Article
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Symbol
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Status
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NIST reference
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Link
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Gold Book reference
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alpha particle mass
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mα
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mal}}
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atomic mass constant
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mu
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?u}}
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[1]
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{{GoldBookRef|title=atomic mass constant|file=A00497.html}}
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Avogadro constant
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NA
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?na}}
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[2]
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{{GoldBookRef|title=Avogadro constant|file=A00543.html}}
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Bohr magneton
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µB
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mub}}
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[3]
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{{GoldBookRef|title=Bohr magneton|file=B00692.html}}
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Bohr radius
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a0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?bohrrada0}}
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[4]
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{{GoldBookRef|title=Bohr radius|file=B00693.html}}
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Boltzmann constant
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k
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?k}}
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[5]
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{{GoldBookRef|title=Boltzmann constant|file=B00695.html}}
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characteristic impedance of vacuum
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Z0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?z0}}
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classical electron radius
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re
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?re}}
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Compton wavelength
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λC
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?ecomwl}}
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conductance quantum
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G0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?conqu2e2sh}}
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deuteron g factor
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gd
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gdn}}
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deuteron magnetic moment
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µd
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mud}}
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deuteron mass
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md
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?md}}
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deuteron rms charge radius
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rd
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?rd}}
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electric constant
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ε0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?ep0}}
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electron g factor
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ge
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gem}}
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electron gyromagnetic ratio
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γe
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gammae}}
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electron magnetic moment
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µe
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?muem}}
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electron magnetic moment anomaly
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ae
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?ae}}
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electron mass
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me
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?me}}
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[6]
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{{GoldBookRef|title=electron rest mass|file=E02008.html}}
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elementary charge
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e
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?e}}
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[7]
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{{GoldBookRef|title=elementary charge|file=E02032.html}}
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Faraday constant
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F
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?f}}
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[8]
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{{GoldBookRef|title=Faraday constant|file=F02325.html}}
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Fermi coupling constant
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GF/(ħc0)³
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gf}}
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fine-structure constant
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α
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?alph}}
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[9]
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{{GoldBookRef|title=fine structure constant, α|file=F02389.html}}
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first radiation constant
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c1
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?c11strc}}
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[10]
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{{GoldBookRef|title=radiation constants|file=R05051.html}}
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Hartree energy
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Eh
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?hr}}
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[11]
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{{GoldBookRef|title=Hartree energy|file=H02748.html}}
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helion mass
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mh
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mh}}
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Josephson constant
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KJ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?kjos}}
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magnetic constant
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µ0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mu0}}
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magnetic flux quantum
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Φ0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?flxquhs2e}}
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molar gas constant
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R
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?r}}
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[12]
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{{GoldBookRef|title=gas constant|file=G02579.html}}
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molar volume of ideal gas
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Vm
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mvol}}
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muon Compton wavelength
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λC,µ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mcomw}}
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muon g factor
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gµ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gmum}}
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muon magnetic moment
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µµ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mumum}}
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muon magnetic moment anomaly
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aµ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?amu}}
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muon mass
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mµ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mmu}}
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neutron Compton wavelength
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λC,n
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?ncomw}}
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neutron g factor
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gn
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gnn}}
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neutron gyromagnetic ratio
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γn
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?cuu}}
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neutron magnetic moment
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µn
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?munn}}
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neutron mass
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mn
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mn}}
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[13]
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{{GoldBookRef|title=neutron rest mass|file=N04120.html}}
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Newtonian constant of gravitation
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G
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?bg}}
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[14]
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{{GoldBookRef|title=gravitational constant|file=G02695.html}}
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nuclear magneton
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µN
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mun}}
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[15]
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{{GoldBookRef|title=nuclear magneton|file=N04236.html}}
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Planck constant
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h
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?h}}
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[16]
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{{GoldBookRef|title=Planck constant|file=P04685.html}}
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Planck length
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lP
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?plkl}}
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Planck mass
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mP
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?plkm}}
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Planck temperature
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TP
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?plktmp}}
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Planck time
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tP
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?plkt}}
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proton Compton wavelength
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λC,p
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?pcomw}}
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proton g factor
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gP
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gp}}
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proton gyromagnetic ratio
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γp
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gammap}}
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[17]
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{{GoldBookRef|title=proton magnetogyric ratio|file=P04912.html}}
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proton magnetic moment
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µp
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mup}}
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[18]
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{{GoldBookRef|title=proton magnetic moment|file=P04911.html}}
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proton magnetic shielding correction
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σ'p
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?sigmapp}}
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proton mass
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mp
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mp}}
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[19]
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{{GoldBookRef|title=proton rest mass|file=P04914.html}}
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proton rms charge radius
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rp
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?rp}}
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quantum of circulation
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h/2me
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?qucirchs2me}}
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Rydberg constant
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R∞
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?ryd}}
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[20]
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{{GoldBookRef|title=Rydberg constant|file=R05430.html}}
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Sackur-Tetrode constant
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S0/R
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?s0sr}}
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[21]
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{{GoldBookRef|title=Sackur–Tetrode constant|file=S05442.html}}
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second radiation constant
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c2
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?c22ndrc}}
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[22]
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{{GoldBookRef|title=radiation constants|file=R05051.html}}
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shielded helion gyromagnetic ratio
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γ'h
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gammahp}}
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shielded helion magnetic moment
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µ'h
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?muhp}}
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shielded proton gyromagnetic ratio
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γ'p
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gammapp}}
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shielded proton magnetic moment
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µ'p
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mupp}}
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speed of light in vacuum
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c0
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?c0}}
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Stefan-Boltzmann constant
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σ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?sigma}}
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[23]
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{{GoldBookRef|title=Stefan–Boltzmann constant|file=S05964.html}}
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tau Compton wavelength
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λC,τ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?tcomw}}
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tau mass
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mτ
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mtau}}
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Thomson cross section
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σe
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?sigmae}}
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triton g factor
|
gt
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?gtn}}
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triton magnetic moment
|
µt
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mut}}
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triton mass
|
mt
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?mt}}
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von Klitzing constant
|
RK
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?rk}}
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weak mixing angle
|
sin²θW
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?sin2th}}
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Wien wavelength displacement law
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b
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{{CODATA|url=http://physics.nist.gov/cgi-bin/cuu/Value?bwien}}
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