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48 results on '"Hasinoff, M.D."'

2. New determination of the branching ratio of the structure dependent radiative K+ → e+νγ

Author

Kobayashi, A., primary, Ito, H., additional, Bianchin, S., additional, Cao, T., additional, Djalali, C., additional, Dongwi, D.H., additional, Gautam, T., additional, Gill, D., additional, Hasinoff, M.D., additional, Horie, K., additional, Igarashi, Y., additional, Imazato, J., additional, Kalantarians, N., additional, Kawai, H., additional, Kimura, S., additional, Kodama, S., additional, Kohl, M., additional, Lu, H., additional, Mineev, O., additional, Monaghan, P., additional, Shimizu, S., additional, Tabata, M., additional, Tanuma, R., additional, Toyoda, A., additional, Yamazaki, H., additional, and Yershov, N., additional

Published
2023
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4. An update on the Axion Helioscopes front: current activities at CAST and the IAXO project

Author

Dafni, T., Arik, M., Armengaud, E., Aune, S., Avignone, F.T., Barth, K., Belov, A., Betz, M., Bräuninger, H., Brax, P., Breijnholt, N., Brun, P., Cantatore, G., Carmona, J.M., Carosi, G.P., Caspers, F., Caspi, S., Cetin, S.A., Chelouche, D., Christensen, F.E., Collar, J.I., Dael, A., Davenport, M., Derbin, A.V., Desch, K., Diago, A., Döbrich, B., Dratchnev, I., Dudarev, A., Eleftheriadis, C., Fanourakis, G., Ferrer-Ribas, E., Friedrich, P., Galán, J., García, J.A., Gardikiotis, A., Garza, J.G., Gazis, E.N., Georgiopoulou, E., Geralis, T., Gimeno, B., Giomataris, I., Gninenko, S., Gómez, H., González-Díaz, D., Gruber, E., Guendelman, E., Guthörl, T., Hailey, C.J., Hartmann, R., Hauf, S., Haug, F., Hasinoff, M.D., Hiramatsu, T., Hoffmann, D.H.H., Horns, D., Iguaz, F.J., Irastorza, I.G., Isern, J., Imai, K., Jacoby, J., Jaeckel, J., Jakobsen, A.C., Jakovčić, K., Kaminski, J., Kawasaki, M., Karuza, M., Königsmann, K., Kotthaus, R., Krčmar, M., Kousouris, K., Krieger, C., Kuster, M., Lakić, B., Laurent, J.M., Limousin, O., Lindner, A., Liolios, A., Ljubičić, A., Luzón, G., Matsuki, S., Muratova, V.N., Neff, S., Niinikoski, T., Nones, C., Ortega, I., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Redondo, J., Riege, H., Ringwald, A., Rodríguez, A., Rosu, M., Russenschuck, S., Ruz, J., Saikawa, K., Savvidis, I., Sekiguchi, T., Semertzidis, Y.K., Shilon, I., Sikivie, P., Silva, H., Solanki, S.K., Stewart, L., ten Kate, H.H.J., Tomas, A., Troitsky, S., Vafeiadis, T., van Bibber, K., Vedrine, P., Villar, J.A., Vogel, J.K., Walckiers, L., Weltman, A., Wester, W., Yildiz, S.C., and Zioutas, K.

Published
2016
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5. New determination of the branching ratio of the structure dependent radiative →

Author

Kobayashi, A., Ito, H., Bianchin, S., Cao, T., Djalali, C., Dongwi, D.H., Gautam, T., Gill, D., Hasinoff, M.D., Horie, K., Igarashi, Y., Imazato, J., Kalantarians, N., Kawai, H., Kimura, S., Kodama, S., Kohl, M., Lu, H., Mineev, O., Monaghan, P., Shimizu, S., Tabata, M., Tanuma, R., Toyoda, A., Yamazaki, H., and Yershov, N.

Abstract

The branching ratio of the structure dependent (SD) radiative K+→e+νeγ decay relative to that of the K+→e+νe(γ) decay including the internal bremsstrahlung (IB) process (Ke2(γ)) has been measured in the J-PARC E36 experiment using plastic scintillator/lead sandwich detectors, in contrast to the previous E36 measurement, which used a CsI(Tl) calorimeter. In the analysis, the effect of IB was also taken into account in the SD radiative decay as Ke2γ(γ)SD. By combining the new data with the previous E36 result after revision for the IB correction for Ke2γ(γ)SD, a new value Br(Ke2γ(γ)SD)/Br(Ke2(γ))=1.20±0.07 has been determined. This is consistent with a recent lattice QCD calculation, but larger than the expectation of Chiral Perturbation Theory (ChPT) at order O(p4) and the previous KLOE value. Using the method to relate form factor and branching ratio described in the KLOE paper, the present result is also consistent with the form factor prediction based on a gauged nonlocal chiral quark model, but larger than that from ChPT at order O(p6).

