Chung Daniel J H, Garbrecht Björn, Ramsey-Musolf Michael J, Tulin Sean
University of Wisconsin, Madison, Wisconsin 53706-1390, USA.
Phys Rev Lett. 2009 Feb 13;102(6):061301. doi: 10.1103/PhysRevLett.102.061301. Epub 2009 Feb 11.
We analyze the quantum transport equations for supersymmetric electroweak baryogenesis including previously neglected bottom and tau Yukawa interactions and show that they imply the presence of a previously unrecognized dependence of the cosmic baryon asymmetry on the spectrum of third generation quark and lepton superpartners. For fixed values of the CP-violating phases in the supersymmetric theory, the baryon asymmetry can vary in both magnitude and sign as a result of the squark and slepton mass dependence. For light, right-handed top and bottom quark superpartners, the baryon number creation can be driven primarily by interactions involving third generation leptons and their superpartners.
我们分析了超对称电弱重子生成的量子输运方程，其中包括之前被忽略的底夸克和陶轻子汤川相互作用，并表明这些方程意味着宇宙重子不对称性对第三代夸克和轻子超伴子谱存在一种之前未被认识到的依赖性。对于超对称理论中CP破坏相位的固定值，由于 squark（标量夸克）和 slepton（标量轻子）质量的依赖性，重子不对称性在大小和符号上都可能发生变化。对于轻的右手顶夸克和底夸克超伴子，重子数的产生主要可以由涉及第三代轻子及其超伴子的相互作用驱动。
