Using singular classical solutions for calculating multiparticle cross sections in field theory
Using singular classical solutions for calculating multiparticle cross sections in field theory
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使用奇异经典解计算场论中的多粒子横截面
DOI：
10.1007/bf02575488
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发表时间：
1998
影响因子：
1
通讯作者：
Fedor Bezrukov
中科院分区：
文献类型：
--
作者：
Fedor Bezrukov
介绍了一种将 ψ4 理论中多粒子树截面计算问题简化为求解奇异经典欧几里得边值问题的方法。根据球谐分解以数值方式获得解，并在任意能量下找到树横截面的相应估计。数值分析与之前在高能和低能的极限情况下获得的分析结果一致。
A method for reducing the problem of calculating multiparticle tree cross sections in ϕ4 theory to the solution of a singular classical Euclidean boundary-value problem is introduced. The solutions are obtained numerically in terms of the spherical harmonic decomposition, and the corresponding estimates of the tree cross sections are found at arbitrary energies. Numerical analysis agrees with analytic results obtained earlier in the limiting cases of high and low energies.