Probing strongly-interacting electroweak dynamics through W{sup +}W{sup {minus}}/ZZ ratios at future e{sup +}e{sup {minus}} colliders

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The authors point out that the ratio of W{sup +}W{sup {minus}} {yields} W{sup +}W{sup {minus}} and W{sup +}W{sup {minus}} {yields} ZZ cross sections is a sensitive probe of the dynamics of electroweak symmetry breaking, in the CM energy region {radical}s{sub ww} {approx_gt} 1 TeV where vector boson scattering may well become strong. They suggest ways in which this ratio can be extracted at a 1.5 TeV e{sup +}e{sup {minus}} linear collider, using W{sup {+-}}, Z {yields} jj hadronic decays and relying on dijet mass resolution to provide statistical discrimination between W{sup {+-}} and Z. WW fusion processes studied here are ... continued below

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32 p.

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Barger, V.; Cheung, K.; Han, T. & Phillips, R.J.N. January 1, 1995.

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  • Barger, V. Univ. of Wisconsin, Madison, WI (United States). Physics Dept.
  • Cheung, K. Univ. of Texas, Austin, TX (United States). Center for Particle Physics
  • Han, T. Univ. of California, Davis, CA (United States). Physics Dept.
  • Phillips, R.J.N. Rutherford Appleton Lab., Chilton (United Kingdom)

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Description

The authors point out that the ratio of W{sup +}W{sup {minus}} {yields} W{sup +}W{sup {minus}} and W{sup +}W{sup {minus}} {yields} ZZ cross sections is a sensitive probe of the dynamics of electroweak symmetry breaking, in the CM energy region {radical}s{sub ww} {approx_gt} 1 TeV where vector boson scattering may well become strong. They suggest ways in which this ratio can be extracted at a 1.5 TeV e{sup +}e{sup {minus}} linear collider, using W{sup {+-}}, Z {yields} jj hadronic decays and relying on dijet mass resolution to provide statistical discrimination between W{sup {+-}} and Z. WW fusion processes studied here are unique for exploring scalar resonances of mass about 1 TeV and are complementary to studies via the direct channel e{sup +}e{sup {minus}} {yields} W{sup +}W{sup {minus}} for the vector and non-resonant cases. With an integrated luminosity of 200 fb{sup {minus}1}, the signals obtained are statistically significant. Comparison with a study of e{sup {minus}}e{sup {minus}} {yields} {nu}{nu}W{sup {minus}}W{sup {minus}} process is made. Enhancements of the signal rate from using a polarized electron beam, or at a 2 TeV e{sup +}e{sup {minus}} linear collider and possible higher energy {mu}{sup +}{mu}{sup {minus}} colliders, are also presented.

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32 p.

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INIS; OSTI as DE95007202

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  • Other Information: PBD: Jan 1995

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  • Other: DE95007202
  • Report No.: DOE/ER/40757--061
  • Report No.: UCD--95-2;RAL--95-003
  • Grant Number: FG03-93ER40757;FG03-91ER40674;FG02-95ER40896
  • DOI: 10.2172/28359 | External Link
  • Office of Scientific & Technical Information Report Number: 28359
  • Archival Resource Key: ark:/67531/metadc666743

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  • January 1, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Jan. 10, 2018, 3:48 p.m.

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Barger, V.; Cheung, K.; Han, T. & Phillips, R.J.N. Probing strongly-interacting electroweak dynamics through W{sup +}W{sup {minus}}/ZZ ratios at future e{sup +}e{sup {minus}} colliders, report, January 1, 1995; Austin, Texas. (digital.library.unt.edu/ark:/67531/metadc666743/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.