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Your search keyword '"Romenesko, P."' showing total 4 results
Start Over Author "Romenesko, P." Publisher hogskolan i kalmar, naturvetenskapliga institutionen
4 results on '"Romenesko, P."'

1. Search for point sources of high-energy neutrinos with AMANDA

Author

Ahrens, J., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becka, T., Becker, K. -H, Bertrand, D., Binon, F., Biron, A., Boeser, S., Botner, O., Bouchta, A., Bouhali, O., Burgess, T., Carius, Staffan, Castermans, T., Chirkin, D., Conrad, J., Cooley, J., Cowen, D. F., Davour, A., de Clercq, C., DeYoung, T., Desiati, P., Dewulf, J. -P, Doksus, P., Edsjö, J., Ekström, P., Feser, T., Gaisser, T. K., Gaug, M., Gerhardt, L., Goldschmidt, A., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., Hauschildt, T., Hellwig, M., Herquet, P., Hill, G. C., Hulth, P. O., Hultqvist, K., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Köpke, L., Kowalski, M., Kuehn, K., Lamoureux, J. I., Leich, H., Leuthold, M., Lindahl, P., Madsen, J., Marciniewski, P., Matis, H., McParland, C. P., Miller, T. C., Minaeva, Y., Miocinoví, P., Mock, P. C., Morse, R., Neunhöffer, T., Niessen, P., Nygren, D. R., Ögelman, H., Olbrechts, P., Pérez de los Heros, C., Pohl, A. C., Price, P. B., Przybylski, G. T., Rawlins, K., Resconi, E., Rhode, W., Ribordy, M., Richter, S., Rodríguez Martino, J., Romenesko, P., Ross, D., Sander, H. -G, Schmidt, T., Schneider, D., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G. M., Spiering, C., Steele, D., Steffen, P., Stokstad, R. G., Sulanke, K. -H, Taboada, I., Thollander, L., Tilav, S., Walck, C., Weinheimer, C., Wiebusch, C. H., Wiedemann, C., Wischnewski, R., Wissing, H., Woschnagg, K., Wu, W., Yodh, G., Young, S., Ahrens, J., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becka, T., Becker, K. -H, Bertrand, D., Binon, F., Biron, A., Boeser, S., Botner, O., Bouchta, A., Bouhali, O., Burgess, T., Carius, Staffan, Castermans, T., Chirkin, D., Conrad, J., Cooley, J., Cowen, D. F., Davour, A., de Clercq, C., DeYoung, T., Desiati, P., Dewulf, J. -P, Doksus, P., Edsjö, J., Ekström, P., Feser, T., Gaisser, T. K., Gaug, M., Gerhardt, L., Goldschmidt, A., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., Hauschildt, T., Hellwig, M., Herquet, P., Hill, G. C., Hulth, P. O., Hultqvist, K., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Köpke, L., Kowalski, M., Kuehn, K., Lamoureux, J. I., Leich, H., Leuthold, M., Lindahl, P., Madsen, J., Marciniewski, P., Matis, H., McParland, C. P., Miller, T. C., Minaeva, Y., Miocinoví, P., Mock, P. C., Morse, R., Neunhöffer, T., Niessen, P., Nygren, D. R., Ögelman, H., Olbrechts, P., Pérez de los Heros, C., Pohl, A. C., Price, P. B., Przybylski, G. T., Rawlins, K., Resconi, E., Rhode, W., Ribordy, M., Richter, S., Rodríguez Martino, J., Romenesko, P., Ross, D., Sander, H. -G, Schmidt, T., Schneider, D., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G. M., Spiering, C., Steele, D., Steffen, P., Stokstad, R. G., Sulanke, K. -H, Taboada, I., Thollander, L., Tilav, S., Walck, C., Weinheimer, C., Wiebusch, C. H., Wiedemann, C., Wischnewski, R., Wissing, H., Woschnagg, K., Wu, W., Yodh, G., and Young, S.

