Measurement of 1.7–74 MeV polarised γ rays with the HARPO TPC

Autor: M. Louzir, P. Sizun, M. Frotin, Ph. Gros, Y. Minamiyama, S. Daté, A. Delbart, D. Calvet, D. Gotz, P. Colas, P. Poilleux, David Attié, I. Semeniouk, B. Giebels, Akinori Takemoto, Shuji Miyamoto, Takuya Kotaka, P. Bruel, Masashi Yamaguchi, D. Bernard, Satoshi Hashimoto, Sho Amano, Y. Geerebaert, Haruo Ohkuma, D. Horan, S. Wang

Publikováno v: Nucl.Instrum.Meth.A
14th Vienna Conference on Instrumentation
14th Vienna Conference on Instrumentation, Feb 2016, Vienna, Austria. pp.228-232, ⟨10.1016/j.nima.2016.06.031⟩
14th Vienna Conference on Instrumentation, Feb 2016, Vienna, Austria. Nucl.Instrum.Meth.A, 845, pp.228-232, 2017, 〈10.1016/j.nima.2016.06.031〉

Current {\gamma}-ray telescopes based on photon conversions to electron-positron pairs, such as Fermi, use tungsten converters. They suffer of limited angular resolution at low energies, and their sensitivity drops below 1 GeV. The low multiple scatt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::893e955d7506ef61b9fe0d40859b0b5e
https://doi.org/10.1016/j.nima.2016.06.031

C++ implementation of Bethe–Heitler, 5D, polarized, γ→e+e− pair conversion event generator

Autor: I. Semeniouk, D. Bernard

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 936:290-291

We present the C++ implementation of an event generator for linearly-polarized gamma-ray conversions to γ→e+e− pairs. The generator uses the full 5D Bethe–Heitler probability density function for the generation of the γ→e+e− pair and for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3fe0e14865425b6117bfa226dba4aedc
https://doi.org/10.1016/j.nima.2018.09.154

A Comprehensive Analysis of Polarized $\gamma $ -ray Beam Data with the HARPO Demonstrator

Autor: P. Poilleux, M. Frotin, R. Yonamine, Satoshi Hashimoto, Y. Minamiyama, D. Horan, D. Baudin, D. Calvet, I. Semeniouk, H. Ohkuma, P. Baron, S. Miyamoto, A. Delbart, P. Sizun, Masashi Yamaguchi, D. Gotz, P. Bruel, Philippe Gros, M. Louzir, D. Bernard, D. Attié, S. Wang, Paul Colas, B. Giebels, Takuya Kotaka, S. Daté, Akinori Takemoto, Y. Geerebaert, Sho Amano

Publikováno v: Springer Proc.Phys.
4th International conference on Technology and Instrumentation in Particle Physics
4th International conference on Technology and Instrumentation in Particle Physics, May 2017, Beijing, China. pp.27-30, ⟨10.1007/978-981-13-1313-4_6⟩
Springer Proceedings in Physics ISBN: 9789811313127

International audience; We investigate the feasibility of gaseous TPC as a telescope and a polarimeter for cosmic gamma-rays, focussing on the energy range from 1 to 100 MeV. Our beam results show the angular resolution can reach a factor of 2 better

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4402cd27dc766246ddfca5125e73bf
https://hal.archives-ouvertes.fr/hal-01863380

First measurement of the polarisation asymmetry of a gamma-ray beam between 1.7 to 74 MeV with the HARPO TPC

Autor: M. Frotin, P. Colas, D. Calvet, Philippe Gros, Haruo Ohkuma, M. Louzir, D. Bernard, David Attié, B. Giebels, Takuya Kotaka, A. Delbart, P. Sizun, P. Bruel, I. Semeniouk, D. Gotz, P. Poilleux, Sho Amano, S. Wang, D. Horan, Masashi Yamaguchi, Y. Minamiyama, Y. Geerebaert, Satoshi Hashimoto, Akinori Takemoto, Shuji Miyamoto, S. Daté

Publikováno v: SPIE Astronomical Telescopes + Instrumentation
SPIE Astronomical Telescopes + Instrumentation, Jun 2016, Edinburgh, France. pp.99052R

Current γ-ray telescopes suffer from a gap in sensitivity in the energy range between 100 keV and 100 MeV, and no polarisation measurement has ever been done on cosmic sources above 1 MeV. Past and present e+e- pair telescopes are limited at lower e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7be8f3a503d936a8d57c55c20f29fa85
http://hal.in2p3.fr/in2p3-02003344

