60 research outputs found
Two-loop corrections to the topological mass term in thermal QED_3
We study the radiative corrections to the Chern-Simons mass term at two loops
in 2+1 dimensional quantum electrodynamics at finite temperature. We show that,
in contrast to the behavior at zero temperature, thermal effects lead to a non
vanishing contribution at this order. Using this result, as well as the large
gauge Ward identity for the leading parity violating terms in the static limit,
we determine the leading order parity violating effective action in this limit
at two loops, which generalizes the one-loop effective action proposed earlier.Comment: 9 pages, 2 figures (this is the version to appear in Phys. Lett. B;
includes some minor changes
Absence of higher order corrections to the non-Abelian Chern-Simons coefficient
We extend the Coleman-Hill analysis to non-Abelian Chern-Simons theories
containing a tree level topological mass term. We show, in the case of a pure
Yang-Mills-Chern-Simons theory, that there are no corrections to the
coefficient of the Chern-Simons term beyond one loop in the axial gauge. Our
arguments use constraints coming only from small gauge Ward identities as well
as the analyticity of the amplitudes, much like the proof in the Abelian case.
Some implications of this result are also discussed.Comment: 13 pages, 3 figures (final version to appear in Phys. Lett. B
Further studies on a hybrid cell-surface antigen associated with human chromosome 11 using a monoclonal antibody
A monoclonal antibody has been obtained that recognizes an antigen encoded by human chromosome 11. We present evidence that this monoclonal antibody recognizes the same or a similar antigenic activity as that previously called a 1 . Genetic information necessary for a 1 expression and recognition by the monoclonal antibody both map to 11p13 → 11pter. Mutants that have lost a 1 are no longer recognized by the monoclonal antibody. The macroglycolipid fraction of human erythrocyte membranes which contains the a 1 antigenic activity is able to convert antigen-negative Chinese hamster ovary cells into cells which are killed by the monoclonal antibody plus complement.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45556/1/11188_2005_Article_BF01543049.pd
Two-dimensional electrophoresis of human-CHO cell hybrids containing human chromosome 11
Assignment of the gene coding for phosphoribosylglycineamide formyltransferase to human chromosome 14
Three region-specific microdissection libraries for the long arm of human chromosome 2, regions q33-q35, q31-q32, and q23-q24
Construction and characterization of three region-specific microdissection libraries for human chromosome 18
Chinese hamster ovary mutant UV-1 is hypomutable and defective in a postreplication recovery process
Region-specific microdissection library and single-copy microclones for human chromosome 2p11–p13
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