219 results on '"Fascianelli"'
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2. Neural representational geometries reflect behavioral differences in monkeys and recurrent neural networks
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Valeria Fascianelli, Aldo Battista, Fabio Stefanini, Satoshi Tsujimoto, Aldo Genovesio, and Stefano Fusi
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Science - Abstract
Abstract Animals likely use a variety of strategies to solve laboratory tasks. Traditionally, combined analysis of behavioral and neural recording data across subjects employing different strategies may obscure important signals and give confusing results. Hence, it is essential to develop techniques that can infer strategy at the single-subject level. We analyzed an experiment in which two male monkeys performed a visually cued rule-based task. The analysis of their performance shows no indication that they used a different strategy. However, when we examined the geometry of stimulus representations in the state space of the neural activities recorded in dorsolateral prefrontal cortex, we found striking differences between the two monkeys. Our purely neural results induced us to reanalyze the behavior. The new analysis showed that the differences in representational geometry are associated with differences in the reaction times, revealing behavioral differences we were unaware of. All these analyses suggest that the monkeys are using different strategies. Finally, using recurrent neural network models trained to perform the same task, we show that these strategies correlate with the amount of training, suggesting a possible explanation for the observed neural and behavioral differences.
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- 2024
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3. NA62 and NA48/2 results on search for Heavy Neutral Leptons
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Lamanna Gianluca, Aliberti R., Ambrosino F., Ammendola R., Angelucci B., Antonelli A., Anzivino G., Arcidiacono R., Barbanera M., Biagioni A., Bician L., Biino C., Bizzeti A., Blazek T., Bloch-Devaux B., Bonaiuto V., Boretto M., Bragadireanu M., Britton D., Brizioli F., Brunetti M.B., Bryman D., Bucci F., Capussela T., Ceccucci A., Cenci P., Cerny V., Cerri C., Checcucci B., Conovaloff A., Cooper P., Cortina Gil E., Corvino M., Costantini F., Cotta Ramusino A., Coward D., D’Agostini G., Dainton J., Dalpiaz P., Danielsson H., De Simone N., Di Filippo D., Di Lella L., Doble N., Dobrich B., Duval F., Duk V., Engelfried J., Enik T., Estrada-Tristan N., Falaleev V., Fantechi R., Fascianelli V., Federici L., Fedotov S., Filippi A., Fiorini M., Fry J., Fu J., Fucci A., Fulton L., Gamberini E., Gatignon L., Georgiev G., Ghinescu S., Gianoli A., Giorgi M., Giudici S., Gonnella F., Goudzovski E., Graham C., Guida R., Gushchin E., Hahn F., Heath H., Husek T., Hutanu O., Hutchcroft D., Iacobuzio L., Iacopini E., Imbergamo E., Jenninger B., Kampf K., Kekelidze V., Kholodenko S., Khoriauli G., Khotyantsev A., Kleimenova A., Korotkova A., Koval M., Kozhuharov V., Kucerova Z., Kudenko Y., Kunze J., Kurochka V., Kurshetsov V., Lanfranchi G., Lamanna G., Latino G., Laycock P., Lazzeroni C., Lenti M., Lehmann Miotto G., Leonardi E., Lichard P., Litov L., Lollini R., Lomidze D., Lonardo A., Lubrano P., Lupi M., Lurkin N., Madigozhin D., Mannelli I., Mannocchi G., Mapelli A., Marchetto F., Marchevski R., Martellotti S., Massarotti P., Massri K., Maurice E., Medvedeva M., Mefodev A., Menichetti E., Migliore E., Minucci E., Mirra M., Misheva M., Molokanova N., Moulson M., Movchan S., Napolitano M., Neri I., Newson F., Norton A., Noy M., Numao T., Obraztsov V., Ostankov A., Padolski S., Page R., Palladino V., Parkinson C., Pedreschi E., Pepe M., Perrin-Terrin M., Peruzzo L., Petrov P., Petrucci F., Piandani R., Piccini M., Pinzino J., Polenkevich I., Pontisso L., Potrebenikov Yu., Protopopescu D., Raggi M., Romano A., Rubin P., Ruggiero G., Ryjov V., Salamon A., Santoni C., Saracino G., Sargeni F., Semenov V., Sergi A., Shaikhiev A., Shkarovskiy S., Soldi D., Sougonyaev V., Sozzi M., Spadaro T., Spinella F., Sturgess A., Swallow J., Trilov S., Valente P., Velghe B., Venditti S., Vicini P., Volpe R., Vormstein M., Wahl H., Wanke R., Wrona B., Yushchenko O., Zamkovsky M., and Zinchenko A.
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Physics ,QC1-999 - Abstract
In this paper we present new results on upper limits for the search of Heavy Neutral Leptons (HNL) with data collected by NA48/2 (2003-2004), NA62-RK (2007) and NA62 (2015) CERN experiments. The data collected with different trigger configuration allow to search for both long and short living heavy neutrinos in the mass range below the kaon mass. In addition the status of the search for K+ → π+vv with the NA62 detector will be briefly presented.
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- 2018
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4. Measurement of the K+ → π+γγ decay
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E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, T. Numao, Y. Petrov, B. Velghe, V.W.S. Wong, D. Bryman, J. Fu, Z. Hives, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, B. De Martino, M. Perrin-Terrin, B. Döbrich, S. Lezki, A.T. Akmete, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, A. Mazzolari, I. Neri, A. Norton, F. Petrucci, M. Soldani, H. Wahl, L. Bandiera, A. Cotta Ramusino, A. Gianoli, M. Romagnoni, A. Sytov, E. Iacopini, G. Latino, M. Lenti, P. Lo Chiatto, I. Panichi, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, S. Martellotti, M. Moulson, T. Spadaro, G. Tinti, F. Ambrosino, T. Capussela, M. Corvino, M. D'Errico, D. Di Filippo, R. Fiorenza, R. Giordano, P. Massarotti, M. Mirra, M. Napolitano, I. Rosa, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D'Agostini, M. Raggi, A. Biagioni, P. Cretaro, O. Frezza, E. Leonardi, A. Lonardo, M. Turisini, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, A. Briano Olvera, J. Engelfried, N. Estrada-Tristan, M.A. Reyes Santos, K.A. Rodriguez Rivera, P. Boboc, A.M. Bragadireanu, S.A. Ghinescu, O.E. Hutanu, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, M. Ceoletta, H. Danielsson, N. De Simone, F. Duval, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E.B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M.B. Brunetti, V. Duk, V. Fascianelli, J.R. Fry, F. Gonnella, E. Goudzovski, J. Henshaw, L. Iacobuzio, C. Kenworthy, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, J. Sanders, A. Sergi, A. Sturgess, J. Swallow, A. Tomczak, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J.B. Dainton, R.W.L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, P. Rubin, A. Baeva, D. Baigarashev, D. Emelyanov, T. Enik, V. Falaleev, S. Fedotov, K. Gorshanov, E. Gushchin, V. Kekelidze, D. Kereibay, S. Kholodenko, A. Khotyantsev, A. Korotkova, Y. Kudenko, V. Kurochka, V. Kurshetsov, L. Litov, D. Madigozhin, M. Medvedeva, A. Mefodev, M. Misheva, N. Molokanova, S. Movchan, V. Obraztsov, A. Okhotnikov, A. Ostankov, I. Polenkevich, Yu. Potrebenikov, A. Sadovskiy, V. Semenov, S. Shkarovskiy, V. Sugonyaev, O. Yushchenko, and A. Zinchenko
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Physics ,QC1-999 - Abstract
A sample of 3984 candidates of the K+→π+γγ decay, with an estimated background of 291±14 events, was collected by the NA62 experiment at CERN during 2017–2018. In order to describe the observed di-photon mass spectrum, the next-to-leading order contribution in chiral perturbation theory was found to be necessary. The decay branching ratio in the full kinematic range is measured to be (9.61±0.17)×10−7. The first search for production and prompt decay of an axion-like particle with gluon coupling in the process K+→π+a, a→γγ is also reported.
