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1. First observation and study of the $K^{\pm} \rightarrow \pi^{0} \pi^{0} \mu^{\pm} \nu$ decay

Author

Collaboration, NA48/2, Batley, J. R., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Ceccucci, A., Bocquet, G., Cabibbo, N., Cundy, D., Falaleev, V., Gatignon, L., Fidecaro, M., Gonidec, A., Kubischta, W., Maier, A., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Korotkova, A., Stoynev, S., Zinchenko, A., Kozhuharov, V., Litov, L., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Ramusino, A. Cotta, Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Ruggiero, G., Behler, M., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales, C. Morales, Renk, B., Wache, M., Winhart, A., Wanke, R., Coward, D., Dabrowski, A., Martin, T. Fonseca, Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Cenci, P., Pepe, M., Petrucci, M. C., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., Di Lella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Peyaud, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Lopez, S. Goy, Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Subjects
High Energy Physics - Experiment
Abstract

The NA48/2 experiment at CERN reports the first observation of the $K^{\pm} \rightarrow \pi^{0} \pi^{0} \mu^{\pm} \nu$ decay based on a sample of 2437 candidates with 15% background contamination collected in 2003--2004. The decay branching ratio in the kinematic region of the squared dilepton mass above $0.03$~GeV$^2/c^4$ is measured to be $(0.65 \pm 0.03) \times 10^{-6}$. The extrapolation to the full kinematic space, using a specific model, is found to be $(3.45 \pm 0.16) \times 10^{-6}$, in agreement with chiral perturbation theory predictions., Comment: 16 pages, 9 figures

Published
2023
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2. First observation and study of the K±→ π0π0μ±ν decay

Author

Batley, J. R., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Norton, A., Patel, M., Peters, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Dalpiaz, P., Damiani, C., Fiorini, M., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Baldini, W., Cotta Ramusino, A., Gianoli, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Ruggiero, G., Bizzeti, A., Veltri, M., Behler, M., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M. C., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Collazuol, G., Di Lella, L., Lamanna, G., Mannelli, I., Michetti, A., Cerri, C., Fantechi, R., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Clemencic, M., Goy Lopez, S., Biino, C., Cartiglia, N., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., Balev, S., Frabetti, P. L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Korotkova, A., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., and Zinchenko, A.

Published
2024
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3. ChPT tests at the NA48 and NA62 experiments at CERN

Author

NA48/2, Collaborations, NA62, Ambrosino, F., Antonelli, A., Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, J. R., Behler, M., Bifani, S., Biino, C., Bizzeti, A., Bloch-Devaux, B., Bocquet, G., Bolotov, V., Bucci, F., Cabibbo, N., Calvetti, M., Cartiglia, N., Ceccucci, A., Cenci, P., Cerri, C., Cheshkov, C., Chèze, J. B., Clemencic, M., Collazuol, G., Costantini, F., Ramusino, A. Cotta, Coward, D., Cundy, D., Dabrowski, A., D'Agostini, G., Dalpiaz, P., Damiani, C., Danielsson, H., De Beer, M., Dellacasa, G., Derré, J., Dibon, H., Di Filippo, D., DiLella, L., Doble, N., Duk, V., Engelfried, J., Eppard, K., Falaleev, V., Fantechi, R., Fidecaro, M., Fiorini, L., Fiorini, M., Martin, T. Fonseca, Frabetti, P. L., Fucci, A., Gallorini, S., Gatignon, L., Gersabeck, E., Gianoli, A., Giudici, S., Gonidec, A., Goudzovski, E., Lopez, S. Goy, Gushchin, E., Hallgren, B., Hita-Hochgesand, M., Holder, M., Hristov, P., Iacopini, E., Imbergamo, E., Jeitler, M., Kalmus, G., Kekelidze, V., Kleinknecht, K., Kozhuharov, V., Kubischta, W., Kurshetsov, V., Lamanna, G., Lazzeroni, C., Lenti, M., Leonardi, E., Litov, L., Madigozhin, D., Maier, A., Mannelli, I., Marchetto, F., Marel, G., Markytan, M., Marouelli, P., Martini, M., Masetti, L., Massarotti, P., Mazzucato, E., Michetti, A., Mikulec, I., Misheva, M., Molokanova, N., Monnier, E., Moosbrugger, U., Morales, C. Morales, Moulson, M., Movchan, S., Munday, D. J., Napolitano, M., Nappi, A., Neuhofer, G., Norton, A., Numao, T., Obraztsov, V., Palladino, V., Patel, M., Pepe, M., Peters, A., Petrucci, F., Petrucci, M. C., Peyaud, B., Piandani, R., Piccini, M., Pierazzini, G., Polenkevich, I., Popov, I., Potrebenikov, Yu., Raggi, M., Renk, B., Retière, F., Riedler, P., Romano, A., Rubin, P., Ruggiero, G., Salamon, A., Saracino, G., Savrié, M., Scarpa, M., Semenov, V., Sergi, A., Serra, M., Shieh, M., Shkarovskiy, S., Slater, M. W., Sozzi, M., Spadaro, T., Stoynev, S., Swallow, E., Szleper, M., Valdata-Nappi, M., Valente, P., Vallage, B., Velasco, M., Veltri, M., Venditti, S., Wache, M., Wahl, H., Walker, A., Wanke, R., Widhalm, L., Winhart, A., Winston, R., Wood, M. D., Wotton, S. A., Yushchenko, O., Zinchenko, A., and Ziolkowski, M.

Subjects
High Energy Physics - Experiment
Abstract

The NA48/2 Collaboration at CERN has accumulated unprecedented statistics of rare kaon decays in the Ke4 modes: Ke4(+-) ($K^\pm \to \pi^+ \pi^- e^\pm \nu$) and Ke4(00) ($K^\pm \to \pi^0 \pi^0 e^\pm \nu$) with nearly one percent background contamination. The detailed study of form factors and branching rates, based on these data, has been completed recently. The results brings new inputs to low energy strong interactions description and tests of Chiral Perturbation Theory (ChPT) and lattice QCD calculations. In particular, new data support the ChPT prediction for a cusp in the $\pi^0\pi^0$ invariant mass spectrum at the two charged pions threshold for Ke4(00) decay. New final results from an analysis of about 400 $K^\pm \to \pi^\pm \gamma \gamma$ rare decay candidates collected by the NA48/2 and NA62 experiments at CERN during low intensity runs with minimum bias trigger configurations are presented. The results include a model-independent decay rate measurement and fits to ChPT description., Comment: XIIth International Conference on Heavy Quarks and Leptons 2014, Mainz, Germany

Published
2016

4. Neutron spectroscopy with the Spherical Proportional Counter

Author

Bougamont, E., Dastgheibi, A., Derre, J., Galan, J., Gerbier, G., Giomataris, I., Gros, M., Katsioulas, I., Jourde, D., Magnier, P., Navick, X. F., Papaevangelou, T., Savvidis, I., and Tsiledakis, G.