Published
2023

6. Measurement of structure dependent radiative K+ → e+νγ decays using stopped positive kaons

Author

Ito, H., primary, Kobayashi, A., additional, Bianchin, S., additional, Cao, T., additional, Djalali, C., additional, Dongwi, D.H., additional, Gautam, T., additional, Gill, D., additional, Hasinoff, M.D., additional, Horie, K., additional, Igarashi, Y., additional, Imazato, J., additional, Kalantarians, N., additional, Kawai, H., additional, Kimura, S., additional, Kodama, S., additional, Kohl, M., additional, Lu, H., additional, Mineev, O., additional, Monaghan, P., additional, Shimizu, S., additional, Strauch, S., additional, Tabata, M., additional, Tanuma, R., additional, Toyoda, A., additional, Yamazaki, H., additional, and Yershov, N., additional

Published
2022
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7. Prospects for the CERN Axion Solar Telescope sensitivity to 14.4 keV axions

Author

Jakovčić, K., Andriamonje, S., Aune, S., Avignone, F., Barth, K., Belov, A., Beltrán, B., Bräuninger, H., Carmona, J.M., Cebrián, S., Collar, J.I., Dafni, T., Davenport, M., Di Lella, L., Eleftheriadis, C., Fanourakis, G., Ferrer Ribas, E., Fischer, H., Franz, J., Friedrich, P., Geralis, T., Giomataris, I., Gninenko, S., Hasinoff, M.D., Heinsius, F.H., Hoffmann, D.H.H., Irastorza, I.G., Jacoby, J., Kang, D., Königsmann, K., Kotthaus, R., Krčmar, M., Kousouris, K., Kuster, M., Lakić, B., Lasseur, C., Liolios, A., Ljubičić, A., Lutz, G., Luzón, G., Miller, D.W., Morales, A., Morales, J., Ortiz, A., Papaevangelou, T., Placci, A., Raffelt, G., Ruz, J., Riege, H., Semertzidis, Y., Serpico, P., Stewart, L., Vieira, J.D., Villar, J., Vogel, J., Walckiers, L., and Zioutas, K.

Published
2007
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8. First results on the search for chameleons with the KWISP detector at CAST

Author

Arguedas Cuendis, S., primary, Baier, J., additional, Barth, K., additional, Baum, S., additional, Bayirli, A., additional, Belov, A., additional, Bräuninger, H., additional, Cantatore, G., additional, Carmona, J.M., additional, Castel, J.F., additional, Cetin, S.A., additional, Dafni, T., additional, Davenport, M., additional, Dermenev, A., additional, Desch, K., additional, Döbrich, B., additional, Fischer, H., additional, Funk, W., additional, García, J.A., additional, Gardikiotis, A., additional, Garza, J.G., additional, Gninenko, S., additional, Hasinoff, M.D., additional, Hoffmann, D.H.H., additional, Iguaz, F.J., additional, Irastorza, I.G., additional, Jakovčić, K., additional, Kaminski, J., additional, Karuza, M., additional, Krieger, C., additional, Lakić, B., additional, Laurent, J.M., additional, Luzón, G., additional, Maroudas, M., additional, Miceli, L., additional, Neff, S., additional, Ortega, I., additional, Ozbey, A., additional, Pivovaroff, M.J., additional, Rosu, M., additional, Ruz, J., additional, Chóliz, E. Ruiz, additional, Schmidt, S., additional, Schumann, M., additional, Semertzidis, Y.K., additional, Solanki, S.K., additional, Stewart, L., additional, Tsagris, I., additional, Vafeiadis, T., additional, Vogel, J.K., additional, Vretenar, M., additional, Yildiz, S.C., additional, and Zioutas, K., additional

Published
2019
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9. Improved search for solar chameleons with a GridPix detector at CAST

Author

Anastassopoulos, V., primary, Aune, S., additional, Barth, K., additional, Belov, A., additional, Bräuninger, H., additional, Cantatore, G., additional, Carmona, J.M., additional, Castel, J.F., additional, Cetin, S.A., additional, Christensen, F., additional, Dafni, T., additional, Davenport, M., additional, Dermenev, A., additional, Desch, K., additional, Döbrich, B., additional, Eleftheriadis, C., additional, Fanourakis, G., additional, Ferrer-Ribas, E., additional, Fischer, H., additional, Funk, W., additional, Garc𝚤a, J.A., additional, Gardikiotis, A., additional, Garza, J.G., additional, Gazis, E.N., additional, Geralis, T., additional, Giomataris, I., additional, Gninenko, S., additional, Hailey, C.J., additional, Hasinoff, M.D., additional, Hoffmann, D.H.H., additional, Iguaz, F.J., additional, Irastorza, I.G., additional, Jakobsen, A., additional, Jacoby, J., additional, Jakovčić, K., additional, Kaminski, J., additional, Karuza, M., additional, Kostoglou, S., additional, Kralj, N., additional, Krčmar, M., additional, Krieger, C., additional, Lakić, B., additional, Laurent, J. M., additional, Liolios, A., additional, Ljubičić, A., additional, Luzón, G., additional, Maroudas, M., additional, Miceli, L., additional, Neff, S., additional, Ortega, I., additional, Papaevangelou, T., additional, Paraschou, K., additional, Pivovaroff, M.J., additional, Raffelt, G., additional, Rosu, M., additional, Ruz, J., additional, Chóliz, E. Ruiz, additional, Savvidis, I., additional, Schmidt, S., additional, Semertzidis, Y.K., additional, Solanki, S.K., additional, Stewart, L., additional, Vafeiadis, T., additional, Vogel, J.K., additional, Vretenar, M., additional, Wuensch, W., additional, Yildiz, S.C., additional, Zioutas, K., additional, and Brax, P., additional

