Constraints on cosmic electric charge asymmetry and neutrino charge from the microwave background

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2976

Title:	Constraints on cosmic electric charge asymmetry and neutrino charge from the microwave background
Authors:	Sengupta, S Pal, B. P
Keywords:	Cosmic microwave background radiation Neutrinos
Issue Date:	Jan-1996
Publisher:	Elsevier B.V
Citation:	Physics Letters B, Vol. 365, No. 1 - 4, pp.175 - 177
Abstract:	We point out that an overall electric charge asymmetry in the universe will generate an anisotropy in the cosmic microwave background radiation (CMBR) via the Sach-Wolfe effect. From this, an upper limit on the electric charge asymmetry over a cosmological scale is found using the COBE data, which implies ΔT/T ≤ 10−4 for the CMBR. The same argument constrains the charge of degenerate neutrinos.
Description:	Restricted Access
URI:	http://hdl.handle.net/2248/2976
ISSN:	0370-2693
Appears in Collections:	IIAP Publications

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