Giles Barr: Publications

Measurement of the decay rate and form factor parameter αK* in the decay KL → e⁺e^-γ

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 458:4 (1999) 553-563

Authors:

V Fanti, A Lai, L Musa, D Marras, A Nappi, B Hay, RW Moore, KN Moore, DJ Munday, MD Needham, MA Parker, TO White, SA Wotton, G Barr, G Bocquet, J Bremer, A Ceccucci, D Cundy, N Doble, W Funk, L Gatignon, A Gianoli, A Gonidec, G Govi, P Grafström, W Kubischta, A Lacourt, S Luitz, G Kesseler, JP Matheys, A Norton, S Palestini, B Panzer-Steindel, D Schinzel, H Taureg, M Velasco, O Vossnack, H Wahl, G Wirrer, V Kekelidze, A Mestvirishvili, G Tatishvili, I Potrebenikov, A Tkatchev, A Zinchenko, O Boyle, VJ Martin, IG Knowles, HLC Parsons, P Dalpiaz, J Duclos, PL Frabetti, M Martini, F Petrucci, M Porcu, M Savrié, A Bizzeti, M Calvetti, G Collazuol, G Graziani, E Iacopini, M Lenti, A Michetti, HG Becker, H Blümer, P Buchholz, D Coward, C Ebersberger, H Fox, A Kalter, K Kleinknecht, U Koch, L Köpke, B Renk, J Scheidt, J Schmidt, V Schönharting, Y Schué, R Wilhelm, A Winhart, M Wittgen, JC Chollet, S Crépé, L Iconomidou-Fayard, L Fayard, J Ocariz, G Unal, D Vattolo, I Wingerter, G Anzivino, P Cenci, P Lubrano, M Pepe, B Gorini, P Calafiura, R Carosi, C Cerri, M Cirilli, F Costantini, R Fantechi

Abstract:

The decay rate of the neutral K meson KL → e+e-γ has been measured with the NA48 detector at the CERN SPS. A total of 6864 events has been observed with an estimated background of 10 events. The branching ratio is Γ(KL → e+e-γ)/Γ(KL → all) = (1.06 ± 0.02stat ± 0.02sys ± 0.04calc) × 10-5 The parameter αK* describing the relative strength of the two contributing amplitudes to this decay through intermediate pseudoscalar or vector mesons was measured to be αK* = -0.36 ± 0.06stat ± 0.02sys. © 1999 Published by Elsevier Science B.V. All rights reserved.

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The NA48 LKr calorimeter readout electronics

Institute of Electrical and Electronics Engineers (IEEE) (1999) 110-115

Authors:

A Gianoli, F Bal, G Barr, P Brodier-Youstone, P Buchholz, A Ceccucci, C Cerri, A Chlopik, F Costantini, R Fantechi, E Formenti, W Funk, S Giudici, B Gorini, Z Guzik, B Hallgren, Y Kozhevnikov, W Iwansky, C de la Taille, A Lacourt, G Laverriere, C Ljuslin, L Mannelli, G Martin-Chassa, M Martini, A Papi, N Seguin-Moseau, M Sozzi, JC Tarle, M Velasco, O Vossnack, H Wahl, M Ziolkowsky

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The atmospheric neutrino flavor ratio from a 3.9 fiducial kiloton-year exposure of Soudan 2

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 449:1-2 (1999) 137-144

Authors:

WWM Allison, GJ Alner, DS Ayres, G Barr, WL Barrett, C Bode, PM Border, CB Brooks, JH Cobb, RJ Cotton, H Courant, DM Demuth, TH Fields, HR Gallagher, C Garcia-Garcia, MC Goodman, R Gran, T Joffe-Minor, T Kafka, SMS Kasahara, W Leeson, PJ Litchfield, NP Longley, WA Mann, ML Marshak, RH Milburn, WH Miller, L Mualem, A Napier, WP Oliver, GF Pearce, EA Peterson, DA Petyt, LE Price, K Ruddick, M Sanchez, J Schneps, MH Schub, R Seidlein, A Stassinakis, JL Thron, V Vassiliev, G Villaume, S Wakely, D Wall, N West, UM Wielgosz

Abstract:

We report a measurement of the atmospheric neutrino flavor ratio, R, using a sample of quasi-elastic neutrino interactions occurring in an iron medium. The flavor ratio (tracks/showers) of atmospheric neutrinos in a 3.9 fiducial kiloton-year exposure of Soudan 2 is 0.64 ± 0.11(stat.) ± 0.06(syst.) of that expected. Important aspects of our main analysis have been checked by carrying out two independent, alternative analyses; one is based upon automated scanning, the other uses a multivariate approach for background subtraction. Similar results are found by all three approaches. © 1999 Elsevier Science B.V. All rights reserved.