Published
2019
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10. Performance check of the CsI(Tl) calorimeter for the J-PARC E36 experiment by observing e+ from muon decay

Author

Ito, H., primary, Horie, K., additional, Shimizu, S., additional, Bianchin, S., additional, Djalali, C., additional, Dongwi, B., additional, Gill, D., additional, Hasinoff, M.D., additional, Igarashi, Y., additional, Imazato, J., additional, Kalantarians, N., additional, Kawai, H., additional, Kimura, S., additional, Kobayashi, A., additional, Kodama, S., additional, Kohl, M., additional, Lu, H., additional, Mineev, O., additional, Tabata, M., additional, Tanuma, R., additional, and Yershov, N., additional

Published
2018
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11. New solar axion search in CAST with $^4$He filling

Author

Arik, M., Aune, S., Barth, K., Belov, A., Bräuninger, H., Bremer, J., Burwitz, V., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Da Riva, E., Dafni, T., Davenport, M., Dermenev, A., Eleftheriadis, C., Elias, N., Fanourakis, G., Ferrer-Ribas, E., Galán, J., García, J. A., Gardikiotis, A., Garza, J.G., Gazis, E.N., Geralis, T., Georgiopoulou, E., Giomataris, I., Gninenko, S., Gómez Marzoa, M., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovčić, K., Karuza, M., Kavuk, M., Krčmar, M., Kuster, M., Lakić, B., Laurent, J.M., Liolios, A., Ljubičić, A., Luzón, G., Neff, S., Niinikoski, T., Nordt, A., Ortega, I., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Shilon, I., Solanki, S.K., Stewart, L., Tomás, A., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., and Zioutas, K.

Subjects
High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The CERN Axion Solar Telescope (CAST) searches for $a\to\gamma$ conversion in the 9 T magnetic field of a refurbished LHC test magnet that can be directed toward the Sun. Two parallel magnet bores can be filled with helium of adjustable pressure to match the X-ray refractive mass $m_\gamma$ to the axion search mass $m_a$. After the vacuum phase (2003--2004), which is optimal for $m_a\lesssim0.02$ eV, we used $^4$He in 2005--2007 to cover the mass range of 0.02--0.39 eV and $^3$He in 2009--2011 to scan from 0.39--1.17 eV. After improving the detectors and shielding, we returned to $^4$He in 2012 to investigate a narrow $m_a$ range around 0.2 eV ("candidate setting" of our earlier search) and 0.39--0.42 eV, the upper axion mass range reachable with $^4$He, to "cross the axion line" for the KSVZ model. We have improved the limit on the axion-photon coupling to $g_{a\gamma}< 1.47\times10^{-10} {\rm GeV}^{-1}$ (95% C.L.), depending on the pressure settings. Since 2013, we have returned to vacuum and aim for a significant increase in sensitivity., Comment: CAST Collaboration 6 pages 3 figures

Published
2015

12. New solar axion search using the CERN Axion Solar Telescope with He4 filling

Author

Arik, M., Aune, S., Barth, K., Belov, A., Bräuninger, H., Bremer, J., Burwitz, V., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Da Riva, E., Dafni, T., Davenport, M., Dermenev, A., Eleftheriadis, C., Elias, N., Fanourakis, G., Ferrer-Ribas, E., Galván, J., García, J.A., Gardikiotis, A., Garza, J.G., Gazis, E.N., Geralis, T., Georgiopoulou, E., Giomataris, I., Gninenko, S., Gómez Marzoa, M., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovcic, K., Karuza, M., Kavuk, M., Krcmar, M., Kuster, M., Lakic, B., Laurent, J.M., Liolios, A., Ljubicic, A., Luzón, G., Neff, S., Niinikoski, T., Nordt, A., Ortega, I., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Shilon, I., Solanki, S.K., Stewart, L., Tomás, A., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., and Zioutas, K.

Subjects
strong cp problem, coherent conversion, cast experiment, magnetic-field, invariance, detectors, photons
Abstract

The CERN Axion Solar Telescope (CAST) searches for a -> gamma conversion in the 9 T magnetic field of a refurbished LHC test magnet that can be directed toward the Sun. Two parallel magnet bores can be filled with helium of adjustable pressure to match the x-ray refractive mass m_gamma to the axion search mass m_a. After the vacuum phase (2003-2004), which is optimal for m_a less than or similar to 0.02 eV, we used He-4 in 2005-2007 to cover the mass range of 0.02-0.39 eV and He-3 in 2009-2011 to scan from 0.39 to 1.17 eV. After improving the detectors and shielding, we returned to He-4 in 2012 to investigate a narrow m_a range around 0.2 eV ("candidate setting" of our earlier search) and 0.39-0.42 eV, the upper axion mass range reachable with He-4, to "cross the axion line" for the KSVZ model. We have improved the limit on the axion-photon coupling to g_a_gamma < 1.47 x 10^(-10) GeV^(-1) (95% C.L.), depending on the pressure settings. Since 2013, we have returned to the vacuum and aim for a significant increase in sensitivity.

