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| VOLUME 96 (2012) | ISSUE 5 | PAGE 320 |
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Charmed penguin versus BAU
A. D. Dolgov+*×°, S. I. Godunov+*∇, A. N. Rozanov
 , M. I. Vysotsky+*∇+ Alikhanov Institute of Theoretical and Experimental Physics, 117218 Moscow, Russia *Novosibirsk State University, 630090 Novosibirsk, Russia ×Dipartimento di Fisica, Universitàdegli Studi di Ferrara, I-44100 Ferrara, Italy °Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, I-44100 Ferrara, Italy ∇All-Russian Scientific Research Institute of Automatics, 101000 Moscow, Russia CPPM IN2P3-CNRS-Universite de Mediterranee, Marseille, France
Abstract
Since the Standard Model most probably cannot explain the large value of CP asymmetries recently observed in D-meson decays we propose the fourth quark-lepton generation explanation of it. As a byproduct weakly mixed leptons of the fourth generation make it possible to save the baryon number of the Universe from erasure by sphalerons. An impact of the 4th generation on BBN is briefly discussed. |