使乙酸分别转化为丙酮和甲烷。它们对乙酸的丙酮化反应活性顺序 :[V3OAT]>[VFe2 OAT],[V2 CrOAT]>[Fe3OAT],[VCr2 OAT]>[Cr3OAT][OAT =(μ3 O) (μ O2 CCH3) 6(THF) 3]。它们对乙酸的甲烷化反应活性顺序 :[Cr3OAT]>[VCr2 OAT],[V2 CrOAT]>[V3OAT]>[VFe2 OAT],[FeO3OAT]。对乙酸的丙酮化反应活性[Fe3OAT]明显低于 [Fe3OAH][OAH =(μ3 O) (μ O2 CCH3) 6(H2 O) 3]。对乙酸的甲烷化反应活性 [Cr3OAT]也明显低于 [CrOAH]。并对上述 [Fe3OAT],[Cr3OAT]与 [Fe3OAH],[Cr3OAH]之间差异进行了讨论。     

NxHy-Fe(x=0～2,y=0～3)配位簇的DFT计算

采用杂化密度泛函（ＤＦＴ）之Ｂ３ＬＹＰ／６－３１１Ｇ＊＊方法研究了ＮｘＨｙ－Ｆｅ（ｘ＝０～２,ｙ＝０～３）配位簇的几何结构和振动光谱,讨论了在纯铁催化剂上,氮分子和氢分子逐步合成氨的反应机理,结果表明,合成氨过程可能经历Ｎ２和Ｎ２Ｈ２物种,在优化结构的基础上,计算了各个模型的振动频率并解释了有关实验结果。     

LIGHT UNFLAVORED MESONS(S=C=B=0)For I=1(π,b,ρ,a):ud,(uu-dd)/2~(1/2),du;for I=0(η,η',h,h',ω,Φ,f,f'):c_1(u+dd)+c_2(s)

<正>π~±IG(JP)=l-(O-)We have omitted some results that have been superseded by later experiments.The omitted results may be found in our 1988 edition Physics Letters B204 1(1988).π~±MASS The most accurate charged pion mass measurements are based upon xray wavelength measurements for transitions inπ~-mesonic atoms.The observed line is the blend of three components,corresponding to different K-shell occupancies.JECKELMANN 94 revisits the occupancy question,with the conclusion that two sets of occupancy ratios,resulting in two different pion masses(Solutions A and B),are equally probable.We choose the higher Solution B since only this solution is consistent with a positive mass-squared for the muon neutrino,given the precise muon momentum measurements now available(DAUM 91,ASSAMAGAN 94,and ASSAMAGAN 96)for the decay of pions at rest.Earlier mass determinations with pi-mesonic atoms may have used incorrect K-shell screening corrections.Measurements with an error of0.005 MeV have been omitted from this Listing.     

关于介分子离子(αp,μ~-)和(αp,2μ~-)

应用ACQM理论和方法研究介分子离子(αp,μ~-)和(αp,2μ~-).发现(αp,μ~-)的基态(X~2Σ~+)为排斥态;(αp,2μ~-)为束缚态,平衡核间距R_e=0.0078bohr,能量极小值E=-551.78a.u.     

DOUBLY CHARMED BARYONS(C=+2)≡_(cc)~(++)=ucc,≡_(cc)~+=dcc,Ω_(cc)~+=scc

<正>~~     

Theoretical study of stereodynamics for the D'+ DS(v=0,j=0) → D'D + S abstraction reaction

Quasiclassical trajectory (QCT) calculations have been performed for the abstraction reaction, D'+ DS(v = 0, j = 0) → D'D + S on a new LZHH potential energy surface (PES) of the adiabatic 3 A electronic state [Lü et al. 2012 J. Chem. Phys. 136 094308]. The collision energy effect on the integral cross section and product polarization are studied over a wide collision energy range from 0.1 to 2.0 eV. The cross sections calculated by the QCT procedure are in good accordance with previous quantum wave packet results. The three angular distribution functions, P(θr), P(φr), and P(θr,φr), together with the four commonly used polarization-dependent differential cross sections ((2π/σ)(dσ00/dωt), (2π/σ)(dσ20/dωt), (2π/σ)(dσ22+/dωt), (2π/σ)(dσ21/dωt)) are obtained to gain insight into the chemical stereodynamics of the title reaction. Influences of the collision energy on the product polarization are exhibited and discussed.     

