An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN

Autor: Aker, M., Altenmüller, K., Arenz, M., Babutzka, M., Barrett, J., Bauer, S., Beck, M., Beglarian, A., Behrens, J., Bergmann, T., Besserer, U., Blaum, K., Block, F., Bobien, S., Bokeloh, K., Bonn, J., Bornschein, B., Bornschein, L., Bouquet, H., Brunst, T., Caldwell, T. S., La Cascio, L., Chilingaryan, S., Choi, W., Corona, T. J., Debowski, K., Deffert, M., Descher, M., Doe, P. J., Dragoun, O., Drexlin, G., Dunmore, J. A., Dyba, S., Edzards, F., Eisenblätter, L., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Erhard, M., Eversheim, D., Fedkevych, M., Felden, A., Fischer, S., Flatt, B., Formaggio, J. A., Fränkle, F. M., Franklin, G. B., Frankrone, H., Friedel, F., Fuchs, D., Fulst, A., Furse, D., Gauda, K., Gemmeke, H., Gil, W., Glück, F., Görhardt, S., Groh, S., Grohmann, S., Grössle, R., Gumbsheimer, R., Minh, M. Ha, Hackenjos, M., Hannen, V., Harms, F., Hartmann, J., Haußmann, N., Heizmann, F., Helbing, K., Hickford, S., Hilk, D., Hillen, B., Hillesheimer, D., Hinz, D., Höhn, T., Holzapfel, B., Holzmann, S., Houdy, T., Howe, M. A., Huber, A., Jansen, A., Kaboth, A., Karl, C., Kazachenko, O., Kellerer, J., Kernert, N., Kippenbrock, L., Kleesiek, M., Klein, M., Köhler, C., Köllenberger, L., Kopmann, A., Korzeczek, M., Kosmider, A., Kovalí, A., Krasch, B., Kraus, M., Krause, H., Kuckert, L., Kuffner, B., Kunka, N., Lasserre, T., Le, T. L., Lebeda, O., Leber, M., Lehnert, B., Letnev, J., Leven, F., Lichter, S., Lobashev, V. M., Lokhov, A., Machatschek, M., Malcherek, E., Müller, K., Mark, M., Marsteller, A., Martin, E. L., Melzer, C., Menshikov, A., Mertens, S., Minter, L. I., Mirz, S., Monreal, B., Guzman, P. I. Morales, Naumann, U., Ndeke, W., Neumann, H., Niemes, S., Noe, M., Oblath, N. S., Ortjohann, H. -W., Osipowicz, A., Ostrick, B., Otten, E., Parno, D. S., Phillips II, D. G., Plischke, P., Pollithy, A., Poon, A. W. P., Pouryamout, J., Prall, M., Priester, F., Röllig, M., Röttele, C., Ranitzsch, P. C. -O., Rest, O., Rinderspacher, R., Robertson, R. G. H., Rodenbeck, C., Rohr, P., Roll, Ch., Rupp, S., Rysavy, M., Sack, R., Saenz, A., Schäfer, P., Schimpf, L., Schlösser, K., Schlösser, M., Schlüter, L., Schön, H., Schönung, K., Schrank, M., Schulz, B., Schwarz, J., Seitz-Moskaliuk, H., Seller, W., Sibille, V., Siegmann, D., Skasyrskaya, A., Slezak, M., Spalek, A., Spanier, F., Steidl, M., Steinbrink, N., Sturm, M., Suesser, M., Sun, M., Tcherniakhovski, D., Telle, H. H., Thümmler, T., Thorne, L. A., Titov, N., Tkachev, I., Trost, N., Urban, K., Venos, D., Valerius, K., VanDevender, B. A., Vianden, R., Hernandez, A. P. Vizcaya, Wall, B. L., Wüstling, S., Weber, M., Weinheimer, C., Weiss, C., Welte, S., Wendel, J., Wierman, K. J., Wilkerson, J. F., Wolf, J., Xu, W., Yen, Y. -R., Zacher, M., Zadorozhny, S., Zboril, M., Zeller, G.

Publikováno v: Phys. Rev. Lett. 123, 221802 (2019)

