3D integral on trigonometric and roots












0












$begingroup$


I'm trying to calculate the following integral ($vec{R}$ is a constant vector, $m$ is a constant real number and $vec{R}cdot vec{p}$ is the usual scalar product):



$$I = int_{mathbb{R}^3} frac{d^3p}{(2pi)^3sqrt{|vec{p}|^2 + m^2}}(1 + cos{(vec{R}cdotvec{p})}) $$



I'm stuck, so if anyone could give me a little push, I'll appreciate it.










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  • $begingroup$
    where did this come from?
    $endgroup$
    – Dylan
    Dec 20 '18 at 11:04
















0












$begingroup$


I'm trying to calculate the following integral ($vec{R}$ is a constant vector, $m$ is a constant real number and $vec{R}cdot vec{p}$ is the usual scalar product):



$$I = int_{mathbb{R}^3} frac{d^3p}{(2pi)^3sqrt{|vec{p}|^2 + m^2}}(1 + cos{(vec{R}cdotvec{p})}) $$



I'm stuck, so if anyone could give me a little push, I'll appreciate it.










share|cite|improve this question











$endgroup$












  • $begingroup$
    where did this come from?
    $endgroup$
    – Dylan
    Dec 20 '18 at 11:04














0












0








0





$begingroup$


I'm trying to calculate the following integral ($vec{R}$ is a constant vector, $m$ is a constant real number and $vec{R}cdot vec{p}$ is the usual scalar product):



$$I = int_{mathbb{R}^3} frac{d^3p}{(2pi)^3sqrt{|vec{p}|^2 + m^2}}(1 + cos{(vec{R}cdotvec{p})}) $$



I'm stuck, so if anyone could give me a little push, I'll appreciate it.










share|cite|improve this question











$endgroup$




I'm trying to calculate the following integral ($vec{R}$ is a constant vector, $m$ is a constant real number and $vec{R}cdot vec{p}$ is the usual scalar product):



$$I = int_{mathbb{R}^3} frac{d^3p}{(2pi)^3sqrt{|vec{p}|^2 + m^2}}(1 + cos{(vec{R}cdotvec{p})}) $$



I'm stuck, so if anyone could give me a little push, I'll appreciate it.







calculus integration multivariable-calculus definite-integrals multiple-integral






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share|cite|improve this question













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share|cite|improve this question








edited Dec 20 '18 at 19:29







Vicky

















asked Dec 20 '18 at 3:29









VickyVicky

1557




1557












  • $begingroup$
    where did this come from?
    $endgroup$
    – Dylan
    Dec 20 '18 at 11:04


















  • $begingroup$
    where did this come from?
    $endgroup$
    – Dylan
    Dec 20 '18 at 11:04
















$begingroup$
where did this come from?
$endgroup$
– Dylan
Dec 20 '18 at 11:04




$begingroup$
where did this come from?
$endgroup$
– Dylan
Dec 20 '18 at 11:04










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