Published
2015

13. Search for solar axions by the CERN axion solar telescope with He 3 buffer gas: Closing the hot dark matter gap

Author

Arik, M., Aune, S., Barth, K., Belov, A., Borghi, S., Bräuninger, H., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Da Riva, E., Dafni, T., Davenport, M., Eleftheriadis, C., Elias, N., Fanourakis, G., Ferrer-Ribas, E., Friedrich, P., Galán, J., García, J.A., Gardikiotis, A., Garza, J.G., Gazis, E.N., Geralis, T., Georgiopoulou, E., Giomataris, I., Gninenko, S., Gómez, H., Gómez Marzoa, M., Gruber, E., Guthörl, T., Hartmann, R., Hauf, S., Haug, F., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovcic, K., Karuza, M., Königsmann, K., Kotthaus, R., Krcmar, M., Kuster, M., Lakic, B., Lang, P.M., Laurent, J.M., Liolios, A., Ljubicic, A., Luzón, G., Neff, S., Niinikoski, T., Nordt, A., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Riege, H., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Shilon, I., Silva, P.S., Solanki, S.K., Stewart, L., Tomás, A., Tsagri, M., Van Bibber, K., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., and Zioutas, K.

Subjects
Physics::Instrumentation and Detectors, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics
Abstract

The CERN Axion Solar Telescope has finished its search for solar axions with 3He buffer gas, covering the search range 0.64 eV ¿ ma ¿ 1.17 eV. This closes the gap to the cosmological hot dark matter limit and actually overlaps with it. From the absence of excess x rays when the magnet was pointing to the Sun we set a typical upper limit on the axion-photon coupling of ga¿ ¿ 3.3 × 10-10 GeV-1 at 95% C.L., with the exact value depending on the pressure setting. Future direct solar axion searches will focus on increasing the sensitivity to smaller values of ga¿, for example by the currently discussed next generation helioscope International AXion Observatory.

Published
2014

14. Search for solar axions by the CERN axion solar telescope with 3He buffer gas: closing the hot dark matter gap

Author

Arik, M., Aune, S., Barth, K., Belov, A., Borghi, S., Bräuninger, H., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Da Riva, E., Dafni, T., Davenport, M., Eleftheriadis, C., Elias, N., Fanourakis, G., Ferrer-Ribas, E., Friedrich, P., Galán, J., García, J.A., Gardikiotis, A., Garza, J.G., Gazis, E.N., Geralis, T., Georgiopoulou, E., Giomataris, I., Gninenko, S., Gómez, H., Gómez Marzoa, M., Gruber, E., Guthörl, T., Hartmann, R., Hauf, S., Haug, F., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovčić, Krešimir, Karuza, Marin, Königsmann, K., Kotthaus, R., Krčmar, Milica, Kuster, M., Lakić, Biljana, Lang, P.M., Laurent, J.M., Liolios, A., Ljubičić, Ante, Luzón, G., Neff, S., Niinikoski, T., Nordt, A., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Riege, H., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Shilon, I., Silva, P.S., Solanki, S.K., Stewart, L., Tomás, A., Tsagri, M., van Bibber, K., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., and Zioutas, K.

Subjects
Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, solar axions, photons, dark matter
Abstract

The CERN Axion Solar Telescope has finished its search for solar axions with 3He buffer gas, covering the search range 0.64 eV < m_a < 1.17 eV. This closes the gap to the cosmological hot dark matter limit and actually overlaps with it. From the absence of excess X-rays when the magnet was pointing to the Sun we set a typical upper limit on the axion-photon coupling of g_aγ < 3.3×10^(−10) GeV^(−1) at 95% C.L., with the exact value depending on the pressure setting. Future direct solar axion searches will focus on increasing the sensitivity to smaller values of g_aγ, for example by the currently discussed next generation helioscope International AXion Observatory.

Published
2013

15. Search for Solar Axions by the CERN Axion Solar Telescope with 3 He Buffer Gas: Closing the Hot Dark Matter Gap

Author

Arik, M., Aune, S., Barth, K., Belov, A., Borghi, S., Bräuninger, H., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Da Riva, E., Dafni, T., Davenport, M., Eleftheriadis, C., Elias, N., Fanourakis, G., Ferrer-Ribas, E., Friedrich, P., Galán, J., García, J.A., Gardikiotis, A., Garza, J.G., Gazis, E.N., Geralis, T., Georgiopoulou, E., Giomataris, I., Gninenko, S., Gómez, H., Gómez Marzoa, M., Gruber, E., Guthörl, T., Hartmann, R., Hauf, S., Haug, F., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovčić, K., Karuza, M., Königsmann, K., Kotthaus, R., Krčmar, M., Kuster, M., Lakić, B., Lang, P.M., Laurent, J.M., Liolios, A., Ljubičić, A., Lozza, V., Luzón, G., Neff, S., Niinikoski, T., Nordt, A., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Riege, H., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Shilon, I., Silva, P.S., Solanki, S.K., Stewart, L., Tomás, A., Tsagri, M., van Bibber, K., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., and Zioutas, K.