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- 2024
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5. Improved calorimetric particle identification in NA62 using machine learning techniques
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The NA62 collaboration, E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, W. Fedorko, T. Numao, Y. Petrov, B. Velghe, V. W. S. Wong, M. Yu, D. Bryman, J. Fu, Z. Hives, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, B. De Martino, M. Perrin-Terrin, A. T. Akmete, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, A. Mazzolari, I. Neri, A. Norton, F. Petrucci, M. Soldani, H. Wahl, L. Bandiera, A. Cotta Ramusino, A. Gianoli, M. Romagnoni, A. Sytov, E. Iacopini, G. Latino, M. Lenti, P. Lo Chiatto, I. Panichi, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, S. Martellotti, M. Moulson, T. Spadaro, G. Tinti, F. Ambrosino, T. Capussela, M. Corvino, M. D’Errico, D. Di Filippo, R. Fiorenza, R. Giordano, P. Massarotti, M. Mirra, M. Napolitano, I. Rosa, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D’Agostini, M. Raggi, A. Biagioni, P. Cretaro, O. Frezza, E. Leonardi, A. Lonardo, M. Turisini, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, A. Briano Olvera, J. Engelfried, N. Estrada-Tristan, M. A. Reyes Santos, P. Boboc, A. M. Bragadireanu, S. A. Ghinescu, O. E. Hutanu, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, M. Ceoletta, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E. B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M. B. Brunetti, V. Duk, V. Fascianelli, J. R. Fry, F. Gonnella, E. Goudzovski, J. Henshaw, L. Iacobuzio, C. Kenworthy, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, J. Sanders, A. Sergi, A. Sturgess, J. Swallow, A. Tomczak, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J. B. Dainton, R. W. L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, P. Rubin, A. Baeva, D. Baigarashev, D. Emelyanov, T. Enik, V. Falaleev, S. Fedotov, K. Gorshanov, E. Gushchin, V. Kekelidze, D. Kereibay, S. Kholodenko, A. Khotyantsev, A. Korotkova, Y. Kudenko, V. Kurochka, V. Kurshetsov, L. Litov, D. Madigozhin, M. Medvedeva, A. Mefodev, M. Misheva, N. Molokanova, S. Movchan, V. Obraztsov, A. Okhotnikov, A. Ostankov, I. Polenkevich, Yu. Potrebenikov, A. Sadovskiy, V. Semenov, S. Shkarovskiy, V. Sugonyaev, O. Yushchenko, and A. Zinchenko
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Fixed Target Experiments ,Branching fraction ,Rare Decay ,Flavour Physics ,Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
Abstract Measurement of the ultra-rare K + → π + ν ν ¯ $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ decay at the NA62 experiment at CERN requires high-performance particle identification to distinguish muons from pions. Calorimetric identification currently in use, based on a boosted decision tree algorithm, achieves a muon misidentification probability of 1.2 × 10 −5 for a pion identification efficiency of 75% in the momentum range of 15–40 GeV/c. In this work, calorimetric identification performance is improved by developing an algorithm based on a convolutional neural network classifier augmented by a filter. Muon misidentification probability is reduced by a factor of six with respect to the current value for a fixed pion-identification efficiency of 75%. Alternatively, pion identification efficiency is improved from 72% to 91% for a fixed muon misidentification probability of 10 −5.
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- 2023
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6. Neurons in the monkey frontopolar cortex encode learning stage and goal during a fast learning task.
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Simon Nougaret, Lorenzo Ferrucci, Francesco Ceccarelli, Stefano Sacchetti, Danilo Benozzo, Valeria Fascianelli, Richard C Saunders, Luc Renaud, and Aldo Genovesio
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Biology (General) ,QH301-705.5 - Abstract
The frontopolar cortex (FPC) is, to date, one of the least understood regions of the prefrontal cortex. The current understanding of its function suggests that it plays a role in the control of exploratory behaviors by coordinating the activities of other prefrontal cortex areas involved in decision-making and exploiting actions based on their outcomes. Based on this hypothesis, FPC would drive fast-learning processes through a valuation of the different alternatives. In our study, we used a modified version of a well-known paradigm, the object-in-place (OIP) task, to test this hypothesis in electrophysiology. This paradigm is designed to maximize learning, enabling monkeys to learn in one trial, which is an ability specifically impaired after a lesion of the FPC. We showed that FPC neurons presented an extremely specific pattern of activity by representing the learning stage, exploration versus exploitation, and the goal of the action. However, our results do not support the hypothesis that neurons in the frontal pole compute an evaluation of different alternatives. Indeed, the position of the chosen target was strongly encoded at its acquisition, but the position of the unchosen target was not. Once learned, this representation was also found at the problem presentation, suggesting a monitoring activity of the synthetic goal preceding its acquisition. Our results highlight important features of FPC neurons in fast-learning processes without confirming their role in the disengagement of cognitive control from the current goals.
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- 2024
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7. Improved calorimetric particle identification in NA62 using machine learning techniques
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Fedorko, W., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Yu, M., Bryman, D., Fu, J., Hives, Z., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., De Martino, B., Perrin-Terrin, M., Akmete, A. T., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Mazzolari, A., Neri, I., Norton, A., Petrucci, F., Soldani, M., Wahl, H., Bandiera, L., Cotta Ramusino, A., Gianoli, A., Romagnoni, M., Sytov, A., Iacopini, E., Latino, G., Lenti, M., Lo Chiatto, P., Panichi, I., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., D’Errico, M., Di Filippo, D., Fiorenza, R., Giordano, R., Massarotti, P., Mirra, M., Napolitano, M., Rosa, I., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Briano Olvera, A., Engelfried, J., Estrada-Tristan, N., Reyes Santos, M. A., Boboc, P., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Ceoletta, M., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Kenworthy, C., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sanders, J., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., Rubin, P., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Fedotov, S., Gorshanov, K., Gushchin, E., Kekelidze, V., Kereibay, D., Kholodenko, S., Khotyantsev, A., Korotkova, A., Kudenko, Y., Kurochka, V., Kurshetsov, V., Litov, L., Madigozhin, D., Medvedeva, M., Mefodev, A., Misheva, M., Molokanova, N., Movchan, S., Obraztsov, V., Okhotnikov, A., Ostankov, A., Polenkevich, I., Potrebenikov, Yu., Sadovskiy, A., Semenov, V., Shkarovskiy, S., Sugonyaev, V., Yushchenko, O., and Zinchenko, A.
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- 2023
- Full Text
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8. A study of the K+→ π0e+νγ decay
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Hives, Z., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., De Martino, B., Perrin-Terrin, M., Akmete, A. T., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Mazzolari, A., Neri, I., Norton, A., Petrucci, F., Soldani, M., Wahl, H., Bandiera, L., Cotta Ramusino, A., Gianoli, A., Romagnoni, M., Sytov, A., Iacopini, E., Latino, G., Lenti, M., Lo Chiatto, P., Panichi, I., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., D’Errico, M., Di Filippo, D., Fiorenza, R., Giordano, R., Massarotti, P., Mirra, M., Napolitano, M., Rosa, I., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Briano Olvera, A., Engelfried, J., Estrada-Tristan, N., Reyes Santos, M. A., Boboc, P., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Ceoletta, M., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Kenworthy, C., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sanders, J., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., Rubin, P., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Fedotov, S., Gorshanov, K., Gushchin, E., Kekelidze, V., Kereibay, D., Kholodenko, S., Khotyantsev, A., Korotkova, A., Kudenko, Y., Kurochka, V., Kurshetsov, V., Litov, L., Madigozhin, D., Medvedeva, M., Mefodev, A., Misheva, M., Molokanova, N., Movchan, S., Obraztsov, V., Okhotnikov, A., Ostankov, A., Polenkevich, I., Potrebenikov, Yu., Sadovskiy, A., Semenov, V., Shkarovskiy, S., Sugonyaev, V., Yushchenko, O., and Zinchenko, A.
- Published
- 2023
- Full Text
- View/download PDF
9. Addendum to: A measurement of the K+→ π+μ+μ− decay
- Author
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Published
- 2023
- Full Text
- View/download PDF
10. Performance of the NA62 trigger system
- Author
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Published
- 2023
- Full Text
- View/download PDF
11. Search for $K^{+}\rightarrow\pi^{+}\nu\overline{\nu}$ at NA62
- Author
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NA62 Collaboration, Rinella, G. Aglieri, Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Azhinenko, I., Balev, S., Barbanera, M., Bendotti, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Blik, A., Bloch-Devaux, B., Bolotov, V., Bonaiuto, V., Boretto, M., Bragadireanu, M., Britton, D., Britvich, G., Brunetti, M. B., Bryman, D., Bucci, F., Butin, F., Calvo, J., Capitolo, E., Capoccia, C., Capussela, T., Cassese, A., Catinaccio, A., Cecchetti, A., Ceccucci, A., Cenci, P., Cerny, V., Cerri, C., Checcucci, B., Chikilev, O., Chiozzi, S., Ciaranfi, R., Collazuol, G., Conovaloff, A., Cooke, P., Cooper, P., Corradi, G., Gil, E. Cortina, Costantini, F., Cotorobai, F., Ramusino, A. Cotta, Coward, D., D'Agostini, G., Dainton, J., Dalpiaz, P., Danielsson, H., Degrange, J., De Simone, N., Di Filippo, D., Di Lella, L., Di Lorenzo, S., Dixon, N., Doble, N., Dobrich, B., Duk, V., Elsha, V., Engelfried, J., Enik, T., Estrada, N., Falaleev, V., Fantechi, R., Fascianelli, V., Federici, L., Fedotov, S., Filippi, A., Fiorini, M., Fry, J., Fu, J., Fucci, A., Fulton, L., Gallorini, S., Galeotti, S., Gamberini, E., Gatignon, L., Georgiev, G., Ghinescu, S., Gianoli, A., Giorgi, M., Giudici, S., Glonti, L., Martins, A. Goncalves, Gonnella, F., Goudzovski, E., Guida, R., Gushchin, E., Hahn, F., Hallgren, B., Heath, H., Herman, F., Husek, T., Hutanu, O., Hutchcroft, D., Iacobuzio, L., Iacopini, E., Imbergamo, E., Jamet, O., Jarron, P., Jones, E., Kampf, T. Jones K., Kaplon, J., Kekelidze, V., Kholodenko, S., Khoriauli, G., Khotyantsev, A., Khudyakov, A., Kiryushin, Yu., Kleimenova, A., Kleinknecht, K., Kluge, A., Koval, M., Kozhuharov, V., Krivda, M., Kucerova, Z., Kudenko, Yu., Kunze, J., Lamanna, G., Latino, G., Lazzeroni, C., Lehmann-Miotto, G., Lenci, R., Lenti, M., Leonardi, E., Lichard, P., Lietava, R., Likhacheva, V., Litov, L., Lollini, R., Lomidze, D., Lonardo, A., Lupi, M., Lurkin, N., McCormick, K., Madigozhin, D., Maire, G., Mandeiro, C., Mannelli, I., Mannocchi, G., Mapelli, A., Marchetto, F., Marchevski, R., Martellotti, S., Massarotti, P., Massri, K., Matak, P., Maurice, E., Medvedeva, M., Mefodev, A., Menichetti, E., Migliore, E., Minucci, E., Mirra, M., Misheva, M., Molokanova, N., Morant, J., Morel, M., Moulson, M., Movchan, S., Munday, D., Napolitano, M., Neri, I., Newson, F., Noël, J., Norton, A., Noy, M., Nuessle, G., Numao, T., Obraztsov, V., Ostankov, A., Padolski, S., Page, R., Palladino, V., Paoluzzi, G., Parkinson, C., Pedreschi, E., Pepe, M., Gomez, F. Perez, Perrin-Terrin, M., Peruzzo, L., Petrov, P., Petrucci, F., Piandani, R., Piccini, M., Pietreanu, D., Pinzino, J., Polenkevich, I., Pontisso, L., Potrebenikov, Yu., Protopopescu, D., Raffaelli, F., Raggi, M., Riedler, P., Romano, A., Rubin, P., Ruggiero, G., Russo, V., Ryjov, V., Salamon, A., Salina, G., Samsonov, V., Santoni, C., Saracino, G., Sargeni, F., Semenov, V., Sergi, A., Serra, M., Shaikhiev, A., Shkarovskiy, S., Skillicorn, I., Soldi, D., Sotnikov, A., Sugonyaev, V., Sozzi, M., Spadaro, T., Spinella, F., Staley, R., Sturgess, A., Sutcliffe, P., Szilasi, N., Tagnani, D., Trilov, S., Valdata-Nappi, M., Valente, P., Vasile, M., Vassilieva, T., Velghe, B., Veltri, M., Venditti, S., Vicini, P., Volpe, R., Vormstein, M., Wahl, H., Wanke, R., Wertelaers, P., Winhart, A., Winston, R., Wrona, B., Yushchenko, O., Zamkovsky, M., and Zinchenko, A.
