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1. The prototype detection unit of the KM3NeT detector

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny, Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia, European Commission, Adrián Martínez, Silvia, Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E.G., Androulakis, G. C., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Llorens Alvarez, Carlos David, Martínez Mora, Juan Antonio, Saldaña Coscollar, María, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny, Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia, European Commission, Adrián Martínez, Silvia, Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E.G., Androulakis, G. C., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Llorens Alvarez, Carlos David, Martínez Mora, Juan Antonio, and Saldaña Coscollar, María
Abstract: [EN] A prototype detection unit of the KM3NeT deep-sea neutrino telescope has been installed at 3500m depth 80 km offshore the Italian coast. KM3NeT in its final configuration will contain several hundreds of detection units. Each detection unit is a mechanical structure anchored to the sea floor, held vertical by a submerged buoy and supporting optical modules for the detection of Cherenkov light emitted by charged secondary particles emerging from neutrino interactions. This prototype string implements three optical modules with 31 photomultiplier tubes each. These optical modules were developed by the KM3NeT Collaboration to enhance the detection capability of neutrino interactions. The prototype detection unit was operated since its deployment in May 2014 until its decommissioning in July 2015. Reconstruction of the particle trajectories from the data requires a nanosecond accuracy in the time calibration. A procedure for relative time calibration of the photomultiplier tubes contained in each optical module is described. This procedure is based on the measured coincidences produced in the sea by the K background light and can easily be expanded to a detector with several thousands of optical modules. The time offsets between the different optical modules are obtained using LED nanobeacons mounted inside them. A set of data corresponding to 600 h of livetime was analysed. The results show good agreement with Monte Carlo simulations of the expected optical background and the signal from atmospheric muons. An almost background-free sample of muons was selected by filtering the time correlated signals on all the three optical modules. The zenith angle of the selected muons was reconstructed with a precision of about 3 degrees.
Published: 2016

2. The prototype detection unit of the KM3NeT detector

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny, Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia, European Commission, Adrián Martínez, Silvia, Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E.G., Androulakis, G. C., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Llorens Alvarez, Carlos David, Martínez Mora, Juan Antonio, Saldaña Coscollar, María, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny, Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia, European Commission, Adrián Martínez, Silvia, Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E.G., Androulakis, G. C., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Llorens Alvarez, Carlos David, Martínez Mora, Juan Antonio, and Saldaña Coscollar, María
Abstract: [EN] A prototype detection unit of the KM3NeT deep-sea neutrino telescope has been installed at 3500m depth 80 km offshore the Italian coast. KM3NeT in its final configuration will contain several hundreds of detection units. Each detection unit is a mechanical structure anchored to the sea floor, held vertical by a submerged buoy and supporting optical modules for the detection of Cherenkov light emitted by charged secondary particles emerging from neutrino interactions. This prototype string implements three optical modules with 31 photomultiplier tubes each. These optical modules were developed by the KM3NeT Collaboration to enhance the detection capability of neutrino interactions. The prototype detection unit was operated since its deployment in May 2014 until its decommissioning in July 2015. Reconstruction of the particle trajectories from the data requires a nanosecond accuracy in the time calibration. A procedure for relative time calibration of the photomultiplier tubes contained in each optical module is described. This procedure is based on the measured coincidences produced in the sea by the K background light and can easily be expanded to a detector with several thousands of optical modules. The time offsets between the different optical modules are obtained using LED nanobeacons mounted inside them. A set of data corresponding to 600 h of livetime was analysed. The results show good agreement with Monte Carlo simulations of the expected optical background and the signal from atmospheric muons. An almost background-free sample of muons was selected by filtering the time correlated signals on all the three optical modules. The zenith angle of the selected muons was reconstructed with a precision of about 3 degrees.
Published: 2016

3. High-frequency internal wave motions at the ANTARES site in the deep western mediterranean

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Conseil Régional d'Alsace, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Centre National pour la Recherche Scientifique et Technique, Marruecos, Agence de l'Oriental, Marruecos, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Ministerio de Economía y Competitividad, European Regional Development Fund, Département du Var and Ville de La Seyne-sur-Mer, Van Haren, H., Adrián Martínez, Silvia, Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anton, L., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Ferri García, Marcelino, Aubert, J-J., Baret, B., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Conseil Régional d'Alsace, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Centre National pour la Recherche Scientifique et Technique, Marruecos, Agence de l'Oriental, Marruecos, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Ministerio de Economía y Competitividad, European Regional Development Fund, Département du Var and Ville de La Seyne-sur-Mer, Van Haren, H., Adrián Martínez, Silvia, Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anton, L., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Ferri García, Marcelino, Aubert, J-J., Baret, B., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: [EN] High-frequency internal wave motions of periods down to 20 min have been observed in a yearlong record from the deep Western Mediterranean, mainly in vertical currents. The observations were made using the ANTARES neutrino telescope infrastructure. One line of the telescope is instrumented with environmental monitoring devices, and in particular with an Acoustic Doppler Current Profiler that was used to measure currents around 2,200 m. Such high-frequency internal waves are commonly observed much closer to the sea surface where the vertical density stratification is more stable than in the deep sea. In this paper, they are supported by the relatively large stratification following newly formed dense water. During the severe winters of 2005 and 2006, deep dense-water formation occurred in the Ligurian subbasin. Its collapse and spread over the sea floor across the basin remained detectable for at least 3 years as deduced from the present yearlong current record, which is from 2008. The observed high-frequency internal waves match the occasional density stratification observed in ¡«1-m-thin layers using previous shipborne conductivity¿C temperature¿C depth measurements. Such layers and waves are relatively unusual in the deep Mediterranean, where commonly several hundreds-ofmeters- thick near-homogeneous layers dominate. Such thick near-homogeneous layers provide about a half-decade narrow internal wave band around the inertial frequency (f). In contrast, the presently observed vertical currents occasionally show a ¡°small-scale¡± internal wave band that is on average 1.5 decades wide, associated with thin-layer stratification. In spite of its relatively largewidth, this band still shows variance peaking near f rather than near the large-scale buoyancy frequency N (= 2.3 4.5f) and this variance is found to increase with increasing N.
Published: 2014

