FundamentalPhysicalConstants151ExtensiveListingRelativestdQuantitySymbolValueUnituncertur Rydbergconstant 2mec2hR11097373156852773m1661012R1c3289841960361221015Hz661012R1hc2179871 ID: 330616
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From:http://physics.nist.gov/constants FundamentalPhysicalConstants—ExtensiveListingRelativestd.QuantitySymbolValueUnituncert.ur Rydbergconstant 2mec=2hR110973731:568527(73)m�16:610�12R1c3:289841960361(22)1015Hz6:610�12R1hc2:17987197(11)10�18J5:010�8R1hcineV13:60569193(34)eV2:510�8Bohrradius =4pR1=4p0h2=mee2a00:52917720859(36)10�10m6:810�10Hartreeenergye2=4p0a0=2R1hc= 2mec2Eh4:35974394(22)10�18J5:010�8ineV27:21138386(68)eV2:510�8quantumofcirculationh=2me3:6369475199(50)10�4m2s�11:410�9h=me7:273895040(10)10�4m2s�11:410�9ElectroweakFermicouplingconstant3GF=(hc)31:16637(1)10�5GeV�28:610�6weakmixingangle4W(on-shellscheme)sin2W=s2W1�(mW=mZ)2sin2W0:22255(56)2:510�3Electron,e�electronmassme9:10938215(45)10�31kg5:010�8inu,me=Ar(e)u(electronrelativeatomicmasstimesu)5:4857990943(23)10�4u4:210�10energyequivalentmec28:18710438(41)10�14J5:010�8inMeV0:510998910(13)MeV2:510�8electron-muonmassratiome=mm4:83633171(12)10�32:510�8electron-taumassratiome=mt2:87564(47)10�41:610�4electron-protonmassratiome=mp5:4461702177(24)10�44:310�10electron-neutronmassratiome=mn5:4386734459(33)10�46:010�10electron-deuteronmassratiome=md2:7244371093(12)10�44:310�10electrontoalphaparticlemassratiome=ma1:37093355570(58)10�44:210�10electronchargetomassquotient�e=me�1:758820150(44)1011Ckg�12:510�8electronmolarmassNAmeM(e);Me5:4857990943(23)10�7kgmol�14:210�10Comptonwavelengthh=mecC2:4263102175(33)10�12m1:410�9C=2p= a0= 2=4pR1 C386:15926459(53)10�15m1:410�9classicalelectronradius 2a0re2:8179402894(58)10�15m2:110�9Thomsoncrosssection(8p=3)r2ee0:6652458558(27)10�28m24:110�9electronmagneticmomente�928:476377(23)10�26JT�12:510�8toBohrmagnetonratioe=B�1:00115965218111(74)7:410�13tonuclearmagnetonratioe=N�1838:28197092(80)4:310�10electronmagneticmomentanomalyjej=B�1ae1:15965218111(74)10�36:410�10electrong-factor�2(1+ae)ge�2:0023193043622(15)7:410�13electron-muonmagneticmomentratioe=m206:7669877(52)2:510�8electron-protonmagneticmomentratioe=p�658:2106848(54)8:110�9Page2 From:http://physics.nist.gov/constants FundamentalPhysicalConstants—ExtensiveListingRelativestd.QuantitySymbolValueUnituncert.ur taumolarmassNAmtM(t);Mt1:90768(31)10�3kgmol�11:610�4tauComptonwavelengthh=mtcC;t0:69772(11)10�15m1:610�4C;t=2p C;t0:111046(18)10�15m1:610�4Proton,pprotonmassmp1:672621637(83)10�27kg5:010�8inu,mp=Ar(p)u(protonrelativeatomicmasstimesu)1:00727646677(10)u1:010�10energyequivalentmpc21:503277359(75)10�10J5:010�8inMeV938:272013(23)MeV2:510�8proton-electronmassratiomp=me1836:15267247(80)4:310�10proton-muonmassratiomp=mm8:88024339(23)2:510�8proton-taumassratiomp=mt0:528012(86)1:610�4proton-neutronmassratiomp=mn0:99862347824(46)4:610�10protonchargetomassquotiente=mp9:57883392(24)107Ckg�12:510�8protonmolarmassNAmpM(p),Mp1:00727646677(10)10�3kgmol�11:010�10protonComptonwavelengthh=mpcC;p1:3214098446(19)10�15m1:410�9C;p=2p C;p0:21030890861(30)10�15m1:410�9protonrmschargeradiusRp0:8768(69)10�15m7:810�3protonmagneticmomentp1:410606662(37)10�26JT�12:610�8toBohrmagnetonratiop=B1:521032209(12)10�38:110�9tonuclearmagnetonratiop=N2:792847356(23)8:210�9protong-factor2p=Ngp5:585694713(46)8:210�9proton-neutronmagneticmomentratiop=n�1:45989806(34)2:410�7shieldedprotonmagneticmoment0p1:410570419(38)10�26JT�12:710�8(H2O,sphere,25C)toBohrmagnetonratio0p=B1:520993128(17)10�31:110�8tonuclearmagnetonratio0p=N2:792775598(30)1:110�8protonmagneticshieldingcorrection1�0p=p0p25:694(14)10�65:310�4(H2O,sphere,25C)protongyromagneticratio2p=h