Subjects
Physics - Instrumentation and Detectors
Abstract

A novel large volume spherical proportional counter, recently developed, is used for neutron measurements. Gas mixtures of $N_{2}$ with $C_{2}H_{6}$ and pure $N_{2}$ are studied for thermal and fast neutron detection, providing a new way for the neutron spectroscopy. The neutrons are detected via the ${}^{14}N(n, p)C^{14}$ and ${}^{14}N(n, \alpha)B^{11}$ reactions. Here we provide studies of the optimum gas mixture, the gas pressure and the most appropriate high voltage supply on the sensor of the detector in order to achieve the maximum amplification and better resolution. The detector is tested for thermal and fast neutrons detection with a ${}^{252}Cf$ and a ${}^{241}Am-{}^{9}Be$ neutron source. The atmospheric neutrons are successfully measured from thermal up to several MeV, well separated from the cosmic ray background. A comparison of the spherical proportional counter with the current available neutron counters is also given., Comment: 7 pages, 10 figures

Published
2015

5. Recent NA48/2 and NA62 results

Author

Ambrosino, F., Antonelli, A., Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, J. R., Behler, M., Bifani, S., Biino, C., Bizzeti, A., Bloch-Devaux, B., Bocquet, G., Bolotov, V., Bucci, F., Cabibbo, N., Calvetti, M., Cartiglia, N., Ceccucci, A., Cenci, P., Cerri, C., Cheshkov, C., Cheze, J. B., Clemencic, M., Collazuol, G., Costantini, F., Ramusino, A. Cotta, Coward, D., Cundy, D., Dabrowski, A., D'Agostini, G., Dalpiaz, P., Damiani, C., Danielsson, H., De Beer, M., Dellacasa, G., Derre, J., Dibon, H., Di Filippo, D., DiLella, L., Doble, N., Duk, V., Engelfried, J., Eppard, K., Falaleev, V., Fantechi, R., Fidecaro, M., Fiorini, L., Fiorini, M., Martin, T. Fonseca, Frabetti, P. L., Fucci, A., Gallorini, S., Gatignon, L., Gersabeck, E., Gianoli, A., Giudici, S., Gonidec, A., Goudzovski, E., Lopez, S. Goy, Gushchin, E., Hallgren, B., Hita-Hochgesand, M., Holder, M., Hristov, P., Iacopini, E., Imbergamo, E., Jeitler, M., Kalmus, G., Kekelidze, V., Kleinknecht, K., Kozhuharov, V., Kubischta, W., Kurshetsov, V., Lamanna, G., Lazzeroni, C., Lenti, M., Leonardi, E., Litov, L., Madigozhin, D., Maier, A., Mannelli, I., Marchetto, F., Marel, G., Markytan, M., Marouelli, P., Martini, M., Masetti, L., Massarotti, P., Mazzucato, E., Michetti, A., Mikulec, I., Misheva, M., Molokanova, N., Monnier, E., Moosbrugger, U., Morales, C. Morales, Moulson, M., Movchan, S., Munday, D. J., Napolitano, M., Nappi, A., Neuhofer, G., Norton, A., Numao, T., Obraztsov, V., Palladino, V., Patel, M., Pepe, M., Peters, A., Petrucci, F., Petrucci, M. C., Peyaud, B., Piandani, R., Piccini, M., Pierazzini, G., Polenkevich, I., Popov, I., Potrebenikov, Yu., Raggi, M., Renk, B., Retiere, F., Riedler, P., Romano, A., Rubin, P., Ruggiero, G., Salamon, A., Saracino, G., Savrie, M., Scarpa, M., Semenov, V., Sergi, A., Serra, M., Shieh, M., Shkarovskiy, S., Slater, M. W., Sozzi, M., Spadaro, T., Stoynev, S., Swallow, E., Szleper, M., Valdata-Nappi, M., Valente, P., Vallage, B., Velasco, M., Veltri, M., Venditti, S., Wache, M., Wahl, H., Walker, A., Wanke, R., Widhalm, L., Winhart, A., Winston, R., Wood, M. D., Wotton, S. A., Yushchenko, O., Zinchenko, A., and Ziolkowski, M.

Subjects
High Energy Physics - Experiment
Abstract

The NA48/2 Collaboration at CERN has accumulated and analysed unprecedented statistics of rare kaon decays in the $K_{e4}$ modes: $K_{e4}(+-)$ ($K^\pm \to \pi^+ \pi^- e^\pm \nu$) and $K_{e4}(00)$ ($K^\pm \to \pi^0 \pi^0 e^\pm \nu$) with nearly one percent background contamination. It leads to the improved measurement of branching fractions and detailed form factor studies. New final results from the analysis of 381 $K^\pm \to \pi^\pm \gamma \gamma$ rare decay candidates collected by the NA48/2 and NA62 experiments at CERN are presented. The results include a decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description., Comment: Prepared for the Proceedings of "Moriond QCD and High Energy Interactions. March 22-29 2014." conference

Published
2014

6. NEWS : a new spherical gas detector for very low mass WIMP detection

Author

Gerbier, G., Giomataris, I., Magnier, P., Dastgheibi, A., Gros, M., Jourde, D., Bougamont, E., Navick, X. F., Papaevangelou, T., Galan, J., Derre, J., Savvidis, I., and Tsiledakis, G.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The main characteristics of a new concept of spherical gaseous detectors, with some details on its operation are first given. The very low energy threshold of such detector has led to investigations of its potential performance for dark matter particle searches, in particular low mass WIMP's : original methods for energy and fiducial volume calibration and background rejection are described and preliminary results obtained with a low radioactivity prototype operated in Laboratoire Souterrain de Modane ("Frejus" lab) are presented. Typical expected sensitivities in cross section for low mass WIMP's are also shown, and other applications briefly discussed., Comment: 6 pages, 8 figures

