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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Lattice Evidence that Scalar Glueballs Are Small
Ryan Abbott1, Daniel C Hackett2, Dimitra A Pefkou3,4
1Massachusetts Institute of Technology, Center for Theoretical Physics-A Leinweber Institute, Cambridge, Massachusetts 02139, USA.
None:
This Letter reports the first calculation of the gravitational form factors (GFFs) of the scalar glueball, performed via lattice field theory in Yang-Mills theory at a single lattice spacing. The glueball GFFs are compared with those of other hadrons as determined in previous lattice calculations, providing strong indications that glueballs have a different gluonic structure than typical hadronic states. A mass radius of 0.263(31) fm is predicted, supporting previous suggestions that the scalar glueball is significantly smaller than other hadrons.
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