4. A search for neutrino emission from the Fermi bubbles with ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Foundation for Fundamental Research on Matter, Holanda, Conseil Régional Provence-Alpes-Côte d'Azur, Council on grants of the President of the Russian Federation, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Instituto Nazionale di Fisica Nucleare; Ministerio de Ciencia e Innovación, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Agence de l'Oriental, Marruecos, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.-J., Baret, B., Barrios-Marti, J., Basa, S., Bertin, V., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Foundation for Fundamental Research on Matter, Holanda, Conseil Régional Provence-Alpes-Côte d'Azur, Council on grants of the President of the Russian Federation, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Instituto Nazionale di Fisica Nucleare; Ministerio de Ciencia e Innovación, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Agence de l'Oriental, Marruecos, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.-J., Baret, B., Barrios-Marti, J., Basa, S., Bertin, V., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Analysis of the Fermi-LAT data has revealed two extended structures above and below the Galactic Centre emitting gamma rays with a hard spectrum, the so-called Fermi bubbles. Hadronic models attempting to explain the origin of the Fermi bubbles predict the emission of high energy neutrinos and gamma rays with similar fluxes. The ANTARES detector, a neutrino telescope located in the Mediterranean Sea, has a good visibility to the Fermi bubble regions. Using data collected from 2008 to 2011 no statistically significant excess of events is observed and therefore upper limits on the neutrino flux in TeV range from the Fermi bubbles are derived for various assumed energy cutoffs of the source.
Published: 2014

5. A search for neutrino emission from the Fermi bubbles with ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Foundation for Fundamental Research on Matter, Holanda, Conseil Régional Provence-Alpes-Côte d'Azur, Council on grants of the President of the Russian Federation, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Instituto Nazionale di Fisica Nucleare, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Agence de l'Oriental, Marruecos, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.-J., Baret, B., Barrios-Marti, J., Basa, S., Bertin, V., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Foundation for Fundamental Research on Matter, Holanda, Conseil Régional Provence-Alpes-Côte d'Azur, Council on grants of the President of the Russian Federation, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Instituto Nazionale di Fisica Nucleare, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Agence de l'Oriental, Marruecos, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.-J., Baret, B., Barrios-Marti, J., Basa, S., Bertin, V., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Analysis of the Fermi-LAT data has revealed two extended structures above and below the Galactic Centre emitting gamma rays with a hard spectrum, the so-called Fermi bubbles. Hadronic models attempting to explain the origin of the Fermi bubbles predict the emission of high energy neutrinos and gamma rays with similar fluxes. The ANTARES detector, a neutrino telescope located in the Mediterranean Sea, has a good visibility to the Fermi bubble regions. Using data collected from 2008 to 2011 no statistically significant excess of events is observed and therefore upper limits on the neutrino flux in TeV range from the Fermi bubbles are derived for various assumed energy cutoffs of the source.
Published: 2014

6. High-frequency internal wave motions at the ANTARES site in the deep western mediterranean

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Conseil Régional d'Alsace, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Centre National pour la Recherche Scientifique et Technique, Marruecos, Agence de l'Oriental, Marruecos, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Ministerio de Economía y Competitividad, European Regional Development Fund, Département du Var and Ville de La Seyne-sur-Mer, Van Haren, H., Adrián Martínez, Silvia, Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anton, L., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Ferri García, Marcelino, Aubert, J-J., Baret, B., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Conseil Régional d'Alsace, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Centre National pour la Recherche Scientifique et Technique, Marruecos, Agence de l'Oriental, Marruecos, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Ministerio de Economía y Competitividad, European Regional Development Fund, Département du Var and Ville de La Seyne-sur-Mer, Van Haren, H., Adrián Martínez, Silvia, Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anton, L., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Ferri García, Marcelino, Aubert, J-J., Baret, B., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: [EN] High-frequency internal wave motions of periods down to 20 min have been observed in a yearlong record from the deep Western Mediterranean, mainly in vertical currents. The observations were made using the ANTARES neutrino telescope infrastructure. One line of the telescope is instrumented with environmental monitoring devices, and in particular with an Acoustic Doppler Current Profiler that was used to measure currents around 2,200 m. Such high-frequency internal waves are commonly observed much closer to the sea surface where the vertical density stratification is more stable than in the deep sea. In this paper, they are supported by the relatively large stratification following newly formed dense water. During the severe winters of 2005 and 2006, deep dense-water formation occurred in the Ligurian subbasin. Its collapse and spread over the sea floor across the basin remained detectable for at least 3 years as deduced from the present yearlong current record, which is from 2008. The observed high-frequency internal waves match the occasional density stratification observed in ¡«1-m-thin layers using previous shipborne conductivity¿C temperature¿C depth measurements. Such layers and waves are relatively unusual in the deep Mediterranean, where commonly several hundreds-ofmeters- thick near-homogeneous layers dominate. Such thick near-homogeneous layers provide about a half-decade narrow internal wave band around the inertial frequency (f). In contrast, the presently observed vertical currents occasionally show a ¡°small-scale¡± internal wave band that is on average 1.5 decades wide, associated with thin-layer stratification. In spite of its relatively largewidth, this band still shows variance peaking near f rather than near the large-scale buoyancy frequency N (= 2.3 4.5f) and this variance is found to increase with increasing N.
Published: 2014

7. Deep sea tests of a prototype of the KM3NeT digital optical module

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia, European Commission, Adrián Martínez, Silvia, Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E.G., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Asmundis, R. de, Balasi, K., Llorens Alvarez, Carlos David, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia, European Commission, Adrián Martínez, Silvia, Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E.G., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Asmundis, R. de, Balasi, K., Llorens Alvarez, Carlos David, and Martínez Mora, Juan Antonio
Abstract: [EN] The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deepwaters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on the first months of data taking and rate measurements. The analysis results highlight the capabilities of the new module design in terms of background suppression and signal recognition. The directionality of the optical module enables the recognition of multiple Cherenkov photons from the same 40K decay and the localisation of bioluminescent activity in the neighbourhood. The single unit can cleanly identify atmospheric muons and provide sensitivity to the muon arrival directions.
Published: 2014

8. Measurement of the atmospheric neutrines energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Regional Development Fund, European Commission, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, Département du Var and Ville de La Seyne-sur-Mer, Bundesministerium für Bildung und Forschung, Alemania, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Instituto Nazionale di Fisica Nucleare, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J, Basa, S., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Regional Development Fund, European Commission, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, Département du Var and Ville de La Seyne-sur-Mer, Bundesministerium für Bildung und Forschung, Alemania, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Instituto Nazionale di Fisica Nucleare, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J, Basa, S., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Atmospheric neutrinos are produced during cascades initiated by the interaction of primary cosmic rays with air nuclei. In this paper, a measurement of the atmospheric neutrine + antineutrine; energy spectrum in the energy range 0.1 200 TeV is presented, using data collected by the ANTARES underwater neutrino telescope from 2008 to 2011. Overall, the measured flux is near 25 % higher than predicted by the conventional neutrino flux, and compatible with the measurements reported in ice. The flux is compatible with a single power-law dependence with spectral index gamma meas = 3.58 ± 0.12. With the present statistics the contribution of prompt neutrinos cannot be established.
Published: 2013