Results of the first performance tests * of the CMS electromagnetic calorimeter

Autor: N. Zamiatin, Anna Elliott-Peisert, I. Yaselli, G. Dewhirst, Tiziano Camporesi, P. Chang, R. Gomez-Reino, Jordan Nash, N. G. Redaelli, Zeljko Antunovic, Frixos A Triantis, C. Gargiulo, P. Miné, Dieter Renker, Petar Adzic, A. M. Gaillac, S. Shevchenko, M. E. Zeller, A. Nardulli, Michael Dittmar, Bernard Ille, O. Ravat, Viktor Matveev, Konrad Deiters, Alessio Ghezzi, J. D. Swain, Y. Geerebaert, H. Mathez, D. Holmes, I. Semeniouk, P. Bordalo, S. Udriot, David Ja Cockerill, Florian Beaudette, A. Asimidis, Marcella Diemoz, S. K. Dhawan, Wolfgang Funk, Roger Rusack, Nikola Godinovic, J. M. Reymond, Ren-Yuan Zhu, J. A. Hill, Paolo Meridiani, George Wei-Shu Hou, Patrick Jarry, T. Sakhelashvili, P. S. Flower, Jean-Louis Faure, Luciano Barone, K. Ueno, Nadia Pastrone, Alison Lister, Riccardo Paramatti, B. W. Kennedy, M. Hansen, J. Grahl, Federico Ferri, H. El Mamouni, Marco Paganoni, M. Haguenauer, J. Gilly, F. Rondeaux, I. Mandjavidze, Christopher Seez, Claire Shepherd-Themistocleous, Michel Raymond, Elizabeth Locci, P. Vichoudis, P. Negri, Patrick Janot, M. J. Bercher, Remi Chipaux, M. Bonesini, J. Ehlers, A. De Min, M. C. Lemaire, S. Drndarevic, A. Tcheremoukhine, Ioannis Papadopoulos, R. Beuselinck, Isabel C. Teixeira, A. Singovski, K. W. Bell, J. Puzović, Pierre Lecomte, Georgios Anagnostou, G. Sidiropoulos, S. Gascon Shotkin, E. A. Chen, D. Schinzel, J. P. Guillaud, Cristina Biino, B. Fabbro, Harvey B Newman, Egidio Longo, J. Greenhalgh, Ivica Puljak, R. Alemany-Fernandez, H. Rykaczewski, S. Ramos, L. Djambazov, Giovanni Organtini, B. Smith, Carlos Almeida, G. Franzoni, Werner Lustermann, R. Bruneliere, André Holzner, A. B. Lodge, P. Gras, T. Tabarelli de Fatis, Demetrios Loukas, D. Krpic, S. Blyth, R. J. Tapper, R. Salerno, Jean Fay, G. Viertel, Y. H. Chang, A. Pullia, Sergey Troshin, Meng Wang, C. Combaret, S. Baccaro, N. Krasnikov, A. Markou, M. Mur, Ivan Anicin, M. Lebeau, N. Regnault, P. Sharp, W. T. Lin, A.L. Lintern, S. Costantini, P. Sempere Roldan, R. Della Negra, Francesca Nessi-Tedaldi, M. Dupanloup, C. Rovelli, Q. Ingram, P. Busson, Adolf Bornheim, S. K. Kataria, Ioannis Evangelou, J. C. da Silva, S. N. Gninenko, David Barney, Stephanie Beauceron, Nikolay Tyurin, E. Menichetti, Alain Givernaud, Stefano Ragazzi, M. Sproston, G. Hamel de Montechenault, B. L. Betev, H. Suter, André Rosowsky, Morgan Lethuillier, M. Montecchi, Alexander Nikitenko, T. Romanteau, M. J. Ryan, O. Teller, M. Reynaud, N. Almeida, S. Reynaud, O. Sharif, Predrag Milenovic, Peter R Hobson, J. Bourotte, R. M. Brown, Pietro Govoni, Pascal Paganini, L. Dobrzynski, Marc Dejardin, Yves Sirois, I. van Vulpen, Paul Lecoq, Panos A Razis, N. Vaz Cardoso, D. Chamont, Albert M. Sirunyan, M. Santos, Aristotelis Kyriakis, A. S. Giolo-Nicollerat, R. Benetta, Francesca Cavallari, Kostas Kloukinas, P. Bloch, G. Milleret, S. Bimbot, A. Bartoloni, João Paulo Teixeira, Joao Varela, M. Dzelalija, D. Sillou, Pierre Depasse, Andrey Uzunian, H. A. Neal, Yuri Musienko, G. Davatz, F. X. Gentit, Catherine Kirsty Mackay, S. Reucroft, Günther Dissertori, M. Anfreville, A. Go, John Rander, J. H. Williams, A. Jain, Felicitas Pauss, Maiko Takahashi, P. Barrillon, P. Verrecchia, Dave Britton, K. Zhu, Panagiotis Kokkas, C. Lynch, M. Korjik, V. Katchanov, Vincent J Smith, Nikolaos Manthos, Nicolo Cartiglia, Claude Charlot, Ashutosh Bhardwaj, R. K. Shivpuri, L. Y. Zhang, Georgios Daskalakis, D. Maletic, S. V. Rusakov, M. A. Karar, B. Koblitz, G. Maurelli, N. Golubev, P. Nedelec, Helen F Heath, I. Dafinei, J. Descamp, Tejinder Virdee, S. Zelepoukine, Etiennette Auffray, R. Ofierzynski, C. Collard, P. Poilleux, M. M. Obertino

Publikováno v: The European Physical Journal C, 44 (Supplement 2)
European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2006, 44, pp.1-10. ⟨10.1140/epjcd/s2005-02-011-3⟩
European Physical Journal C. Particles and Fields

Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to validate prototypes of the new Very Front End electronics

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e6d488a9938150fc65ed4dfe3e47bc2
https://doi.org/10.1140/epjcd/s2005-02-011-3