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On the spectrum and string tension of U(1) lattice gauge theory in 2+1 dimensions

Abstract:
We calculate the low-lying spectra of glueballs and confining flux tubes in the U(1) lattice gauge theory in 2 + 1 dimensions. We see that up to modest lattice spacing corrections, the glueball states are consistent with being multiparticle states composed of non-interacting massive JPC = 0− − particles. We observe that the ag2 → 0 limit is, as expected, unconventional, and follows the well-known saddle-point analysis of Polyakov to a good approximation. The spectrum of closed (winding) flux tubes exhibits the presence of a massive world-sheet excitation whose mass is consistent with that of the bulk screening mass. These U(1) calculations are intended to complement existing lattice calculations of the properties of SU(N ≥ 2) and SO(N ≥ 3) gauge theories in D = 2 + 1.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/JHEP01(2019)063

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Oxford college:
All Souls College
Role:
Author


Publisher:
Springer Verlag
Journal:
Journal of High Energy Physics More from this journal
Volume:
2019
Issue:
1
Article number:
63
Publication date:
2019-01-07
Acceptance date:
2018-12-15
DOI:
EISSN:
1029-8479
ISSN:
1126-6708


Keywords:
Pubs id:
pubs:958844
UUID:
uuid:3582c664-f6eb-4b3d-a88a-f09a9cedc646
Local pid:
pubs:958844
Source identifiers:
958844
Deposit date:
2019-01-10

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