Ariz. Rev. Stat. § 13-710 : — CRIMINAL CODESENTENCING AND IMPRISONMENT —710 - Sentence for second degree murder

A. Except as provided in section 13-705 or section 13-706, subsection A, a person who is convicted of second degree murder as defined by section 13-1104 shall be sentenced as follows: Minimum Presumptive Maximum 10 calendar years 16 calendar years 25 calendar years
B. Except as provided in section 13-704 or section 13-706, subsection A, a person who is convicted of second degree murder as defined by section 13-1104 and who has previously been convicted of second degree murder or a class 2 or 3 felony involving a dangerous offense shall be sentenced as follows: Minimum Presumptive Maximum 15 calendar years 20 calendar years 29 calendar years
C. The presumptive term imposed pursuant to subsections A and B of this section may be mitigated or aggravated pursuant to section 13-701, subsections D and E.

A.R.S. § 13-710