9. SEARCH FOR A CORRELATION BETWEEN ANTARES NEUTRINOS AND PIERRE AUGER OBSERVATORY UHECRs ARRIVAL DIRECTIONS

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Generalitat Valenciana, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Agence Nationale de la Recherche, Francia, Foundation for Fundamental Research on Matter, Holanda, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Generalitat Valenciana, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Agence Nationale de la Recherche, Francia, Foundation for Fundamental Research on Matter, Holanda, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: A multimessenger analysis optimized for a correlation of arrival directions of ultra-high energy cosmic rays (UHECRs) and neutrinos is presented and applied to 2190 neutrino candidate events detected in 2007 2008 by the ANTARES telescope and 69 UHECRs observed by the Pierre Auger Observatory between 2004 January 1 and 2009 December 31. No significant correlation is observed. Assuming an equal neutrino flux (E-2 energy spectrum) from all UHECR directions, a 90% CL upper limit on the neutrino flux of 5.0 × 10-8 GeV cm-2 s-1 per source is derived.
Published: 2013

10. Search for muon neutrinos from gamma-ray bursts with the ANTARES neutrino telescope using 2008 to 2011 data

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, European Commission, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J., Basa, S., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, European Commission, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J., Basa, S., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Aims. We search for muon neutrinos in coincidence with GRBs with the ANTARES neutrino detector using data from the end of 2007 to 2011. Methods. Expected neutrino fluxes were calculated for each burst individually. The most recent numerical calculations of the spectra using the NeuCosmA code were employed, which include Monte Carlo simulations of the full underlying photohadronic interaction processes. The discovery probability for a selection of 296 GRBs in the given period was optimised using an extended maximum-likelihood strategy. Results. No significant excess over background is found in the data, and 90% confidence level upper limits are placed on the total expected flux according to the model.
Published: 2013

11. Measurement of the atmospheric neutrines energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Regional Development Fund, European Commission, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, Département du Var and Ville de La Seyne-sur-Mer, Bundesministerium für Bildung und Forschung, Alemania, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Instituto Nazionale di Fisica Nucleare, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J, Basa, S., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Regional Development Fund, European Commission, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, Département du Var and Ville de La Seyne-sur-Mer, Bundesministerium für Bildung und Forschung, Alemania, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Instituto Nazionale di Fisica Nucleare, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J, Basa, S., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Atmospheric neutrinos are produced during cascades initiated by the interaction of primary cosmic rays with air nuclei. In this paper, a measurement of the atmospheric neutrine + antineutrine; energy spectrum in the energy range 0.1 200 TeV is presented, using data collected by the ANTARES underwater neutrino telescope from 2008 to 2011. Overall, the measured flux is near 25 % higher than predicted by the conventional neutrino flux, and compatible with the measurements reported in ice. The flux is compatible with a single power-law dependence with spectral index gamma meas = 3.58 ± 0.12. With the present statistics the contribution of prompt neutrinos cannot be established.
Published: 2013

12. Search for muon neutrinos from gamma-ray bursts with the ANTARES neutrino telescope using 2008 to 2011 data

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, European Commission, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J., Basa, S., Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional d'Alsace, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Agence de l'Oriental, Marruecos, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, European Commission, European Regional Development Fund, Agence Nationale de la Recherche, Francia, Adrián Martínez, Silvia, Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Baret, B., Barrios Martí, J., Basa, S., Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Aims. We search for muon neutrinos in coincidence with GRBs with the ANTARES neutrino detector using data from the end of 2007 to 2011. Methods. Expected neutrino fluxes were calculated for each burst individually. The most recent numerical calculations of the spectra using the NeuCosmA code were employed, which include Monte Carlo simulations of the full underlying photohadronic interaction processes. The discovery probability for a selection of 296 GRBs in the given period was optimised using an extended maximum-likelihood strategy. Results. No significant excess over background is found in the data, and 90% confidence level upper limits are placed on the total expected flux according to the model.
Published: 2013

13. SEARCH FOR A CORRELATION BETWEEN ANTARES NEUTRINOS AND PIERRE AUGER OBSERVATORY UHECRs ARRIVAL DIRECTIONS

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Generalitat Valenciana, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Agence Nationale de la Recherche, Francia, Foundation for Fundamental Research on Matter, Holanda, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Generalitat Valenciana, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Agence Nationale de la Recherche, Francia, Foundation for Fundamental Research on Matter, Holanda, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Council on grants of the President of the Russian Federation, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Commission, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J.J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: A multimessenger analysis optimized for a correlation of arrival directions of ultra-high energy cosmic rays (UHECRs) and neutrinos is presented and applied to 2190 neutrino candidate events detected in 2007 2008 by the ANTARES telescope and 69 UHECRs observed by the Pierre Auger Observatory between 2004 January 1 and 2009 December 31. No significant correlation is observed. Assuming an equal neutrino flux (E-2 energy spectrum) from all UHECR directions, a 90% CL upper limit on the neutrino flux of 5.0 × 10-8 GeV cm-2 s-1 per source is derived.
Published: 2013

