### Resumé

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

Tidsskrift | JHEP |

ISSN | 1126-6708 |

Status | Udgivet - 15. aug. 2001 |

### Bibliografisk note

20 pages, 5 figures. Comments about the uncertainties on improvement coefficients added### Emneord

- hep-lat

### Citer dette

*JHEP*.

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*JHEP*.

**Cutoff effects in twisted mass lattice QCD.** / Morte, M. Della; Frezzotti, R.; Heitger, J.; Sint, S.

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

TY - JOUR

T1 - Cutoff effects in twisted mass lattice QCD

AU - Morte, M. Della

AU - Frezzotti, R.

AU - Heitger, J.

AU - Sint, S.

N1 - 20 pages, 5 figures. Comments about the uncertainties on improvement coefficients added

PY - 2001/8/15

Y1 - 2001/8/15

N2 - We present a first numerical study of lattice QCD with O(a) improved Wilson quarks and a chirally twisted mass term. Renormalized correlation functions are derived from the Schroedinger functional and evaluated in an intermediate space-time volume of size 0.75^3 x 1.5 fm^4. In the quenched approximation precise results are then obtained with a moderate computational effort, allowing for a detailed study of the continuum approach. The latter is discussed in terms of observables which converge to meson masses and decay constants in the limit of large space-time volume. In the O(a) improved theory we find residual cutoff effects to be at the level of a few percent for lattice spacings of about 0.1 fm.

AB - We present a first numerical study of lattice QCD with O(a) improved Wilson quarks and a chirally twisted mass term. Renormalized correlation functions are derived from the Schroedinger functional and evaluated in an intermediate space-time volume of size 0.75^3 x 1.5 fm^4. In the quenched approximation precise results are then obtained with a moderate computational effort, allowing for a detailed study of the continuum approach. The latter is discussed in terms of observables which converge to meson masses and decay constants in the limit of large space-time volume. In the O(a) improved theory we find residual cutoff effects to be at the level of a few percent for lattice spacings of about 0.1 fm.

KW - hep-lat

M3 - Tidsskriftartikel

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

SN - 1126-6708

ER -