Glueball masses with exponentially improved statistical precision

Michele Della Morte, Leonardo Giusti

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

We briefly review the computational strategy we have recently introduced for computing glueball masses and matrix elements, which achieves an exponential reduction of statistical errors compared to standard techniques. The global symmetries of the theory play a crucial role in the approach. We show how our previous work on parity can be generalized to other symmetries. In particular we discuss how to extract the mass of the 0++, 2++ and 0-+ lightest glueballs avoiding the exponential degradation of the signal to noise ratio. We present new numerical results and update the published ones.
OriginalsprogUdefineret/Ukendt
TidsskriftPoS LATTICE
StatusUdgivet - 14. dec. 2010

Bibliografisk note

7 pages, 2 figures. Contribution at the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy

Emneord

  • hep-lat

Citer dette

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Glueball masses with exponentially improved statistical precision. / Morte, Michele Della; Giusti, Leonardo.

I: PoS LATTICE, 14.12.2010.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Glueball masses with exponentially improved statistical precision

AU - Morte, Michele Della

AU - Giusti, Leonardo

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PY - 2010/12/14

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N2 - We briefly review the computational strategy we have recently introduced for computing glueball masses and matrix elements, which achieves an exponential reduction of statistical errors compared to standard techniques. The global symmetries of the theory play a crucial role in the approach. We show how our previous work on parity can be generalized to other symmetries. In particular we discuss how to extract the mass of the 0++, 2++ and 0-+ lightest glueballs avoiding the exponential degradation of the signal to noise ratio. We present new numerical results and update the published ones.

AB - We briefly review the computational strategy we have recently introduced for computing glueball masses and matrix elements, which achieves an exponential reduction of statistical errors compared to standard techniques. The global symmetries of the theory play a crucial role in the approach. We show how our previous work on parity can be generalized to other symmetries. In particular we discuss how to extract the mass of the 0++, 2++ and 0-+ lightest glueballs avoiding the exponential degradation of the signal to noise ratio. We present new numerical results and update the published ones.

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