Giles Barr: Publications

Measurements of forward proton production with incident protons and charged pions on nuclear targets at the CERN proton synchroton

Physical Review C - Nuclear Physics 82:4 (2010)

Authors:

M Apollonio, A Artamonov, A Bagulya, G Barr, A Blondel, F Bobisut, M Bogomilov, M Bonesini, C Booth, S Borghi, S Bunyatov, J Burguet-Castell, MG Catanesi, A Cervera-Villanueva, P Chimenti, L Coney, E di Capua, U Dore, J Dumarchez, R Edgecock, M Ellis, F Ferri, U Gastaldi, S Giani, G Giannini, D Gibin, S Gilardoni, P Gorbunov, C Gößling, JJ Gómez-Cadenas, A Grant, JS Graulich, G Grégoire, V Grichine, A Grossheim, A Guglielmi, L Howlett, A Ivanchenko, V Ivanchenko, A Kayis-Topaksu, M Kirsanov, D Kolev, A Krasnoperov, J Martín-Albo, C Meurer, M Mezzetto, GB Mills, MC Morone, P Novella, D Orestano, V Palladino, J Panman, I Papadopoulos, F Pastore, S Piperov, N Polukhina, B Popov, G Prior, E Radicioni, D Schmitz, R Schroeter, G Skoro, M Sorel, E Tcherniaev, P Temnikov, V Tereschenko, A Tonazzo, L Tortora, R Tsenov, I Tsukerman, G Vidal-Sitjes, C Wiebusch, P Zucchelli

Abstract:

Measurements of the double-differential proton production cross-section d2σ/dpdΩ in the range of momentum 0.5 GeV/c p ≤ 8.0 GeV/c and angle 0.05 rad ≤ θ < 0.25 rad in collisions of charged pions and protons on beryllium, carbon, aluminium, copper, tin, tantalum, and lead are presented. The data were taken with the large acceptance HARP detector in the T9 beam line of the CERN Proton Synchrotron. Incident particles were identified by an elaborate system of beam detectors and impinged on a target of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using the forward spectrometer of the HARP experiment. Results are obtained for the double-differential cross-sections mainly at four incident beam momenta (3, 5, 8, and 12 GeV/c). Measurements are compared with predictions of the GEANT4 and MARS Monte Carlo generators. © 2010 The American Physical Society.

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Neutrino and antineutrino inclusive charged-current cross section measurements with the MINOS near detector

PHYSICAL REVIEW D 81:7 (2010) ARTN 072002

Authors:

P Adamson, C Andreopoulos, KE Arms, R Armstrong, DJ Auty, DS Ayres, C Backhouse, PD Jr Barnes, G Barr, WL Barrett, D Bhattacharya, M Bishai, A Blake, GJ Bock, DJ Boehnlein, D Bogert, C Bower, S Cavanaugh, JD Chapman, D Cherdack, S Childress, BC Choudhary, JAB Coelho, SJ Coleman, D Cronin-Hennessy, AJ Culling, IZ Danko, JK de Jong, NE Devenish, MV Diwan, M Dorman, AR Erwin, CO Escobar, JJ Evans, E Falk, GJ Feldman, MV Frohne, HR Gallagher, A Godley, MC Goodman, P Gouffon, R Gran, EW Grashorn, K Grzelak, A Habig, D Harris, PG Harris, J Hartnell, R Hatcher, K Heller, A Himmel, A Holin, J Hylen, GM Irwin, Z Isvan, DE Jaffe, C James, D Jensen, T Kafka, SMS Kasahara, JJ Kim, G Koizumi, S Kopp, M Kordosky, DJ Koskinen, Z Krahn, A Kreymer, K Lang, J Ling, PJ Litchfield, RP Litchfield, L Loiacono, P Lucas, J Ma, WA Mann, ML Marshak, JS Marshall, N Mayer, AM McGowan, R Mehdiyev, JR Meier, MD Messier, CJ Metelko, DG Michael, WH Miller, SR Mishra, J Mitchell, CD Moore, J Morfin, L Mualem, S Mufson, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, TC Nicholls, JP Ochoa-Ricoux, WP Oliver, T Osiecki, R Ospanov, J Paley, V Paolone, RB Patterson, Z Pavlovic, G Pawloski, GF Pearce, DA Petyt, R Pittam, RK Plunkett, A Rahaman, RA Rameika, TM Raufer, B Rebel, PA Rodrigues, C Rosenfeld, HA Rubin, VA Ryabov, MC Sanchez, N Saoulidou, J Schneps, P Schreiner, VK Semenov, P Shanahan, W Smart, C Smith, A Sousa, P Stamoulis, M Strait, N Tagg, RL Talaga, J Thomas, MA Thomson, G Tinti, R Toner, VA Tsarev, G Tzanakos, J Urheim, P Vahle, B Viren, M Watabe, A Weber, RC Webb, N West, C White, L Whitehead, SG Wojcicki, DM Wright, T Yang, M Zois, K Zhang, R Zwaska

