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in creator/contributor: "Goodman, M. C."

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High Energy Physics Division semiannual report of research activities July 1, 1998--December 31, 1998.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period July 1, 1998--December 31, 1998.

Date: August 20, 1999

Creator: Berger, E. L.; Bodwin, G.; Drake, G.; Goodman, M. C.; Guarino, V.; Klasen, M. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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High Energy Physics division semiannual report of research activities.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of July 1, 2001 through December 31, 2001. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: August 29, 2002

Creator: Spinka, H. M.; Nodulman, L. J.; Goodman, M. C.; Repond, J.; Ayres, D. S.; Proudfoot, J. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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High Energy Physics semiannual report of research activities. July 1, 2003 - December 31, 2003.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of July 1 through December 31, 2003. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: June 2, 2004

Creator: Spinka, H. M.; Nodulman, L. J.; Goodman, M. C.; Repond, J.; Ayres, D. S.; Proudfoot, J. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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High Energy Physics Division semiannual report of research activities : July 1, 2004 - December 31, 2004.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of July 1 through December 31, 2004. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: June 3, 2005

Creator: Nodulman, L.; Repond, J.; Ayres, D. S.; Proudfoot, J.; Stanek, R.; Schlereth, J. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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High Energy Physics division semiannual report of research activities, January 1, 1998--June 30, 1998.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of January 1, 1998 through June 30, 1998. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: March 9, 1999

Creator: Ayres, D. S.; Berger, E. L.; Blair, R.; Bodwin, G. T.; Drake, G.; Goodman, M. C. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Contained [nu] events observed in Soudan 2

Atmospheric [nu][sub [mu]] and [nu][sub e] are created in cosmic ray interactions in the atmosphere, and can be detected in underground detectors. The Kamiokande and IMB water Cerenkov detectors have found fewer [nu][sub [mu]] interactions (relative to [nu][sub e]) than are expected. Results are usually expressed by the ratio: R[triple bond]([nu][sub [mu]]/[nu][sub [mu]]) measured ([nu][sub [mu]]/[nu][sub e]) predicted with R found to be less than 1. The Soudan 2 detector is an iron calorimeter… more

Date: January 1, 1993

Creator: Ambats, I.; Ayres, D. S.; Balka, L.; Barrett, W. L.; Dawson, J.; Fields, T. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Underground muon observations in the Soudan 2 detector

The Soudan 2 nucleon decay detector has recorded data since Summer 1988 using a quarter (dimensions 4 m by 8 m by 5 m high) of the eventual detector. This iron-argon time projection chamber records extensive data on each event and has excellent angular and multi-track resolution. We describe the trigger, the event analysis procedure and the current status of the detector and the underground muon data sample. 1 ref.

Date: September 11, 1989

Creator: Allison, W. W. M.; Barr, G. D.; Brooks, C. B.; Cobb, J. H.; Kirby-Gallagher, L. M.; Giles, R. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Search for AGN. nu. 's with the Soudan 2 detector

We present a preliminary null result from a search for diffuse high energy neutrino emission by Active Galactic Nuclei. The method relies on the measurement of catastrophic energy loss by high energy muons in the Soudan 2 calorimeter. A Monte Carlo calculation of the energy loss of high energy muons is described.

Date: January 1, 1992

Creator: Ambats, I.; Ayres, D. S.; Balka, L. J.; Barrett, W. L.; Brock, T.; Dawson, J. W. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Cosmic ray events in Soudan 2

The Soudan 2 detector is located at a depth of 2090 meters-water equivalent (mwe). About 2 million muon events have been recorded. Here we report on our plans to analyze them for comparison with expectations from atmospheric cosmic ray models. Plans and capabilities to analyze multiple muons and monopoles are also discussed. 3 refs., 5 figs.

Date: August 23, 1989

Creator: Allison, W. W. M.; Alner, G. J.; Ambats, I.; Ayres, D.; Balka, L.; Barr, G. D. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Contained Events in Soudan 2

A search for contained events in the Soudan 2 nucleon decay detector has been made for the initial exposure of the first quarter of the 1.1 kiloton detector. This corresponds to an exposure of 0.083 kiloton years in the fiducial volume. We observe 5 {nu}{sub mu} candidate events and 5 {nu}{sub e} candidate events. Results of Monte Carlo simulations of neutrino events and proton decay events in Soudan 2 are compared. 6 refs., 3 figs.

Date: August 23, 1989

Creator: Allison, W. W. M.; Alner, G. J.; Ambats, I.; Balka, L.; Barr, G. D.; Benjamin, D. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Surface Underground Coincidences at the Soudan Mine

A 37 m{sup 2} surface array which has been operating in coincidence with the Soudan 1 underground experiment is described. A comparison is made between measured and expected underground-surface coincident events. The surface array is used to tag'' the energy of the cosmic ray primary. Distributions of event rates and multiple muon rates as a function of energy are shown. Expected rates and plans for an enhanced array and for coincidences with Soudan 2 are also discussed. 1 ref., 6 figs.

