Partial-wave unitarity constraints on the axigluon mass

Research output: Contribution to journalArticle

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Abstract

We consider two-body scattering processes involving axigluons (the massive color-octet gauge bosons present in all chiral-color models) and heavy quarks, especially QQ QQ (mediated by s- and t-channel axigluons A). Calculating tree-level partial-wave amplitudes aJ for these processes and demanding that aJ <1 so that perturbation theory is valid we find constraints of the form gsMQ<MA. Using collider limits on the top-quark mass we find the lower bound MA>29 GeV if the perturbative expansion for such processes is not to break down which is better than any previous limit derived directly from experiment.

Original languageEnglish (US)
Pages (from-to)834-837
Number of pages4
JournalPhysical Review D
Volume39
Issue number3
DOIs
StatePublished - Jan 1 1989

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color
octets
sands
bosons
breakdown
quarks
expansion
scattering

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

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title = "Partial-wave unitarity constraints on the axigluon mass",
abstract = "We consider two-body scattering processes involving axigluons (the massive color-octet gauge bosons present in all chiral-color models) and heavy quarks, especially QQ QQ (mediated by s- and t-channel axigluons A). Calculating tree-level partial-wave amplitudes aJ for these processes and demanding that aJ <1 so that perturbation theory is valid we find constraints of the form gsMQ<MA. Using collider limits on the top-quark mass we find the lower bound MA>29 GeV if the perturbative expansion for such processes is not to break down which is better than any previous limit derived directly from experiment.",
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Partial-wave unitarity constraints on the axigluon mass. / Robinett, Richard Wallace.

In: Physical Review D, Vol. 39, No. 3, 01.01.1989, p. 834-837.

Research output: Contribution to journalArticle

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N2 - We consider two-body scattering processes involving axigluons (the massive color-octet gauge bosons present in all chiral-color models) and heavy quarks, especially QQ QQ (mediated by s- and t-channel axigluons A). Calculating tree-level partial-wave amplitudes aJ for these processes and demanding that aJ <1 so that perturbation theory is valid we find constraints of the form gsMQ<MA. Using collider limits on the top-quark mass we find the lower bound MA>29 GeV if the perturbative expansion for such processes is not to break down which is better than any previous limit derived directly from experiment.

AB - We consider two-body scattering processes involving axigluons (the massive color-octet gauge bosons present in all chiral-color models) and heavy quarks, especially QQ QQ (mediated by s- and t-channel axigluons A). Calculating tree-level partial-wave amplitudes aJ for these processes and demanding that aJ <1 so that perturbation theory is valid we find constraints of the form gsMQ<MA. Using collider limits on the top-quark mass we find the lower bound MA>29 GeV if the perturbative expansion for such processes is not to break down which is better than any previous limit derived directly from experiment.

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