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Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon

Astroparticle Physics (2010)

Authors:

P Adamson, C Andreopoulos, DS Ayres, C Backhouse, G Barr, WL Barrett, M Bishai, A Blake, B Bock, GJ Bock, DJ Boehnlein, D Bogert, C Bower, S Budd, S Cavanaugh, D Cherdack, S Childress, BC Choudhary, JH Cobb, JAB Coelho, SJ Coleman, L Corwin, D Cronin-Hennessy, IZ Danko, JK de Jong, NE Devenish, MV Diwan, M Dorman, CO Escobar, JJ Evans, E Falk, GJ Feldman, MV Frohne, HR Gallagher, A Godley, RA Gomes, MC Goodman, P Gouffon, R Gran, N Grant, EW Grashorn, K Grzelak, A Habig, D Harris, PG Harris, J Hartnell, R Hatcher, A Himmel, A Holin, X Huang, J Hylen, J Ilic, GM Irwin, Z Isvan, DE Jaffe, C James, D Jensen, T Kafka, SMS Kasahara, G Koizumi, S Kopp, M Kordosky, Z Krahn, A Kreymer, K Lang, G Lefeuvre, J Ling, PJ Litchfield, RP Litchfield, L Loiacono, P Lucas, WA Mann, ML Marshak, JS Marshall, N Mayer, AM McGowan, R Mehdiyev, JR Meier, MD Messier, DG Michael, WH Miller, SR Mishra, J Mitchell, CD Moore, L Mualem, S Mufson, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, TC Nicholls, WP Oliver, M Orchanian, J Paley, RB Patterson, G Pawloski, GF Pearce, EA Peterson, R Pittam, RK Plunkett, J Ratchford, TM Raufer, B Rebel, J Reichenbacher, PA Rodrigues, C Rosenfeld, HA Rubin, VA Ryabov, MC Sanchez, J Schneps, P Schreiner, VK Semenov, P Shanahan, A Sousa, M Strait, N Tagg, RL Talaga, J Thomas, MA Thomson, JL Thron, G Tinti, R Toner, G Tzanakos, J Urheim, P Vahle, B Viren, A Weber, RC Webb, C White, L Whitehead, SG Wojcicki, DM Wright, T Yang, R Zwaska

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Search for muon-neutrino to electron-neutrino transitions in MINOS.

Phys Rev Lett 103:26 (2009) 261802

Authors:

P Adamson, C Andreopoulos, KE Arms, R Armstrong, DJ Auty, DS Ayres, C Backhouse, PD Barnes, G Barr, WL Barrett, BR Becker, A Belias, RH Bernstein, M Betancourt, D Bhattacharya, M Bishai, A Blake, GJ Bock, J Boehm, DJ Boehnlein, D Bogert, C Bower, S Cavanaugh, JD Chapman, D Cherdack, S Childress, BC Choudhary, JH Cobb, JAB Coelho, SJ Coleman, D Cronin-Hennessy, AJ Culling, IZ Danko, JK de Jong, NE Devenish, MV Diwan, M Dorman, AR Erwin, CO Escobar, JJ Evans, E Falk, GJ Feldman, MV Frohne, HR Gallagher, A Godley, MC Goodman, P Gouffon, R Gran, EW Grashorn, K Grzelak, A Habig, D Harris, PG Harris, J Hartnell, R Hatcher, K Heller, A Himmel, A Holin, C Howcroft, X Huang, J Hylen, GM Irwin, Z Isvan, DE Jaffe, C James, D Jensen, T Kafka, SMS Kasahara, G Koizumi, S Kopp, M Kordosky, DJ Koskinen, Z Krahn, A Kreymer, K Lang, J Ling, PJ Litchfield, RP Litchfield, L Loiacono, P Lucas, J Ma, WA Mann, ML Marshak, JS Marshall, N Mayer, AM McGowan, R Mehdiyev, JR Meier, MD Messier, CJ Metelko, DG Michael, WH Miller, SR Mishra, J Mitchell, CD Moore, J Morfín, L Mualem, S Mufson, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, TC Nicholls, JP Ochoa-Ricoux, WP Oliver, R Ospanov, J Paley, A Para, RB Patterson, T Patzak, Z Pavlović, G Pawloski, GF Pearce, DA Petyt, R Pittam, RK Plunkett, A Rahaman, RA Rameika, TM Raufer, B Rebel, J Reichenbacher, PA Rodrigues, C Rosenfeld, HA Rubin, VA Ryabov, MC Sanchez, N Saoulidou, J Schneps, P Schreiner, P Shanahan, W Smart, C Smith, A Sousa, B Speakman, P Stamoulis, M Strait, N Tagg, RL Talaga, J Thomas, MA Thomson, JL Thron, G Tinti, R Toner, VA Tsarev, G Tzanakos, J Urheim, P Vahle, B Viren, DR Ward, M Watabe, A Weber, RC Webb, N West, C White, L Whitehead, SG Wojcicki, DM Wright, T Yang, K Zhang, H Zheng, M Zois, R Zwaska, MINOS Collaboration