Subjects
Particle Physics - Experiment
Abstract

The CERN Axion Solar Telescope (CAST) has finished its search for solar axions with 3^He buffer gas, covering the search range 0.64 eV < m_a The CERN Axion Solar Telescope has finished its search for solar axions with He3 buffer gas, covering the search range 0.64 eV≲ma≲1.17

Published
2013

16. Search for solar axions with the CAST experiment

Author

Lakić, Biljana, Aune, S., Barth, K., Belov, A., Borghi, S., Bräuninger, H., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Dafni, T., Davenport, M., Eleftheriadis, C., Elias, N., Ezer, C., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., Franz, J., Friedrich, P., Galán, J., Gardikiotis, A., Gazis, E.N., Geralis, T., Giomataris, I., Gninenko, S., Gómez, H., Gruber, E., Guthörl, T., Hartmann, R., Haug, F., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovčić, Krešimir, Kang, D., Karageorgopoulou, T., Karuza, Marin, Königsmann, K., Kotthaus, R., Krčmar, Milica, Kousouris, K., Kuster, M., Lang, P., Lasseur, C., Laurent, J.M., Liolios, A., Ljubičić, Ante, Lozza, V., Lutz, G., Luzón, G., Miller, D.W., Mirizzi, A., Morales, J., Niinikoski, T., Nordt, A., Papaevangelou, T., Pivovaroff, M.J., Raiteri, G., Raffelt, G., Rashba, T., Riege, H., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Semertzidis, Y., Serpico, P., Silva, P.S., Solanki, S.K., Soufli, R., Stewart, L., Tomás, A., Tsagri, M., van Bibber, K., Vafeiadis, T., Villar, J., Vogel, J.K., Walckiers, L., Wong, Y., Yildiz, S.C., Zioutas, K, O'Loughlin, Martyn, Stanič, Samo, and Veberič, Darko

Subjects
High Energy Physics::Theory, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, axions, solar physics, dark matter
Abstract

Axions are hypothetical particles arising in models which may solve the CP problem of strong interactions. They are practically stable neutral pseudoscalar particles and also viable candidates for the dark matter of the Universe. Most of the axion experimental searches are based on the axion coupling to two photons. As a consequence of this coupling, axion could transform into photon and vice versa in external electric and magnetic fields. Axions could be produced in the solar core by conversion of thermal photons in the Coulomb fields of nuclei and electrons – the Primakoff process, and back-converted into photons in a laboratory magnetic field. The CERN Axion Solar Telescope (CAST) is designed to search for these axions by using a Large Hadron Collider prototype dipole magnet which follows the Sun during sunrise and sunset throughout the year. To explore as wide as possible range of axion masses, the operation of CAST is divided in two phases. During the phase I the experiment operated with vacuum inside the magnet bores and scanned axion masses up to 0.02 eV. In order to extend the sensitivity to higher axion masses, the magnet bores are filled with a buffer gas at various densities. In the first part of the CAST phase II, 4He was used as a buffer gas. In the ongoing second part of the phase II, CAST has been using 3He to cover axion masses up to 1 eV. So far, no evidence of axion signal has been found and CAST set the most stringent experimental limit on the axion-photon coupling constant over a broad range of axion masses.

Published
2011

17. Search for chameleons with CAST

Author

Anastassopoulos, V., primary, Arik, M., additional, Aune, S., additional, Barth, K., additional, Belov, A., additional, Bräuninger, H., additional, Cantatore, G., additional, Carmona, J.M., additional, Cetin, S.A., additional, Christensen, F., additional, Collar, J.I., additional, Dafni, T., additional, Davenport, M., additional, Desch, K., additional, Dermenev, A., additional, Eleftheriadis, C., additional, Fanourakis, G., additional, Ferrer-Ribas, E., additional, Friedrich, P., additional, Galán, J., additional, García, J.A., additional, Gardikiotis, A., additional, Garza, J.G., additional, Gazis, E.N., additional, Geralis, T., additional, Giomataris, I., additional, Hailey, C., additional, Haug, F., additional, Hasinoff, M.D., additional, Hoffmann, D.H.H., additional, Iguaz, F.J., additional, Irastorza, I.G., additional, Jacoby, J., additional, Jakobsen, A., additional, Jakovčić, K., additional, Kaminski, J., additional, Karuza, M., additional, Kavuk, M., additional, Krčmar, M., additional, Krieger, C., additional, Krüger, A., additional, Lakić, B., additional, Laurent, J.M., additional, Liolios, A., additional, Ljubičić, A., additional, Luzón, G., additional, Neff, S., additional, Ortega, I., additional, Papaevangelou, T., additional, Pivovaroff, M.J., additional, Raffelt, G., additional, Riege, H., additional, Rosu, M., additional, Ruz, J., additional, Savvidis, I., additional, Solanki, S.K., additional, Vafeiadis, T., additional, Villar, J.A., additional, Vogel, J.K., additional, Yildiz, S.C., additional, Zioutas, K., additional, Brax, P., additional, Lavrentyev, I., additional, and Upadhye, A., additional

Published
2015
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18. Search for Solar Axions: CAST