Published
2014

7. Performances of Anode-resistive Micromegas for HL-LHC

Author

Manjarres, J., Alexopoulos, T., Attie, D., Boyer, M., Derre, J., Fanourakis, G., Ferrer-Ribas, E., Galan, J., Gazis, E., Geralis, T., Giganon, A., Giomataris, I., Herlant, S., Jeanneau, F., Schune, Ph., Titov, M., and Tsipolitis, G.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

Micromegas technology is a promising candidate to replace Atlas forward muon chambers -tracking and trigger- for future HL-LHC upgrade of the experiment. The increase on background and pile-up event probability requires detector performances which are currently under studies in intensive RD activities. We studied performances of four different resistive Micromegas detectors with different read-out strip pitches. These chambers were tested using \sim120 GeV momentum pions, at H6 CERN-SPS beam line in autumn 2010. For a strip pitch 500 micrometers we measure a resolution of \sim90 micrometers and a efficiency of ~98%. The track angle effect on the efficiency was also studied. Our results show that resistive techniques induce no degradation on the efficiency or resolution, with respect to the standard Micromegas. In some configuration the resistive coating is able to reduce the discharge currents at least by a factor of 100.Micromegas technology is a promising candidate to replace Atlas forward muon chambers -tracking and trigger- for future HL-LHC upgrade of the experiment. The increase on background and pile-up event probability requires detector performances which are currently under studies in intensive RD activities. We studied performances of four different resistive Micromegas detectors with different read-out strip pitches. These chambers were tested using \sim120 GeV momentum pions, at H6 CERN-SPS beam line in autumn 2010. For a strip pitch 500 micrometers we measure a resolution of \sim90 micrometers and a efficiency of \sim98%. The track angle effect on the efficiency was also studied. Our results show that resistive techniques induce no degradation on the efficiency or resolution, with respect to the standard Micromegas. In some configuration the resistive coating is able to reduce the discharge currents at least by a factor of 100., Comment: "Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 3 pages, 6 figures. "

Published
2012
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8. Performances and ageing study of resistive-anodes Micromegas detectors for HL-LHC environment

Author

Jeanneau, F., Alexopoulos, T., Attié, D., Boyer, M., Derré, J., Fanourakis, G., Ferrer-Ribas, E., Galán, J., Gazis, E., Geralis, T., Giganon, A., Giomataris, I., Herlant, S., Manjarrés, J., Ntomari, E., Schune, Ph., Titov, M., and Tsipolitis, G.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

With the tenfold luminosity increase envisaged at the HL-LHC, the background (photons, neutrons, ...) and the event pile-up probability are expected to increase in proportion in the different experiments, especially in the forward regions like, for instance, the muons chambers of the ATLAS detector. Detectors based on the Micromegas principle should be good alternatives for the detector upgrade in the HL-LHC framework because of a good spatial (<100 \mum) and time (few ns) resolutions, high-rate capability, radiation hardness, good robustness and the possibility to build large areas. The aim of this study is to demonstrate that it is possible to reduce the discharge probability and protect the electronics by using a resistive anode plane in a high flux hadrons environment. Several prototypes of 10x10 cm2, with different pitches (0.5 to 2 mm) and different resistive layers have been tested at CERN (pi+@SPS). Several tests have been performed with a telescope at different voltages to assess the performances of the detectors in terms of position resolution and efficiency. The spark behaviour in these conditions has also been evaluated. Resistive coating has been shown to be a successful method to reduce the effect of sparks on the efficiency of micromegas. A good spatial resolution (~80 \mum) can be reached with a resistive strip coating detector of 1mm pitch and a high efficiency (> 98%) can be achieved with resistive-anode micromegas detector. An X-rays irradiation has been also performed, showing no ageing effect after more than 21 days exposure and an integrated charge of almost 1C.

Published
2012
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9. Aging studies of Micromegas prototypes for the HL-LHC

Author

Galan, J., Attie, D., Derre, J., Ribas, E. Ferrer, Giganon, A., Giomataris, I., Jeanneau, F., Manjarres, J., de Oliveira, R., Schune, P., Titov, M., and Wotschack, J.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The micromegas technology is a promising candidate to replace the forward muon chambers for the luminosity upgrade of ATLAS. The LHC accelerator luminosity will be five times the nominal one, increasing background and pile-up event probability. This requires detector performances which are currently under study in intensive R&D activities. Aging is one of the key issues for a high-luminosity LHC application. For this reason, we study the properties of resistive micromegas detectors under intense X-ray radiation and under thermal neutrons in different CEA-Saclay facilities. This study is complementary to those already performed using fast neutrons., Comment: Proceedings of the MPGD2011 Conference

Published
2011
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10. Ultra low energy results and their impact to dark matter and low energy neutrino physics

Author

Bougamont, E., Colas, P., Derre, J., Giomataris, I., Gerbier, G., Gros, M., Magnier, P., Navick, X. F., Salin, P., Savvidis, I., Tsiledakis, G., and Vergados, J. D.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

We present ultra low energy results taken with the novel Spherical Proportional Counter. The energy threshold has been pushed down to about 25 eV and single electrons are clearly collected and detected. To reach such performance low energy calibration systems have been successfully developed: - A pulsed UV lamp extracting photoelectrons from the inner surface of the detector - Various radioactive sources allowing low energy peaks through fluorescence processes. The bench mark result is the observation of a well resolved peak at 270 eV due to carbon fluorescence which is unique performance for such large-massive detector. It opens a new window in dark matter and low energy neutrino search and may allow detection of neutrinos from a nuclear reactor or from supernova via neutrino-nucleus elastic scattering, Comment: 14 pages,16 figures

Published
2010

11. Empirical parameterization of the K+- -> pi+- pi0 pi0 decay Dalitz plot

Author

Batley, J. R., Culling, A. J., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Ramusino, A. Cotta, Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Calvetti, M., Iacopini, E., Ruggiero, G., Bizzeti, A., Lenti, M., Veltri, M., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales, C. Morales, Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Martin, T. Fonseca, Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M. C., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Lopez, S. Goy, Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Subjects
High Energy Physics - Experiment
Abstract

As first observed by the NA48/2 experiment at the CERN SPS, the $\p0p0$ invariant mass (M00) distribution from $\kcnn$ decay shows a cusp-like anomaly at M00=2m+, where m+ is the charged pion mass. An analysis to extract the pi pi scattering lengths in the isospin I=0 and I=2 states, a0 and a2, respectively, has been recently reported. In the present work the Dalitz plot of this decay is fitted to a new empirical parameterization suitable for practical purposes, such as Monte Carlo simulations of K+- -> pi+- pi0 pi0 decays., Comment: 9 pages, 3 figures.