- Subjects
High Energy Physics - Experiment ,Physics - Instrumentation and Detectors - Abstract
$K^{+}\rightarrow\pi^{+}\nu\overline{\nu}$ is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10\% precision. NA62 took data in pilot runs in 2014 and 2015 reaching the final designed beam intensity. The quality of 2015 data acquired, in view of the final measurement, will be presented., Comment: proceeding of the conference New Trends in High-Energy Physics 2016
- Published
- 2018
12. A measurement of the K+→ π+μ+μ− decay
- Author
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Published
- 2022
- Full Text
- View/download PDF
13. Measurement of the K+ → π+γγ decay
- Author
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Cortina Gil, E., primary, Kleimenova, A., additional, Minucci, E., additional, Padolski, S., additional, Petrov, P., additional, Shaikhiev, A., additional, Volpe, R., additional, Numao, T., additional, Petrov, Y., additional, Velghe, B., additional, Wong, V.W.S., additional, Bryman, D., additional, Fu, J., additional, Hives, Z., additional, Husek, T., additional, Jerhot, J., additional, Kampf, K., additional, Zamkovsky, M., additional, De Martino, B., additional, Perrin-Terrin, M., additional, Döbrich, B., additional, Lezki, S., additional, Akmete, A.T., additional, Aliberti, R., additional, Khoriauli, G., additional, Kunze, J., additional, Lomidze, D., additional, Peruzzo, L., additional, Vormstein, M., additional, Wanke, R., additional, Dalpiaz, P., additional, Fiorini, M., additional, Mazzolari, A., additional, Neri, I., additional, Norton, A., additional, Petrucci, F., additional, Soldani, M., additional, Wahl, H., additional, Bandiera, L., additional, Cotta Ramusino, A., additional, Gianoli, A., additional, Romagnoni, M., additional, Sytov, A., additional, Iacopini, E., additional, Latino, G., additional, Lenti, M., additional, Lo Chiatto, P., additional, Panichi, I., additional, Parenti, A., additional, Bizzeti, A., additional, Bucci, F., additional, Antonelli, A., additional, Georgiev, G., additional, Kozhuharov, V., additional, Lanfranchi, G., additional, Martellotti, S., additional, Moulson, M., additional, Spadaro, T., additional, Tinti, G., additional, Ambrosino, F., additional, Capussela, T., additional, Corvino, M., additional, D'Errico, M., additional, Di Filippo, D., additional, Fiorenza, R., additional, Giordano, R., additional, Massarotti, P., additional, Mirra, M., additional, Napolitano, M., additional, Rosa, I., additional, Saracino, G., additional, Anzivino, G., additional, Brizioli, F., additional, Imbergamo, E., additional, Lollini, R., additional, Piandani, R., additional, Santoni, C., additional, Barbanera, M., additional, Cenci, P., additional, Checcucci, B., additional, Lubrano, P., additional, Lupi, M., additional, Pepe, M., additional, Piccini, M., additional, Costantini, F., additional, Di Lella, L., additional, Doble, N., additional, Giorgi, M., additional, Giudici, S., additional, Lamanna, G., additional, Lari, E., additional, Pedreschi, E., additional, Sozzi, M., additional, Cerri, C., additional, Fantechi, R., additional, Pontisso, L., additional, Spinella, F., additional, Mannelli, I., additional, D'Agostini, G., additional, Raggi, M., additional, Biagioni, A., additional, Cretaro, P., additional, Frezza, O., additional, Leonardi, E., additional, Lonardo, A., additional, Turisini, M., additional, Valente, P., additional, Vicini, P., additional, Ammendola, R., additional, Bonaiuto, V., additional, Fucci, A., additional, Salamon, A., additional, Sargeni, F., additional, Arcidiacono, R., additional, Bloch-Devaux, B., additional, Boretto, M., additional, Menichetti, E., additional, Migliore, E., additional, Soldi, D., additional, Biino, C., additional, Filippi, A., additional, Marchetto, F., additional, Briano Olvera, A., additional, Engelfried, J., additional, Estrada-Tristan, N., additional, Reyes Santos, M.A., additional, Rodriguez Rivera, K.A., additional, Boboc, P., additional, Bragadireanu, A.M., additional, Ghinescu, S.A., additional, Hutanu, O.E., additional, Bician, L., additional, Blazek, T., additional, Cerny, V., additional, Kucerova, Z., additional, Bernhard, J., additional, Ceccucci, A., additional, Ceoletta, M., additional, Danielsson, H., additional, De Simone, N., additional, Duval, F., additional, Federici, L., additional, Gamberini, E., additional, Gatignon, L., additional, Guida, R., additional, Hahn, F., additional, Holzer, E.B., additional, Jenninger, B., additional, Koval, M., additional, Laycock, P., additional, Lehmann Miotto, G., additional, Lichard, P., additional, Mapelli, A., additional, Marchevski, R., additional, Massri, K., additional, Noy, M., additional, Palladino, V., additional, Pinzino, J., additional, Ryjov, V., additional, Schuchmann, S., additional, Venditti, S., additional, Bache, T., additional, Brunetti, M.B., additional, Duk, V., additional, Fascianelli, V., additional, Fry, J.R., additional, Gonnella, F., additional, Goudzovski, E., additional, Henshaw, J., additional, Iacobuzio, L., additional, Kenworthy, C., additional, Lazzeroni, C., additional, Lurkin, N., additional, Newson, F., additional, Parkinson, C., additional, Romano, A., additional, Sanders, J., additional, Sergi, A., additional, Sturgess, A., additional, Swallow, J., additional, Tomczak, A., additional, Heath, H., additional, Page, R., additional, Trilov, S., additional, Angelucci, B., additional, Britton, D., additional, Graham, C., additional, Protopopescu, D., additional, Carmignani, J., additional, Dainton, J.B., additional, Jones, R.W.L., additional, Ruggiero, G., additional, Fulton, L., additional, Hutchcroft, D., additional, Maurice, E., additional, Wrona, B., additional, Conovaloff, A., additional, Cooper, P., additional, Coward, D., additional, Rubin, P., additional, Baeva, A., additional, Baigarashev, D., additional, Emelyanov, D., additional, Enik, T., additional, Falaleev, V., additional, Fedotov, S., additional, Gorshanov, K., additional, Gushchin, E., additional, Kekelidze, V., additional, Kereibay, D., additional, Kholodenko, S., additional, Khotyantsev, A., additional, Korotkova, A., additional, Kudenko, Y., additional, Kurochka, V., additional, Kurshetsov, V., additional, Litov, L., additional, Madigozhin, D., additional, Medvedeva, M., additional, Mefodev, A., additional, Misheva, M., additional, Molokanova, N., additional, Movchan, S., additional, Obraztsov, V., additional, Okhotnikov, A., additional, Ostankov, A., additional, Polenkevich, I., additional, Potrebenikov, Yu., additional, Sadovskiy, A., additional, Semenov, V., additional, Shkarovskiy, S., additional, Sugonyaev, V., additional, Yushchenko, O., additional, and Zinchenko, A., additional
- Published
- 2024
- Full Text
- View/download PDF
14. Intrinsic timescales across the basal ganglia
- Author
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Simon Nougaret, Valeria Fascianelli, Sabrina Ravel, and Aldo Genovesio
- Subjects
Medicine ,Science - Abstract
Abstract Recent studies have shown that temporal stability of the neuronal activity over time can be estimated by the structure of the spike-count autocorrelation of neuronal populations. This estimation, called the intrinsic timescale, has been computed for several cortical areas and can be used to propose a cortical hierarchy reflecting a scale of temporal receptive windows between areas. In this study, we performed an autocorrelation analysis on neuronal populations of three basal ganglia (BG) nuclei, including the striatum and the subthalamic nucleus (STN), the input structures of the BG, and the external globus pallidus (GPe). The analysis was performed during the baseline period of a motivational visuomotor task in which monkeys had to apply different amounts of force to receive different amounts of reward. We found that the striatum and the STN have longer intrinsic timescales than the GPe. Moreover, our results allow for the placement of these subcortical structures within the already-defined scale of cortical temporal receptive windows. Estimates of intrinsic timescales are important in adding further constraints in the development of computational models of the complex dynamics among these nuclei and throughout cortico-BG-thalamo-cortical loops.