Abstract

This paper describes the search for astronomical sources of high-energy neutrinos using the AMANDA-B10 detector, an array of 302 photomultiplier tubes used for the detection of Cerenkov light from upward-traveling neutrino-induced muons, buried deep in ice at the South Pole. The absolute pointing accuracy and angular resolution were studied by using coincident events between the AMANDA detector and two independent telescopes on the surface, the GASP air Cerenkov telescope and the SPASE extensive air shower array. Using data collected from 1997 April to October (130.1 days of live time), a general survey of the northern hemisphere revealed no statistically significant excess of events from any direction. The sensitivity for a flux of muon neutrinos is based on the effective detection area for through-going muons. Averaged over the northern sky, the effective detection area exceeds 10,000 m2 for E μ ≈ 10 TeV. Neutrinos generated in the atmosphere by cosmic-ray interactions were used to verify the predicted performance of the detector. For a source with a differential energy spectrum proportional to Eν -2 and declination larger than +40°, we obtain E2(dNν/dE) ≤ 10-6 GeV cm-2 s-1 for an energy threshold of 10 GeV., Source: Scopus

Published
2003
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2. Search for neutrino-induced cascades with the AMANDA detector

Author

Ahrens, J., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becka, T., Becker, K. -H, Bertrand, D., Binon, F., Biron, A., Böser, S., Booth, J., Botner, O., Bouchta, A., Bouhali, O., Boyce, M. M., Burgess, T., Carius, Staffan, Chen, A., Chirkin, D., Conrad, J., Cooley, J., Costa, C. G. S., Cowen, D. F., Davour, A., De Clercq, C., DeYoung, T., Desiati, P., Dewulf, J. -P, Doksus, P., Ekström, P., Feser, T., Frère, J. -M, Gaisser, T. K., Gaug, M., Geenen, H., Goldschmidt, A., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., Hauschildt, T., Hellwig, M., Hill, G. C., Hulth, P. O., Hultqvist, K., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Koci, B., Köpke, L., Kowalski, M., Lamoureux, J. I., Leich, H., Leuthold, M., Lindahl, P., Liubarsky, I., Lowder, D. M., Madsen, J., Marciniewski, P., Matis, H. S., McParland, C. P., Messarius, T., Miller, T. C., Minaeva, Y., Miočinović, P., Mock, P. C., Morse, R., Neunhöffer, T., Niessen, P., Nygren, D. R., Ogelman, H., Olbrechts, Ph., De Los Heros, C. P., Pohl, A. C., Porrata, R., Price, P. B., Przybylski, G. T., Rawlins, K., Reed, C., Resconi, E., Rhode, W., Ribordy, M., Richter, S., Martino, J. R., Romenesko, P., Ross, D., Sander, H. -G, Schinarakis, K., Schmidt, T., Schneider, D., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G. M., Spiering, C., Starinsky, N., Steele, D., Ahrens, J., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becka, T., Becker, K. -H, Bertrand, D., Binon, F., Biron, A., Böser, S., Booth, J., Botner, O., Bouchta, A., Bouhali, O., Boyce, M. M., Burgess, T., Carius, Staffan, Chen, A., Chirkin, D., Conrad, J., Cooley, J., Costa, C. G. S., Cowen, D. F., Davour, A., De Clercq, C., DeYoung, T., Desiati, P., Dewulf, J. -P, Doksus, P., Ekström, P., Feser, T., Frère, J. -M, Gaisser, T. K., Gaug, M., Geenen, H., Goldschmidt, A., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., Hauschildt, T., Hellwig, M., Hill, G. C., Hulth, P. O., Hultqvist, K., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Koci, B., Köpke, L., Kowalski, M., Lamoureux, J. I., Leich, H., Leuthold, M., Lindahl, P., Liubarsky, I., Lowder, D. M., Madsen, J., Marciniewski, P., Matis, H. S., McParland, C. P., Messarius, T., Miller, T. C., Minaeva, Y., Miočinović, P., Mock, P. C., Morse, R., Neunhöffer, T., Niessen, P., Nygren, D. R., Ogelman, H., Olbrechts, Ph., De Los Heros, C. P., Pohl, A. C., Porrata, R., Price, P. B., Przybylski, G. T., Rawlins, K., Reed, C., Resconi, E., Rhode, W., Ribordy, M., Richter, S., Martino, J. R., Romenesko, P., Ross, D., Sander, H. -G, Schinarakis, K., Schmidt, T., Schneider, D., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G. M., Spiering, C., Starinsky, N., and Steele, D.