Published
2010
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12. A novel large-volume Spherical Detector with Proportional Amplification read-out

Author

Giomataris, I., Irastorza, I., Savvidis, I., Andriamonje, S., Aune, S., Chapelier, M., Charvin, Ph., Colas, P., Derre, J., Ferrer, E., Gros, M., Navick, X. F., Salin, P., and Vergados, J. D.

Subjects
Physics - Instrumentation and Detectors
Abstract

A new type of radiation detector based on a spherical geometry is presented. The detector consists of a large spherical gas volume with a central electrode forming a radial electric field. Charges deposited in the conversion volume drift to the central sensor where they are amplified and collected. We introduce a small spherical sensor located at the center acting as a proportional amplification structure. It allows high gas gains to be reached and operates in a wide range of gas pressures. Signal development and the absolute amplitude of the response are consistent with predictions. Sub-keV energy threshold with good energy resolution is achieved. This new concept has been proven to operate in a simple and robust way and allows reading large volumes with a single read-out channel. The detector performance presently achieved is already close to fulfill the demands of many challenging projects from low energy neutrino physics to dark matter detection with applications in neutron, alpha and gamma spectroscopy., Comment: 13 pages, 13 figures

Published
2008
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14. Precision tests of the Standard Model with Kaon decays at CERN

Author

Ambrosino, F., Antonelli, A., Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, J.R., Behler, M., Bifani, S., Biino, C., Bizzeti, A., Bloch-Devaux, B., Bocquet, G., Bolotov, V., Bucci, F., Cabibbo, N., Calvetti, M., Cartiglia, N., Ceccucci, A., Cenci, P., Cerri, C., Cheshkov, C., Chèze, J.B., Clemencic, M., Collazuol, G., Costantini, F., Cotta Ramusino, A., Coward, D., Cundy, D., Dabrowski, A., D'Agostini, G., Dalpiaz, P., Damiani, C., Danielsson, H., De Beer, M., Dellacasa, G., Derré, J., Dibon, H., Di Filippo, D., DiLella, L., Doble, N., Duk, V., Engelfried, J., Eppard, K., Falaleev, V., Fantechi, R., Fidecaro, M., Fiorini, L., Fiorini, M., Fonseca Martin, T., Frabetti, P.L., Fucci, A., Gallorini, S., Gatignon, L., Gersabeck, E., Gianoli, A., Giudici, S., Gonidec, A., Goudzovski, E., Goy Lopez, S., Gushchin, E., Hallgren, B., Hita-Hochgesand, M., Holder, M., Hristov, P., Iacopini, E., Imbergamo, E., Jeitler, M., Kalmus, G., Kekelidze, V., Kleinknecht, K., Kozhuharov, V., Kubischta, W., Kurshetsov, V., Lamanna, G., Lazzeroni, C., Lenti, M., Leonardi, E., Litov, L., Madigozhin, D., Maier, A., Mannelli, I., Marchetto, F., Marel, G., Markytan, M., Marouelli, P., Martini, M., Masetti, L., Massarotti, P., Mazzucato, E., Michetti, A., Mikulec, I., Misheva, M., Molokanova, N., Monnier, E., Moosbrugger, U., Morales Morales, C., Moulson, M., Movchan, S., Munday, D.J., Napolitano, M., Nappi, A., Neuhofer, G., Norton, A., Numao, T., Obraztsov, V., Palladino, V., Patel, M., Pepe, M., Peters, A., Petrucci, F., Petrucci, M.C., Peyaud, B., Piandani, R., Piccini, M., Pierazzini, G., Polenkevich, I., Popov, I., Potrebenikov, Yu., Raggi, M., Renk, B., Retière, F., Riedler, P., Romano, A., Rubin, P., Ruggiero, G., Salamon, A., Saracino, G., Savrié, M., Scarpa, M., Semenov, V., Sergi, A., Serra, M., Shieh, M., Shkarovskiy, S., Slater, M.W., Sozzi, M., Spadaro, T., Stoynev, S., Swallow, E., Szleper, M., Valdata-Nappi, M., Valente, P., Vallage, B., Velasco, M., Veltri, M., Venditti, S., Wache, M., Wahl, H., Walker, A., Wanke, R., Widhalm, L., Winhart, A., Winston, R., Wood, M.D., Wotton, S.A., Yushchenko, O., Zinchenko, A., and Ziolkowski, M.

Published
2016
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15. Measurement of the form factors of charged kaon semileptonic decays

Author

The NA48/2 collaboration, Batley, J. R., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Dalpiaz, P., Damiani, C., Fiorini, M., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Baldini, W., Cotta Ramusino, A., Gianoli, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Ruggiero, G., Bizzeti, A., Veltri, M., Behler, M., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M. C., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Cerri, C., Fantechi, R., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Clemencic, M., Goy Lopez, S., Biino, C., Cartiglia, N., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Published
2018
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18. Latest results on rare kaon decays from the NA48/2 experiment at CERN

Author

Raggi, M., Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, Behler, M., Bifani, S., Biino, C., Bizzeti, A., Bloch-Devaux, B., Bocquet, G., Cabibbo, N., Calvetti, M., Cartiglia, N., Ceccucci, A., Cenci, P., Cerri, C., Cheshkov, C., Chèze, J. B., Clemencic, M., Collazuol, G., Costantini, F., Ramusino, A. C., Coward, D., Cundy, D., Dabrowski, A., Dalpiaz, P., Damiani, C., Beer, M., Derré, J., Dibon, H., Dilella, L., Doble, N., Eppard, K., Falaleev, V., Fantechi, R., Fidecaro, M., Fiorini, L., Fiorini, M., Martin, T. F., Frabetti, P. L., Gatignon, L., Gersabeck, E., Gianoli, A., Giudici, S., Gonidec, A., Goudzovski, E., Lopez, S. G., Holder, M., Hristov, P., Iacopini, E., Imbergamo, E., Jeitler, M., Kalmus, G., Kekelidze, V., Kleinknecht, K., Kozhuharov, V., Kubischta, W., Lamanna, G., Lazzeroni, C., Lenti, M., Litov, L., Madigozhin, D., Maier, A., Mannelli, I., Marchetto, F., Marel, G., Markytan, M., Marouelli, P., Martini, M., Masetti, L., Mazzucato, E., Michetti, A., Mikulec, I., Misheva, M., Molokanova, N., Monnier, E., Moosbrugger, U., Morales, C. M., Munday, D. J., Nappi, A., Neuhofer, G., Norton, A., Patel, M., Pepe, M., Peters, A., Petrucci, F., Petrucci, M. C., Peyaud, B., Piccini, M., Pierazzini, G., Polenkevich, I., Potrebenikov, Yu, Renk, B., Rubin, P., Ruggiero, G., Savrié, M., Scarpa, M., Shieh, M., Sergey Shkarovskiy, Slater, M. W., Sozzi, M., Stoynev, S., Swallow, E., Szleper, M., Valdata-Nappi, M., Vallage, B., Velasco, M., Veltri, M., Venditti, S., Wache, M., Wahl, H., Walker, A., Wanke, R., Widhalm, L., Winhart, A., Winston, R., Wood, M. D., Wotton, S. A., Zinchenko, A., and Ziolkowski, M.