14. First results on dark matter annihilation in the Sun using the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Netherlands Organization for Scientific Research, Conseil Régional d'Alsace, Centre National pour la Recherche Scientifique et Technique, Marruecos, Département du Var and Ville de La Seyne-sur-Mer, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Regional Development Fund, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Ministerio de Ciencia e Innovación, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, Agence de l'Oriental, Marruecos, Foundation for Fundamental Research on Matter, Holanda, Generalitat Valenciana, Adrián Martínez, Silvia, Ardid Ramírez, Miguel, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Al Samaraib, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anton, L., Anvar, S., Astraatmadja, T., Aubert, J.J., Baret, B., Basa, S., Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Netherlands Organization for Scientific Research, Conseil Régional d'Alsace, Centre National pour la Recherche Scientifique et Technique, Marruecos, Département du Var and Ville de La Seyne-sur-Mer, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, European Regional Development Fund, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Ministerio de Ciencia e Innovación, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, Agence de l'Oriental, Marruecos, Foundation for Fundamental Research on Matter, Holanda, Generalitat Valenciana, Adrián Martínez, Silvia, Ardid Ramírez, Miguel, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Al Samaraib, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anton, L., Anvar, S., Astraatmadja, T., Aubert, J.J., Baret, B., and Basa, S.
Abstract: A search for high-energy neutrinos coming from the direction of the Sun has been performed using the data recorded by the ANTARES neutrino telescope during 2007 and 2008. The neutrino selection criteria have been chosen to maximize the selection of possible signals produced by the self-annihilation of weakly interacting massive particles accumulated in the centre of the Sun with respect to the atmospheric background. After data unblinding, the number of neutrinos observed towards the Sun was found to be compatible with background expectations. The 90% CL upper limits in terms of spin-dependent and spin-independent WIMP-proton cross-sections are derived and compared to predictions of two supersymmetric models, CMSSM and MSSM-7. The ANTARES limits are comparable with those obtained by other neutrino observatories and are more stringent than those obtained by direct search experiments for the spin-dependent WIMP-proton cross-section in the case of hard self-annihilation channels (W+W-, T+ T-).
Published: 2013

15. Measurement of the group velocity of light in sea water at the ANTARES site

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Adrián Martínez, Silvia, Al Samarai, I, Albert, A., André, A, Anghinolfi, M., Anton, G, Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Adrián Martínez, Silvia, Al Samarai, I, Albert, A., André, A, Anghinolfi, M., Anton, G, Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The group velocity of light has been measured at eight different wavelengths between 385 nm and 532 nm in the Mediterranean Sea at a depth of about 2.2 km with the ANTARES optical beacon systems. A parametrisation of the dependence of the refractive index on wavelength based on the salinity, pressure and temperature of the sea water at the ANTARES site is in good agreement with these measurements.
Published: 2012

16. Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Conseil Régional Provence-Alpes-Côte d'Azur, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Ministerio de Ciencia e Innovación, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, European Regional Development Fund, Adrián Martínez, Silvia, Al Samarai, I, Albert, A., André, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J-J, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Conseil Régional Provence-Alpes-Côte d'Azur, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Ministerio de Ciencia e Innovación, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, European Regional Development Fund, Adrián Martínez, Silvia, Al Samarai, I, Albert, A., André, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J-J, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES telescope is well-suited to detect neutrinos produced in astrophysical transient sources as it can observe a full hemisphere of the sky at all times with a high duty cycle. Radio-loud active galactic nuclei with jets pointing almost directly towards the observer, the so-called blazars, are particularly attractive potential neutrino point sources. The all-sky monitor LAT on board the Fermi satellite probes the variability of any given gamma-ray bright blazar in the sky on time scales of hours to months. Assuming hadronic models, a strong correlation between the gamma-ray and the neutrino fluxes is expected. Selecting a narrow time window on the assumed neutrino production period can significantly reduce the background. An unbinned method based on the minimization of a likelihood ratio was applied to a subsample of data collected in 2008 (61 days live time). By searching for neutrinos during the high state periods of the AGN light curve, the sensitivity to these sources was improved by about a factor of two with respect to a standard time-integrated point source search. First results on the search for neutrinos associated with ten bright and variable Fermi sources are presented.
Published: 2012

17. Search for cosmic neutrino point sources with four year data of the ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Agence de l'Oriental, Marruecos, Netherlands Organization for Scientific Research, Instituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Centre National de la Recherche Scientifique, Francia, Foundation for Fundamental Research on Matter, Holanda, European Regional Development Fund, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Antón, G, Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Bou Cabo, Manuel, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Agence de l'Oriental, Marruecos, Netherlands Organization for Scientific Research, Instituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Centre National de la Recherche Scientifique, Francia, Foundation for Fundamental Research on Matter, Holanda, European Regional Development Fund, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Antón, G, Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Bou Cabo, Manuel, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: In this paper, a time-integrated search for point sources of cosmic neutrinos is presented using the data collected from 2007 to 2010 by the ANTARES neutrino telescope. No statistically significant signal has been found and upper limits on the neutrino flux have been obtained. Assuming an E ¿2 n; spectrum, these flux limits are at 1-10 ¿10¿8 GeV cm¿2 s¿1 for declinations ranging from ¿90° to 40°. Limits for specific models of RX J1713.7¿3946 and Vela X, which include information on the source morphology and spectrum, are also given.
Published: 2012

18. A method for detection of muon induced electromagnetic showers with the ANTARES detector

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Netherlands Organization for Scientific Research, Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Netherlands Organization for Scientific Research, Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The primary aim of ANTARES is neutrino astronomy with upward going muons created in charged current muon neutrino interactions in the detector and its surroundings. Downward going muons are background for neutrino searches. These muons are the decay products of cosmic-ray collisions in the Earths atmosphere far above the detector. This paper presents a method to identify and count electromagnetic showers induced along atmospheric muon tracks with the ANTARES detector. The method is applied to both cosmic muon data and simulations and its applicability to the reconstruction of muon event energies is demonstrated. © 2012 Elsevier B.V. All rights reserved.
Published: 2012

19. The positioning system of the ANTARES Neutrino Telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Agence Nationale de la Recherche, Francia, Centre National de la Recherche Scientifique, Francia, Generalitat Valenciana, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, European Commission, National Authority for Scientific Research, Rumanía, Adrián Martínez, Silvia, Ageron, M., Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Agence Nationale de la Recherche, Francia, Centre National de la Recherche Scientifique, Francia, Generalitat Valenciana, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, European Commission, National Authority for Scientific Research, Rumanía, Adrián Martínez, Silvia, Ageron, M., Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES neutrino telescope, located 40km off the coast of Toulon in the Mediterranean Sea at a mooring depth of about 2475m, consists of twelve detection lines equipped typically with 25 storeys. Every storey carries three optical modules that detect Cherenkov light induced by charged secondary particles (typically muons) coming from neutrino interactions. As these lines are flexible structures fixed to the sea bed and held taut by a buoy, sea currents cause the lines to move and the storeys to rotate. The knowledge of the position of the optical modules with a precision better than 10cm is essential for a good reconstruction of particle tracks. In this paper the ANTARES positioning system is described. It consists of an acoustic positioning system, for distance triangulation, and a compass-tiltmeter system, for the measurement of the orientation and inclination of the storeys. Necessary corrections are discussed and the results of the detector alignment procedure are described.
Published: 2012