- Published
- 2021
- Full Text
- View/download PDF
15. Searches for lepton number violating K+ → π−(π0)e+e+ decays
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E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, T. Numao, Y. Petrov, B. Velghe, V.W.S. Wong, D. Bryman, J. Fu, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, S. Martellotti, M. Moulson, T. Spadaro, G. Tinti, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, R. Fiorenza, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D'Agostini, M. Raggi, A. Biagioni, P. Cretaro, O. Frezza, E. Leonardi, A. Lonardo, M. Turisini, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A.M. Bragadireanu, S.A. Ghinescu, O.E. Hutanu, A. Baeva, D. Baigarashev, D. Emelyanov, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, L. Litov, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E.B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M.B. Brunetti, V. Duk, V. Fascianelli, J.R. Fry, F. Gonnella, E. Goudzovski, J. Henshaw, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, A. Tomczak, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J.B. Dainton, R.W.L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, and P. Rubin
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Physics ,QC1-999 - Abstract
Searches for lepton number violating K+→π−e+e+ and K+→π−π0e+e+ decays have been performed using the complete dataset collected by the NA62 experiment at CERN in 2016–2018. Upper limits of 5.3×10−11 and 8.5×10−10 are obtained on the decay branching fractions at 90% confidence level. The former result improves by a factor of four over the previous best limit, while the latter result represents the first limit on the K+→π−π0e+e+ decay rate.
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- 2022
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16. Neurons in the monkey frontopolar cortex encode learning stage and goal during a fast learning task
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Nougaret, Simon, primary, Ferrucci, Lorenzo, additional, Ceccarelli, Francesco, additional, Sacchetti, Stefano, additional, Benozzo, Danilo, additional, Fascianelli, Valeria, additional, Saunders, Richard C., additional, Renaud, Luc, additional, and Genovesio, Aldo, additional
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- 2024
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17. An investigation of the very rare K + → π + ν ν ¯ $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ decay
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The NA62 collaboration, E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, T. Numao, B. Velghe, D. Bryman, J. Fu, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, R. Marchevski, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, S. Martellotti, M. Moulson, T. Spadaro, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D’Agostini, M. Raggi, A. Biagioni, E. Leonardi, A. Lonardo, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A. M. Bragadireanu, S. A. Ghinescu, O. E. Hutanu, A. Baeva, D. Baigarashev, D. Emelyanov, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, L. Litov, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E. B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M. B. Brunetti, V. Duk, V. Fascianelli, J. R. Fry, F. Gonnella, E. Goudzovski, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J. B. Dainton, R. W. L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, and P. Rubin
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Fixed target experiments ,Flavor physics ,Flavour Changing Neutral Currents ,Rare decay ,Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
Abstract The NA62 experiment reports an investigation of the K + → π + ν ν ¯ $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ mode from a sample of K + decays collected in 2017 at the CERN SPS. The experiment has achieved a single event sensitivity of (0.389 ± 0.024) × 10 −10, corresponding to 2.2 events assuming the Standard Model branching ratio of (8.4 ± 1.0) × 10 −11. Two signal candidates are observed with an expected background of 1.5 events. Combined with the result of a similar analysis conducted by NA62 on a smaller data set recorded in 2016, the collaboration now reports an upper limit of 1.78 × 10 −10 for the K + → π + ν ν ¯ $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ branching ratio at 90% CL. This, together with the corresponding 68% CL measurement of ( 0.48 − 0.48 + 0.72 $$ {0.48}_{-0.48}^{+0.72} $$ ) × 10 −10, are currently the most precise results worldwide, and are able to constrain some New Physics models that predict large enhancements still allowed by previous measurements.
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- 2020
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18. Intrinsic timescales across the basal ganglia
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Nougaret, Simon, Fascianelli, Valeria, Ravel, Sabrina, and Genovesio, Aldo
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- 2021
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19. Neural Intrinsic Timescales in the Macaque Dorsal Premotor Cortex Predict the Strength of Spatial Response Coding
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Cirillo, Rossella, Fascianelli, Valeria, Ferrucci, Lorenzo, and Genovesio, Aldo
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- 2018
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20. Search for K+ decays into the π+e+e−e+e− final state
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Cortina Gil, E., primary, Kleimenova, A., additional, Minucci, E., additional, Padolski, S., additional, Petrov, P., additional, Shaikhiev, A., additional, Volpe, R., additional, Numao, T., additional, Petrov, Y., additional, Velghe, B., additional, Wong, V.W.S., additional, Bryman, D., additional, Fu, J., additional, Hives, Z., additional, Husek, T., additional, Jerhot, J., additional, Kampf, K., additional, Zamkovsky, M., additional, De Martino, B., additional, Perrin-Terrin, M., additional, Akmete, A.T., additional, Aliberti, R., additional, Khoriauli, G., additional, Kunze, J., additional, Lomidze, D., additional, Peruzzo, L., additional, Vormstein, M., additional, Wanke, R., additional, Dalpiaz, P., additional, Fiorini, M., additional, Mazzolari, A., additional, Neri, I., additional, Norton, A., additional, Petrucci, F., additional, Soldani, M., additional, Wahl, H., additional, Bandiera, L., additional, Cotta Ramusino, A., additional, Gianoli, A., additional, Romagnoni, M., additional, Sytov, A., additional, Iacopini, E., additional, Latino, G., additional, Lenti, M., additional, Lo Chiatto, P., additional, Panichi, I., additional, Parenti, A., additional, Bizzeti, A., additional, Bucci, F., additional, Antonelli, A., additional, Georgiev, G., additional, Kozhuharov, V., additional, Lanfranchi, G., additional, Martellotti, S., additional, Moulson, M., additional, Spadaro, T., additional, Tinti, G., additional, Ambrosino, F., additional, Capussela, T., additional, Corvino, M., additional, D'Errico, M., additional, Di Filippo, D., additional, Fiorenza, R., additional, Giordano, R., additional, Massarotti, P., additional, Mirra, M., additional, Napolitano, M., additional, Rosa, I., additional, Saracino, G., additional, Anzivino, G., additional, Brizioli, F., additional, Imbergamo, E., additional, Lollini, R., additional, Piandani, R., additional, Santoni, C., additional, Barbanera, M., additional, Cenci, P., additional, Checcucci, B., additional, Lubrano, P., additional, Lupi, M., additional, Pepe, M., additional, Piccini, M., additional, Costantini, F., additional, Di Lella, L., additional, Doble, N., additional, Giorgi, M., additional, Giudici, S., additional, Lamanna, G., additional, Lari, E., additional, Pedreschi, E., additional, Sozzi, M., additional, Cerri, C., additional, Fantechi, R., additional, Pontisso, L., additional, Spinella, F., additional, Mannelli, I., additional, D'Agostini, G., additional, Raggi, M., additional, Biagioni, A., additional, Cretaro, P., additional, Frezza, O., additional, Leonardi, E., additional, Lonardo, A., additional, Turisini, M., additional, Valente, P., additional, Vicini, P., additional, Ammendola, R., additional, Bonaiuto, V., additional, Fucci, A., additional, Salamon, A., additional, Sargeni, F., additional, Arcidiacono, R., additional, Bloch-Devaux, B., additional, Boretto, M., additional, Menichetti, E., additional, Migliore, E., additional, Soldi, D., additional, Biino, C., additional, Filippi, A., additional, Marchetto, F., additional, Briano Olvera, A., additional, Engelfried, J., additional, Estrada-Tristan, N., additional, Reyes Santos, M.A., additional, Boboc, P., additional, Bragadireanu, A.M., additional, Ghinescu, S.A., additional, Hutanu, O.E., additional, Bician, L., additional, Blazek, T., additional, Cerny, V., additional, Kucerova, Z., additional, Bernhard, J., additional, Ceccucci, A., additional, Ceoletta, M., additional, Danielsson, H., additional, De Simone, N., additional, Duval, F., additional, Döbrich, B., additional, Federici, L., additional, Gamberini, E., additional, Gatignon, L., additional, Guida, R., additional, Hahn, F., additional, Holzer, E.B., additional, Jenninger, B., additional, Koval, M., additional, Laycock, P., additional, Lehmann Miotto, G., additional, Lichard, P., additional, Mapelli, A., additional, Marchevski, R., additional, Massri, K., additional, Noy, M., additional, Palladino, V., additional, Pinzino, J., additional, Ryjov, V., additional, Schuchmann, S., additional, Venditti, S., additional, Bache, T., additional, Brunetti, M.B., additional, Duk, V., additional, Fascianelli, V., additional, Fry, J.R., additional, Gonnella, F., additional, Goudzovski, E., additional, Henshaw, J., additional, Iacobuzio, L., additional, Kenworthy, C., additional, Lazzeroni, C., additional, Lurkin, N., additional, Newson, F., additional, Parkinson, C., additional, Romano, A., additional, Sanders, J., additional, Sergi, A., additional, Sturgess, A., additional, Swallow, J., additional, Tomczak, A., additional, Heath, H., additional, Page, R., additional, Trilov, S., additional, Angelucci, B., additional, Britton, D., additional, Graham, C., additional, Protopopescu, D., additional, Carmignani, J., additional, Dainton, J.B., additional, Jones, R.W.L., additional, Ruggiero, G., additional, Fulton, L., additional, Hutchcroft, D., additional, Maurice, E., additional, Wrona, B., additional, Conovaloff, A., additional, Cooper, P., additional, Coward, D., additional, Rubin, P., additional, Baeva, A., additional, Baigarashev, D., additional, Emelyanov, D., additional, Enik, T., additional, Falaleev, V., additional, Fedotov, S., additional, Gorshanov, K., additional, Gushchin, E., additional, Kekelidze, V., additional, Kereibay, D., additional, Kholodenko, S., additional, Khotyantsev, A., additional, Korotkova, A., additional, Kudenko, Y., additional, Kurochka, V., additional, Kurshetsov, V., additional, Litov, L., additional, Madigozhin, D., additional, Medvedeva, M., additional, Mefodev, A., additional, Misheva, M., additional, Molokanova, N., additional, Movchan, S., additional, Obraztsov, V., additional, Okhotnikov, A., additional, Ostankov, A., additional, Polenkevich, I., additional, Potrebenikov, Yu., additional, Sadovskiy, A., additional, Semenov, V., additional, Shkarovskiy, S., additional, Sugonyaev, V., additional, Yushchenko, O., additional, and Zinchenko, A., additional
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- 2023
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21. Search for production of an invisible dark photon in π 0 decays
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The NA62 collaboration, E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, G. Georgiev, V. Kozhuharov, L. Litov, T. Numao, Y. Petrov, B. Velghe, D. Bryman, J. Fu, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Lanfranchi, G. Mannocchi, S. Martellotti, M. Moulson, T. Spadaro, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D’Agostini, M. Raggi, A. Biagioni, E. Leonardi, A. Lonardo, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A. M. Bragadireanu, S. A. Ghinescu, O. E. Hutanu, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E. B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M. B. Brunetti, V. Duk, V. Fascianelli, J. R. Fry, F. Gonnella, E. Goudzovski, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J. B. Dainton, R. W. L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, and P. Rubin
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Beyond Standard Model ,Exotics ,Fixed target experiments ,Rare decay ,Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
Abstract The results of a search for π 0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π 0 mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c 2. The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay π 0 → γ ν ν ¯ $$ {\pi}^0\to \gamma \nu \overline{\nu} $$ , improving the current limit by more than three orders of magnitude.