Author

Lakić, Biljana, Andriamonje, S., Aune, S., Autiero, D., Avignone, F., Barth, K., Belov, A., Beltrán, B., Bräuninger, H., Carmona, J.M., Cebrián, S., Chesi, E., Collar, J.I., Creswick, R., Dafni, T., Davenport, M., Di Lella, L., Eleftheriadis, C., Englhauser, J., Fanourakis, G., Farach, H., Ferrer, E., Fischer, H., Franz, J., Friedrich, P., Geralis, T., Giomataris, I., Gninenko, S., Goloubev, N., Hartmann, R., Hasinoff, M.D., Heinsius, F.H., Hoffmann, D.H.H., Irastorza, I.G., Jacoby, J., Kang, D., Königsmann, K., Kotthaus, R., Krčmar, Milica, Kousouris, K., Kuster, M., Lasseur, C., Liolios, A., Ljubičić, Ante, Lutz, G., Luzón, G., Miller, D.W, Morales, A., Morales, J., Ortiz, A., Papaevangelou, T., Placci, A., Raffelt, G., Ruz, J., Riege, H., Sarsa, M.L., Savvidis, I., Serpico, P., Semertzidis, Y., Stewart, L., Vieira, J.D., Villar, J., Walckiers, L., Zachariadou, K., and Zioutas, K.

Subjects
Physics::Instrumentation and Detectors, Physics, High Energy Physics::Phenomenology, solar axions, axion-photon coupling
Abstract

The CERN Axion Solar Telescope (CAST) is searching for axions produced in the Sun´s core by the Primakoff process. CAST is using a decommissioned Large Hadron Collider (LHC) test magnet where axions could be converted back into X-rays with energies up to 10 keV. Analysis of the 2003 data showed no signal above background implying an upper limit for the axion-photon coupling constant g_(a gamma) < 1.16 × 10^(-10) GeV^(-1) at 95% C.L. for m_a < = 0.02 eV [1]. The higher quality 2004 data is presently under analysis. CAST Phase II is scheduled to start in late 2005. This will be the first step in extending CAST´s sensitivity to axion rest masses up to 1 eV.

Published
2007

19. CAST search for sub-eV mass solar axions with 3He buffer gas

Author

Graduate School of Business & Public Policy (GSBPP), Arik, M., Aune, S., Barth, K., Belov, A., Borghi, S., Bräuninger, H., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Dafni, T., Davenport, M., Eleftheriadis, C., Elias, N., Ezer, C., Fanourakis, G., Ferrer-Ribas, E., Friedrich, P., Galán, J., García, J.A., Gardikiotis, A., Gazis, E.N., Geralis, T., Giomataris, I., Gninenko, S., Gómez, H., Gruber, E., Guthörl, T., Hartmann, R., Haug, F., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovčić, K., Karuza, M., Königsmann, K., Kotthaus, R., Krčmar, M., Kuster, M., Lakić, B., Laurent, J.M., Liolios, A., Ljubičić, A., Lozza, V., Lutz, G., Luzón, G., Morales, J., Niinikoski, T., Nordt, A., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Rashba, T., Riege, H., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Silva, P.S., Solanki, S.K., Stewart, L., Tomás, A., Tsagri, M., van Bibber, K., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., Zioutas, K.(CAST Collaboration), Graduate School of Business & Public Policy (GSBPP), Arik, M., Aune, S., Barth, K., Belov, A., Borghi, S., Bräuninger, H., Cantatore, G., Carmona, J.M., Cetin, S.A., Collar, J.I., Dafni, T., Davenport, M., Eleftheriadis, C., Elias, N., Ezer, C., Fanourakis, G., Ferrer-Ribas, E., Friedrich, P., Galán, J., García, J.A., Gardikiotis, A., Gazis, E.N., Geralis, T., Giomataris, I., Gninenko, S., Gómez, H., Gruber, E., Guthörl, T., Hartmann, R., Haug, F., Hasinoff, M.D., Hoffmann, D.H.H., Iguaz, F.J., Irastorza, I.G., Jacoby, J., Jakovčić, K., Karuza, M., Königsmann, K., Kotthaus, R., Krčmar, M., Kuster, M., Lakić, B., Laurent, J.M., Liolios, A., Ljubičić, A., Lozza, V., Lutz, G., Luzón, G., Morales, J., Niinikoski, T., Nordt, A., Papaevangelou, T., Pivovaroff, M.J., Raffelt, G., Rashba, T., Riege, H., Rodríguez, A., Rosu, M., Ruz, J., Savvidis, I., Silva, P.S., Solanki, S.K., Stewart, L., Tomás, A., Tsagri, M., van Bibber, K., Vafeiadis, T., Villar, J., Vogel, J.K., Yildiz, S.C., and Zioutas, K.(CAST Collaboration)

Abstract

The CERN Axion Solar Telescope (CAST) has extended its search for solar axions by using 3He as a buffer gas. At T=1.8 K this allows for larger pressure settings and hence sensitivity to higher axion masses than our previous measurements with 4He. With about 1 h of data taking at each of 252 different pressure settings we have scanned the axion mass range 0.39 eV < m_a < 0.64 eV. From the absence of excess X-rays when the magnet was pointing to the Sun we set a typical upper limit on the axion-photon coupling of g_ag < 2.3 x 10^{-10} GeV^{-1} at 95% CL, the exact value depending on the pressure setting. KSVZ axions are excluded at the upper end of our mass range, the first time ever for any solar axion search. In future we will extend our search to m_a < 1.15 eV, comfortably overlapping with cosmological hot dark matter bounds.

