简介：Consideringthedensitydependenceofquarkmass,weinvestigatethephasetransitionbetweenthe(un-paired)strangequarkmatterandthecolor-flavor-lockedmatter,whicharesupposedtobetwocandidatesforthegroundstateofstronglyinteractingmatter.Wefindthatifthecurrentmassofstrangequarkm_sissmall,thestrangequarkmatterremainsstableunlessthebaryondensityisveryhigh.Ifm_sislarge,thephasetransitionfromthestrangequarkmattertothecolor-flavor-lockedmatterinparticulartoitsgaplessphaseisfoundtobedifferentfromtheresultspredictedbypreviousworks.Acomplicatedphasediagramofthree-flavorquarkmatterispresented,inwhichthecolor-flavor-lockedphaseregionissuppressedformoderatedensities.

简介：<正>PSA标致雪铁龙集团同时想办法让燃料电池体积变小,更方便安装到车里。首先,夸克的燃料电池由水冷却改为空气冷却。这样避免安装一个体积庞大的水冷却回路,空出相当的空间留给其他装置也让动力总成的体积变小。另一方面,取消水制冷回路避免了燃料电池的一大主要缺

简介：BasedonarelativisticquarkmodelapproachwithaneffectivepotentialU(r)=(ac/2)(1+γ0)r2,thespincontentofthenucleonisinvestigated.Pseudo-scalarinteractionbetweenquarksandGoldstonebosonsisemployedtocalculatethecouplingsbetweentheGoldstonebosonsandthenucleon.Differentapproachestodealwiththecenterofmasscorrectionintherelativisticquarkpotentialmodelapproacharediscussed.

简介：Basedonarelativisticquarkmodelapproach,thetransitionpropertiesofthefirstnucleonresonance△(1232),andthecouplingconstantsgπNN,g△πNareinvestigated.Tvodifferentvaystoremovethecenterofmassmotionareconsidered.Theresultsoftherelativisticapproacheswithandwithoutcenterofmasscorrectionarecomparedwiththoseofnonrelativisticconstituentquarkmodel.Moreover,pionmesoncloudeffectonthesecalculatedobservablesisexplicitlyaddressed.Betterresultsareobtainedbytakingthepionmesoncloudintoaccount.

简介：Thelittle-Higgsmodelstypicallycontainanewvector-liketopquarkT,whichplaysakeyroleinbreakingtheelectroweaksymmetry.InthecontextofthelittlestHiggs(LH)model,westudysingleproductionofthiskindofnewparticlesviatheprocessep→eb→veTinthefuturelinac-ring-typeepcollider(LCО×LHC).Wefindthattheproductioncrosssectionisintherangeof1.2×10^-40.48pbattheLCО×LHCwith√s=3.7TeV.

简介：Wetrytoapplyaconstituentquarkmodel(avarietychiralconstituentquarkmodel)andtheresonatinggroupapproachforthemulti-quarkproblemstocomputetheeffectivepotentialbetweentheNN-inS-wave(thequarksinthenucleonsNandN-,andthetwonucleonsrelativelyaswell,areinSwave)soastoseethepossibilityiftheremaybeatightboundstateofsixquarksasindicatedbyastrongenhancementatthresholdofpp-inJ/ψandBdecays.TheeffectivepotentialwhichweobtainintermsofthemodelandapproachshowsiftheexperimentalenhancementisreallycausedbyatightS-waveboundstateofsixquarks,thenthequantumnumberoftheboundstateisverylikelytobeI=1,JPC=0-+.