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Titolo:
Search for eV (pseudo) scalar penetrating particles in the SPS neutrino beam
Autore:
Astier, P; Autiero, D; Baldisseri, A; Baldo-Ceolin, M; Ballocchi, G; Banner, M; Bassompiene, G; Benslama, K; Besson, N; Bird, I; Blumenfeld, B; Bobisut, F; Bouchez, J; Boyd, S; Bueno, A; Bunyatov, S; Camilleri, L; Cardini, A; Cattaneo, PW; Cavasinni, V; Cervera-Villanueva, A; Collazuol, G; Conforto, G; Conta, C; Contalbrigo, M; Cousins, R; Daniels, D; Degaudenzi, H; Del Prete, T; De Santo, A; Dignan, T; Di Lella, L; Silva, EDE; Dumarchez, J; Ellis, M; Feldman, GJ; Ferrari, R; Ferrere, D; Flaminio, V; Fraternali, M; Gaillard, JM; Gangler, E; Geiser, A; Geppert, D; Gibin, D; Gninenko, SN; Godley, A; Gomez-Cadenas, JJ; Gosset, J; Gossling, C; Gouanere, M; Grant, A; Graziani, G; Guglielmi, A; Hagner, C; Hernando, J; Hubbard, D; Hurst, P; Hyett, N; Iacopini, E; Joseph, C; Juget, F; Kirsanov, MM; Klimov, O; Kokkonen, J; Kovzelev, AV; Krasnikov, NV; Krasnoperov, A; Kuznetsov, VE; Lacaprara, S; Lachaud, C; Lakic, B; Lanza, A; La Rotonda, L; Laveder, M; Letessier-Selvon, A; Levy, JM; Linssen, L; Ljubicic, A; Long, J; Lupi, A; Marchionni, A; Martelli, F; Mechain, X; Mendiburu, JP; Meyer, JP; Mezzetto, M; Mishra, SR; Moorhead, GF; Mossuz, L; Nedelec, P; Nefedov, Y; Nguyen-Mau, C; Orestano, D; Pastore, F; Peak, LS; Pennacchio, E; Pessard, H; Petti, R; Placci, A; Polesello, G; Pollmann, D; Polyarush, AY; Popov, B; Poulsen, C; Rico, J; Roda, C; Rubbia, A; Salvatore, F; Schahmaneche, K; Schmidt, B; Schmidt, T; Sevior, M; Sillou, D; Soler, FJP; Sozzi, G; Steele, D; Steininger, M; Stiegler, U; Stipcevic, M; Stolarczyk, T; Tareb-Reyes, M; Taylor, GN; Tereshchenko, V; Toropin, AN; Touchard, AM; Tovey, SN; Tran, MT; Tsesmelis, E; Ulrichs, J; Vacavant, L; Valdata-Nappi, M; Valuev, V; Vannucci, F; Varvell, KE; Veltri, M; Vercesi, V; Verkindt, D; Vieira, JM; Vinogradova, T; Volkov, SA; Weber, FV; Weisse, T; Wilson, FF; Winton, LJ; Yabsley, BD; Zaccone, H; Zioutas, K; Zuber, K; Zuccon, P;
Indirizzi:
Univ Paris 06, LPNHE, Paris, France Univ Paris 06 Paris FranceUniv Paris 06, LPNHE, Paris, France Univ Paris 07, Paris, France Univ Paris 07 Paris FranceUniv Paris 07, Paris, France LAPP, Annecy, France LAPP Annecy FranceLAPP, Annecy, France Johns Hopkins Univ, Baltimore, MD USA Johns Hopkins Univ Baltimore MD USA ohns Hopkins Univ, Baltimore, MD USA Harvard Univ, Cambridge, MA 02138 USA Harvard Univ Cambridge MA USA 02138Harvard Univ, Cambridge, MA 02138 USA Univ Calabria, I-87036 Cosenza, Italy Univ Calabria Cosenza Italy I-87036 niv Calabria, I-87036 Cosenza, Italy Ist Nazl Fis Nucl, Cosenza, Italy Ist Nazl Fis Nucl Cosenza ItalyIst Nazl Fis Nucl, Cosenza, Italy Univ Dortmund, Dortmund, Germany Univ Dortmund Dortmund GermanyUniv Dortmund, Dortmund, Germany JINR, Dubna, Russia JINR Dubna RussiaJINR, Dubna, Russia Univ Florence, Florence, Italy Univ Florence Florence ItalyUniv Florence, Florence, Italy Ist Nazl Fis Nucl, I-50125 Florence, Italy Ist Nazl Fis Nucl Florence Italy I-50125 s Nucl, I-50125 Florence, Italy CERN, CH-1211 Geneva 23, Switzerland CERN Geneva Switzerland 23CERN, CH-1211 Geneva 23, Switzerland Univ Lausanne, CH-1015 Lausanne, Switzerland Univ Lausanne Lausanne Switzerland CH-1015 CH-1015 Lausanne, Switzerland Univ Calif Los Angeles, Los Angeles, CA 90024 USA Univ Calif Los Angeles Los Angeles CA USA 90024 Los Angeles, CA 90024 USA Univ Melbourne, Parkville, Vic 3052, Australia Univ Melbourne Parkville Vic Australia 3052 arkville, Vic 3052, Australia Russian Acad Sci, Inst Nucl Res, Moscow, Russia Russian Acad Sci Moscow Russia Acad Sci, Inst Nucl Res, Moscow, Russia Univ Padua, Padua, Italy Univ Padua Padua ItalyUniv Padua, Padua, Italy Ist Nazl Fis Nucl, Padua, Italy