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A measurement of the transverse polarization of Lambda-hyperons produced in inelastic pN-reactions at 450 GeV proton energy

6 (1999) 265-269

Authors:

V Fanti, A Lai, L Musa, A Nappi, MG Setzu, RW Moore, DJ Munday, MA Parker, SF Takach, TO White, G Barr, G Bocquet, J Bremer, A Ceccucci, J Cogan, D Cundy, N Doble, G Fischer, W Funk, L Gatignon, A Gianoli, A Gonidec, P Grafstrom, W Kubischta, V Marzulli, G Kesseler, JP Matheys, A Norton, S Palestini, B Pazer-Steindel, D Schinzel, H Taureg, M Velasco, O Vossnack, H Wahl, V Kekelidze, I Kojevnikov, Y Potrebenikov, P Hristov, G Tatishvili, A Tkatchev, L Bertolotto, O Boyle, B Hay, NE McKay, G Oakland, H Parsons, KJ Peach, C Talamonti, A Walker, P Dalpiaz, J Duclos, A Formica, PL Frabetti, M Martini, F Petrucci, M Porcu, F Rossi, M Savrie, C Simani, A Bizzeti, M Calvetti, M Lenti, A Michetti, HG Becker, T Beier, H Blumer, P Buchholz, D Coward, C Ebersberger, A Kalter, K Kleinknecht, U Koch, L Kopke, F Leber, S Luitz, B Renk, J Scheidt, J Schmidt, V Schonharting, R Wilhelm, O Zeitnitz, JC Chollet, S Crepe, L Fayard, L Iconomidou-Fayard, J Ocariz, G Unal, G Anzivino, P Cenci, P Lubrano, M Pepe, P Calafiura, R Carosi, R Casali, C Cerri, F Costantini, R Fantechi, S Giudici, B Gorini

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A new measurement of direct CP violation in two pion decays of the neutral kaon

465 (1999) 335-348

Authors:

V Fanti, A Lai, D Marras, L Musa, AJ Bevan, TJ Gershon, B Hay, RW Moore, KN Moore, DJ Munday, MD Needham, MA Parker, SF Takach, TO White, SA Wotton, G Barr, H Blumer, G Bocquet, J Bremer, A Ceccucci, J Cogan, D Cundy, N Doble, W Funk, L Gatignon, A Gianoli, A Gonidec, G Govi, P Grafstrom, G Kesseler, W Kubischta, A Lacourt, S Luitz, JP Matheys, A Norton, S Palestini, B Panzer-Steindel, B Peyaud, D Schinzel, H Taureg, M Velasco, O Vossnack, H Wahl, G Wirrer, A Gaponenko, V Kekelidze, D Madigojine, A Mestvirishvili, Y Potrebenikov, G Tatishvili, A Tkatchev, A Zinchenko, L Bertolotto, O Boyle, IG Knowles, VJ Martin, HLC Parsons, KJ Peach, C Talamonti, M Contalbrigo, P Dalpiaz, J Duclos, A Formica, PL Frabetti, M Martini, F Petrucci, M Savrie, A Bizzeti, M Calvetti, G Collazuol, G Graziani, E Iacopini, M Lenti, A Michetti, HG Becker, P Buchholz, D Coward, C Ebersberger, H Fox, A Kalter, K Kleinknecht, U Koch, L Kopke, B Renk, J Scheidt, J Schmidt, V Schonharting, Y Schue, R Wilhelm, M Wittgen, JC Chollet, S Crepe, L Fayard, L Iconomidou-Fayard, J Ocariz, G Unal, D Vattolo, I Wingerter-Seez, G Anzivino, F Bordacchini

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Giles Barr

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Measurement of the decay rate and form factor parameter αK* in the decay KL → e⁺e^-γ

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Abstract:

The NA48 LKr calorimeter readout electronics

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The atmospheric neutrino flavor ratio from a 3.9 fiducial kiloton-year exposure of Soudan 2

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Abstract:

A measurement of the transverse polarization of Lambda-hyperons produced in inelastic pN-reactions at 450 GeV proton energy

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A new measurement of direct CP violation in two pion decays of the neutral kaon

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Giles Barr

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Measurement of the decay rate and form factor parameter αK* in the decay KL → e+e-γ

Authors:

Abstract:

The NA48 LKr calorimeter readout electronics

Authors:

The atmospheric neutrino flavor ratio from a 3.9 fiducial kiloton-year exposure of Soudan 2

Authors:

Abstract:

A measurement of the transverse polarization of Lambda-hyperons produced in inelastic pN-reactions at 450 GeV proton energy

Authors:

A new measurement of direct CP violation in two pion decays of the neutral kaon

Authors:

Measurement of the decay rate and form factor parameter αK* in the decay KL → e⁺e^-γ