Abstract:

This Letter reports on a search for nu(mu) --> nu(e) transitions by the MINOS experiment based on a 3.14x10(20) protons-on-target exposure in the Fermilab NuMI beam. We observe 35 events in the Far Detector with a background of 27+/-5(stat)+/-2(syst) events predicted by the measurements in the Near Detector. If interpreted in terms of nu(mu) --> nu(e) oscillations, this 1.5sigma excess of events is consistent with sin2(2theta(13)) comparable to the CHOOZ limit when |Delta m2|=2.43x10(-3) eV2 and sin2(2theta(23))=1.0 are assumed.

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Large-angle production of charged pions with incident pion beams on nuclear targets

Physical Review C - Nuclear Physics 80:6 (2009)

Authors:

M Apollonio, A Artamonov, A Bagulya, G Barr, A Blondel, F Bobisut, M Bogomilov, M Bonesini, C Booth, S Borghi, S Bunyatov, J Burguet-Castell, MG Catanesi, A Cervera-Villanueva, P Chimenti, L Coney, ED Capua, U Dore, J Dumarchez, R Edgecock, M Ellis, F Ferri, U Gastaldi, S Giani, G Giannini, D Gibin, S Gilardoni, P Gorbunov, C Gößling, JJ Gómez-Cadenas, A Grant, JS Graulich, G Grégoire, V Grichine, A Grossheim, A Guglielmi, L Howlett, A Ivanchenko, V Ivanchenko, A Kayis-Topaksu, M Kirsanov, D Kolev, A Krasnoperov, J Martín-Albo, C Meurer, M Mezzetto, GB Mills, MC Morone, P Novella, D Orestano, V Palladino, J Panman, I Papadopoulos, F Pastore, S Piperov, N Polukhina, B Popov, G Prior, E Radicioni, D Schmitz, R Schroeter, G Skoro, M Sorel, E Tcherniaev, P Temnikov, V Tereschenko, A Tonazzo, L Tortora, R Tsenov, I Tsukerman, G Vidal-Sitjes, C Wiebusch, P Zucchelli

Abstract:

Measurements of the double-differential π± production cross section in the range of momentum 100≤p≤800 MeV/c and angle 0.35≤θ≤2.15 rad using π± beams incident on beryllium, aluminum, carbon, copper, tin, tantalum, and lead targets are presented. The data were taken with the large-acceptance hadron production (HARP) detector in the T9 beam line of the CERN Proton Synchrotron. The secondary pions were produced by beams in a momentum range from 3 to 12.9GeV/c hitting a solid target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using a small-radius cylindrical time projection chamber placed inside a solenoidal magnet. Incident particles were identified by an elaborate system of beam detectors. Results are obtained for the double-differential cross sections d2σ/dp dθ at six incident-beam momenta. Data at 3,5,8, and 12GeV/c are available for all targets, while additional data at 8.9 and 12.9GeV/c were taken in positive particle beams on Be and Al targets, respectively. The measurements are compared with several generators of GEANT4 and the MARS Monte Carlo simulation. © 2009 The American Physical Society.

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Giles Barr

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Measurements of forward proton production with incident protons and charged pions on nuclear targets at the CERN proton synchroton

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Abstract:

Neutrino and antineutrino inclusive charged-current cross section measurements with the MINOS near detector

Authors:

Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon

Authors:

Search for muon-neutrino to electron-neutrino transitions in MINOS.

Authors:

Abstract:

Large-angle production of charged pions with incident pion beams on nuclear targets

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Measurements of forward proton production with incident protons and charged pions on nuclear targets at the CERN proton synchroton

Authors:

Abstract:

Neutrino and antineutrino inclusive charged-current cross section measurements with the MINOS near detector

Authors:

Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon

Authors:

Search for muon-neutrino to electron-neutrino transitions in MINOS.

Authors:

Abstract:

Large-angle production of charged pions with incident pion beams on nuclear targets

Authors:

Abstract: