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Baryogenesis in theories with large extra spatial dimensions

Allahverdi, Rouzbeh and Enqvist, Kari and Mazumdar, Anupam and Pérez-Lorenzana, Abdel (2001) Baryogenesis in theories with large extra spatial dimensions. Nuclear Physics B, 618 (1-2). pp. 277-300. ISSN 0550-3213

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Abstract

We describe a simple and predictive scenario for baryogenesis in theories with large extra dimensions which resembles Affleck-Dine baryogenesis. The Affleck-Dine field is a complex scalar field carrying a $U(1)_{\chi}$ charge which is dynamically broken after the end of inflation. This generates an excess of $\chi$ over $\bar \chi$, which then decays into Standard Model fermions to produce an excess of baryons over anti-baryons. Our model is very constrained because the Affleck-Dine field has to be sufficiently flat during inflation. It is also a source for density fluctuations which can be tested in the coming satellite and balloon experiments.

Item Type: Article
Journal or Publication Title: Nuclear Physics B
Additional Information: LaTeX file, 24 pages, no figures
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63480
Deposited By: ep_importer_pure
Deposited On: 03 May 2013 10:21
Refereed?: Yes
Published?: Published
Last Modified: 21 Sep 2017 05:32
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63480

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