55 research outputs found
Antisymmetric tensor contribution to the muon g-2
We investigate the Kalb-Ramond antisymmetric tensor field as solution to the
muon problem. In particular we calculate the lowest-order Kalb-Ramond
contribution to the muon anomalous magnetic moment and find that we can fit the
new experimental value for the anomaly by adjusting the coupling without
affecting the electron anomalous magnetic moment results.Comment: 7 pages, 1 figur
Subtleties in the quasi-classical calculation of Hawking radiation
he quasi-classical method of deriving Hawking radiation is investigated. In
order to recover the original Hawking temperature one must take into account a
previously ignored contribution coming from the temporal part of the action.
This contribution plus a contribution coming from the spatial part of the
action gives the correct temperature.Comment: 6 pages revtex. Honorable Mention in 2008 GRF essay contest, typos
fixed, sign errors corrected. To be published in Special Issue of IJMP
New symmetry current for massive spin-3/2 fields
We present several new results which will be of value to theorists working
with massive spin-3/2 vector-spinor fields as found, for example, in low and
intermediate energy hadron physics and also linearized supergravity. The
general lagrangian and propagator for a vector-spinor field in d-dimensions is
given. It is shown that the observables of the theory are invariant under a
novel continuous symmetry group which is also extended to an algebra. A new
technique is developed for exploring the consequences of the symmetry and a
previously unknown conserved vector current and charge are found. The current
leads to new interactions involving spin-3/2 particles and may have important
experimental consequences.Comment: 9 pages, references updated and minor change
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