Physical constants PHYSICAL CONSTANTS Table Reviewed by PJ Mohr NIST - PDF document

Presentation on theme: " Physical constants PHYSICAL CONSTANTS Table Reviewed by PJ Mohr NIST "— Presentation transcript

1.Physicalconstants 1.PHYSICALCONSTANTSTable1.1.Reviewed2013byP.J.Mohr(NIST).Mainlyfromthe\CODATARecommendedValuesoftheFundamentalPhysicalConstants:2010"byP.J.Mohr,B.N.Taylor,andD.B.NewellinRev.Mod.Phys.84,1527(2012).Thelastgroupofconstants(beginningwiththeFermicouplingconstant)comesfromtheParticleDataGroup.The¯guresinparenthesesafterthevaluesgivethe1-standard-deviationuncertaintiesinthelastdigits;thecorrespondingfractionaluncertaintiesinpartsper109(ppb)aregiveninthelastcolumn.Thissetofconstants(asidefromthelastgroup)isrecommendedforinternationalusebyCODATA(theCommitteeonDataforScienceandTechnology).Thefull2010CODATAsetofconstantsmaybefoundathttp://physics.nist.gov/constants.SeealsoP.J.MohrandD.B.Newell,\ResourceLetterFC-1:ThePhysicsofFundamentalConstants,"Am.J.Phys.78,338(2010). QuantitySymbol,equationValueUncertainty(ppb) speedoflightinvacuumc299792458ms1exactPlanckconstanth6.62606957(29)1034Js44Planckconstant,reduced~h=21.054571726(47)1034Js44=6.58211928(15)1022MeVs22electronchargemagnitudee1.602176565(35)1019C=4.80320450(11)1010esu22,22conversionconstant~c197.3269718(44)MeVfm22conversionconstant(~c)20.389379338(17)GeV2mbarn44 electronmassme0.510998928(11)MeV=c2=9.10938291(40)1031kg22,44protonmassmp938.272046(21)MeV=c2=1.672621777(74)1027kg22,44=1.007276466812(90)u=1836.15267245(75)me0.089,0.41deuteronmassmd1875.612859(41)MeV=c222uni¯edatomicmassunit(u)(mass12Catom)/12=(1g)/(NAmol)931.494061(21)MeV=c2=1.660538921(73)1027kg22,44 permittivityoffreespace0=1=¹0c28.854187817:::1012Fm1exactpermeabilityoffreespace04107NA2=12.566370614:::107NA2exact ¯ne-structureconstant=e2/4¼²0~c7.2973525698(24)103=1=137:035999074(44)y0.32,0.32classicalelectronradiusre=e2=4¼²0mec22.8179403267(27)1015m0.97(eComptonwavelength)/2e=~=mec=re13.8615926800(25)1013m0.65Bohrradius(mnucleus=1)a1=4¼²0~2=mee2=re20.52917721092(17)1010m0.32wavelengthof1eV/cparticlehc=(1eV)1.239841930(27)106m22RydbergenergyhcR1=mee4=2(4¼²0)2~2=mec22=213.60569253(30)eV22ThomsoncrosssectionT=8¼r2e/30.6652458734(13)barn1.9 BohrmagnetonB=e~=2me5.7883818066(38)1011MeVT10.65nuclearmagnetonN=e~=2mp3.1524512605(22)1014MeVT10.71electroncyclotronfreq./¯eld!ecycl=B=e=me1.758820088(39)1011rads1T122protoncyclotronfreq./¯eld!pcycl=B=e=mp9.57883358(21)107rads1T122 gravitationalconstantzGN6.67384(80)1011m3kg1s21:2105=6.70837(80)1039~c(GeV=c2)21:2105standardgravitationalaccel.gN9.80665ms2exact AvogadroconstantNA6.02214129(27)1023mol144Boltzmannconstantk1.3806488(13)1023JK1910=8.6173324(78)105eVK1910molarvolume,idealgasatSTPNAk(273.15K)/(101325Pa)22.413968(20)103m3mol1910Wiendisplacementlawconstantb=maxT2.8977721(26)103mK910Stefan-Boltzmannconstant=2k4=60~3c25.670373(21)108Wm2K43600 FermicouplingconstantGF=(~c)31.1663787(6)105GeV2500weak-mixinganglesin2b(MZ)( MS)0.23126(5)yy2:2105WbosonmassmW80.385(15)GeV=c21:9105Z0bosonmassmZ91.1876(21)GeV=c22:3104strongcouplingconstants(mZ)0.1185(6)5:1106 =3.141592653589793238e=2.718281828459045235=0.577215664901532861 1in0:0254m1A0:1nm1barn1028m21G104T1dyne105N1erg107J1eV=1:602176565(35)1019J1eV/c2=1:782661845(39)1036kg2:99792458109esu=1CkTat300K=[38:681731(35)]1eV0C273:15K1atmosphere760Torr101325Pa Themeteristhelengthofthepathtraveledbylightinvacuumduringatimeintervalof1/299792458ofasecond.yAtQ2=0.AtQ2m2Wthevalueis1/128.zAbsolutelabmeasurementsofGNhavebeenmadeonlyonscalesofabout1cmto1m.SeethediscussioninSec.10,\Electroweakmodelandconstraintsonnewphysics."yyThecorrespondingsin2forthee®ectiveangleis0.23155(5).