Improved vector and scalar masses in the massive Schwinger model

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Improved vector and scalar masses in the massive Schwinger model

The lowest (" vector ") and next-lowest (" scalar ") bound-state masses of the massive Schwinger model have been determined recently to a very high accuracy numerically on the lattice. Therefore, improved results for these bound-state masses from analytical calculations are of some interest. Here, we provide such improved results by employing both standard and renormal-ordered (fermion) mass pe...

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ژورنال

عنوان ژورنال: Physics Letters B

سال: 2003

ISSN: 0370-2693

DOI: 10.1016/s0370-2693(03)00051-0