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- 2019
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22. First search for K+→π+νν¯ using the decay-in-flight technique
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E. Cortina Gil, E. Minucci, S. Padolski, P. Petrov, B. Velghe, G. Georgiev, V. Kozhuharov, L. Litov, T. Numao, D. Bryman, J. Fu, T. Husek, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, R. Marchevski, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, E. Gamberini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Bizzeti, F. Bucci, R. Volpe, A. Antonelli, G. Lamanna, G. Lanfranchi, G. Mannocchi, S. Martellotti, M. Moulson, M. Raggi, T. Spadaro, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, V. Duk, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, R. Piandani, J. Pinzino, L. Pontisso, F. Spinella, I. Mannelli, G. D'Agostini, A. Biagioni, E. Leonardi, A. Lonardo, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, L. Federici, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A.M. Bragadireanu, S.A. Ghinescu, O.E. Hutanu, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, A. Kleimenova, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, A. Shaikhiev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, M. Koval, Z. Kucerova, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Gatignon, R. Guida, F. Hahn, B. Jenninger, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, V. Ryjov, S. Venditti, M.B. Brunetti, V. Fascianelli, F. Gonnella, E. Goudzovski, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J.B. Dainton, J.R. Fry, L. Fulton, D. Hutchcroft, E. Maurice, G. Ruggiero, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, and P. Rubin
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Physics ,QC1-999 - Abstract
The NA62 experiment at the CERN SPS reports the first search for K+→π+νν¯ using the decay-in-flight technique, based on a sample of 1.21×1011 K+ decays collected in 2016. The single event sensitivity is 3.15×10−10, corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10−10 on the K+→π+νν¯ branching ratio at 95% CL.
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- 2019
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23. Neural Intrinsic Timescales in the Macaque Dorsal Premotor Cortex Predict the Strength of Spatial Response Coding
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Rossella Cirillo, Valeria Fascianelli, Lorenzo Ferrucci, and Aldo Genovesio
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Science - Abstract
Summary: Our brain continuously receives information over multiple timescales that are differently processed across areas. In this study, we investigated the intrinsic timescale of neurons in the dorsal premotor cortex (PMd) of two rhesus macaques while performing a non-match-to-goal task. The task rule was to reject the previously chosen target and select the alternative one. We defined the intrinsic timescale as the decay constant of the autocorrelation structure computed during a baseline period of the task. We found that neurons with longer intrinsic timescale tended to maintain a stronger spatial response coding during a delay period. This result suggests that longer intrinsic timescales predict the functional role of PMd neurons in a cognitive task. Our estimate of the intrinsic timescale integrates an existing hierarchical model (Murray et al., 2014), by assigning to PMd a lower position than prefrontal cortex in the hierarchical ordering of the brain areas based on neurons' timescales. : Cognitive Neuroscience; Neuroscience Subject Areas: Cognitive Neuroscience, Neuroscience
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- 2018
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24. Search for heavy neutral lepton production in K+ decays to positrons
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E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, T. Numao, Y. Petrov, B. Velghe, D. Bryman, J. Fu, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, S. Martellotti, M. Moulson, T. Spadaro, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D'Agostini, M. Raggi, A. Biagioni, E. Leonardi, A. Lonardo, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A.M. Bragadireanu, S.A. Ghinescu, O.E. Hutanu, A. Baeva, D. Baigarashev, D. Emelyanov, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, L. Litov, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E.B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M.B. Brunetti, V. Duk, V. Fascianelli, J.R. Fry, F. Gonnella, E. Goudzovski, J. Henshaw, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J.B. Dainton, R.W.L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, and P. Rubin
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Physics ,QC1-999 - Abstract
A search for heavy neutral lepton (N) production in K+→e+N decays using the data sample collected by the NA62 experiment at CERN in 2017–2018 is reported. Upper limits of the extended neutrino mixing matrix element |Ue4|2 are established at the level of 10−9 over most of the accessible heavy neutral lepton mass range 144–462 MeV/c2, with the assumption that the lifetime exceeds 50 ns. These limits improve significantly upon those of previous production and decay searches. The |Ue4|2 range favoured by Big Bang Nucleosynthesis is excluded up to a mass of about 340 MeV/c2.
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- 2020
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25. Search for $K^+$ decays into the $\pi^+e^+e^-e^+e^-$ final state
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Cortina Gil, Eduardo, Minucci, Elisa, Padolski, Sergey, Petrov, Plamen, Velghe, Bob, Bryman, Douglas, Fu, Ji, Numao, Toshio, Petrov, Yevgeniy, Wong, Vincent Wai Sum, Husek, Tomas, Kampf, Karol, Zamkovsky, Michal, Jerhot, Jan, Aliberti, Riccardo, Khoriauli, Gia, Kunze, Jonas, Lomidze, David, Marchevski, Radoslav, Peruzzo, Letizia, Vormstein, Mario, Wanke, Rainer, Cotta Ramusino, Angelo, Dalpiaz, Pietro, Fiorini, Massimiliano, Gamberini, Enrico, Gianoli, Alberto, Neri, Ilaria, Norton, Alan, Petrucci, Ferruccio, Wahl, Heinrich, Bizzeti, Andrea, Bucci, Francesca, Iacopini, Enrico, Latino, Giuseppe, Lenti, Massimo, Parenti, Andrea, Volpe, Roberta, Antonelli, Antonella, Gonnella, Francesco, Lamanna, Gianluca, Lanfranchi, Gaia, Tinti, Gemma, Martellotti, Silvia, Moulson, Matthew, Kozhuharov, Venelin, Litov, Leandar, Georgiev, Georgi, Raggi, Mauro, Spadaro, Tommaso, Ambrosino, Fabio, Fiorenza, Renato, Capussela, Tiziana, Corvino, Michele, Di Filippo, Domenico, Massarotti, Paolo, Mirra, Marco, Napolitano, Marco, Saracino, Giulio, Anzivino, Giuseppina, Imbergamo, Ermanno, Lollini, Riccardo, Santoni, Cristiano, Brizioli, Francesco, Barbanera, Mattia, Cenci, Patrizia, Checcucci, Bruno, Duk, Viacheslav, Lupi, Matteo, Pepe, Monica, Piccini, Mauro, Lubrano, Pasquale, Costantini, Flavio, Doble, Niels, Giorgi, Marcello, Giudici, Sergio, Lari, Enrico, Pinzino, Jacopo, Pontisso, Luca, Sozzi, Marco, Di Lella, Luigi, Mannelli, Italo, Cerri, Claudio, Fantechi, Riccardo, Pedreschi, Elena, Piandani, Roberto, Spinella, Franco, Biagioni, Andrea, d'Agostini, Giulio, Leonardi, Emanuele, Lonardo, Alessandro, Valente, Paolo, Vicini, Piero, Cretaro, Paolo, Turisini, Matteo, Frezza, Ottorino, Ammendola, Roberto, Bonaiuto, Vincenzo, de Simone, Nicola, Federici, Luca, Fucci, Adolfo, Salamon, Andrea, Sargeni, Fausto, Arcidiacono, Roberta, Biino, Cristina, Bloch-Devaux, Brigitte, Boretto, Marco, Filippi, Alessandra, Iacobuzio, Lorenza, Marchetto, Flavio, Menichetti, Ezio, Migliore, Ernesto, Soldi, Dario, Engelfried, Jürgen, Estrada-Tristan, Nora, Bragadireanu, Alexandru Mario, Ghinescu, Stefan Alexandru, Hutanu, Ovidiu Emanuel, Enik, Temur, Falaleev, Valeri, Kekelidze, Vladimir, Korotkova, Anna, Madigozhin, Dmitry, Misheva, Milena, Molokanova, Natalia, Movchan, Sergei, Polenkevich, Irina, Potrebenikov, Yuri, Shkarovskiy, Sergey, Zinchenko, Andrey, Baeva, Aigul, Baigarashev, Dosbol, Emelyanov, Dmitry, Fedotov, Sergei, Khotyantsev, Alexey, Gushchin, Evgeny, Kleimenova, Alina, Kudenko, Yury, Kurochka, Viktoriia, Medvedeva, Mariia, Mefodev, Aleksandr, Shaikhiev, Artur, Kholodenko, Sergey, Kurshetsov, Viktor, Obraztsov, Vladimir, Ostankov, Aleksandr, Semenov, Vitali, Sugonyaev, Valentin, Yushchenko, Oleg, Bician, Lubos, Blazek, Tomas, Cerny, Vladimir, Koval, Michal, Kucerova, Zuzana, Ceccucci, Augusto, Bernhard, Johannes, Danielsson, Hans, Döbrich, Babette, Duval, Francois, Gatignon, Lau, Guida, Roberto, Hahn, Ferdinand, Holzer, Eva Barbara, Jenninger, Berthold, Laycock, Paul, Lehmann Miotto, Giovanna, Lichard, Peter, Mapelli, Alessandro, Noy, Matthew, Palladino, Vito, Perrin-Terrin, Mathieu, Ruggiero, Giuseppe, Ryjov, Vladimir, Schuchmann, Simone, Venditti, Stefano, Brunetti, Maria Brigida, Bache, Thomas, Goudzovski, Evgueni, Henshaw, Jack, Tomczak, Adam, Lazzeroni, Cristina, Fascianelli, Valeria, Lurkin, Nicolas, Newson, Francis, Parkinson, Christopher, Romano, Angela, Sergi, Antonino, Sturgess, Andrew, Swallow, Joel, Heath, Helen, Page, Ryan, Trilov, Stoyan, Angelucci, Bruno, Britton, David, Protopopescu, Dan, Graham, Connor, Jones, Roger William Lewis, Dainton, John Bourke, Fry, John Richard, Fulton, Liam, Hutchcroft, David, Carmignani, Joseph, Massri, Karim, Maurice, Emilie, Wrona, Bozydar, Conovaloff, Adam, Cooper, Peter, Coward, David, Rubin, Philip David, Hives, Zdenko, Akmete, Atakan Tugberk, Soldani, Mattia, Bandiera, Laura, Mazzolari, Andrea, Romagnoni, Marco, Sytov, Alexei, Panichi, Ilaria, Lo Chiatto, Prisco, d'Errico, Mariaelena, Giordano, Raffaele, Briano Olvera, Alejandro, Reyes Santos, Marco Antonio, Boboc, Petre, Kereibay, Dias, Gorshanov, Konstantin, Okhotnikov, Artem, Sadovskiy, Alexander, Sanders, Jack, Kenworthy, Chandler, de Martino, Bianca, Rosa, Ilaria, Ceoletta, Marco, 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), and NA62
