Hν(1)⁡(z)=Γ⁡(12-ν)⁢(12⁢z)νπ32⁢ⅈ⁢∫1+ⅈ⁢∞(1+)ⅇⅈ⁢z⁢t⁢(t2-1)ν-12⁢ⅆ⁡t,