A high resolution detector for H{sup 0} {yields} {gamma}{gamma}

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Description

SSC detectors represent a challenging departure, both in size and precision, from currently operating detectors. In this note we enumerate some of the benefits of using high magnetic fields both to simplify the detector and improve its resolution and sensitivity. We have chosen an arrangement optimized to search for the reaction H{sup 0} {yields} {gamma}{gamma}. The arrangement also has the excellent momentum resolution for muons and electrons considered critical for the discovery of such processes as H{sup 0} {yields} Z{sup 0}Z{sup 0} {yields} {ell}{sup +}{ell}{sup {minus}}{ell}{sup +}{ell}{sup {minus}}, H{sup 0} {yields} Z{sup 0}Z{sup 0} {yields} {ell}{sup +}{ell}{sup {minus}}{ell}{sup +}{ell}{sup {minus}}, ... continued below

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8 p.

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Atiya, M.S. & Kycia, T.F. January 14, 1991.

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Description

SSC detectors represent a challenging departure, both in size and precision, from currently operating detectors. In this note we enumerate some of the benefits of using high magnetic fields both to simplify the detector and improve its resolution and sensitivity. We have chosen an arrangement optimized to search for the reaction H{sup 0} {yields} {gamma}{gamma}. The arrangement also has the excellent momentum resolution for muons and electrons considered critical for the discovery of such processes as H{sup 0} {yields} Z{sup 0}Z{sup 0} {yields} {ell}{sup +}{ell}{sup {minus}}{ell}{sup +}{ell}{sup {minus}}, H{sup 0} {yields} Z{sup 0}Z{sup 0} {yields} {ell}{sup +}{ell}{sup {minus}}{ell}{sup +}{ell}{sup {minus}}, new and narrow vector bosons, and bound states of extra generational quarks. This detection scheme represents an improvement in the H{sup 0} {yields} {gamma}{gamma} mass resolution of at least a factor of 7 beyond the best currently proposed detectors. In addition, we have a significantly improved rejection of common H{sup 0} {yields} {gamma}{gamma} backgrounds. As indeed most experiments do not exceed their initial projections, this extra factor could insure the unambiguous discovery of this decay should it indeed occur. As no reasonably realistic detector can achieve excellent detection for all physics signatures we chose to give tip on excellent hadron calorimetry. For Higgs masses between 80 and 150 GeV/c{sup 2} the Higgs decay into two photons is an excellent signature. To date, all attempts to search for this decay mode have centered on the use of electromagnetic calorimetry. We are proposing a different approach. We will convert the two photons close to the production point and measure the momenta of the electron pairs.

Physical Description

8 p.

Notes

INIS; OSTI as DE95014501

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  • Other Information: PBD: 14 Jan 1991

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  • Other: DE95014501
  • Report No.: SSCL-SR--1174
  • Grant Number: AC02-76CH00016
  • DOI: 10.2172/97199 | External Link
  • Office of Scientific & Technical Information Report Number: 97199
  • Archival Resource Key: ark:/67531/metadc792854

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  • January 14, 1991

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 6, 2016, 5:16 p.m.

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Atiya, M.S. & Kycia, T.F. A high resolution detector for H{sup 0} {yields} {gamma}{gamma}, report, January 14, 1991; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc792854/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.