Published
2012

20. CAST constraints on the axion-electron coupling

Author

Barth, K, primary, Belov, A, additional, Beltran, B, additional, Bräuninger, H, additional, Carmona, J.M, additional, Collar, J.I, additional, Dafni, T, additional, Davenport, M, additional, Lella, L. Di, additional, Eleftheriadis, C, additional, Englhauser, J, additional, Fanourakis, G, additional, Ferrer-Ribas, E, additional, Fischer, H, additional, Franz, J, additional, Friedrich, P, additional, Galán, J, additional, García, J.A, additional, Geralis, T, additional, Giomataris, I, additional, Gninenko, S, additional, Gómez, H, additional, Hasinoff, M.D, additional, Heinsius, F.H, additional, Hoffmann, D.H.H, additional, Irastorza, I.G, additional, Jacoby, J, additional, Jakovčić, K, additional, Kang, D, additional, Königsmann, K, additional, Kotthaus, R, additional, Kousouris, K, additional, Krčmar, M, additional, Kuster, M, additional, Lakić, B, additional, Liolios, A, additional, Ljubičić, A, additional, Lutz, G, additional, Luzón, G, additional, Miller, D.W, additional, Papaevangelou, T, additional, Pivovaroff, M.J, additional, Raffelt, G, additional, Redondo, J, additional, Riege, H, additional, Rodríguez, A, additional, Ruz, J, additional, Savvidis, I, additional, Semertzidis, Y, additional, Stewart, L, additional, Bibber, K. Van, additional, Vieira, J.D, additional, Villar, J.A, additional, Vogel, J.K, additional, Walckiers, L, additional, and Zioutas, K, additional

Published
2013
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21. Prospects for the CERN Axion Solar Telescope sensitivity to 14.4keV axions

Author

Jakovčić, K., primary, Andriamonje, S., additional, Aune, S., additional, Avignone, F., additional, Barth, K., additional, Belov, A., additional, Beltrán, B., additional, Bräuninger, H., additional, Carmona, J.M., additional, Cebrián, S., additional, Collar, J.I., additional, Dafni, T., additional, Davenport, M., additional, Di Lella, L., additional, Eleftheriadis, C., additional, Fanourakis, G., additional, Ferrer Ribas, E., additional, Fischer, H., additional, Franz, J., additional, Friedrich, P., additional, Geralis, T., additional, Giomataris, I., additional, Gninenko, S., additional, Hasinoff, M.D., additional, Heinsius, F.H., additional, Hoffmann, D.H.H., additional, Irastorza, I.G., additional, Jacoby, J., additional, Kang, D., additional, Königsmann, K., additional, Kotthaus, R., additional, Krčmar, M., additional, Kousouris, K., additional, Kuster, M., additional, Lakić, B., additional, Lasseur, C., additional, Liolios, A., additional, Ljubičić, A., additional, Lutz, G., additional, Luzón, G., additional, Miller, D.W., additional, Morales, A., additional, Morales, J., additional, Ortiz, A., additional, Papaevangelou, T., additional, Placci, A., additional, Raffelt, G., additional, Ruz, J., additional, Riege, H., additional, Semertzidis, Y., additional, Serpico, P., additional, Stewart, L., additional, Vieira, J.D., additional, Villar, J., additional, Vogel, J., additional, Walckiers, L., additional, and Zioutas, K., additional

Published
2007
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23. Laser polarized muonic 3He and spin dependent μ− capture

Author

Souder, P.A., primary, Bogorad, P.L., additional, Brash, E.J., additional, Cates, G.D., additional, Cummings, W.J., additional, Gorelov, A., additional, Hasinoff, M.D., additional, Hausser, O., additional, Hicks, K., additional, Holmes, R., additional, Huang, J.C., additional, Kumar, K.S., additional, Larson, B., additional, Lorenzon, W., additional, McCracken, J., additional, Michaux, P., additional, Middleton, H., additional, Saettler, E., additional, Siegel, D., additional, Tupa, D., additional, Wang, X., additional, and Young, A., additional

Published
1998
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24. A combined polarized target/ionization chamber for measuring the spin dependence of nuclear muon capture in laser polarized muonic 3He

Author

Bogorad, P., primary, Brash, E.J., additional, Cates, G.D., additional, Cummings, W.J., additional, Gorelov, A., additional, Hasinoff, M.D., additional, Hausser, O., additional, Hicks, K., additional, Holmes, R., additional, Huang, J.C., additional, Krieger, D., additional, Kumar, K.S., additional, Larson, B., additional, Lorenzon, W., additional, McCracken, J., additional, Michaux, P., additional, Middleton, H., additional, Saettler, E., additional, Siegel, D., additional, Souder, P.A., additional, Swenson, D.R., additional, Thywissen, J., additional, Tupa, D., additional, Ullom, J., additional, Wang, X., additional, and Young, A.R., additional

Published
1997
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28. The TRIUMF radiative muon capture facility

Author

Wright, D.H., primary, Ahmad, S., additional, Armstrong, D.S., additional, Azuelos, G., additional, Bertl, W., additional, Blecher, M., additional, Chen, C.Q., additional, Gorringe, T.P., additional, Hasinoff, M.D., additional, Henderson, R.S., additional, Macdonald, J.A., additional, Poutissou, J.M., additional, Poutissou, R., additional, Robertson, B.C., additional, Sample, D.G., additional, Serna-Angel, A., additional, Taylor, G., additional, and Zhang, N.S., additional