20. The ANTARES telescope neutrino alert system

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional Provence-Alpes-Côte d'Azur, National Authority for Scientific Research, Rumanía, Foundation for Fundamental Research on Matter, Holanda, European Commission, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Instituto Nazionale di Fisica Nucleare, Ageron, M, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Conseil Régional Provence-Alpes-Côte d'Azur, National Authority for Scientific Research, Rumanía, Foundation for Fundamental Research on Matter, Holanda, European Commission, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Instituto Nazionale di Fisica Nucleare, Ageron, M, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES telescope has the capability to detect neutrinos produced in astrophysical transient sources. Potential sources include gamma-ray bursts, core collapse supernovae, and flaring active galactic nuclei. To enhance the sensitivity of ANTARES to such sources, a new detection method based on coincident observations of neutrinos and optical signals has been developed. A fast online muon track reconstruction is used to trigger a network of small automatic optical telescopes. Such alerts are generated for special events, such as two or more neutrinos, coincident in time and direction, or single neutrinos of very high energy.
Published: 2012

21. Search for relativistic magnetic monopoles with the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Generalitat Valenciana, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, Adrián Martínez, Silvia, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Generalitat Valenciana, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, Adrián Martínez, Silvia, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Magnetic monopoles are predicted in various unified gauge models and could be produced at intermediate mass scales. Their detection in a neutrino telescope is facilitated by the large amount of light emitted compared to that from muons. This paper reports on a search for upgoing relativistic magnetic monopoles with the ANTARES neutrino telescope using a data set of 116 days of live time taken from December 2007 to December 2008. The one observed event is consistent with the expected atmospheric neutrino and muon background, leading to a 90% C.L. upper limit on the monopole flux between 1.3 ¿ 10¿17 and 8.9 ¿ 10¿17 cm¿2 s¿1 sr¿1 for monopoles with velocity ß ¿ 0.625.
Published: 2012

22. The positioning system of the ANTARES Neutrino Telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Agence Nationale de la Recherche, Francia, Centre National de la Recherche Scientifique, Francia, Generalitat Valenciana, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, European Commission, National Authority for Scientific Research, Rumanía, Adrián Martínez, Silvia, Ageron, M., Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Agence Nationale de la Recherche, Francia, Centre National de la Recherche Scientifique, Francia, Generalitat Valenciana, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, European Commission, National Authority for Scientific Research, Rumanía, Adrián Martínez, Silvia, Ageron, M., Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES neutrino telescope, located 40km off the coast of Toulon in the Mediterranean Sea at a mooring depth of about 2475m, consists of twelve detection lines equipped typically with 25 storeys. Every storey carries three optical modules that detect Cherenkov light induced by charged secondary particles (typically muons) coming from neutrino interactions. As these lines are flexible structures fixed to the sea bed and held taut by a buoy, sea currents cause the lines to move and the storeys to rotate. The knowledge of the position of the optical modules with a precision better than 10cm is essential for a good reconstruction of particle tracks. In this paper the ANTARES positioning system is described. It consists of an acoustic positioning system, for distance triangulation, and a compass-tiltmeter system, for the measurement of the orientation and inclination of the storeys. Necessary corrections are discussed and the results of the detector alignment procedure are described.
Published: 2012

23. A method for detection of muon induced electromagnetic showers with the ANTARES detector

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Netherlands Organization for Scientific Research, Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Ministerio de Ciencia e Innovación; Generalitat Valenciana, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Netherlands Organization for Scientific Research, Aguilar, J. A., Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The primary aim of ANTARES is neutrino astronomy with upward going muons created in charged current muon neutrino interactions in the detector and its surroundings. Downward going muons are background for neutrino searches. These muons are the decay products of cosmic-ray collisions in the Earths atmosphere far above the detector. This paper presents a method to identify and count electromagnetic showers induced along atmospheric muon tracks with the ANTARES detector. The method is applied to both cosmic muon data and simulations and its applicability to the reconstruction of muon event energies is demonstrated. © 2012 Elsevier B.V. All rights reserved.
Published: 2012

24. Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Conseil Régional Provence-Alpes-Côte d'Azur, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Ministerio de Ciencia e Innovación, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, European Regional Development Fund, Generalitat Valenciana, Adrián Martínez, Silvia, Al Samarai, I, Albert, A., André, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J-J, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Conseil Régional Provence-Alpes-Côte d'Azur, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Ministerio de Ciencia e Innovación, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, European Regional Development Fund, Generalitat Valenciana, Adrián Martínez, Silvia, Al Samarai, I, Albert, A., André, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J-J, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES telescope is well-suited to detect neutrinos produced in astrophysical transient sources as it can observe a full hemisphere of the sky at all times with a high duty cycle. Radio-loud active galactic nuclei with jets pointing almost directly towards the observer, the so-called blazars, are particularly attractive potential neutrino point sources. The all-sky monitor LAT on board the Fermi satellite probes the variability of any given gamma-ray bright blazar in the sky on time scales of hours to months. Assuming hadronic models, a strong correlation between the gamma-ray and the neutrino fluxes is expected. Selecting a narrow time window on the assumed neutrino production period can significantly reduce the background. An unbinned method based on the minimization of a likelihood ratio was applied to a subsample of data collected in 2008 (61 days live time). By searching for neutrinos during the high state periods of the AGN light curve, the sensitivity to these sources was improved by about a factor of two with respect to a standard time-integrated point source search. First results on the search for neutrinos associated with ten bright and variable Fermi sources are presented.
Published: 2012

25. Search for relativistic magnetic monopoles with the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Generalitat Valenciana, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, Adrián Martínez, Silvia, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, National Authority for Scientific Research, Rumanía, Council on grants of the President of the Russian Federation, Agence Nationale de la Recherche, Francia, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Generalitat Valenciana, Netherlands Organization for Scientific Research, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Centre National de la Recherche Scientifique, Francia, Département du Var and Ville de La Seyne-sur-Mer, Foundation for Fundamental Research on Matter, Holanda, Adrián Martínez, Silvia, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Magnetic monopoles are predicted in various unified gauge models and could be produced at intermediate mass scales. Their detection in a neutrino telescope is facilitated by the large amount of light emitted compared to that from muons. This paper reports on a search for upgoing relativistic magnetic monopoles with the ANTARES neutrino telescope using a data set of 116 days of live time taken from December 2007 to December 2008. The one observed event is consistent with the expected atmospheric neutrino and muon background, leading to a 90% C.L. upper limit on the monopole flux between 1.3 ¿ 10¿17 and 8.9 ¿ 10¿17 cm¿2 s¿1 sr¿1 for monopoles with velocity ß ¿ 0.625.
Published: 2012