Ist Nazl Fis Nucl Padua ItalyIst Nazl Fis Nucl, Padua, Italy Univ Pavia, I-27100 Pavia, Italy Univ Pavia Pavia Italy I-27100Univ Pavia, I-27100 Pavia, Italy Ist Nazl Fis Nucl, I-27100 Pavia, Italy Ist Nazl Fis Nucl Pavia Italy I-27100 azl Fis Nucl, I-27100 Pavia, Italy Univ Pisa, Pisa, Italy Univ Pisa Pisa ItalyUniv Pisa, Pisa, Italy Ist Nazl Fis Nucl, Pisa, Italy Ist Nazl Fis Nucl Pisa ItalyIst Nazl Fis Nucl, Pisa, Italy Univ Perugia, I-06100 Perugia, Italy Univ Perugia Perugia Italy I-06100Univ Perugia, I-06100 Perugia, Italy Ist Nazl Fis Nucl, I-06100 Perugia, Italy Ist Nazl Fis Nucl Perugia Italy I-06100 Fis Nucl, I-06100 Perugia, Italy Roma Tre Univ, Rome, Italy Roma Tre Univ Rome ItalyRoma Tre Univ, Rome, Italy Ist Nazl Fis Nucl, Rome, Italy Ist Nazl Fis Nucl Rome ItalyIst Nazl Fis Nucl, Rome, Italy CEA Saclay, DAPNIA, Gif Sur Yvette, France CEA Saclay Gif Sur Yvette France Saclay, DAPNIA, Gif Sur Yvette, France ANSTO Sydney, Menai, NSW, Australia ANSTO Sydney Menai NSW AustraliaANSTO Sydney, Menai, NSW, Australia Univ S Carolina, Columbia, SC 29208 USA Univ S Carolina Columbia SC USA 29208 S Carolina, Columbia, SC 29208 USA Univ Sydney, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia2006 Sydney, Sydney, NSW 2006, Australia Univ Urbino, I-61029 Urbino, Italy Univ Urbino Urbino Italy I-61029Univ Urbino, I-61029 Urbino, Italy Ist Nazl Fis Nucl, I-50125 Florence, Italy Ist Nazl Fis Nucl Florence Italy I-50125 s Nucl, I-50125 Florence, Italy IFIC, Valencia, Spain IFIC Valencia SpainIFIC, Valencia, Spain Rudjer Boskovic Inst, Zagreb, Croatia Rudjer Boskovic Inst Zagreb Croatia djer Boskovic Inst, Zagreb, Croatia ETH Zurich, Zurich, Switzerland ETH Zurich Zurich SwitzerlandETH Zurich, Zurich, Switzerland
Titolo Testata:
PHYSICS LETTERS B
fascicolo: 4, volume: 479, anno: 2000,
pagine: 371 - 380
SICI:
0370-2693(20000427)479:4<371:SFE(SP>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
NOMAD EXPERIMENT; MAGNETIC-FIELD; ELECTROMAGNETIC CALORIMETER; PHOTON; DIMENSIONS; DETECTOR; MASSLESS; SYSTEM; BOSON; DECAY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Astier, P Univ Paris 06, LPNHE, Paris, France Univ Paris 06 Paris France niv Paris 06, LPNHE, Paris, France
Citazione:
P. Astier et al., "Search for eV (pseudo) scalar penetrating particles in the SPS neutrino beam", PHYS LETT B, 479(4), 2000, pp. 371-380

Abstract

We carried out a model-independent search for light scalar or pseudoscalarparticles a's (an example of which is the axion) that couple to two photons by using a photon-regeneration method at high energies allowing a substantial increase in the sensitivity to eV masses. The experimental set-up is based on elements of the CERN West Area Neutrino Facility (WANF) beam Line and the NOMAD neutrino detector. The new particles, if they exist, could be produced through the Primakoff effect in interactions of high energy photons, generated by the 450 GeV protons in the CERN SPS neutrino target, with virtual photons from the WANF horn magnetic field. The particles would penetrate the downstream shielding and would be observed in the NOMAD neutrino detector through their re-conversion into real high energy photons by interacting with the virtual photons from the magnetic field of the NOMAD dipole magnet. From the analysis of the data collected during the 1996 run with 1.08 x 10(19) protons on target, 312 candidate events with energy between 5 and 140 GeV were found. This number is in general agreement with the expectation of272 +/- 18 background events from standard neutrino processes. A 90 % CL upper limit on the a gamma gamma-coupling g(a gamma gamma) < 1.5 x 10(-4) GeV-1 for a masses up to 40 eV is obtained. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 24/11/20 alle ore 08:03:52