χ_c粒子轻强子及双光子衰变过程中长程矩阵元的研究
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摘要
在NRQCD因子化框架下,通过χ_(c0)与χ_(c2)衰变过程对χ_c的长程矩阵元进行了研究.结果表明,相对论修正与领头阶矩阵元的大小关系满足NRQCD速度标度律.
We study the long distance matrix elements of χ_c through the χ_(c0)and χ_(c2)decay process in the frame of NRQCD.The result shows the leading order and the relativistic correction of the long distance matrix elements satisfy the NRQCD power scaling rule
We study the long distance matrix elements of χ_c through the χ_(c0)and χ_(c2)decay process in the frame of NRQCD.The result shows the leading order and the relativistic correction of the long distance matrix elements satisfy the NRQCD power scaling rule
引文
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[2]Li J Z.(PHD Thesis).On the NRQCD High-order Calculations of Decays and Productions in the P-,D-Wave Heavy Quarkonium[D].2014,Pei King University.
[3]Xu G Z,Li Y J,Liu K Y,et al.αsv 2 corrections toηc andχc Jproduction recoiled w ith a photon at e+e-colliders[J].JHEP 1410(2014)71.
[4]Ma J.,Wang Q.Corrections for two photon decays of chi(c0)and chi(c2)and color octet contributions[J].Phys.Lett.,2002,B537:233-240.
[5]Beringer J.,et al.Review of Particle Physics(RPP)[J].Phys.Rev.,2012,D86:010001.