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pair production ,CERN Lab ,quantum chromodynamics, axion ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,anomaly ,mediation ,branching ratio ,hidden sector ,NA62 ,Particle Physics - Experiment ,High Energy Physics - Experiment - Abstract
The first search for ultra-rare $K^+$ decays into the $\pi^+e^+e^-e^+e^-$ final state is reported, using a dataset collected by the NA62 experiment at CERN in 2017-2018. An upper limit of $1.4\times 10^{-8}$ at 90% CL is obtained for the branching ratio of the $K^+\to\pi^+e^+e^-e^+e^-$ decay, predicted in the Standard Model to be $(7.2\pm0.7)\times 10^{-11}$. Upper limits at 90% CL are obtained at the level of $10^{-9}$ for the branching ratios of two prompt decay chains involving pair-production of hidden-sector mediators: $K^+\to\pi^+aa$, $a\to e^+e^-$ and $K^+\to\pi^+S$, $S\to A^\prime A^\prime$, $A^\prime\to e^+e^-$. The QCD axion is excluded as a possible explanation of the "17 MeV anomaly"., Comment: Version to be submitted to Physics Letters B
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- 2023
26. A search for the K+ → μ−νe+e+ decay
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Cortina Gil, E., primary, Kleimenova, A., additional, Minucci, E., additional, Padolski, S., additional, Petrov, P., additional, Shaikhiev, A., additional, Volpe, R., additional, Numao, T., additional, Petrov, Y., additional, Velghe, B., additional, Wong, V.W.S., additional, Bryman, D., additional, Fu, J., additional, Husek, T., additional, Jerhot, J., additional, Kampf, K., additional, Zamkovsky, M., additional, Aliberti, R., additional, Khoriauli, G., additional, Kunze, J., additional, Lomidze, D., additional, Peruzzo, L., additional, Vormstein, M., additional, Wanke, R., additional, Dalpiaz, P., additional, Fiorini, M., additional, Neri, I., additional, Norton, A., additional, Petrucci, F., additional, Wahl, H., additional, Cotta Ramusino, A., additional, Gianoli, A., additional, Iacopini, E., additional, Latino, G., additional, Lenti, M., additional, Parenti, A., additional, Bizzeti, A., additional, Bucci, F., additional, Antonelli, A., additional, Georgiev, G., additional, Kozhuharov, V., additional, Lanfranchi, G., additional, Martellotti, S., additional, Moulson, M., additional, Spadaro, T., additional, Tinti, G., additional, Ambrosino, F., additional, Capussela, T., additional, Corvino, M., additional, Di Filippo, D., additional, Fiorenza, R., additional, Massarotti, P., additional, Mirra, M., additional, Napolitano, M., additional, Saracino, G., additional, Anzivino, G., additional, Brizioli, F., additional, Imbergamo, E., additional, Lollini, R., additional, Piandani, R., additional, Santoni, C., additional, Barbanera, M., additional, Cenci, P., additional, Checcucci, B., additional, Lubrano, P., additional, Lupi, M., additional, Pepe, M., additional, Piccini, M., additional, Costantini, F., additional, Di Lella, L., additional, Doble, N., additional, Giorgi, M., additional, Giudici, S., additional, Lamanna, G., additional, Lari, E., additional, Pedreschi, E., additional, Sozzi, M., additional, Cerri, C., additional, Fantechi, R., additional, Pontisso, L., additional, Spinella, F., additional, Mannelli, I., additional, D'Agostini, G., additional, Raggi, M., additional, Biagioni, A., additional, Cretaro, P., additional, Frezza, O., additional, Leonardi, E., additional, Lonardo, A., additional, Turisini, M., additional, Valente, P., additional, Vicini, P., additional, Ammendola, R., additional, Bonaiuto, V., additional, Fucci, A., additional, Salamon, A., additional, Sargeni, F., additional, Arcidiacono, R., additional, Bloch-Devaux, B., additional, Boretto, M., additional, Menichetti, E., additional, Migliore, E., additional, Soldi, D., additional, Biino, C., additional, Filippi, A., additional, Marchetto, F., additional, Engelfried, J., additional, Estrada-Tristan, N., additional, Bragadireanu, A.M., additional, Ghinescu, S.A., additional, Hutanu, O.E., additional, Baeva, A., additional, Baigarashev, D., additional, Emelyanov, D., additional, Enik, T., additional, Falaleev, V., additional, Kekelidze, V., additional, Korotkova, A., additional, Litov, L., additional, Madigozhin, D., additional, Misheva, M., additional, Molokanova, N., additional, Movchan, S., additional, Polenkevich, I., additional, Potrebenikov, Yu., additional, Shkarovskiy, S., additional, Zinchenko, A., additional, Fedotov, S., additional, Gushchin, E., additional, Khotyantsev, A., additional, Kudenko, Y., additional, Kurochka, V., additional, Medvedeva, M., additional, Mefodev, A., additional, Kholodenko, S., additional, Kurshetsov, V., additional, Obraztsov, V., additional, Ostankov, A., additional, Semenov, V., additional, Sugonyaev, V., additional, Yushchenko, O., additional, Bician, L., additional, Blazek, T., additional, Cerny, V., additional, Kucerova, Z., additional, Bernhard, J., additional, Ceccucci, A., additional, Danielsson, H., additional, De Simone, N., additional, Duval, F., additional, Döbrich, B., additional, Federici, L., additional, Gamberini, E., additional, Gatignon, L., additional, Guida, R., additional, Hahn, F., additional, Holzer, E.B., additional, Jenninger, B., additional, Koval, M., additional, Laycock, P., additional, Lehmann Miotto, G., additional, Lichard, P., additional, Mapelli, A., additional, Marchevski, R., additional, Massri, K., additional, Noy, M., additional, Palladino, V., additional, Perrin-Terrin, M., additional, Pinzino, J., additional, Ryjov, V., additional, Schuchmann, S., additional, Venditti, S., additional, Bache, T., additional, Brunetti, M.B., additional, Duk, V., additional, Fascianelli, V., additional, Fry, J.R., additional, Gonnella, F., additional, Goudzovski, E., additional, Henshaw, J., additional, Iacobuzio, L., additional, Lazzeroni, C., additional, Lurkin, N., additional, Newson, F., additional, Parkinson, C., additional, Romano, A., additional, Sergi, A., additional, Sturgess, A., additional, Swallow, J., additional, Tomczak, A., additional, Heath, H., additional, Page, R., additional, Trilov, S., additional, Angelucci, B., additional, Britton, D., additional, Graham, C., additional, Protopopescu, D., additional, Carmignani, J., additional, Dainton, J.B., additional, Jones, R.W.L., additional, Ruggiero, G., additional, Fulton, L., additional, Hutchcroft, D., additional, Maurice, E., additional, Wrona, B., additional, Conovaloff, A., additional, Cooper, P., additional, Coward, D., additional, and Rubin, P., additional
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- 2023
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27. Searches for lepton number violating K+ decays
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E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, T. Numao, Y. Petrov, B. Velghe, D. Bryman, J. Fu, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, G. Mannocchi, S. Martellotti, M. Moulson, T. Spadaro, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D'Agostini, M. Raggi, A. Biagioni, E. Leonardi, A. Lonardo, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A.M. Bragadireanu, S.A. Ghinescu, O.E. Hutanu, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, L. Litov, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E.B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M.B. Brunetti, V. Duk, V. Fascianelli, J.R. Fry, F. Gonnella, E. Goudzovski, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J.B. Dainton, R.W.L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, and P. Rubin
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Physics ,QC1-999 - Abstract
The NA62 experiment at CERN reports a search for the lepton number violating decays K+→π−e+e+ and K+→π−μ+μ+ using a data sample collected in 2017. No signals are observed, and upper limits on the branching fractions of these decays of 2.2×10−10 and 4.2×10−11 are obtained, respectively, at 90% confidence level. These upper limits improve on previously reported measurements by factors of 3 and 2, respectively.
