Study of the GERDA Phase II background spectrum

Agostini, M.; Allardt, M.; Bakalyarov, A.M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S.T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E.V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L.V.; Csáthy, J.J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I.V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K.T.; Kochetov, O.; Kornoukhov, V.N.; Kuzminov, V.V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V.I.; Lehnert, B.; Liao, H.Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-.; Schwingenheuer, B.; Selivanenko, O.; Shevzik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A.A.; Veresnikova, A.; Von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S.V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

doi:10.1088/1742-6596/888/1/012106

The Gerda experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN in Italy, searches for the neutrinoless double beta (0Î½Î²Î²) decay of 76Ge. Gerda Phase II is aiming to reach a sensitivity for the 0Î½Î²Î² half life of 1026 yr in â¼ 3 years of physics data taking with 100 kgâ¢yr of exposure and a background index of â¼ 10-3 cts/(keVâ¢kgâ¢yr). After 6 months of acquisition a first data release with 10.8 kgâ¢yr of exposure is performed, showing that the design background is achieved. In this work a study of the Phase II background spectrum, the main spectral structures and the background sources will be presented and discussed.

Study of the GERDA Phase II background spectrum / M. Agostini, M. Allardt, A.M. Bakalyarov, M. Balata, I. Barabanov, L. Baudis, C. Bauer, E. Bellotti, S. Belogurov, S.T. Belyaev, G. Benato, A. Bettini, L. Bezrukov, T. Bode, D. Borowicz, V. Brudanin, R. Brugnera, A. Caldwell, C. Cattadori, A. Chernogorov, V. D'Andrea, E.V. Demidova, N. Di Marco, A. Domula, E. Doroshkevich, V. Egorov, R. Falkenstein, N. Frodyma, A. Gangapshev, A. Garfagnini, C. Gooch, P. Grabmayr, V. Gurentsov, K. Gusev, J. Hakenmüller, A. Hegai, M. Heisel, S. Hemmer, W. Hofmann, M. Hult, L.V. Inzhechik, J.J. Csáthy, J. Jochum, M. Junker, V. Kazalov, T. Kihm, I.V. Kirpichnikov, A. Kirsch, A. Kish, A. Klimenko, R. Kneißl, K.T. Knöpfle, O. Kochetov, V.N. Kornoukhov, V.V. Kuzminov, M. Laubenstein, A. Lazzaro, V.I. Lebedev, B. Lehnert, H.Y. Liao, M. Lindner, I. Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, E. Medinaceli, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, I. Nemchenok, D. Palioselitis, K. Panas, L. Pandola, K. Pelczar, A. Pullia, S. Riboldi, N. Rumyantseva, C. Sada, F. Salamida, M. Salathe, C. Schmitt, B. Schneider, S. Schönert, J. Schreiner, O. Schulz, A.-. Schütz, B. Schwingenheuer, O. Selivanenko, E. Shevzik, M. Shirchenko, H. Simgen, A. Smolnikov, L. Stanco, L. Vanhoefer, A.A. Vasenko, A. Veresnikova, K. Von Sturm, V. Wagner, A. Wegmann, T. Wester, C. Wiesinger, M. Wojcik, E. Yanovich, I. Zhitnikov, S.V. Zhukov, D. Zinatulina, K. Zuber, G. Zuzel. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 888:1(2017), pp. 012106.1-012106.3. ((Intervento presentato al 27. convegno International Conference on Neutrino Physics and Astrophysics, Neutrino tenutosi a Royal Geographical SocietySouth Kensington nel 2016 [10.1088/1742-6596/888/1/012106].

Study of the GERDA Phase II background spectrum

Agostini, M.;Allardt, M.;Bakalyarov, A. M.;Balata, M.;Barabanov, I.;Baudis, L.;Bauer, C.;Bellotti, E.;Belogurov, S.;Belyaev, S. T.;Benato, G.;Bettini, A.;Bezrukov, L.;Bode, T.;Borowicz, D.;Brudanin, V.;Brugnera, R.;Caldwell, A.;Cattadori, C.;Chernogorov, A.;D'Andrea, V.;Demidova, E. V.;Di Marco, N.;Domula, A.;Doroshkevich, E.;Egorov, V.;Falkenstein, R.;Frodyma, N.;Gangapshev, A.;Garfagnini, A.;Gooch, C.;Grabmayr, P.;Gurentsov, V.;Gusev, K.;Hakenmüller, J.;Hegai, A.;Heisel, M.;Hemmer, S.;Hofmann, W.;Hult, M.;Inzhechik, L. V.;Csáthy, J. Janicskó;Jochum, J.;Junker, M.;Kazalov, V.;Kihm, T.;Kirpichnikov, I. V.;Kirsch, A.;Kish, A.;Klimenko, A.;Kneißl, R.;Knöpfle, K. T.;Kochetov, O.;Kornoukhov, V. N.;Kuzminov, V. V.;Laubenstein, M.;Lazzaro, A.;Lebedev, V. I.;Lehnert, B.;Liao, H. Y.;Lindner, M.;Lippi, I.;Lubashevskiy, A.;Lubsandorzhiev, B.;Lutter, G.;Macolino, C.;Majorovits, B.;Maneschg, W.;Medinaceli, E.;Miloradovic, M.;Mingazheva, R.;Misiaszek, M.;Moseev, P.;Nemchenok, I.;Palioselitis, D.;Panas, K.;Pandola, L.;Pelczar, K.;A. Pullia;S. Riboldi;Rumyantseva, N.;Sada, C.;Salamida, F.;Salathe, M.;Schmitt, C.;Schneider, B.;Schönert, S.;Schreiner, J.;Schulz, O.;Schütz, A. -K.;Schwingenheuer, B.;Selivanenko, O.;Shevzik, E.;Shirchenko, M.;Simgen, H.;Smolnikov, A.;Stanco, L.;Vanhoefer, L.;Vasenko, A. A.;Veresnikova, A.;Von Sturm, K.;Wagner, V.;Wegmann, A.;Wester, T.;Wiesinger, C.;Wojcik, M.;Yanovich, E.;Zhitnikov, I.;Zhukov, S. V.;Zinatulina, D.;Zuber, K.;Zuzel, G.

2017

Abstract

The Gerda experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN in Italy, searches for the neutrinoless double beta (0Î½Î²Î²) decay of 76Ge. Gerda Phase II is aiming to reach a sensitivity for the 0Î½Î²Î² half life of 1026 yr in â¼ 3 years of physics data taking with 100 kgâ¢yr of exposure and a background index of â¼ 10-3 cts/(keVâ¢kgâ¢yr). After 6 months of acquisition a first data release with 10.8 kgâ¢yr of exposure is performed, showing that the design background is achieved. In this work a study of the Phase II background spectrum, the main spectral structures and the background sources will be presented and discussed.

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				Physics and Astronomy (all)
			
	Settori scientifico-disciplinari dell'articolo (sola visualizzazione)
	
				Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
			
	Data di pubblicazione
	
				2017
			
	Rivista in ANCE
	
				JOURNAL OF PHYSICS. CONFERENCE SERIES
			
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				https://dx.doi.org/10.1088/1742-6596/888/1/012106
			
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