Date: January 1, 1989

Creator: DasGupta, U.; Ambats, I.; Ayres, D.; Alner, G. J.; Balka, L.; Barr, G. D. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Underground Muons Observed in the Soudan 2 Detector From the Directions of X-Ray Sources

We report on observations of underground muons made with the Soudan 2 proton decay detector at a depth of 2090 mwe from the directions of the binaries Hercules X-1 and 1E2259+586 and the Crab pulsar.

Date: August 1, 1991

Creator: Allison, W. W. M.; Barr, G. D.; Brooks, C. B.; Cobb, J. H.; Giles, R. H.; Perkins, D. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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A search for magnetic monopoles with the Soudan 2 detector

A search for GUT magnetic monopoles has been conducted using the Soudan 2 nucleon decay detector. This detector is a fine-grained tracking calorimeter. Monopole candidates were selected on the basis of significantly higher ionization than throughgoing cosmic ray muons. Preliminary results, using data taken over approximately one year with no monopoles observed, correspond to a flux limit of 2.4 10{sup {minus}14}cm{sup {minus}2}sr{sup {minus}1}s{sup {minus}1} over a velocity range of 10{sup {min… more

Date: August 1, 1991

Creator: Allison, W. W. M.; Barr, G. D.; Brooks, C. B.; Cobb, J. H.; Kirby-Gallagher, L. M.; Giles, R. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Simultaneous Observations of Extensive Air Showers and Underground Muons at Soudan 2

We have built a small proportional tube air shower array on the surface above the Soudan 2 proton decay detector in Soudan, Minnesota, USA. This array, in coincidence with the underground detector, allows simultaneous surface and underground observations of high energy cosmic ray showers. These observations, still in their initial stages, may eventually be able to provide information about the composition of cosmic ray primaries in the ``knee`` region of the energy spectrum. 4 refs.

Date: August 1, 1991

Creator: Allison, W. W. M.; Barr, G. D.; Brooks, C. B.; Cobb, J. H.; Giles, R. H.; Perkins, D. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Status of the Soudan 2 detector experiment

The status of the Soudan 2 experiment is discussed. The detector parameters, running schedule, and physics program are presented. Limits on proton decay, the flux of highly ionizing magnetic monopoles and neutrinos from active galactic nuclei are given.

Date: June 1, 1993

Creator: Ambats, I.; Ayres, D. S.; Balka, L.; Barrett, W. L.; Dawson, J.; Fields, T. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Contained {nu} events observed in Soudan 2

Atmospheric {nu}{sub {mu}} and {nu}{sub e} are created in cosmic ray interactions in the atmosphere, and can be detected in underground detectors. The Kamiokande and IMB water Cerenkov detectors have found fewer {nu}{sub {mu}} interactions (relative to {nu}{sub e}) than are expected. Results are usually expressed by the ratio: R{triple_bond}({nu}{sub {mu}}/{nu}{sub {mu}}) measured |({nu}{sub {mu}}/{nu}{sub e}) predicted with R found to be less than 1. The Soudan 2 detector is an iron calorimete… more

Date: June 1, 1993

Creator: Ambats, I.; Ayres, D. S.; Balka, L.; Barrett, W. L.; Dawson, J.; Fields, T. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Multiple Muon Events in Soudan 2

Abstract: This is a progress report on multiple muon events recorded by the Soudan 2 detector. 6 refs.

Date: August 1, 1991

Creator: Allison, W. W. M.; Barr, G. D.; Brooks, C. B.; Cobb, J. H.; Kirby-Gallagher, L. M.; Giles, R. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Muon/electron separation for atmospheric neutrino interactions

A study has been made of the ability of the Soudan 2 nucleon decay detector to distinguish between showering and non-showering particles, utilizing several different pattern recognition techniques. This work has direct application in the determination of the {nu}{sub {mu}}/{nu}{sub e} ratio for atmospheric neutrino induced events. The results of the application of these techniques to Monte Carlo data and to calibration data from the ISIS test beam are presented.

Date: August 1, 1991

Creator: Allison, W. W. M.; Barr, G. D.; Brooks, C. B.; Cobb, J. H.; Kirby-Gallagher, L. M.; Giles, R. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Search for AGN ν`s with the Soudan 2 detector

Date: August 1, 1992

Creator: Ambats, I.; Ayres, D. S.; Balka, L. J.; Barrett, W. L.; Brock, T.; Dawson, J. W. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department