Subjects
rare kaon decays
Published
2021

19. Precise tests of low energy QCD from $\mbox {$\mathrm {K}_{\mathrm {e}4}$}$ decay properties

Author

Batley, J. R., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Cenci, P., Pepe, M., Petrucci, M. C., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Goy Lopez, S., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., and The NA48/2 Collaboration

Published
2010
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20. Measurement of the direct emission and interference terms and search for CP violation in the decay K ±→π ± π 0 γ

Author

Batley, J. R., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Y., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Cenci, P., Petrucci, M. C., Pepe, M., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Biino, C., Cartiglia, N., Clemencic, M., Goy Lopez, S., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., and The NA48/2 Collaboration

Published
2010
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21. Determination of the S-wave π π scattering lengths from a study of K ±→π ± π 0 π 0 decays

Author

Batley, J. R., Culling, A. J., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Calvetti, M., Iacopini, E., Ruggiero, G., Bizzeti, A., Lenti, M., Veltri, M., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M. C., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Goy Lopez, S., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Published
2009
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22. New high statistics measurement of Ke4 decay form factors and ππ scattering phase shifts

Author

Batley, J.R., Culling, A.J., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Y., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Martelli, F., Ruggiero, G., Veltri, M., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Anzivino, G., Cenci, P., Imbergamo, E., Nappi, A., Pepe, M., Petrucci, M.C., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Collazuol, G., Costantini, F., DiLella, L., Doble, N., Fantechi, R., Fiorini, L., Giudici, S., Lamanna, G., Mannelli, I., Michetti, A., Pierazzini, G., Sozzi, M., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Biino, C., Cartiglia, N., Clemencic, M., Goy Lopez, S., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., and The NA48/2 Collaboration

Published
2008
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23. Search for direct CP violating charge asymmetries in K±→π±π+π- and K±→π±π0π0 decays

Author

Batley, J.R., Culling, A.J., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Y., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Martelli, F., Ruggiero, G., Veltri, M., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Anzivino, G., Cenci, P., Imbergamo, E., Nappi, A., Pepe, M., Petrucci, M.C., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Collazuol, G., Costantini, F., DiLella, L., Doble, N., Fantechi, R., Fiorini, L., Giudici, S., Lamanna, G., Mannelli, I., Michetti, A., Pierazzini, G., Sozzi, M., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Biino, C., Cartiglia, N., Clemencic, M., Goy Lopez, S., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., and The NA48/2 Collaboration

Published
2007
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24. Measurements of charged kaon semileptonic decay branching fractions K±→π0μ±ν and K±→π0e±ν and their ratio

Author

Batley, J.R., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Goudzovski, E., Hristov, P., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Y., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Martelli, F., Ruggiero, G., Veltri, M., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Anzivino, G., Cenci, P., Imbergamo, E., Pepe, M., Petrucci, M.C., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Collazuol, G., Costantini, F., DiLella, L., Doble, N., Fantechi, R., Fiorini, L., Giudici, S., Lamanna, G., Mannelli, I., Michetti, A., Pierazzini, G., Sozzi, M., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Maier, A., Ziolkowski, M., Bifani, S., Biino, C., Cartiglia, N., Clemencic, M., Goy Lopez, S., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., and The NA48/2 Collaboration

Published
2007
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25. First observation and study of the K± → π±π0e+e− decay

Author

Batley, J.R., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Dalpiaz, P., Damiani, C., Fiorini, M., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Baldini, W., Cotta Ramusino, A., Gianoli, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Ruggiero, G., Bizzeti, A., Veltri, M., Behler, M., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M.C., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Cerri, C., Fantechi, R., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Clemencic, M., Goy Lopez, S., Biino, C., Cartiglia, N., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Published
2019
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27. Recent results on Kaon decays from NA48/2

Author

Bizzeti, A., Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, J. R., Behler, M., Bi-Fani, S., Biino, C., Bloch-Devaux, B., Bocquet, G., Cabibbo, N., Calvetti, M., Cartiglia, N., Ceccucci, A., Cenci, P., Cerri, C., Cheshkov, C., Chèze, J. B., Clemencic, M., Collazuol, G., Costantini, F., Cotta Ramusino, A., Coward, D., Cundy, D., Dabrowski, A., Dalpiaz, P., Damiani, C., Beer, M., Derré, J., Dibon, H., Dilella, L., Doble, N., Eppard, K., Falaleev, V., Fantechi, R., Fidecaro, M., Fiorini, L., Fiorini, M., Fonseca Martin, T., Frabetti, P. L., Gatignon, L., Gersabeck, E., Gianoli, A., Giudici, S., Gonidec, A., Goudzovski, E., Goy Lopez, S., Hita-Hochgesand, M., Holder, M., Hristov, P., Iacopini, E., Imbergamo, E., Jeitler, M., Kalmus, G., Kekelidze, V., Kleinknecht, K., Kozhuharov, V., Kubischta, W., Lamanna, G., Lazzeroni, C., Lenti, M., Litov, L., Madigozhin, D., Maier, A., Mannelli, I., Marchetto, F., Marchevski, R., Marel, G., Markytan, M., Marouelli, P., Martini, M., Masetti, L., Mazzucato, E., Michetti, A., Mikulec, I., Misheva, M., Molokanova, N., Monnier, E., Moosbrugger, U., Morales Morales, C., Munday, D. J., Nappi, A., Neuhofer, G., Norton, A., Patel, M., Pepe, M., Peters, A., Petrucci, F., Petrucci, M. C., Peyaud, B., Mauro Piccini, Pierazzini, G., Polenkevich, I., Potrebenikov, Yu, Raggi, M., Renk, B., Rubin, P., Ruggiero, G., Savrié, M., Scarpa, M., Shieh, M., Slater, M. W., Sozzi, M., Stoynev, S., Swallow, E., Szleper, M., Valdata-Nappi, M., Vallage, B., Velasco, M., Veltri, M., Venditti, S., Wache, M., Wahl, H., Walker, A., Wanke, R., Widhalm, L., Winhart, A., Winston, R., Wood, M. D., Wotton, S. A., Zinchenko, A., and Ziolkowski, M.