Abstract

We report on a search for electromagnetic and/or hadronic showers (cascades) induced by a diffuse flux of neutrinos with energies between 5 TeV and 300 TeV from extraterrestrial sources. Cascades may be produced by matter interactions of all flavors of neutrinos, and contained cascades have better energy resolution and afford better background rejection than throughgoing νμ-induced muons. Data taken in 1997 with the AMANDA detector were searched for events with a high-energy cascadelike signature. The observed events are consistent with expected backgrounds from atmospheric neutrinos and catastrophic energy losses from atmospheric muons. Effective volumes for all flavors of neutrinos, which allow the calculation of limits for any neutrino flux model, are presented. The limit on cascades from a diffuse flux of νe+ νμ + ντ+ ν̄e + ν̄μ+ ν̄τ is E2(dΦ/dE)<9.8×10-6 GeV cm-2 s-1 sr-1, assuming a neutrino flavor flux ratio of 1:1:1 at the detector. The limit on cascades from a diffuse flux of νe+ν̄e is E2(dΦ/dE)<6. 5×10-6 GeV cm-2 s-1 sr-1, independent of the assumed neutrino flavor flux ratio. © 2003 The American Physical Society., Art. No.: 012003

Published
2003
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3. Observation of high energy atmospheric neutrinos with the Antarctic muon and neutrino detector array

