197 research outputs found
On bound states of multiple t-quarks due to Higgs exchange
Froggatt, Nielsen et al suggested that the Higgs boson exchange between top
quarks produces enough attraction to generate their multiple bound states.
Furthermore they claimed that the system of 6 top and 6 anti-top quarks is
bound so strongly that the binding energy nearly compensates the masses of
t-quarks, making it very light. We calculated the energy of such states more
accurately, variationally and by self-consistent mean field approximation, and
found that these state are weakly bound for massless Higgs boson and unbound
with the account for its mass.Comment: 3 page
Searches for New Particles Including Dark Matter with Atomic, Molecular and Optical Systems
New particles can manifest their effects in many settings, ranging from
effects on sub-atomic to galactic length scales. The nature of these effects
depends on the specific particles and their non-gravitational interactions. In
this chapter, we give a brief overview of how atomic, molecular and optical
systems can be used to search for new particles. To illustrate the basic
principles behind these methods, we focus on the simplest class of particles,
namely new spinless bosons.Comment: 13 pages, 6 figures, Invited chapter for the book `Springer Handbook
of Atomic, Molecular, and Optical Physics', edited by Gordon W. F. Drake,
Springer, 201
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