Higgs Boson Particle Search Through Direct Production from Carbon Targets Using - KAON+ Interactions
Abstract
This dissertation will present methods used and results obtained in one variant of the H particle program on the D6 beam line of the Alternating Gradient Synchrotron (AGS) at the Brookhaven National Laboratories (BNL). The variant presented uses solid ^{12}C and CH_2 targets to study the direct H production reaction from carbon: ^{12}C(K^-, K^+)H, X by analyzing the outgoing K^+ and comparing it with the K^+^ectrum of known reactions of both free and quasi-free Xi^- production reactions p(K^-, K^+)Xi^ -, and ^{12}C(K^ -, K^+)Xi^-, Y. Free Xi^- production has been examined thoroughly and allows us to determine the resolution of our experiment. Quasi-free Xi^- production from ^ {12}C and direct H production from emulsion nuclei have been studied at KEK. The K^+ from H production are expected to be more energetic than those from quasi-free Xi^-. Identification of these high momentum K^+ is the signature sought for H production. Direct H production upper limits are quoted in fractions of the quasi-free Xi^- production to minimize theoretical uncertainties. The 90% upper limit of direct H production from ^ {12}C is observed to be (0.2-0.4)% of quasi-free Xi^- production for an H width of around 31 MeV/c^2, which corresponds to a 50 MeV/c spread in momenta of the associated K^+, for an H mass in the range of 1.85-2.19 GeV/c^2. The limits are near the theoretical estimate of the process for complex nuclei of emulsion: (0.4-0.6)%.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- January 1995
- Bibcode:
- 1995PhDT........83S
- Keywords:
-
- HIGGS BOSON;
- KAON;
- Physics: Nuclear; Physics: Elementary Particles and High Energy