Table 1.

Summary of Input Parameters and Prior Ranges

Quantity	Symbol	Prior range	Prior type
Propagation model parameters ΘP
Proton normalization (10−9 cm2 sr−1s−1 MeV−1)	N p	[2, 8]	Uniform
Diffusion coefficienta (1028 cm2 s−1)	D 0	[1, 12]	Uniform
Rigidity power-law index	δ	[0.1, 1.0]	Uniform
Alfvén speed (km s−1)	ν Alf	[0, 50]	Uniform
Diffusion zone height (kpc)	zh	[0.5, 20.0]	Uniform
Rigidity of first injection break (104 MV)	ρ br	[1, 30]	Uniform
Nucleus injection index below ρbr	ν 0	[1.00, 2.50]	Uniform
Nucleus injection index above ρbr	ν 1	[ν0, 3.00]	Uniform
Nucleus injection index above 220 GV	ν 2	[1.5, ν1]	Uniform
Difference between p and heavier inj. indices	δ ν	[0.0, 1.0]	Uniform
Injection abundance parameters ΘXa
Proton normalization (10−9 cm2 sr−1s−1 MeV−1)	N p	[2, 8]	Uniform
Helium	X He	[0.1, 2]×105	Uniform
Carbon	X C	[0.1, 6]×103	Uniform
Nitrogen	X N	[0.1, 5]×102	Uniform
Oxygen	X O	[0.1, 10]×103	Uniform
Neon	X Ne	[0.0, 1]×103	Uniform
Sodium	X Na	[0.0, 5]×102	Uniform
Magnesium	X Mg	[0.0, 1.5]×103	Uniform
Aluminum	X Al	[0.0, 5]×102	Uniform
Silicon	X Si	[0.0, 1.5]×105	Uniform
Experimental nuisance parameters
Modulation parameters ϕ (MV)			Log-normal priorb
HEAO-3	m HEAO–3		[0, 1250]
ACE	m ACE		[0, 1125]
CREAM	m CREAM		Fixed (no modulation)
ISOMAX	m ISOMAX		[0, 1075]
PAMELA	m PAMELA		[0, 1000]
Variance rescaling parameters (j = 1 ,…, 5)	log τj	[−1.5, 0.0]	Log-uniform on log τj

Notes.

^aThe hydrogen abundance is fixed to X_H ≡ 1.06 × 10⁶.

^bWe use a log-normal distribution, where σ = 50% of the central value. Quoted limits correspond to 3σ.