Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-06-07
JHEP 1012:001,2010
Physics
High Energy Physics
High Energy Physics - Theory
15 Pages, 1 Table, Full details and further developments of arXiv:1003.2250. This version is close to the one accepted by JHEP
Scientific paper
10.1007/JHEP12(2010)001
Noncommutative spacetimes lead to nonlocal quantum field theories (qft's) where spin-statistics theorems cannot be proved. For this reason, and also backed by detailed arguments, it has been suggested that they get corrected on such spacetimes leading to small violations of the Pauli principle. In a recent paper \cite{Pauli}, Pauli-forbidden transitions from spacetime noncommutativity were calculated and confronted with experiments. Here we give details of the computation missing from this paper. The latter was based on a spacetime $\mathcal{B}_{\chi\vec{n}}$ different from the Moyal plane. We argue that it quantizes time in units of $\chi$. Energy is then conserved only mod $\frac{2\pi}{\chi}$. Issues related to superselection rules raised by non-Pauli effects are also discussed in a preliminary manner.
Balachandran Aiyalam P.
Padmanabhan Pramod
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