### Resumé

Originalsprog | Udefineret/Ukendt |
---|---|

Tidsskrift | P o S - Proceedings of Science |

ISSN | 1824-8039 |

Status | Udgivet - 27. sep. 2011 |

### Bibliografisk note

Poster contribution to Lattice 2011. 7 pages, 2 tables, 2 figures### Emneord

- hep-lat

### Citer dette

*P o S - Proceedings of Science*.

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*P o S - Proceedings of Science*.

**Glueball masses from ratios of path integrals.** / Morte, Michele Della; Giusti, Leonardo.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

TY - JOUR

T1 - Glueball masses from ratios of path integrals

AU - Morte, Michele Della

AU - Giusti, Leonardo

N1 - Poster contribution to Lattice 2011. 7 pages, 2 tables, 2 figures

PY - 2011/9/27

Y1 - 2011/9/27

N2 - By generalizing our previous work on the parity symmetry, the partition function of a Yang-Mills theory is decomposed into a sum of path integrals each giving the contribution from multiplets of states with fixed quantum numbers associated to parity, charge conjugation, translations, rotations and central conjugations. Ratios of path integrals and correlation functions can then be computed with a multi-level Monte Carlo integration scheme whose numerical cost, at a fixed statistical precision and at asymptotically large times, increases power-like with the time extent of the lattice. The strategy is implemented for the SU(3) Yang-Mills theory, and a full-fledged computation of the mass and multiplicity of the lightest glueball with vacuum quantum numbers is carried out at two values of the lattice spacing (0.17 and 0.12 fm).

AB - By generalizing our previous work on the parity symmetry, the partition function of a Yang-Mills theory is decomposed into a sum of path integrals each giving the contribution from multiplets of states with fixed quantum numbers associated to parity, charge conjugation, translations, rotations and central conjugations. Ratios of path integrals and correlation functions can then be computed with a multi-level Monte Carlo integration scheme whose numerical cost, at a fixed statistical precision and at asymptotically large times, increases power-like with the time extent of the lattice. The strategy is implemented for the SU(3) Yang-Mills theory, and a full-fledged computation of the mass and multiplicity of the lightest glueball with vacuum quantum numbers is carried out at two values of the lattice spacing (0.17 and 0.12 fm).

KW - hep-lat

M3 - Tidsskriftartikel

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

SN - 1824-8039

ER -