Subjects
Physics, Particle physics, Chiral perturbation theory, Large Hadron Collider, Branching fraction, media_common.quotation_subject, Form factor (quantum field theory), Space (mathematics), Asymmetry, Particle Physics - Experiment, media_common
Abstract

The first observation of the $K^\pm → π^\pm π^0 e^+ e^-$ rare decay by the NA48/2 experiment at CERN SPS is reported, based on $∼2\times 10^{11} K^\pm$ decays recorded in 2003-2004. From a sample of 4919 candidates with 4.9% background the branching ratio in the full kinematic region is measured to be BR($K^± → π^± π^0 e^+ e^-) = (4.24\pm 0.14)\times 10^-6$.The study of the kinematic space shows evidence for a structure dependent contribution in agreement with predictions based on Chiral Perturbation Theory. The CP-violating asymmetry between $K^\pm → π^+ π^0 e^+ e^-$ and $K^- → π^- π^0 e^+ e^-$ decay rates has been measured, providing an upper limit $|A_{CP}| < 4.82 \times 10^{-2}$ at 90% CL.The NA48/2 combined measurement of the charged kaon semileptonic form factors, based on 4.4 million $K^\pm → π^0 e^± ν_e$ and 2.3 million $K^\pm → π^0 μ^\pm ν_μ$ events collected in 2004, is presented. This result represents the most precise form factor measurement from a combined $K_{l3}^{\pm}$ analysis.

Published
2019

28. First observation and study of the K± → π±π0e+e− decay

Author

Batley, J. R., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Dalpiaz, P., Damiani, C., Fiorini, M., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Baldini, W., Cotta Ramusino, A., Gianoli, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Ruggiero, G., Bizzeti, A., Veltri, M., Behler, M., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M. C., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Cerri, C., Fantechi, R., Bloch-Devaux, B., Cheshkov, C., Chèze, J. B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Clemencic, M., Goy Lopez, S., Biino, C., Cartiglia, N., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Subjects
Nuclear and High Energy Physics
Published
2019

29. Measurement of the n_TOF beam profile with a micromegas detector

Author

Pancin, J., Abbondanno, U., Aerts, G., Alvarez, H., Andriamonje, S., Angelopoulos, A., Assimakopoulos, P., Bacri, C., Badurek, G., Baumann, P., Bečvář, F., Beer, H., Benlliure, J., Berthier, B., Berthoumieux, E., Boffi, S., Borcea, C., Boscolo-Marchi, E., Bustreo, N., Calvino, F., Cano-ott, D., Capote, R., Carlson, P., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Cortina, D., Couture, A., Cox, J., Dababneh, S., Dahlfors, M., David, S., Delbart, A., Derre, J., Dolfini, R., Domingo, C., Duran-Escribano, I., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Lourenco, L., Ferreiramarques, R., Frais-Koelbl, H., Furman, W., Giomataris, Y., Goncalves, I., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Gunsing, F., Haight, R., Heil, M., Herrera-Martinez, A., Ioannides, K., Janeva, N., Jeanneau, F., Jericha, E., Käppeler, F., Kadi, Y., Karamanis, D., Kelic, A., Ketlerov, V., Kitis, G., Koehler, P., Konovalov, V., Kossionides, E., Lacoste, V., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Markov, S., Marrone, S., Martinez-Val, J., Mastinu, P., Mengoni, A., Milazzo, P., Minguez, E., Molina-Coballes, A., Moreau, C., Neves, F., Oberhummer, H., O'brien, S., Papadopoulos, I., Papavengelou, T., Paradela, C., Pavlik, A., Pavlopoulos, P., Perez-Parra, A., Perlado, J., Peskov, V., Perrot, L., Plag, R., Plompen, A., Plukis, A., Poch, A., Policarpo, A., Pretel, C., Quesada, J., Radici, M., Raman, S., Rapp, W., Reifarth, R., Rejmund, F., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Savvidis, E., Stephan, C., Tagliente, G., Tain, J., Tapia, C., Tassan-Got, L., Tavora, L., Terlizzi, R., Terrani, M., Tsangas, N., Vannini, G., Vaz, P., Ventura, A., Villamarin-Fernandez, D., Vincente-Vincente, M., Vlachoudis, V., Vlastou, R., Voss, F., Wendler, H., Wiescher, M., Wisshak, K., and Zanini, L.

Published
2004
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30. Physics at CPLEAR

Author

Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Bee, C.P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C., Ferreira-Marques, R., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandić, I., Manthos, N., Marel, G., Mikuž, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Policarpo, A., Polivka, G., Rickenbach, R., Roberts, B.L., Ruf, T., Sakeliou, L., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Yèche, C., Zavrtanik, D., and Zimmerman, D.

Published
2003
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31. Performances of Anode-resistive Micromegas for HL-LHC

Author

Herlant S., Giomataris I., Giganon A., Geralis T., Gazis E., Galán J., Ferrer-Ribas E., Fanourakis G., Derré J., Boyer M., Attié D., Alexopoulos T., Manjarrés J., Jeanneau F., Schune Ph., Titov M., and Tsipolitis G.

Subjects
Physics, QC1-999
Abstract

Micromegas technology is a promising candidate to replace Atlas forward muon chambers -tracking and trigger- for future HL-LHC upgrade of the experiment. The increase on background and pile-up event probability requires detector performances which are currently under studies in intensive RD activities. We studied performances of four different resistive Micromegas detectors with different read-out strip pitches. These chambers were tested using ~120 GeV momentum pions, at H6 CERN-SPS beam line in autumn 2010. For a strip pitch 500μm we measure a resolution of ~90 μm and a efficiency of ~ 98%. The track angle effect on the efficiency was also studied. Our results show that resistive techniques induce no degradation on the efficiency or resolution, with respect to the standard Micromegas. In some configuration the resistive coating is able to reduce the discharge currents at least by a factor of 100.