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- 2019
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28. A study of the $K^+ \to \pi^0 e^+ \nu \gamma$ decay
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Cortina Gil, Eduardo, Minucci, Elisa, Padolski, Sergey, Petrov, Plamen, Velghe, Bob, Bryman, Douglas, Fu, Ji, Numao, Toshio, Petrov, Yevgeniy, Wong, Vincent Wai Sum, Husek, Tomas, Kampf, Karol, Zamkovsky, Michal, Jerhot, Jan, Aliberti, Riccardo, Khoriauli, Gia, Kunze, Jonas, Lomidze, David, Marchevski, Radoslav, Peruzzo, Letizia, Vormstein, Mario, Wanke, Rainer, Cotta Ramusino, Angelo, Dalpiaz, Pietro, Fiorini, Massimiliano, Gamberini, Enrico, Gianoli, Alberto, Neri, Ilaria, Norton, Alan, Petrucci, Ferruccio, Wahl, Heinrich, Bizzeti, Andrea, Bucci, Francesca, Iacopini, Enrico, Latino, Giuseppe, Lenti, Massimo, Parenti, Andrea, Volpe, Roberta, Antonelli, Antonella, Gonnella, Francesco, Lamanna, Gianluca, Lanfranchi, Gaia, Tinti, Gemma, Martellotti, Silvia, Moulson, Matthew, Kozhuharov, Venelin, Litov, Leandar, Georgiev, Georgi, Raggi, Mauro, Spadaro, Tommaso, Ambrosino, Fabio, Fiorenza, Renato, Capussela, Tiziana, Corvino, Michele, Di Filippo, Domenico, Massarotti, Paolo, Mirra, Marco, Napolitano, Marco, Saracino, Giulio, Anzivino, Giuseppina, Imbergamo, Ermanno, Lollini, Riccardo, Santoni, Cristiano, Brizioli, Francesco, Barbanera, Mattia, Cenci, Patrizia, Checcucci, Bruno, Duk, Viacheslav, Lupi, Matteo, Pepe, Monica, Piccini, Mauro, Lubrano, Pasquale, Costantini, Flavio, Doble, Niels, Giorgi, Marcello, Giudici, Sergio, Lari, Enrico, Pinzino, Jacopo, Pontisso, Luca, Sozzi, Marco, Di Lella, Luigi, Mannelli, Italo, Cerri, Claudio, Fantechi, Riccardo, Pedreschi, Elena, Piandani, Roberto, Spinella, Franco, Biagioni, Andrea, D'Agostini, Giulio, Leonardi, Emanuele, Lonardo, Alessandro, Valente, Paolo, Vicini, Piero, Cretaro, Paolo, Turisini, Matteo, Frezza, Ottorino, Ammendola, Roberto, Bonaiuto, Vincenzo, De Simone, Nicola, Federici, Luca, Fucci, Adolfo, Salamon, Andrea, Sargeni, Fausto, Arcidiacono, Roberta, Biino, Cristina, Bloch-Devaux, Brigitte, Boretto, Marco, Filippi, Alessandra, Iacobuzio, Lorenza, Marchetto, Flavio, Menichetti, Ezio, Migliore, Ernesto, Soldi, Dario, Engelfried, Jürgen, Estrada-Tristan, Nora, Bragadireanu, Alexandru Mario, Ghinescu, Stefan Alexandru, Hutanu, Ovidiu Emanuel, Enik, Temur, Falaleev, Valeri, Kekelidze, Vladimir, Korotkova, Anna, Madigozhin, Dmitry, Misheva, Milena, Molokanova, Natalia, Movchan, Sergei, Polenkevich, Irina, Potrebenikov, Yuri, Shkarovskiy, Sergey, Zinchenko, Alexander, Baeva, Aigul, Baigarashev, Dosbol, Emelyanov, Dmitry, Fedotov, Sergei, Khotyantsev, Alexey, Gushchin, Evgeny, Kleimenova, Alina, Kudenko, Yury, Kurochka, Viktoriia, Medvedeva, Mariia, Mefodev, Aleksandr, Shaikhiev, Artur, Kholodenko, Sergey, Kurshetsov, Viktor, Obraztsov, Vladimir, Ostankov, Aleksandr, Semenov, Vitali, Sugonyaev, Valentin, Yushchenko, Oleg, Bician, Lubos, Blazek, Tomas, Cerny, Vladimir, Koval, Michal, Kucerova, Zuzana, Ceccucci, Augusto, Bernhard, Johannes, Danielsson, Hans, Döbrich, Babette, Duval, Francois, Gatignon, Lau, Guida, Roberto, Hahn, Ferdinand, Holzer, Eva Barbara, Jenninger, Berthold, Laycock, Paul, Lehmann Miotto, Giovanna, Lichard, Peter, Mapelli, Alessandro, Noy, Matthew, Palladino, Vito, Perrin-Terrin, Mathieu, Ruggiero, Giuseppe, Ryjov, Vladimir, Schuchmann, Simone, Venditti, Stefano, Brunetti, Maria Brigida, Bache, Thomas, Goudzovski, Evgueni, Henshaw, Jack, Tomczak, Adam, Lazzeroni, Cristina, Fascianelli, Valeria, Lurkin, Nicolas, Newson, Francis, Parkinson, Christopher, Romano, Angela, Sergi, Antonino, Sturgess, Andrew, Swallow, Joel, Heath, Helen, Page, Ryan, Trilov, Stoyan, Angelucci, Bruno, Britton, David, Protopopescu, Dan, Graham, Connor, Jones, Roger William Lewis, Dainton, John Bourke, Fry, John Richard, Fulton, Liam, Hutchcroft, David, Carmignani, Joseph, Massri, Karim, Maurice, Emilie, Wrona, Bozydar, Conovaloff, Adam, Cooper, Peter, Coward, David, Rubin, Philip David, Hives, Zdenko, Akmete, Atakan Tugberk, Soldani, Mattia, Bandiera, Laura, Mazzolari, Andrea, Romagnoni, Marco, Sytov, Alexei, Panichi, Ilaria, Lo Chiatto, Prisco, D'Errico, Mariaelena, Giordano, Raffaele, Briano Olvera, Alejandro, Reyes Santos, Marco Antonio, Boboc, Petre, Kereibay, Dias, Gorshanov, Konstantin, Okhotnikov, Artem, Sadovskiy, Alexander, and Sanders, Jack
- Subjects
Particle Physics - Experiment ,High Energy Physics - Experiment - Abstract
A sample of $1.3 \times 10^5 K^+ \to \pi^0 e^+ \nu \gamma$ candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017-2018. Branching fraction measurements are obtained at percent relative precision in three restricted kinematic regions, improving on existing results by a factor larger than two. An asymmetry, possibly related to T-violation, is investigated with no evidence observed within the achieved precision. A sample of $1.3 \times 10^5$$K^+ \to \pi^0 e^+ \nu \gamma$ candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017-2018. Branching fraction measurements are obtained at percent relative precision in three restricted kinematic regions, improving on existing results by a factor larger than two. An asymmetry, possibly related to T-violation, is investigated with no evidence observed within the achieved precision.
- Published
- 2023
29. A search for the → Decay
- Author
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V.W.S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D'Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A.M., Ghinescu, S.A., Hutanu, O.E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E.B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M.B., Duk, V., Fascianelli, V., Fry, J.R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J.B., Jones, R.W.L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Abstract
A search for the K+→μ−νe+e+ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016–2018. An upper limit of 8.1×10−11 is obtained for the decay branching fraction at 90% CL, improving by a factor of 250 over the previous search.