Author

Ahrens, J., Andrés, E., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becka, T., Becker, K. -H, Bertrand, D., Binon, F., Biron, A., Booth, J., Botner, O., Bouchta, A., Bouhali, O., Boyce, M. M., Carius, Staffan, Chen, A., Chirkin, D., Conrad, J., Cooley, J., Costa, C. G. S., Cowen, D. F., Dalberg, E., de Clercq, C., de Young, T., Desiati, P., Dewulf, J. -P, Doksus, P., Edsjö, J., Ekström, P., Feser, T., Frère, J. -M, Gaisser, T. K., Gaug, M., Goldschmidt, A., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., Hauschildt, T., Hellwig, M., Heukenkamp, H., Hill, G. C., Hulth, P. O., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Koci, B., Köpke, L., Kowalski, M., Lamoureux, J. I., Leich, H., Leuthold, M., Lindahl, P., Liubarsky, I., Loaiza, P., Lowder, D. M., Madsen, J., Marciniewski, P., Matis, H. S., McParland, C. P., Miller, T. C., Minaeva, Y., Miočinović, P., Mock, P. C., Morse, R., Neunhöffer, T., Niessen, P., Nygren, D. R., Ögelman, H., Olbrechts, Ph., Pérez de los Heros, C., Pohl, A. C., Porrata, R., Price, P. B., Przybylski, G. T., Rawlins, K., Reed, C., Rhode, W., Ribordy, M., Richter, S., Rodríguez Martino, J., Romenesko, P., Ross, D., Sander, H. -G, Schmidt, T., Schneider, D., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G. M., Spiering, C., Starinsky, N., Steele, D., Steffen, P., Stokstad, R. G., Streicher, O., Sudhoff, P., Sulanke, K. -H, Taboada, I., Thollander, L., Thon, T., Tilav, S., Vander Donckt, M., Walck, C., Weinheimer, C., Wiebusch, C. H., Wiedeman, C., Wischnewski, R., Wissing, H., Woschnagg, K., Wu, W., Yodh, G., Young, S., Ahrens, J., Andrés, E., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becka, T., Becker, K. -H, Bertrand, D., Binon, F., Biron, A., Booth, J., Botner, O., Bouchta, A., Bouhali, O., Boyce, M. M., Carius, Staffan, Chen, A., Chirkin, D., Conrad, J., Cooley, J., Costa, C. G. S., Cowen, D. F., Dalberg, E., de Clercq, C., de Young, T., Desiati, P., Dewulf, J. -P, Doksus, P., Edsjö, J., Ekström, P., Feser, T., Frère, J. -M, Gaisser, T. K., Gaug, M., Goldschmidt, A., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., Hauschildt, T., Hellwig, M., Heukenkamp, H., Hill, G. C., Hulth, P. O., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Koci, B., Köpke, L., Kowalski, M., Lamoureux, J. I., Leich, H., Leuthold, M., Lindahl, P., Liubarsky, I., Loaiza, P., Lowder, D. M., Madsen, J., Marciniewski, P., Matis, H. S., McParland, C. P., Miller, T. C., Minaeva, Y., Miočinović, P., Mock, P. C., Morse, R., Neunhöffer, T., Niessen, P., Nygren, D. R., Ögelman, H., Olbrechts, Ph., Pérez de los Heros, C., Pohl, A. C., Porrata, R., Price, P. B., Przybylski, G. T., Rawlins, K., Reed, C., Rhode, W., Ribordy, M., Richter, S., Rodríguez Martino, J., Romenesko, P., Ross, D., Sander, H. -G, Schmidt, T., Schneider, D., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G. M., Spiering, C., Starinsky, N., Steele, D., Steffen, P., Stokstad, R. G., Streicher, O., Sudhoff, P., Sulanke, K. -H, Taboada, I., Thollander, L., Thon, T., Tilav, S., Vander Donckt, M., Walck, C., Weinheimer, C., Wiebusch, C. H., Wiedeman, C., Wischnewski, R., Wissing, H., Woschnagg, K., Wu, W., Yodh, G., and Young, S.

Abstract

The Antarctic muon and neutrino detector array (AMANDA) began collecting data with ten strings in 1997. Results from the first year of operation are presented. Neutrinos coming through the Earth from the Northern Hemisphere are identified by secondary muons moving upward through the array. Cosmic rays in the atmosphere generate a background of downward moving muons, which are about 106 times more abundant than the upward moving muons. Over 130 days of exposure, we observed a total of about 300 neutrino events. In the same period, a background of 1.05 × 109 cosmic ray muon events was recorded. The observed neutrino flux is consistent with atmospheric neutrino predictions. Monte Carlo simulations indicate that 90% of these events lie in the energy range 66 GeV to 3.4 TeV. The observation of atmospheric neutrinos consistent with expectations establishes AMANDA-B10 as a working neutrino telescope., Art. No.: 012005

Published
2002
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4. Results from the AMANDA high energy neutrino detector