26. Measurement of atmospheric neutrino oscillations with the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación, Conseil Régional d'Alsace, Centre National pour la Recherche Scientifique et Technique, Marruecos, Netherlands Organization for Scientific Research, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, European Commission, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Instituto Nazionale di Fisica Nucleare, Agence de l'Oriental, Marruecos, Generalitat Valenciana, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J. -J., Baret, B., Bou Cabo, Manuel, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional Provence-Alpes-Côte d'Azur, Ministerio de Ciencia e Innovación, Conseil Régional d'Alsace, Centre National pour la Recherche Scientifique et Technique, Marruecos, Netherlands Organization for Scientific Research, Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Rumanía, Council on grants of the President of the Russian Federation, Département du Var and Ville de La Seyne-sur-Mer, European Commission, Centre National de la Recherche Scientifique, Francia, Bundesministerium für Bildung und Forschung, Alemania, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Foundation for Fundamental Research on Matter, Holanda, Instituto Nazionale di Fisica Nucleare, Agence de l'Oriental, Marruecos, Generalitat Valenciana, Adrián Martínez, Silvia, Al Samarai, I., Albert, A., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Astraatmadja, T., Aubert, J. -J., Baret, B., Bou Cabo, Manuel, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The data taken with the ANTARES neutrino telescope from 2007 to 2010, a total live time of 863 days, are used to measure the oscillation parameters of atmospheric neutrinos. Muon tracks are reconstructed with energies as low as 20 GeV. Neutrino oscillations will cause a suppression of vertical upgoing muon neutrinos of such energies crossing the Earth. The parameters determining the oscillation of atmospheric neutrinos are extracted by fitting the event rate as a function of the ratio of the estimated neutrino energy and reconstructed flight path through the Earth. Measurement contours of the oscillation parameters in a two-flavour approximation are derived. Assuming maximal mixing, a mass difference of Delta m(32)(2) = (3.1 +/- 0.9) . 10(-3) eV(2) is obtained, in good agreement with the world average value. (C) 2012 Elsevier B.V. All rights reserved.
Published: 2012

27. ANTARES: The first undersea neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Ageron, M., Aguilar, J. A., Al Samarai, I., Albert, A., Ameli, F., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Ageron, M., Aguilar, J. A., Al Samarai, I., Albert, A., Ameli, F., Andre, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES Neutrino Telescope was completed in May 2008 and is the first operational Neutrino Telescope in the Mediterranean Sea. The main purpose of the detector is to perform neutrino astronomy and the apparatus also offers facilities for marine and Earth sciences. This paper describes the design, the construction and the installation of the telescope in the deep sea, offshore from Toulon in France. An illustration of the detector performance is given. © 2011 Elsevier B.V. All rights reserved.
Published: 2011

28. AMADEUS - The acoustic neutrino detection test system of the ANTARES deep-sea neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Foundation for Fundamental Research on Matter, Holanda, National Authority for Scientific Research, Rumanía, Département du Var and Ville de La Seyne-sur-Mer, Generalitat Valenciana, Council on grants of the President of the Russian Federation, Instituto Nazionale di Fisica Nucleare, European Commission, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Aguilar, J. A., Al Samarai, I., Albert, A., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Aubert, J. -J., Auer, R., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Foundation for Fundamental Research on Matter, Holanda, National Authority for Scientific Research, Rumanía, Département du Var and Ville de La Seyne-sur-Mer, Generalitat Valenciana, Council on grants of the President of the Russian Federation, Instituto Nazionale di Fisica Nucleare, European Commission, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Aguilar, J. A., Al Samarai, I., Albert, A., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Aubert, J. -J., Auer, R., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The AMADEUS (ANTARES Modules for the Acoustic Detection Under the Sea) system which is described in this article aims at the investigation of techniques for acoustic detection of neutrinos in the deep sea. It is integrated into the ANTARES neutrino telescope in the Mediterranean Sea. Its acoustic sensors, installed at water depths between 2050 and 2300 m, employ piezo-electric elements for the broad-band recording of signals with frequencies ranging up to 125 kHz. The typical sensitivity of the sensors is around - 145 dB re 1 V/mu Pa (including preamplifier). Completed in May 2008, AMADEUS consists of six "acoustic clusters", each comprising six acoustic sensors that are arranged at distances of roughly 1 m from each other. Two vertical mechanical structures (so-called lines) of the ANTARES detector host three acoustic clusters each. Spacings between the clusters range from 14.5 to 340 m. Each cluster contains custom-designed electronics boards to amplify and digitise the acoustic signals from the sensors. An on-shore computer cluster is used to process and filter the data stream and store the selected events. The daily volume of recorded data is about 10 GB. The system is operating continuously and automatically, requiring only little human intervention. AMADEUS allows for extensive studies of both transient signals and ambient noise in the deep sea, as well as signal correlations on several length scales and localisation of acoustic point sources. Thus the system is excellently suited to assess the background conditions for the measurement of the bipolar pulses expected to originate from neutrino interactions. (C) 2010 Elsevier B.V. All rights reserved.
Published: 2011

29. Time calibration of the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Département du Var and Ville de La Seyne-sur-Mer, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Generalitat Valenciana, European Commission, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Centre National de la Recherche Scientifique, Francia, Aguilar, J.A, Al Samarai, I, Albert, A., André, M., Anghinolfi, M., Anton, G, Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Département du Var and Ville de La Seyne-sur-Mer, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Generalitat Valenciana, European Commission, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Centre National de la Recherche Scientifique, Francia, Aguilar, J.A, Al Samarai, I, Albert, A., André, M., Anghinolfi, M., Anton, G, Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES deep-sea neutrino telescope comprises a three-dimensional array of photomultipliers to detect the Cherenkov light induced by upgoing relativistic charged particles originating from neutrino interactions in the vicinity of the detector. The large scattering length of light in the deep sea facilitates an angular resolution of a few tenths of a degree for neutrino energies exceeding 10 TeV. In order to achieve this optimal performance, the time calibration procedures should ensure a relative time calibration between the photomultipliers at the level of ~1 ns. The methods developed to attain this level of precision are described.
Published: 2011

