Giles Barr: Publications

Ultrahigh energy cosmic ray composition from surface air shower and underground muon measurements at Soudan 2

Physical Review D 52:5 (1995) 2760-2765

Authors:

NP Longley, CR Bode, PM Border, H Courant, DM Demuth, RN Gray, K Johns, SMS Kasahara, MJ Lowe, ML Marshak, WH Miller, L Mualem, EA Peterson, DM Roback, K Ruddick, DJ Schmid, MH Schub, MA Shupe, V Vassiliev, G Villaume, SJ Werkema, DS Ayres, TH Fields, HM Gallagher, MC Goodman, FV Lopez, EN May, LE Price, RV Seidlein, JL Thron, HJ Trost, JL Uretsky, WWM Allison, GD Barr, CB Brooks, JH Cobb, GL Giller, A Stassinakis, MA Thomson, N West, U Wielgosz, GJ Alner, DJA Cockerill, RJ Cotton, C Garcia-Garcia, PJ Litchfield, GF Pearce, B Ewen, T Kafka, J Kochocki, W Leeson, WA Mann, RH Milburn, A Napier, W Oliver, B Saitta, J Schneps, N Sundaralingam, WL Barrett

Abstract:

The Soudan 2 experiment has performed time-coincident cosmic ray air shower and underground muon measurements. Comparisons to Monte Carlo predictions show that such measurements can make statistically significant tests of the primary composition in the knee region of the cosmic ray spectrum. The results do not support any significant increase in the average primary mass with energy in the range of 104 TeV per nucleus. Some systematic uncertainties remain, however, particularly in the Monte Carlo modeling of the cosmic ray shower. © 1995 The American Physical Society.

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A TEST OF CHIRAL PERTURBATION-THEORY FROM THE MEASUREMENT OF THE DECAY KS- GAMMA-GAMMA

351 (1995) 579-584

Authors:

GD Barr, P Buchholz, D Cundy, N Doble, L Gatignon, P Grafstrom, R Hagelberg, H Wahl, KJ Peach, T Beier, H Blumer, D Coward, K Kleinknecht, F Lever, B Renk, HG Sander, F Scheerer, J Scheidt, J Staeck, A Wagner, E Auge, D Fournier, L Iconomidoufayard, O Perdereau, AC Schaffer, L Serin, L Bertanza, P Calafiura, M Calvetti, R Carosi, R Casali, C Cerri, I Mannelli, VM Marzulli, A Nappi, GM Pierazzini, M Punturo, M Holder, A Kreutz, M Rost, R Werthenbach

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MEASUREMENT OF THE BRANCHING RATIO OF THE DOUBLE DALITZ DECAY K-L- E(+)E(-)E(+)E(-) AND THE CP PARITY OF THE K-L-MESON

65 (1995) 361-365

Authors:

GD Barr, P Buchholz, D Cundy, N Doble, L Gatignon, P Grafstrom, R Hagelberg, H Wahl, KJ Peach, T Beier, H Blumer, D Coward, R Heinz, K Kleinknecht, F Leber, P Mayer, B Renk, H Rohrer, HG Sander, J Scheidt, J Staeck, A Wagner, E Auge, D Fournier, L Iconomidoufayard, O Perdereau, AC Schaffer, L Serin, L Bertanza, P Calafiura, M Calvetti, R Carosi, R Casali, C Cerri, I Mannelli, VM Marzulli, A Nappi, GM Pierazzini, M Holder, A Kreutz, M Rost, R Werthenbach

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SEARCH FOR THE DECAY K-L- 3-GAMMA

358 (1995) 399-404

Authors:

GD Barr, P Buchholz, D Cundy, N Doble, L Gatignon, P Grafstrom, R Hagelberg, H Wahl, KJ Peach, T Beier, H Blumer, D Coward, R Heinz, K Kleinknecht, F Leber, B Renk, H Rohrer, HG Sander, F Scheerer, J Scheidt, J Staeck, A Wagner, E Auge, D Fournier, L Iconomidoufayard, O Perdereau, AC Schaffer, L Serin, L Bertanza, P Calafiura, M Calvetti, R Carosi, R Casali, C Cerri, I Mannelli, VM Marzulli, A Nappi, GM Pierazzini, M Holder, A Kreutz, M Rost, R Werthenbach

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Search for the decay KL → π⁰π⁰γ

Physics Letters B 328:3-4 (1994) 528-534

Authors:

GD Barr, P Buchholz, D Cundy, N Doble, L Gatignon, P Grafström, R Hagelberg, HN Nelson, H Wahl, KJ Peach, T Beier, H Blümer, D Coward, R Heinz, K Kleinknecht, P Mayer, B Renk, H Rohrer, HG Sander, J Scheidt, J Staeck, A Wagner, E Augé, D Fournier, L Iconomidou-Fayard, O Perdereau, AC Schaffer, L Serin, L Bertanza, A Bigi, P Calafiura, M Calvetti, R Carosi, R Casali, C Cerri, I Mannelli, VM Marzulli, A Nappi, GM Pierazzini, M Holder, A Kreutz, M Rost, R Werthenbach

Abstract:

Data from the NA31 experiment at CERN have been used for a search for the decay mode KL → π0π0γ. After all cuts, three events remain in the signal region with an estimated background of 2.2 ± 0.9 events. The upper limit for the branching ratio of KL → π0π0γ is 5.6 × 10-6 at the 90% confidence level. © 1994.

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Giles Barr

Sub department

Ultrahigh energy cosmic ray composition from surface air shower and underground muon measurements at Soudan 2

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Abstract:

A TEST OF CHIRAL PERTURBATION-THEORY FROM THE MEASUREMENT OF THE DECAY KS- GAMMA-GAMMA

Authors:

MEASUREMENT OF THE BRANCHING RATIO OF THE DOUBLE DALITZ DECAY K-L- E(+)E(-)E(+)E(-) AND THE CP PARITY OF THE K-L-MESON

Authors:

SEARCH FOR THE DECAY K-L- 3-GAMMA

Authors:

Search for the decay KL → π⁰π⁰γ

Authors:

Abstract:

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Giles Barr

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Ultrahigh energy cosmic ray composition from surface air shower and underground muon measurements at Soudan 2

Authors:

Abstract:

A TEST OF CHIRAL PERTURBATION-THEORY FROM THE MEASUREMENT OF THE DECAY KS- GAMMA-GAMMA

Authors:

MEASUREMENT OF THE BRANCHING RATIO OF THE DOUBLE DALITZ DECAY K-L- E(+)E(-)E(+)E(-) AND THE CP PARITY OF THE K-L-MESON

Authors:

SEARCH FOR THE DECAY K-L- 3-GAMMA

Authors:

Search for the decay KL → π0π0γ

Authors:

Abstract:

Search for the decay KL → π⁰π⁰γ