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SUMMARY:Charged Q-balls in gauge mediated SUSY breaking models
DTSTART;VALUE=DATE-TIME:20151026T053400Z
DTEND;VALUE=DATE-TIME:20151026T055100Z
DTSTAMP;VALUE=DATE-TIME:20260313T201625Z
UID:indico-contribution-832@indico.icrr.u-tokyo.ac.jp
DESCRIPTION:Speakers: Jeong-Pyong Hong (Institute for Cosmic Ray Research 
 University of Tokyo)\nIt is known that after Affleck-Dine baryogenesis\, s
 patial inhomogeneities of Affleck-Dine field grow into non-topological sol
 itons called Q-balls. In gauge mediated SUSY breaking models\, sufficientl
 y large Q-balls with baryon charge are stable while Q-balls with lepton ch
 arge can always decay into leptons. For a Q-ball that carries nonzero $B$ 
 and $L$ charges\, the difference between the baryonic component and the le
 ptonic component in decay rate may induce nonzero electric charge on the Q
 -ball. This implies that charged Q-ball\, also called gauged Q-ball\, may 
 emerge in our universe. We investigate two complex scalar fields\, a baryo
 nic scalar field and a leptonic one\, in an Abelian gauge theory\, and we 
 find stable solutions of gauged Q-balls for different baryon and lepton ch
 arges. Those solutions shows that a Coulomb potential arises and the Q-bal
 l becomes electrically charged as expected. It is energetically favored th
 at some amount of leptonic component decays\, but there is an upper bound 
 on its amount due to the Coulomb force. The baryonic decay also becomes po
 ssible by virtue of electrical repulsion and we find the condition to supp
 ress it so that the charged Q-balls can survive in the universe.\n\nhttps:
 //indico.icrr.u-tokyo.ac.jp/event/23/contributions/832/
LOCATION: Room 2
URL:https://indico.icrr.u-tokyo.ac.jp/event/23/contributions/832/
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