Physical constants 1 PHYSICAL CONSTANTS Table 11 Reviewed 2013 by PJ Mohr NIST Mainly from the CODATA Re commended Values of the Fundamental Physical Constants 2010 by PJ Mohr BN Taylor ID: 8889
Download Pdf The PPT/PDF document " Physical constants PHYSICAL CONSTANTS ..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
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).