TOWARDS RELIABLE CALCULATIONS OF THE CORRELATION FUNCTION
TOWARDS RELIABLE CALCULATIONS OF THE CORRELATION FUNCTION
复制标题
实现相关函数的可靠计算
DOI：
10.1142/s0218301307009221
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
S. Mrówczyński
中科院分区：
文献类型：
--
作者：
Radosław Maj;S. Mrówczyński
在有限寿命各向异性粒子源的一般情况下，计算了两个全同π介子通过库仑势相互作用的关联函数。考虑了晕效应作为大空间扩展的附加粒子源。由于库仑相互作用，晕的影响不仅限于很小的相对动量，但它影响的相关函数在一个相对较大的区域。详细讨论了相对论效应，并指出计算必须在质点对质心系中进行，在质心系中，质点相对运动的（非相对论）波函数是有意义的。的Bowler-Sinyukov程序，以消除库仑相互作用的测试，它被证明显着低估了源的寿命。
The correlation function of two identical pions interacting via Coulomb potential is computed for a general case of anisotropic particle's source of finite life time. The effect of halo is taken into account as an additional particle's source of large spatial extension. Due to the Coulomb interaction, the effect of halo is not limited to very small relative momenta but it influences the correlation function in a relatively large domain. The relativistic effects are discussed in detail and it is argued that the calculations have to be performed in the center-of-mass frame of particle's pair where the (nonrelativistic) wave function of particle's relative motion is meaningful. The Bowler–Sinyukov procedure to remove the Coulomb interaction is tested and it is shown to significantly underestimate the source's life time.
影响因子：
8.6
作者：
Adler, SS;Afanasiev, S;Zolin, L
通讯作者：
Zolin, L