WW Scattering Parameters via Pseudoscalar Phase Shifts - INSPIRE

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WW Scattering Parameters via Pseudoscalar Phase Shifts

Thomas Appelquist
(
- Yale U.
)
,
Ron Babich
(
- Boston U.
)
,
Richard C. Brower
(
- Boston U.
)
,
Michael I. Buchoff
(
- LLNL, Livermore
)
,
Michael Cheng
(
- LLNL, Livermore
)

Jan, 2012

8 pages

Published in:

Phys.Rev.D 85 (2012) 074505

e-Print:

1201.3977 [hep-lat]

DOI:

10.1103/PhysRevD.85.074505

Report number:

FERMILAB-PUB-12-012-T,
LLNL-JRNL-499587

View in:

reference search21 citations

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Abstract: (arXiv)

Using domain-wall lattice simulations, we study pseudoscalar-pseudoscalar scattering in the maximal isospin channel for an SU(3) gauge theory with two and six fermion flavors in the fundamental representation. This calculation of the S-wave scattering length is related to the next-to-leading order corrections to WW scattering through the low-energy coefficients of the chiral Lagrangian. While two and six flavor scattering lengths are similar for a fixed ratio of the pseudoscalar mass to its decay constant, six-flavor scattering shows a somewhat less repulsive next-to-leading order interaction than its two-flavor counterpart. Estimates are made for the WW scattering parameters and the plausibility of detection is discussed.

Note:

8 pages, 6 figures

12.60.Nz
11.15.Ha
11.10.Hi
11.25.Hf
higher-order: 1
flavor: 6
gauge field theory: SU(3)
correction: higher-order
fermion: domain wall
mass: pseudoscalar

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