Author

Andres, E., Askebjer, P., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becker, K. -H, Bergström, L., Bertrand, D., Biron, A., Booth, J., Botner, O., Bouchta, A., Boyce, M. M., Carius, Staffan, Chirkin, D., Conrad, J., Costa, C. G. S., Cowen, D. F., Dailing, J., Dalberg, E., DeYoung, T., Desiati, P., Dewulf, J. -P, Doksus, P., Edsjö, J., Ekström, P., Erlandsson, B., Feser, T., Gaug, M., Goldschmidt, A., Goobar, A., Haase, H., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., He, Y. D., Hellwig, M., Heukenkamp, H., Hill, G. C., Hulth, P. O., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Koci, B., Köpke, L., Kowalski, M., Leich, H., Leuthold, M., Lindahl, P., Liubarsky, I., Loaiza, P., Lowder, D. M., Ludvig, J., Madsen, J., Marciniewski, P., Matis, H., Mikolajski, T., Miller, T. C., Minaeva, Y., Miocinovic, P., Mock, P., Morse, R., Neunhöffer, T., Newcomer, F. M., Niessen, P., Nygren, D. R., Pérez de los Heros, C., Porrata, R., Price, P. B., Rawlins, K., Reed, C., Rhode, W., Richards, A., Richter, S., Rodriguez Martino, J., Romenesko, P., Ross, D., Rubinstein, H., Sander, H. -G, Scheider, T., Schmidt, T., Schneider, D., Schneider, E., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G., Spiering, C., Starinski, N., Steele, D., Steffen, P., Stokstad, R. G., Streicher, O., Sun, Q., Taboada, I., Thollander, L., Thon, T., Tilav, S., Vander Donckt, M., Walck, C., Weinheimer, C., Wiebusch, C. H., Wischnewski, R., Woschnagg, K., Wu, W., Yodh, G., Young, S., Andres, E., Askebjer, P., Bai, X., Barouch, G., Barwick, S. W., Bay, R. C., Becker, K. -H, Bergström, L., Bertrand, D., Biron, A., Booth, J., Botner, O., Bouchta, A., Boyce, M. M., Carius, Staffan, Chirkin, D., Conrad, J., Costa, C. G. S., Cowen, D. F., Dailing, J., Dalberg, E., DeYoung, T., Desiati, P., Dewulf, J. -P, Doksus, P., Edsjö, J., Ekström, P., Erlandsson, B., Feser, T., Gaug, M., Goldschmidt, A., Goobar, A., Haase, H., Hallgren, A., Halzen, F., Hanson, K., Hardtke, R., He, Y. D., Hellwig, M., Heukenkamp, H., Hill, G. C., Hulth, P. O., Hundertmark, S., Jacobsen, J., Karle, A., Kim, J., Koci, B., Köpke, L., Kowalski, M., Leich, H., Leuthold, M., Lindahl, P., Liubarsky, I., Loaiza, P., Lowder, D. M., Ludvig, J., Madsen, J., Marciniewski, P., Matis, H., Mikolajski, T., Miller, T. C., Minaeva, Y., Miocinovic, P., Mock, P., Morse, R., Neunhöffer, T., Newcomer, F. M., Niessen, P., Nygren, D. R., Pérez de los Heros, C., Porrata, R., Price, P. B., Rawlins, K., Reed, C., Rhode, W., Richards, A., Richter, S., Rodriguez Martino, J., Romenesko, P., Ross, D., Rubinstein, H., Sander, H. -G, Scheider, T., Schmidt, T., Schneider, D., Schneider, E., Schwarz, R., Silvestri, A., Solarz, M., Spiczak, G., Spiering, C., Starinski, N., Steele, D., Steffen, P., Stokstad, R. G., Streicher, O., Sun, Q., Taboada, I., Thollander, L., Thon, T., Tilav, S., Vander Donckt, M., Walck, C., Weinheimer, C., Wiebusch, C. H., Wischnewski, R., Woschnagg, K., Wu, W., Yodh, G., and Young, S.

Abstract

This paper briefly summarizes the search for astronomical sources of high-energy neutrinos using the AMANDA-B10 detector. The complete data set from 1997 was analyzed. For Eμ > 10 TeV, the detector exceeds 10,000 m2 in effective area between declinations of 25 and 90 degrees. Neutrinos generated in the atmosphere by cosmic ray interactions were used to verify the overall sensitivity of the detector. The absolute pointing accuracy and angular resolution has been confirmed by the analysis of coincident events between the SPASE air shower array and the AMANDA detector. Preliminary flux limits from point source candidates are presented. For declinations larger than +45 degrees, our results compare favorably to existing limits for sources in the Southern sky. We also present the current status of the searches for high energy neutrino emission from diffusely distributed sources, GRBs, and WIMPs from the center of the earth., Source: Scopus

Published
2000
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