30. First search for point sources of high-energy cosmic neutrinos with the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Agence Nationale de la Recherche, Francia, Council on grants of the President of the Russian Federation, Generalitat Valenciana, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Adrián Martínez, Silvia, Aguilar, J.A., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Agence Nationale de la Recherche, Francia, Council on grants of the President of the Russian Federation, Generalitat Valenciana, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Adrián Martínez, Silvia, Aguilar, J.A., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Results are presented of a search for cosmic sources of high-energy neutrinos with the ANTARES neutrino telescope. The data were collected during 2007 and 2008 using detector configurations containing between 5 and 12 detection lines. The integrated live time of the analyzed data is 304 days. Muon tracks are reconstructed using a likelihood-based algorithm. Studies of the detector timing indicate a median angular resolution of 0.5 0.1deg. The neutrino flux sensitivity is 7.5 ¿ 10 -8(E ¿/ GeV) -2 GeV -1 s -1 cm -2 for the part of the sky that is always visible (¿ < -48deg), which is better than limits obtained by previous experiments. No cosmic neutrino sources have been observed.
Published: 2011

31. Search for a diffuse flux of high-energy neutrino mu with the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Agence Nationale de la Recherche, Francia, European Commission, European Regional Development Fund, Conseil Régional d'Alsace, Conseil Régional Provence-Alpes-Côte d'Azur, Département du Var and Ville de La Seyne-sur-Mer, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Aguilar, J. A., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Assis Jesus, A.C., Astraatmadja, T., Aubert, J-J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Centre National de la Recherche Scientifique, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Agence Nationale de la Recherche, Francia, European Commission, European Regional Development Fund, Conseil Régional d'Alsace, Conseil Régional Provence-Alpes-Côte d'Azur, Département du Var and Ville de La Seyne-sur-Mer, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Aguilar, J. A., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Assis Jesus, A.C., Astraatmadja, T., Aubert, J-J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: [EN] A search for a diffuse flux of astrophysical muon neutrinos, using data collected by the ANTARES neutrino telescope is presented. A (0.83×2¿) sr sky was monitored for a total of 334 days of equivalent live time. The searched signal corresponds to an excess of events, produced by astrophysical sources, over the expected atmospheric neutrino background. The observed number of events is found compatible with the background expectation. Assuming an E -2 flux spectrum, a 90% c.l. upper limit on the diffuse ¿ ¿ flux of E 2¿90%=5.3×10 -8 GeVcm -2s -1sr -11 in the energy range 20 TeV-2.5 PeV is obtained. Other signal models with different energy spectra are also tested and some rejected. © 2010 Elsevier B.V.
Published: 2011

32. AMADEUS - The acoustic neutrino detection test system of the ANTARES deep-sea neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Foundation for Fundamental Research on Matter, Holanda, National Authority for Scientific Research, Rumanía, Département du Var and Ville de La Seyne-sur-Mer, Generalitat Valenciana, Council on grants of the President of the Russian Federation, Instituto Nazionale di Fisica Nucleare, European Commission, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Aguilar, J. A., Al Samarai, I., Albert, A., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Aubert, J. -J., Auer, R., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Agence Nationale de la Recherche, Francia, Bundesministerium für Bildung und Forschung, Alemania, Centre National de la Recherche Scientifique, Francia, Foundation for Fundamental Research on Matter, Holanda, National Authority for Scientific Research, Rumanía, Département du Var and Ville de La Seyne-sur-Mer, Generalitat Valenciana, Council on grants of the President of the Russian Federation, Instituto Nazionale di Fisica Nucleare, European Commission, Netherlands Organization for Scientific Research, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Aguilar, J. A., Al Samarai, I., Albert, A., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Jesus, A. C. Assis, Astraatmadja, T., Aubert, J. -J., Auer, R., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The AMADEUS (ANTARES Modules for the Acoustic Detection Under the Sea) system which is described in this article aims at the investigation of techniques for acoustic detection of neutrinos in the deep sea. It is integrated into the ANTARES neutrino telescope in the Mediterranean Sea. Its acoustic sensors, installed at water depths between 2050 and 2300 m, employ piezo-electric elements for the broad-band recording of signals with frequencies ranging up to 125 kHz. The typical sensitivity of the sensors is around - 145 dB re 1 V/mu Pa (including preamplifier). Completed in May 2008, AMADEUS consists of six "acoustic clusters", each comprising six acoustic sensors that are arranged at distances of roughly 1 m from each other. Two vertical mechanical structures (so-called lines) of the ANTARES detector host three acoustic clusters each. Spacings between the clusters range from 14.5 to 340 m. Each cluster contains custom-designed electronics boards to amplify and digitise the acoustic signals from the sensors. An on-shore computer cluster is used to process and filter the data stream and store the selected events. The daily volume of recorded data is about 10 GB. The system is operating continuously and automatically, requiring only little human intervention. AMADEUS allows for extensive studies of both transient signals and ambient noise in the deep sea, as well as signal correlations on several length scales and localisation of acoustic point sources. Thus the system is excellently suited to assess the background conditions for the measurement of the bipolar pulses expected to originate from neutrino interactions. (C) 2010 Elsevier B.V. All rights reserved.
Published: 2011

33. A fast algorithm for muon track reconstruction and its application to the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Conseil Régional Provence-Alpes-Côte d'Azur, Council on grants of the President of the Russian Federation, European Commission, Bundesministerium für Bildung und Forschung, Alemania, Agence Nationale de la Recherche, Francia, Département du Var and Ville de La Seyne-sur-Mer, Netherlands Organization for Scientific Research, Centre National de la Recherche Scientifique, Francia, National Authority for Scientific Research, Rumanía, Foundation for Fundamental Research on Matter, Holanda, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Ministerio de Ciencia e Innovación, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Assis Jesus, A.C., Astraatmadja, T., Aubert, J.-J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Instituto Nazionale di Fisica Nucleare, Conseil Régional Provence-Alpes-Côte d'Azur, Council on grants of the President of the Russian Federation, European Commission, Bundesministerium für Bildung und Forschung, Alemania, Agence Nationale de la Recherche, Francia, Département du Var and Ville de La Seyne-sur-Mer, Netherlands Organization for Scientific Research, Centre National de la Recherche Scientifique, Francia, National Authority for Scientific Research, Rumanía, Foundation for Fundamental Research on Matter, Holanda, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Ministerio de Ciencia e Innovación, Aguilar, JA, Al Samarai, I, Albert, A, Andre, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid Ramírez, Miguel, Assis Jesus, A.C., Astraatmadja, T., Aubert, J.-J., Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track hypothesis and a point-like light source. It is particularly well-suited for real time applications such as online monitoring and fast triggering of optical follow-up observations for multi-messenger studies. The performance of the algorithm is evaluated with Monte Carlo simulations and various distributions are compared with that obtained in ANTARES data.
Published: 2011