Published
2012
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32. First observation and study of the → Decay

Author

Batley, J.R., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Dalpiaz, P., Damiani, C., Fiorini, M., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Baldini, W., Cotta Ramusino, A., Gianoli, A., Calvetti, M., Celeghini, E., Iacopini, E., Lenti, M., Ruggiero, G., Bizzeti, A., Veltri, M., Behler, M., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cenci, P., Pepe, M., Petrucci, M.C., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Cerri, C., Fantechi, R., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Bifani, S., Clemencic, M., Goy Lopez, S., Biino, C., Cartiglia, N., Marchetto, F., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Abstract

The NA48/2 experiment at CERN reports the first observation of the K±→π±π0e+e− decay from an exposure of 1.7×1011 charged kaon decays recorded in 2003–2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kinematic region, BR(K±→π±π0e+e−)=(4.24±0.14)×10−6. The study of the kinematic space shows evidence for a structure dependent contribution in agreement with predictions based on chiral perturbation theory. Several P- and CP-violating asymmetries are also evaluated.

Published
2018

39. Search for the dark photon in π0 decays

Author

Batley, J.R., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Cenci, P., Pepe, M., Petrucci, M.C., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Goy Lopez, S., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Subjects
Nuclear and High Energy Physics
Published
2015
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40. Searches for lepton number violation and resonances in K± → πμμ decays

Author

Batley, J.R., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Massri, K., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Cenci, P., Pepe, M., Petrucci, M.C., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Goy Lopez, S., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Published
2017
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41. Searches for lepton number violation and resonances in $K^{\pm}\to\pi\mu\mu$ decays

Author

Batley, J.R., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Maier, A., Massri, K., Norton, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Cenci, P., Pepe, M., Petrucci, M.C., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., Dilella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., de Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Goy Lopez, S., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Widhalm, L., Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), NA48/2, Centre de Physique des Particules de Marseille ( CPPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Aix Marseille Université ( AMU ), Institut de Recherches sur les lois Fondamentales de l'Univers ( IRFU ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, Institut de Physique Nucléaire de Lyon ( IPNL ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)

Subjects
CERN Lab, S010.46, branching ratio: upper limit, K: secondary beam, S010:Desig=46, resonance: lifetime, High Energy Physics - Experiment, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], K: branching ratio, lepton number: violation, resonance: mass, hep-ex, CERN SPS, +pi-+muon%2B+muon%2B%22">K- --> pi- muon+ muon+, charged particle, inflaton, mass dependence, muon: pair production, intermediate state, K+: semileptonic decay, NA48, +pi%2B+muon-+muon%22">K+ --> pi+ muon- muon, S029AD2, Particle Physics - Experiment, experimental results, K-: semileptonic decay
Abstract

The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003--2004. A new upper limit on the rate of the lepton number violating decay $K^{\pm}\to\pi^{\mp}\mu^{\pm}\mu^{\pm}$ is reported: $\mathcal{B}(K^{\pm}\to\pi^{\mp}\mu^{\pm}\mu^{\pm}), Comment: 15 pages, accepted for publication in Physics Letters B

Published
2017

42. Searches for Lepton Number Violation and Resonances in the K± → πμμ Decays by NA48/2 at CERN

Author

Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, J. R., Behler, M., Bifani, S., Biino, C., Bizzeti, A., Bloch-Devaux, B., Bocquet, G., Cabibbo, N., Calvetti, M., Car- tiglia, N., Ceccucci, A., Cenci, P., Cerri, C., Cheshkov, C., Chèze, J. B., Clemencic, M., Collazuol, G., Costantini, F., Cotta Ramusino, A., Coward, D., Cundy, D., Dabrowski, A., Dalpiaz, P., Damiani, C., De Beer, M., Derré, J., Dibon, H., Dilella, L., Doble, N., Eppard, K., Falaleev, V., Fantechi, R., Fidecaro, M., Fiorini, L., Fiorini, M., Fonseca Martin, T., Frabetti, P. L., Gatignon, L., Gersabeck, E., Gianoli, A., Giudici, S., Gonidec, A., Goud- zovski, E., Goy Lopez, S., Holder, M., Hristov, P., Iacopini, E., Imbergamo, E., Jeitler, M., Kalmus, G., Kekelidze, V., Kleinknecht, K., Kozhuharov, V., Kubischta, W., Lamanna, G., Lazzeroni, C., Lenti, M., Litov, L., Madigozhin, D., Maier, A., Mannelli, I., Marchetto, F., Marel, G., Markytan, M., Marouelli, P., Martini, M., Masetti, L., Mazzu- cato, E., Michetti, A., Mikulec, I., Molokanova, N., Monnier, E., Moosbrugger, U., Morales Morales, C., Munday, D. J., Nappi, A., Neuhofer, G., Norton, A., Patel, M., Pepe, M., Peters, A., Petrucci, F., Petrucci, M. C., Peyaud, B., Pic- cini, M., Pierazzini, G., Polenkevich, I., Potrebenikov, Yu., Raggi, M., Renk, B., Rubin, P., Ruggiero, G., Savrié, M., Scarpa, M., Shieh, M., Slater, M. W., Sozzi, M., Stoynev, S., Swallow, E., Szleper, M., Valdata-Nappi, M., Val- lage, B., Velasco, M., Veltri, M., Venditti, S., Wache, M., Wahl, H., Walker, A., Wanke, R., Widhalm, L., Winhart, A., Winston, R., Wood, M. D., Wotton, S. A., Zinchenko, A., and M. Ziolkowski.

Subjects
Physics, Particle physics, Large Hadron Collider, Ambientale, Lepton number
Published
2017

43. A new measurement of the K±→π±γγ decay at the NA48/2 experiment

Author

Batley, J.R., Kalmus, G., Lazzeroni, C., Munday, D.J., Slater, M.W., Wotton, S.A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P.L., Gersabeck, E., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales Morales, C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Cenci, P., Pepe, M., Petrucci, M.C., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata-Nappi, M., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Bloch-Devaux, B., Cheshkov, C., Chèze, J.B., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Vallage, B., Holder, M., Ziolkowski, M., Biino, C., Cartiglia, N., Marchetto, F., Bifani, S., Clemencic, M., Goy Lopez, S., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., and Widhalm, L.

Subjects
Nuclear and High Energy Physics
Published
2014
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44. Measurement of the energy dependence of the form factor f+ in K 0e3 decay

Author

Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandić, I., Manthos, N., Marel, G., Mikuž, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Polivka, G., Rickenbach, R., Roberts, B.L., Ruf, T., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Zavrtanik, D., and Zimmerman, D.