Published
1992
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31. Radiative muon capture on carbon, oxygen, and calcium

Author

Blecher, M., primary, Ahmad, S., additional, Armstrong, D.S., additional, Azuelos, G., additional, Burnham, R.A., additional, Clifford, E.T.H., additional, Depommier, P., additional, Gorringe, T.P., additional, Hasinoff, M.D., additional, Larabee, A.J., additional, Macdonald, J.A., additional, Mes, H., additional, Numao, T., additional, Poutissou, J.-M., additional, Poutissou, R., additional, Robertson, B.C., additional, Summhammer, J., additional, Waltham, C.W., additional, and Wright, D.H., additional

Published
1990
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32. Weak radiative hyperon decays

Author

Roberts, B.L., primary, Bassalleck, B., additional, Booth, E.C., additional, Fickinger, W.J., additional, Gall, K.P., additional, Hall, J.R., additional, Hallin, A.L., additional, Hasinoff, M.D., additional, Hessey, N.P., additional, Horváth, D., additional, Larson, K.D., additional, Lowe, J., additional, McIntyre, E.K., additional, Measday, D.F., additional, Miller, J.P., additional, Noble, A.J., additional, Robinson, D.K., additional, Sakitt, M., additional, Salomon, M., additional, Waltham, C.E., additional, Whitehouse, D.A., additional, and Wolfe, D.M., additional

Published
1990
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33. Energy distributions of photons in the 12C(π−, 2γ)reaction

Author

Mazzucato, E., Bassalleck, B., Hasinoff, M.D., Marks, T., Poutissou, J.M., and Salomon, M.

Abstract

We have measured the photon energy spectra, angular distribution, and total branching ratio for the 12C(π−, γγ)X process for stopped pions. The branching ratio for photons with energies higher than 17 MeV is (1.2 ± 0.2) × 10−5, which is slightly lower than that of an experiment published recently. The energy distributions of the photons exhibit a shape, characteristic of a momentum-dependent bremsstrahlung mechanism, in agreement with a recent calculation based on a conventional nuclear model with no enhancement in the pion field.

Published
1980
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34. The triumf stopped π−μ channel

Author

Al-Qazzaz, N.M.M., primary, Beer, G.A., additional, Mason, G.R., additional, Olin, A., additional, Pearce, R.M., additional, Bryman, D.A., additional, MacDonald, J.A., additional, Poutissou, J.-M., additional, Reeve, P.A., additional, Hasinoff, M.D., additional, and Suzuki, T., additional

Published
1980
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35. High-energy levels in 13N (II)

Author

Berghofer, D., primary, Hasinoff, M.D., additional, Helmer, R., additional, Lim, S.T., additional, Measday, D.F., additional, and Ebisawa, K., additional

Published
1976
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42. The Panofsky ratio in 3He

Author

Corriveau, F., primary, Hasinoff, M.D., additional, Measday, D.F., additional, Poutissou, J.-M., additional, and Salomon, M., additional

Published
1987
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44. A remeasurement of the Panofsky ratio

Author

Spuller, J., primary, Berghofer, D., additional, Hasinoff, M.D., additional, Macdonald, R., additional, Measday, D.F., additional, Salomon, M., additional, Suzuki, T., additional, Poutissou, J.-M., additional, Poutissou, R., additional, and Lee, J.K.P., additional

Published
1977
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47. Search for <f>d&ast;</f> dibaryon by double-radiative capture on pionic deuterium

Author

Żolnierczuk, P.A., Gorringe, T.P., Hasinoff, M.D., Kovash, M.A., Tripathi, S., and Wright, D.H.

Subjects
*DEUTERIUM, *CYCLOTRONS
Abstract

We report a search for d&ast; dibaryon production by double-radiative capture on pionic deuterium. The experiment was conducted at the TRIUMF cyclotron using the RMC cylindrical pair spectrometer, and detected γ-ray coincidences following pion stops in liquid deuterium. We found no evidence for narrow dibaryons, and obtained a branching ratio upper limit, BR<6.7×10−6 (90% C.L.), for narrow d&ast; production in the mass range from 1920 to 1980 MeV. [Copyright &y& Elsevier]

Published
2002

48. Search for exotic baryons in double radiative capture on pionic hydrogen

Author

Żołnierczuk, P.A., Armstrong, D.S., Christy, E., Clark, J.H.D., Gorringe, T.P., Hasinoff, M.D., Kovash, M.A., Tripathi, S., and Wright, D.H.

Subjects
*ELECTROMAGNETIC waves, *NUCLEAR reactions, *PARTICLES (Nuclear physics), *SPECTRUM analysis instruments
Abstract

Abstract: We report a search for low-lying exotic baryons via double radiative capture on pionic hydrogen. The data were collected at the TRIUMF cyclotron using the RMC spectrometer by detecting gamma-ray pairs from pion stops in liquid hydrogen. We found no evidence to support an earlier claim for exotic baryons of masses 1004 and , and set upper limits on exotic baryon mediated capture of and , respectively. We also obtained bounds on the couplings between exotic baryons and ordinary nucleons. [Copyright &y& Elsevier]

Published
2004
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