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Physics of a sextet quark sector

Journal Article · · Physical Review. D, Particles Fields
 [1]
  1. Argonne National Laboratory, 9700 South Cass, Illinois 60439 (United States)
Electroweak symmetry breaking may be a consequence of color sextet quark chiral symmetry breaking. A special solution of QCD is involved, with a high-energy S-Matrix that can be constructed 'semiperturbatively' via the chiral anomaly and Reggeon diagrams. An infrared fixed point and color superconductivity are crucial components of the construction. Infinite-momentum physical states contain both quarks and a universal 'anomalous wee gluon' component, and the spectrum is more limited than is required by confinement and chiral symmetry breaking. The Pomeron is approximately a Regge pole and the Critical Pomeron describes asymptotic cross sections. The strong coupling of the Pomeron to the electroweak sector could produce large x and Q{sup 2} events at HERA, and vector boson pairs at Fermilab. Further evidence for the sextet sector at Fermilab would be a large E{sub T} jet excess, due in part to the nonevolution of {alpha}{sub s}, and other phenomena related to the possibility that top quark production is due to the {eta}{sub 6}. The sextet proton and neutron are the only new baryonic states. Sextet states dominate high-energy hadronic cross sections and stable sextet neutrons could produce both dark matter and ultrahigh energy cosmic rays. The cosmic ray spectrum knee suggests the effective sextet threshold is between Fermilab and LHC energies, with large cross-section effects expected at the LHC. Jet and vector boson cross sections will be very much larger than expected, and sextet baryons should also be produced. Double Pomeron produced states could provide definitive evidence for the existence of the sextet sector in the initial low luminosity running.
OSTI ID:
20711277
Journal Information:
Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English