p2:675222099(70)108s�1T�12:610�8 p=2p42:5774821(11)MHzT�12:610�8shieldedprotongyromagneticratio20p=h 0p2:675153362(73)108s�1T�12:710�8(H2O,sphere,25C) 0p=2p42:5763881(12)MHzT�12:710�8Neutron,nneutronmassmn1:674927211(84)10�27kg5:010�8inu,mn=Ar(n)u(neutronrelativeatomicmasstimesu)1:00866491597(43)u4:310�10energyequivalentmnc21:505349505(75)10�10J5:010�8inMeV939:565346(23)MeV2:510�8Page4 From:http://physics.nist.gov/constants FundamentalPhysicalConstants—ExtensiveListingRelativestd.QuantitySymbolValueUnituncert.ur inu,mt=Ar(t)u(tritonrelativeatomicmasstimesu)3:0155007134(25)u8:310�10energyequivalentmtc24:50038703(22)10�10J5:010�8inMeV2808:920906(70)MeV2:510�8triton-electronmassratiomt=me5496:9215269(51)9:310�10triton-protonmassratiomt=mp2:9937170309(25)8:410�10tritonmolarmassNAmtM(t);Mt3:0155007134(25)10�3kgmol�18:310�10tritonmagneticmomentt1:504609361(42)10�26JT�12:810�8toBohrmagnetonratiot=B1:622393657(21)10�31:310�8tonuclearmagnetonratiot=N2:978962448(38)1:310�8tritong-factor2t=Ngt5:957924896(76)1:310�8triton-electronmagneticmomentratiot=e�1:620514423(21)10�31:310�8triton-protonmagneticmomentratiot=p1:066639908(10)9:810�9triton-neutronmagneticmomentratiot=n�1:55718553(37)2:410�7Helion,hhelionmass6mh5:00641192(25)10�27kg5:010�8inu,mh=Ar(h)u(helionrelativeatomicmasstimesu)3:0149322473(26)u8:610�10energyequivalentmhc24:49953864(22)10�10J5:010�8inMeV2808:391383(70)MeV2:510�8helion-electronmassratiomh=me5495:8852765(52)9:510�10helion-protonmassratiomh=mp2:9931526713(26)8:710�10helionmolarmassNAmhM(h);Mh3:0149322473(26)10�3kgmol�18:610�10shieldedhelionmagneticmoment0h�1:074552982(30)10�26JT�12:810�8(gas,sphere,25C)toBohrmagnetonratio0h=B�1:158671471(14)10�31:210�8tonuclearmagnetonratio0h=N�2:127497718(25)1:210�8shieldedheliontoprotonmagneticmomentratio0h=p�0:761766558(11)1:410�8(gas,sphere,25C)shieldedheliontoshieldedprotonmagneticmomentratio0h=0p�0:7617861313(33)4:310�9(gas/H2O,spheres,25C)shieldedheliongyromagneticratio2j0hj=h 0h2:037894730(56)108s�1T�12:810�8(gas,sphere,25C) 0h=2p32:43410198(90)MHzT�12:810�8Alphaparticle,aalphaparticlemassma6:64465620(33)10�27kg5:010�8inu,ma=Ar(a)u(alphaparticlePage6 From:http://physics.nist.gov/constants 4BasedontheratioofthemassesoftheWandZbosonsmW=mZrecommendedbytheParticleDataGroup(Yao,etal.,2006).Thevalueforsin2Wtheyrecommend,whichisbasedonaparticularvariantofthemodiedminimalsubtraction( MS)scheme,issin2^W(MZ)=0:23122(15).5Thisandallothervaluesinvolvingmtarebasedonthevalueofmtc2inMeVrecommendedbytheParticleDataGroup(Yao,etal.,2006),butwithastandarduncertaintyof0:29MeVratherthanthequoteduncertaintyof�0:26MeV,+0:29MeV.6Thehelion,symbolh,isthenucleusofthe3Heatom.7ThenumericalvalueofFtobeusedincoulometricchemicalmeasurementsis96485:3401(48)[5:010�8]whentherelevantcurrentismea-suredintermsofrepresentationsofthevoltandohmbasedontheJosephsonandquantumHalleffectsandtheinternationallyadoptedconventionalvaluesoftheJosephsonandvonKlitzingconstantsKJ�90andRK�90giveninthe“Adoptedvalues”table.8TheentropyofanidealmonoatomicgasofrelativeatomicmassArisgivenbyS=S0+3 2RlnAr�Rln(p=p0)+5 2Rln(T=K):Page8