2nd Black Book - CP3-Origins
2nd Black Book - CP3-Origins
2nd Black Book - CP3-Origins
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is (almost) conformal in the infrared, while spontaneous chiral symmetry breaking seems less<br />
plausible.<br />
Mesonic spectroscopy of Minimal Walking Technicolor.<br />
Luigi Del Debbio, (Edinburgh U.) , Biagio Lucini, Agostino Patella, (Swansea U.) , Claudio Pica, (Southern<br />
Denmark U., <strong>CP3</strong>-<strong>Origins</strong>) , Antonio Rago, (Wuppertal U.) . <strong>CP3</strong>-ORIGINS-2010-12, WUB-10-06, Apr 2010.<br />
(Published Jul 1, 2010). 16pp.<br />
Published in Phys.Rev.D82:014509,2010.<br />
e-Print: arXiv:1004.3197 [hep-lat]<br />
The infrared dynamics of Minimal Walking Technicolor<br />
We studied the gauge sector of Minimal Walking Technicolor, which is an SU(2) gauge theory<br />
with nf=2 flavors of Wilson fermions in the adjoint representation. Numerical simulations are<br />
performed on lattices Nt x Ns^3, with Ns ranging from 8 to 16 and Nt=2Ns, at fixed \beta=2.25,<br />
and varying the fermion bare mass m0, so that our numerical results cover the full range of<br />
fermion masses from the quenched region to the chiral limit. We present results for the string<br />
tension and the glueball spectrum. A comparison of mesonic and gluonic observables leads to<br />
the conclusion that the infrared dynamics is given by an SU(2) pure Yang-Mills theory with a<br />
typical energy scale for the spectrum sliding to zero with the fermion mass. The typical mesonic<br />
mass scale is proportional to, and much larger than this gluonic scale. Our findings are compatible<br />
with a scenario in which the massless theory is conformal in the infrared. An analysis of<br />
the scaling of the string tension with the fermion mass towards the massless limit allows us to<br />
extract the chiral condensate anomalous dimension \gamma*, which is found to be<br />
\gamma*=0.22+-0.06.<br />
The infrared dynamics of Minimal Walking Technicolor.<br />
Luigi Del Debbio, Biagio Lucini, Agostino Patella, Claudio Pica, Antonio Rago, . <strong>CP3</strong>-ORIGINS-2010-13,<br />
WUB-10-07, Apr 2010. 29pp. Temporary entry<br />
Published in Phys.Rev.D82:014510,2010.<br />
e-Print: arXiv:1004.3206 [hep-lat]<br />
22 CP³-<strong>Black</strong> book