Quark condensation in quantum chromodynamics

Quark condensation in quantum chromodynamics
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量子色动力学中的夸克凝聚

DOI:
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发表时间:
1979
期刊:
影响因子:
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通讯作者:
J. Mandula
J. Mandula
中科院分区:
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文献类型:
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作者:
J. Finger;D. Horn;J. Mandula

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在有限Fock空间近似(LFSA)下,我们认为,如果量子色动力学(QCD)的运行耦合常数超过1阶的临界值,真空就成为夸克-反夸克对的凝聚。为了计算临界耦合常数,我们使用了梅林变换技术,这首先是通过薛定谔方程问题来说明的。然后,我们使用LFSA将其应用于标量和旋量QED以及QCD。
Working within a limited Fock-space approximation (LFSA), we argue that if the running coupling constant of quantum chromodynamics (QCD) exceeds a critical value of order 1 the vacuum becomes a condensate of quark-antiquark pairs. To evaluate the critical coupling constant we use a Mellin-transform technique which is first illustrated with a Schroedinger equation problem. We then apply it to scalar and spinor QED, as well as to QCD, using the LFSA.