We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy analyzed by

Externí odkaz: http://arxiv.org/abs/1909.06048

Commissioning of the vacuum system of the KATRIN Main Spectrometer

Autor: Arenz, M., Babutzka, M., Bahr, M., Barrett, J. P., Bauer, S., Beck, M., Beglarian, A., Behrens, J., Bergmann, T., Besserer, U., Blümer, J., Bodine, L. I., Bokeloh, K., Bonn, J., Bornschein, B., Bornschein, L., Büsch, S., Burritt, T. H., Chilingaryan, S., Corona, T. J., De Viveiros, L., Doe, P. J., Dragoun, O., Drexlin, G., Dyba, S., Ebenhöch, S., Eitel, K., Ellinger, E., Enomoto, S., Erhard, M., Eversheim, D., Fedkevych, M., Felden, A., Fischer, S., Formaggio, J. A., Fränkle, F., Furse, D., Ghilea, M., Gil, W., Glück, F., Urena, A. Gonzalez, Görhardt, S., Groh, S., Grohmann, S., Grössle, R., Gumbsheimer, R., Hackenjos, M., Hannen, V., Harms, F., Hauÿmann, N., Heizmann, F., Helbing, K., Herz, W., Hickford, S., Hilk, D., Hillen, B., Höhn, T., Holzapfel, B., Hötzel, M., Howe, M. A., Huber, A., Jansen, A., Kernert, N., Kippenbrock, L., Kleesiek, M., Klein, M., Kopmann, A., Kosmider, A., Kovalík, A., Krasch, B., Kraus, M., Krause, H., Krause, M., Kuckert, L., Kuffner, B., La Cascio, L., Lebeda, O., Leiber, B., Letnev, J., Lobashev, V. M., Lokhov, A., Malcherek, E., Mark, M., Martin, E. L., Mertens, S., Mirz, S., Monreal, B., Müller, K., Neuberger, M., Neumann, H., Niemes, S., Noe, M., Oblath, N. S., Off, A., Ortjohann, H. -W., Osipowicz, A., Otten, E., Parno, D. S., Plischke, P., Poon, A. W. P., Prall, M., Priester, F., Ranitzsch, P. C. -O., Reich, J., Rest, O., Robertson, R. G. H., Röllig, M., Rosendahl, S., Rupp, S., Rysavy, M., Schlösser, K., Schlösser, M., Schönung, K., Schrank, M., Schwarz, J., Seiler, W., Seitz-Moskaliuk, H., Sentkerestiova, J., Skasyrskaya, A., Slezak, M., Spalek, A., Steidl, M., Steinbrink, N., Sturm, M., Suesser, M., Telle, H. H., Thümmler, T., Titov, N., Tkachev, I., Trost, N., Unru, A., Valerius, K., Venos, D., Vianden, R., Vöcking, S., Wall, B. L., Wandkowsky, N., Weber, M., Weinheimer, C., Weiss, C., Welte, S., Wendel, J., Wierman, K. L., Wilkerson, J. F., Winzen, D., Wolf, J., Wüstling, S., Zacher, M., Zadoroghny, S., Zboril, M.

The KATRIN experiment will probe the neutrino mass by measuring the beta-electron energy spectrum near the endpoint of tritium beta-decay. An integral energy analysis will be performed by an electro-static spectrometer (Main Spectrometer), an ultra-h

Externí odkaz: http://arxiv.org/abs/1603.01014

Focal-plane detector system for the KATRIN experiment

Autor: Amsbaugh, J. F., Barrett, J., Beglarian, A., Bergmann, T., Bichsel, H., Bodine, L. I., Bonn, J., Boyd, N. M., Burritt, T. H., Chaoui, Z., Chilingaryan, S., Corona, T. J., Doe, P. J., Dunmore, J. A., Enomoto, S., Fischer, J., Formaggio, J. A., Fränkle, F. M., Furse, D., Gemmeke, H., Glück, F., Harms, F., Harper, G. C., Hartmann, J., Howe, M. A., Kaboth, A., Kelsey, J., Knauer, M., Kopmann, A., Leber, M. L., Martin, E. L., Middleman, K. J., Myers, A. W., Oblath, N. S., Parno, D. S., Peterson, D. A., Petzold, L., Phillips II, D. G., Renschler, P., Robertson, R. G. H., Schwarz, J., Steidl, M., Tcherniakhovski, D., Thümmler, T., Van Wechel, T. D., VanDevender, B. A., Vöcking, S., Wall, B. L., Wierman, K. L., Wilkerson, J. F., Wüstling, S.

Publikováno v: Nucl. Inst. Meth. A 778 (2015) 40-60

The focal-plane detector system for the KArlsruhe TRItium Neutrino (KATRIN) experiment consists of a multi-pixel silicon p-i-n-diode array, custom readout electronics, two superconducting solenoid magnets, an ultra high-vacuum system, a high-vacuum s

Externí odkaz: http://arxiv.org/abs/1404.2925

Stochastic Heating by ECR as a Novel Means of Background Reduction in the KATRIN Spectrometers

Autor: Mertens, S., Beglarian, A., Bornschein, L., Drexlin, G., Fränkle, F. M., Furse, D., Glück, F., Görhardt, S., Krömer, O., Leiber, B., Schlösser, K., Thümmler, T., Wandkowsky, N., Wüstling, S.

The primary objective of the KATRIN experiment is to probe the absolute neutrino mass scale with a sensitivity of 200 meV (90% C.L.) by precision spectroscopy of tritium beta-decay. To achieve this, a low background of the order of 10^(-2) cps in the

Externí odkaz: http://arxiv.org/abs/1205.3729

N=90 region: The decays of {152m,g}Eu to 152Sm

Autor: Kulp, W. D., Wood, J. L., Allmond, J. M., Eimer, J., Furse, D., Krane, K. S., Larimer, R. -M., Loats, J., Norman, E. B., Piechaczek, A., Schmelzenbach, P., Stapels, C. J.

Publikováno v: Phys.Rev.C76:034319,2007

The decays of {152m,g}Eu to 152Sm have been studied by gamma-ray spectroscopy using the 8pi Spectrometer, an array of 20 Compton-suppressed Ge detectors. Very weak gamma-decay branches in 152Sm were investigated through gamma-gamma coincidence spectr

Externí odkaz: http://arxiv.org/abs/nucl-ex/0607025