Glueball masses and the loop-loop correlation functions |
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| Institution: | 1. Instituto de Física, Universidade Federal do Rio de Janeiro, 21.941-972, Rio de Janeiro - RJ, Brazil;2. Departamento de Física, Colégio Pedro II, 20.921-903, Rio de Janeiro - RJ, Brazil;1. INFN Sezione di Firenze, Via G. Sansone 1, Sesto Fiorentino, Firenze, I-50019, Italia;2. Università di Pisa and INFN Sezione di Pisa, Largo Pontecorvo 3, Pisa, I-56127, Italia;3. Department of Mathematics, Faculty of Science and Engineering, Swansea University, Fabian Way, Swansea, SA1 8EN, Wales, UK;4. School of Mathematics and Hamilton Mathematics Institute, Trinity College, Dublin 2, Ireland;5. Centre for Mathematical Sciences, University of Plymouth, Plymouth, PL4 8AA, UK |
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| Abstract: | We analyse the pure gauge lattice QCD by measuring loop-loop correlation functions on a 123×32 lattice at β=5.9. We select a set of operators given by the smearing procedure. We obtain a good estimate of the mass of the 0++ state and for the string tension, and upper bounds for the masses of the 2++ and the 1+− states. |
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