ATLAS Offline Software
TRT_PAI_physicsConstants.h
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1 /*
2  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
3 */
4 
5 #ifndef TRT_PAI_physicsConstants_h
6 #define TRT_PAI_physicsConstants_h
7 
9 
14  const double c = 2.99792458e10;
15  const double Nav = 6.02214e23;
16  const double erg = 1.60218e-12;
17  const double mb = 1.e-18;
18  const double Me = 9.10943e-28;
19  const double MeeV = Me*(c*c)/erg;
21  const double Qe = 4.80321e-10;
22  const double r0 = Qe*Qe/Me/(c*c);
23  const double h = 1.05457e-27;
24  const double he = h*c/erg;
25  const double invlog10 = 0.434294481903252;
26 }
27 
28 #endif
TRT_PAI_physicsConstants::Nav
const double Nav
Avagadro constant
Definition: TRT_PAI_physicsConstants.h:15
TRT_PAI_physicsConstants::invlog10
const double invlog10
you guess...
Definition: TRT_PAI_physicsConstants.h:25
TRT_PAI_physicsConstants
Physics constants.
Definition: TRT_PAI_physicsConstants.h:13
ParticleConstants.h
TRT_PAI_physicsConstants::Qe
const double Qe
Electron charge{ESU}.
Definition: TRT_PAI_physicsConstants.h:21
TRT_PAI_physicsConstants::r0
const double r0
electron radius{cm}
Definition: TRT_PAI_physicsConstants.h:22
TRT_PAI_physicsConstants::Me
const double Me
Electron mass {g}
Definition: TRT_PAI_physicsConstants.h:18
TRT_PAI_physicsConstants::erg
const double erg
1 ev to erg {erg}
Definition: TRT_PAI_physicsConstants.h:16
TRT_PAI_physicsConstants::he
const double he
same in ev
Definition: TRT_PAI_physicsConstants.h:24
TRT_PAI_physicsConstants::MeeV
const double MeeV
same in ev
Definition: TRT_PAI_physicsConstants.h:19
h
TRT_PAI_physicsConstants::c
const double c
Light speed
Definition: TRT_PAI_physicsConstants.h:14
TRT_PAI_physicsConstants::mb
const double mb
1mb to cm2
Definition: TRT_PAI_physicsConstants.h:17
ParticleConstants::PDG2011::protonMassInMeV
constexpr double protonMassInMeV
the mass of the proton (in MeV)
Definition: ParticleConstants.h:71
TRT_PAI_physicsConstants::MProtonMeV
const double MProtonMeV
Proton mass in MeV
Definition: TRT_PAI_physicsConstants.h:20