Quantized (1, 0) ⊕ (0, 1) Fields

We find a mapping between antisymmetric tensormatter fields and the Weinberg 2(2j + 1)-componentbispinor fields. Equations which describethe j = 1 antisymmetric tensor field coincide with the Hammer-Tucker equations entirely and withthe Weinberg ones within a subsidiary condition, theKlein-Gordon equation. A new Lagrangian for the Weinbergtheory is proposed which is scalar and Hermitian. It is built on the basis of the concept ofWeinberg doubles. The origin of acontradiction between the classical theory, the Weinbergtheorem B – A = for quantum relativisticfields, and the claimed longitudity of the antisymmetrictensor field [transformed on the (1, 0) (0, 1)Lorentz group representation] after quantization isclarified. Analogs of the j = 1/2 Feynman–Dysonpropagator are presented in the framework of the j = 1 Weinberg theory.It is then shown that under a definite choice of fieldfunctions and initial and boundary conditions themassless j = 1 Weinberg–Tucker–Hammerequations contain all the information that the Maxwell equationsfor the electromagnetic field have. Thus, the formerappear to be of use in describing some physicalprocesses.     

C+OH(v=0-3,j=0-6)→CO+H反应的准经典轨线研究

运用准经典轨线方法,在碰撞能为1.0eV时,研究了反应物OH分子的振转激发对C+OH反应的立体动力学性质的影响.详细地讨论了该反应在不同反应物振转态下的矢量性质.计算表明,OH分子的振转激发对C+OH反应的矢量性质非常敏感,这种现象在对该反应的标量性质的研究中是不存在的.     

The stereodynamic properties of the F+HO(v,j) → HF+O reaction on~1 A' and ~3A' potential energy surfaces by quasi-classical trajectory calculations:Initial excitation effect(v=1-3, j=0 and v= 0, j=1-3)

The stereodynamic properties of the F ＋ HO （v, j） reaction are explored by quasi-classical trajectory （QCT） calculations performed on the 1At and 3At potential energy surfaces （PESs）. Based on the polarization-dependent differential cross sections （PDDCSs） and the angular distributions of the product angular momentum with the reactant at different values of initial v or j, the results show that the product scattering and product polarization have strong links with initial vibrationalrotational numbers of v and j. The significant manifestation of the normal DCSs is that the forward scattering gradually becomes predominant with the initial vibrational excitation increasing, and the scattering angle of the HF product taking place on the 3At potential energy surface is found to be more sensitive to the initial value of v. The product orientation and alignment are strongly dependent on the initial rovibrational excitation effect. With enhancement in the initial rovibrational excitation effect, there is an overall decrease in the product orientation as well as in the product alignment either perpendicular to the reagent relative velocity vector k or along the direction of the y axis, for which the initial rotational excitation effect is much more noticeable than the vibrational excitation effect. Moreover, the initial rovibrational excitation effect on the product polarization is more pronounced for the 3At potential energy surface than for the 1At potential energy surface.     

Structures of (ΩΩ)0 and (([1])Ω)1 in Extended Chiral SU(3) Quark Model

The structures of (ΩΩ)0 and (([1])Ω)1 are studied in the extended chiral SU(3) quark model in whichvector meson exchanges are included. The effect from the vector meson fields is very similar to that from the one-gluonexchange (OGE) interaction. Both in the chiral SU(3) quark model and in the extended chiral SU(3) quark model,di-omega (ΩΩ)0 is always deeply bound, with over one hundred MeV binding energy, and (([1])Ω)1 ‘s binding energyis around 20 MeV. An analysis shows that the quark exchange effect plays a very important role for making di-omega(ΩΩ)0 deeply bound.