Published
2000
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45. Recent QCD results from the NA48/2 experiment

Author

Anzivino, Giuseppina, primary, Anzivino, G., additional, Arcidiacono, R., additional, Baldini, W., additional, Balev, S., additional, Batley, J.R., additional, Behler, M., additional, Bifani, S., additional, Biino, C., additional, Bizzeti, A., additional, Bloch-Devaux, B., additional, Bocquet, G., additional, Cabibbo, N., additional, Calvetti, M., additional, Cartiglia, N., additional, Ceccucci, A., additional, Celeghini, E., additional, Cenci, P., additional, Cerri, C., additional, Cheshkov, C., additional, Chèze, J.B., additional, Clemencic, M., additional, Collazuol, G., additional, Costantini, F., additional, Cotta Ramusino, A., additional, Coward, D., additional, Cundy, D., additional, Dabrowski, A., additional, Dalpiaz, P., additional, Damiani, C., additional, De Beer, M., additional, Derré, J., additional, Dibon, H., additional, DiLella, L., additional, Doble, N., additional, Eppard, K., additional, Falaleev, V., additional, Fantechi, R., additional, Fidecaro, M., additional, Fiorini, L., additional, Fiorini, M., additional, Fonseca Martin, T., additional, Frabetti, P.L., additional, Gatignon, L., additional, Gersabeck, E., additional, Gianoli, A., additional, Giudici, S., additional, Gonidec, A., additional, Goudzovski, E., additional, Goy Lopez, S., additional, Hita-Hochgesand, M., additional, Holder, M., additional, Hristov, P., additional, Iacopini, E., additional, Imbergamo, E., additional, Jeitler, M., additional, Kalmus, G., additional, Kekelidze, V., additional, Kleinknecht, K., additional, Kozhuharov, V., additional, Kubischta, W., additional, Lamanna, G., additional, Lazzeroni, C., additional, Lenti, M., additional, Litov, L., additional, Madigozhin, D., additional, Maier, A., additional, Mannelli, I., additional, Marchetto, F., additional, Marchevski, R., additional, Marel, G., additional, Markytan, M., additional, Marouelli, P., additional, Martini, M., additional, Masetti, L., additional, Mazzucato, E., additional, Michetti, A., additional, Mikulec, I., additional, Misheva, M., additional, Molokanova, N., additional, Monnier, E., additional, Moosbrugger, U., additional, Morales Morales, C., additional, Munday, D.J., additional, Nappi, A., additional, Neuhofer, G., additional, Norton, A., additional, Patel, M., additional, Pepe, M., additional, Peters, A., additional, Petrucci, F., additional, Petrucci, M.C., additional, Peyaud, B., additional, Piccini, M., additional, Pierazzini, G., additional, Polenkevich, I., additional, Potrebenikov, Yu., additional, Raggi, M., additional, Renk, B., additional, Rubin, P., additional, Ruggiero, G., additional, Savrié, M., additional, Scarpa, M., additional, Shieh, M., additional, Shkarovskiy, S., additional, Slater, M.W., additional, Sozzi, M., additional, Stoynev, S., additional, Swallow, E., additional, Szleper, M., additional, Valdata-Nappi, M., additional, Vallage, M., additional, Velasco, M., additional, Veltri, M., additional, Venditti, S., additional, Wache, M., additional, Wahl, H., additional, Walker, A., additional, Wanke, R., additional, Widhalm, L., additional, Winhart, A., additional, Winston, R., additional, Wood, M.D., additional, Wotton, S.A., additional, Zinchenko, A., additional, and Ziolkowski, M., additional

Published
2018
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46. Contribution of CPLEAR to the physics of the neutral-kaon system

Author

Weber, Peter, Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C.A., Faravel, L., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandic, I., Manthos, N., Marel, G., Mikuz, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Polivka, G., Rickenbach, R., Roberts, B.L., Ruf, T., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Zavrtanik, D., and Zimmerman, D.

Published
1999
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47. Pion correlations and resonance effects in [formula omitted] annihilation at rest

Author

Weber, Peter, Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C.A., Faravel, L., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandic, I., Manthos, N., Marel, G., Mikuž, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Polivka, G., Rickenbach, R., Roberts, B.L., Ruf, T., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Zavrtanik, D., Zimmerman, D., Locher, M.P., and Markushin, V.E.

Published
1999
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48. K 0– [formula omitted] mass and decay-width differences: CPLEAR evaluation

Author

Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandić, I., Manthos, N., Marel, G., Mikuž, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Polivka, G., Rickenbach, R., Roberts, B.L., Ruf, T., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Zavrtanik, D., and Zimmerman, D.

Published
1999
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49. A determination of the CP violation parameter η+− from the decay of strangeness-tagged neutral kaons

Author

Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandić, I., Manthos, N., Marel, G., Mikuž, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Polivka, G., Rickenbach, R., Roberts, B.L., Ruf, T., Sakeliou, L., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Yeche, C., Zavrtanik, D., and Zimmerman, D.

Published
1999
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50. Determination of the T- and CPT-violation parameters in the neutral-kaon system using the Bell–Steinberger relation and data from CPLEAR

Author

Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., Behnke, O., Benelli, A., Bertin, V., Blanc, F., Bloch, P., Carlson, P., Carroll, M., Cawley, E., Chertok, M.B., Danielsson, M., Dejardin, M., Derre, J., Ealet, A., Eleftheriadis, C., Fetscher, W., Fidecaro, M., Filipčič, A., Francis, D., Fry, J., Gabathuler, E., Gamet, R., Gerber, H.-J., Go, A., Haselden, A., Hayman, P.J., Henry-Couannier, F., Hollander, R.W., Jon-And, K., Kettle, P.-R., Kokkas, P., Kreuger, R., Le Gac, R., Leimgruber, F., Mandić, I., Manthos, N., Marel, G., Mikuž, M., Miller, J., Montanet, F., Muller, A., Nakada, T., Pagels, B., Papadopoulos, I., Pavlopoulos, P., Polivka, G., Rickenbach, R., Roberts, B.L., Sakeliou, L., Ruf, T., Schäfer, M., Schaller, L.A., Schietinger, T., Schopper, A., Tauscher, L., Thibault, C., Touchard, F., Touramanis, C., Van Eijk, C.W.E., Vlachos, S., Weber, P., Wigger, O., Wolter, M., Zavrtanik, D., and Zimmerman, D.

Published
1999
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