34. First search for point sources of high-energy cosmic neutrinos with the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Agence Nationale de la Recherche, Francia, Council on grants of the President of the Russian Federation, Generalitat Valenciana, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Adrián Martínez, Silvia, Aguilar, J.A., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Foundation for Fundamental Research on Matter, Holanda, Département du Var and Ville de La Seyne-sur-Mer, Centre National de la Recherche Scientifique, Francia, Agence Nationale de la Recherche, Francia, Council on grants of the President of the Russian Federation, Generalitat Valenciana, National Authority for Scientific Research, Rumanía, Instituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung und Forschung, Alemania, Netherlands Organization for Scientific Research, European Commission, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Adrián Martínez, Silvia, Aguilar, J.A., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Ferri García, Marcelino, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: Results are presented of a search for cosmic sources of high-energy neutrinos with the ANTARES neutrino telescope. The data were collected during 2007 and 2008 using detector configurations containing between 5 and 12 detection lines. The integrated live time of the analyzed data is 304 days. Muon tracks are reconstructed using a likelihood-based algorithm. Studies of the detector timing indicate a median angular resolution of 0.5 0.1deg. The neutrino flux sensitivity is 7.5 ¿ 10 -8(E ¿/ GeV) -2 GeV -1 s -1 cm -2 for the part of the sky that is always visible (¿ < -48deg), which is better than limits obtained by previous experiments. No cosmic neutrino sources have been observed.
Published: 2011

35. Time calibration of the ANTARES neutrino telescope

Author: Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Département du Var and Ville de La Seyne-sur-Mer, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Generalitat Valenciana, European Commission, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Centre National de la Recherche Scientifique, Francia, Aguilar, J.A, Al Samarai, I, Albert, A., André, M., Anghinolfi, M., Anton, G, Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, Martínez Mora, Juan Antonio, Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada, Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Conseil Régional d'Alsace, Ministerio de Ciencia e Innovación, Conseil Régional Provence-Alpes-Côte d'Azur, Bundesministerium für Bildung und Forschung, Alemania, Instituto Nazionale di Fisica Nucleare, Département du Var and Ville de La Seyne-sur-Mer, Council on grants of the President of the Russian Federation, National Authority for Scientific Research, Rumanía, Generalitat Valenciana, European Commission, Foundation for Fundamental Research on Matter, Holanda, Netherlands Organization for Scientific Research, Agence Nationale de la Recherche, Francia, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia, Centre National de la Recherche Scientifique, Francia, Aguilar, J.A, Al Samarai, I, Albert, A., André, M., Anghinolfi, M., Anton, G, Anvar, S., Ardid Ramírez, Miguel, Bou Cabo, Manuel, Camarena Femenia, Francisco, Larosa, Giuseppina, and Martínez Mora, Juan Antonio
Abstract: The ANTARES deep-sea neutrino telescope comprises a three-dimensional array of photomultipliers to detect the Cherenkov light induced by upgoing relativistic charged particles originating from neutrino interactions in the vicinity of the detector. The large scattering length of light in the deep sea facilitates an angular resolution of a few tenths of a degree for neutrino energies exceeding 10 TeV. In order to achieve this optimal performance, the time calibration procedures should ensure a relative time calibration between the photomultipliers at the level of ~1 ns. The methods developed to attain this level of precision are described.
Published: 2011

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35 results on '"Anvar, S."'

1. The prototype detection unit of the KM3NeT detector

2. The prototype detection unit of the KM3NeT detector

3. High-frequency internal wave motions at the ANTARES site in the deep western mediterranean

4. A search for neutrino emission from the Fermi bubbles with ANTARES telescope

5. A search for neutrino emission from the Fermi bubbles with ANTARES telescope

6. High-frequency internal wave motions at the ANTARES site in the deep western mediterranean

7. Deep sea tests of a prototype of the KM3NeT digital optical module

8. Measurement of the atmospheric neutrines energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope

9. SEARCH FOR A CORRELATION BETWEEN ANTARES NEUTRINOS AND PIERRE AUGER OBSERVATORY UHECRs ARRIVAL DIRECTIONS

10. Search for muon neutrinos from gamma-ray bursts with the ANTARES neutrino telescope using 2008 to 2011 data

11. Measurement of the atmospheric neutrines energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope

12. Search for muon neutrinos from gamma-ray bursts with the ANTARES neutrino telescope using 2008 to 2011 data

13. SEARCH FOR A CORRELATION BETWEEN ANTARES NEUTRINOS AND PIERRE AUGER OBSERVATORY UHECRs ARRIVAL DIRECTIONS

14. First results on dark matter annihilation in the Sun using the ANTARES neutrino telescope

15. Measurement of the group velocity of light in sea water at the ANTARES site

16. Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope

17. Search for cosmic neutrino point sources with four year data of the ANTARES telescope

18. A method for detection of muon induced electromagnetic showers with the ANTARES detector

19. The positioning system of the ANTARES Neutrino Telescope

20. The ANTARES telescope neutrino alert system

21. Search for relativistic magnetic monopoles with the ANTARES neutrino telescope

22. The positioning system of the ANTARES Neutrino Telescope

23. A method for detection of muon induced electromagnetic showers with the ANTARES detector

24. Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope

25. Search for relativistic magnetic monopoles with the ANTARES neutrino telescope

26. Measurement of atmospheric neutrino oscillations with the ANTARES neutrino telescope

27. ANTARES: The first undersea neutrino telescope

28. AMADEUS - The acoustic neutrino detection test system of the ANTARES deep-sea neutrino telescope

29. Time calibration of the ANTARES neutrino telescope

30. First search for point sources of high-energy cosmic neutrinos with the ANTARES neutrino telescope

31. Search for a diffuse flux of high-energy neutrino mu with the ANTARES neutrino telescope

32. AMADEUS - The acoustic neutrino detection test system of the ANTARES deep-sea neutrino telescope

33. A fast algorithm for muon track reconstruction and its application to the ANTARES neutrino telescope

34. First search for point sources of high-energy cosmic neutrinos with the ANTARES neutrino telescope

35. Time calibration of the ANTARES neutrino telescope

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