- Published
- 2023
30. Improved calorimetric particle identification in NA62 using machine learning techniques
- Author
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Cortina Gil, Eduardo, Minucci, Elisa, Padolski, Sergey, Petrov, Plamen, Velghe, Bob, Bryman, Douglas, Fu, Ji, Numao, Toshio, Petrov, Yevgeniy, Wong, Vincent Wai Sum, Yu, Mengda, Fedorko, Wojciech, Husek, Tomas, Kampf, Karol, Zamkovsky, Michal, Jerhot, Jan, Aliberti, Riccardo, Khoriauli, Gia, Kunze, Jonas, Lomidze, David, Marchevski, Radoslav, Peruzzo, Letizia, Vormstein, Mario, Wanke, Rainer, Cotta Ramusino, Angelo, Dalpiaz, Pietro, Fiorini, Massimiliano, Gamberini, Enrico, Gianoli, Alberto, Neri, Ilaria, Norton, Alan, Petrucci, Ferruccio, Wahl, Heinrich, Bizzeti, Andrea, Bucci, Francesca, Iacopini, Enrico, Latino, Giuseppe, Lenti, Massimo, Parenti, Andrea, Volpe, Roberta, Antonelli, Antonella, Gonnella, Francesco, Lamanna, Gianluca, Lanfranchi, Gaia, Tinti, Gemma, Martellotti, Silvia, Moulson, Matthew, Kozhuharov, Venelin, Litov, Leandar, Georgiev, Georgi, Raggi, Mauro, Spadaro, Tommaso, Ambrosino, Fabio, Fiorenza, Renato, Capussela, Tiziana, Corvino, Michele, Di Filippo, Domenico, Massarotti, Paolo, Mirra, Marco, Napolitano, Marco, Saracino, Giulio, Anzivino, Giuseppina, Imbergamo, Ermanno, Lollini, Riccardo, Santoni, Cristiano, Brizioli, Francesco, Barbanera, Mattia, Cenci, Patrizia, Checcucci, Bruno, Duk, Viacheslav, Lupi, Matteo, Pepe, Monica, Piccini, Mauro, Lubrano, Pasquale, Costantini, Flavio, Doble, Niels, Giorgi, Marcello, Giudici, Sergio, Lari, Enrico, Pinzino, Jacopo, Pontisso, Luca, Sozzi, Marco, Di Lella, Luigi, Mannelli, Italo, Cerri, Claudio, Fantechi, Riccardo, Pedreschi, Elena, Piandani, Roberto, Spinella, Franco, Biagioni, Andrea, D'Agostini, Giulio, Leonardi, Emanuele, Lonardo, Alessandro, Valente, Paolo, Vicini, Piero, Cretaro, Paolo, Turisini, Matteo, Frezza, Ottorino, Ammendola, Roberto, Bonaiuto, Vincenzo, De Simone, Nicola, Federici, Luca, Fucci, Adolfo, Salamon, Andrea, Sargeni, Fausto, Arcidiacono, Roberta, Biino, Cristina, Bloch-Devaux, Brigitte, Boretto, Marco, Filippi, Alessandra, Iacobuzio, Lorenza, Marchetto, Flavio, Menichetti, Ezio, Migliore, Ernesto, Soldi, Dario, Engelfried, Jürgen, Estrada-Tristan, Nora, Bragadireanu, Alexandru Mario, Ghinescu, Stefan Alexandru, Hutanu, Ovidiu Emanuel, Enik, Temur, Falaleev, Valeri, Kekelidze, Vladimir, Korotkova, Anna, Madigozhin, Dmitry, Misheva, Milena, Molokanova, Natalia, Movchan, Sergei, Polenkevich, Irina, Potrebenikov, Yuri, Shkarovskiy, Sergey, Zinchenko, Alexander, Baeva, Aigul, Baigarashev, Dosbol, Emelyanov, Dmitry, Fedotov, Sergei, Khotyantsev, Alexey, Gushchin, Evgeny, Kleimenova, Alina, Kudenko, Yury, Kurochka, Viktoriia, Medvedeva, Mariia, Mefodev, Aleksandr, Shaikhiev, Artur, Kholodenko, Sergey, Kurshetsov, Viktor, Obraztsov, Vladimir, Ostankov, Aleksandr, Semenov, Vitali, Sugonyaev, Valentin, Yushchenko, Oleg, Bician, Lubos, Blazek, Tomas, Cerny, Vladimir, Koval, Michal, Kucerova, Zuzana, Ceccucci, Augusto, Bernhard, Johannes, Danielsson, Hans, Döbrich, Babette, Duval, Francois, Gatignon, Lau, Guida, Roberto, Hahn, Ferdinand, Holzer, Eva Barbara, Jenninger, Berthold, Laycock, Paul, Lehmann Miotto, Giovanna, Lichard, Peter, Mapelli, Alessandro, Noy, Matthew, Palladino, Vito, Perrin-Terrin, Mathieu, Ruggiero, Giuseppe, Ryjov, Vladimir, Schuchmann, Simone, Venditti, Stefano, Brunetti, Maria Brigida, Bache, Thomas, Goudzovski, Evgueni, Henshaw, Jack, Tomczak, Adam, Lazzeroni, Cristina, Fascianelli, Valeria, Lurkin, Nicolas, Newson, Francis, Parkinson, Christopher, Romano, Angela, Sergi, Antonino, Sturgess, Andrew, Swallow, Joel, Heath, Helen, Page, Ryan, Trilov, Stoyan, Angelucci, Bruno, Britton, David, Protopopescu, Dan, Graham, Connor, Jones, Roger William Lewis, Dainton, John Bourke, Fry, John Richard, Fulton, Liam, Hutchcroft, David, Carmignani, Joseph, Massri, Karim, Maurice, Emilie, Wrona, Bozydar, Conovaloff, Adam, Cooper, Peter, Coward, David, Rubin, Philip David, Hives, Zdenko, Akmete, Atakan Tugberk, Soldani, Mattia, Bandiera, Laura, Mazzolari, Andrea, Romagnoni, Marco, Sytov, Alexei, Panichi, Ilaria, Lo Chiatto, Prisco, D'Errico, Mariaelena, Giordano, Raffaele, Briano Olvera, Alejandro, Reyes Santos, Marco Antonio, Boboc, Petre, Kereibay, Dias, Gorshanov, Konstantin, Okhotnikov, Artem, Sadovskiy, Alexander, and Sanders, Jack
- 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
Measurement of the ultra-rare $K^+\to\pi^+\nu\bar\nu$ decay at the NA62 experiment at CERN requires high-performance particle identification to distinguish muons from pions. Calorimetric identification currently in use, based on a boosted decision tree algorithm, achieves a muon misidentification probability of $1.2\times 10^{-5}$ for a pion identification efficiency of 75% in the momentum range of 15-40 GeV/$c$. In this work, calorimetric identification performance is improved by developing an algorithm based on a convolutional neural network classifier augmented by a filter. Muon misidentification probability is reduced by a factor of six with respect to the current value for a fixed pion-identification efficiency of 75%. Alternatively, pion identification efficiency is improved from 72% to 91% for a fixed muon misidentification probability of $10^{-5}$., Comment: Updated author list and Ref. 4
- Published
- 2023
- Full Text
- View/download PDF
31. Addendum to: A measurement of the K+ → π+μ+μ− decay
- Author
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A., Ghinescu, S., Hutanu, O., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M., Duk, V., Fascianelli, V., Fry, J., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J., Jones, R., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Subjects
Settore FIS/04 - Published
- 2023
32. A search for the $K^+ \to \mu^- \nu e^+ e^+$ decay
- Author
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Cortina Gil, Eduardo, Minucci, Elisa, Padolski, Sergey, Petrov, Plamen, Velghe, Bob, Bryman, Douglas, Fu, Ji, Numao, Toshio, Petrov, Yevgeniy, Wong, Vincent Wai Sum, Husek, Tomas, Kampf, Karol, Zamkovsky, Michal, Jerhot, Jan, Aliberti, Riccardo, Khoriauli, Gia, Kunze, Jonas, Lomidze, David, Marchevski, Radoslav, Peruzzo, Letizia, Vormstein, Mario, Wanke, Rainer, Cotta Ramusino, Angelo, Dalpiaz, Pietro, Fiorini, Massimiliano, Gamberini, Enrico, Gianoli, Alberto, Neri, Ilaria, Norton, Alan, Petrucci, Ferruccio, Wahl, Heinrich, Bizzeti, Andrea, Bucci, Francesca, Iacopini, Enrico, Latino, Giuseppe, Lenti, Massimo, Parenti, Andrea, Volpe, Roberta, Antonelli, Antonella, Gonnella, Francesco, Lamanna, Gianluca, Lanfranchi, Gaia, Tinti, Gemma, Martellotti, Silvia, Moulson, Matthew, Kozhuharov, Venelin, Litov, Leandar, Georgiev, Georgi, Raggi, Mauro, Spadaro, Tommaso, Ambrosino, Fabio, Fiorenza, Renato, Capussela, Tiziana, Corvino, Michele, Di Filippo, Domenico, Massarotti, Paolo, Mirra, Marco, Napolitano, Marco, Saracino, Giulio, Anzivino, Giuseppina, Imbergamo, Ermanno, Lollini, Riccardo, Santoni, Cristiano, Brizioli, Francesco, Barbanera, Mattia, Cenci, Patrizia, Checcucci, Bruno, Duk, Viacheslav, Lupi, Matteo, Pepe, Monica, Piccini, Mauro, Lubrano, Pasquale, Costantini, Flavio, Doble, Niels, Giorgi, Marcello, Giudici, Sergio, Lari, Enrico, Pinzino, Jacopo, Pontisso, Luca, Sozzi, Marco, Di Lella, Luigi, Mannelli, Italo, Cerri, Claudio, Fantechi, Riccardo, Pedreschi, Elena, Piandani, Roberto, Spinella, Franco, Biagioni, Andrea, d'Agostini, Giulio, Leonardi, Emanuele, Lonardo, Alessandro, Valente, Paolo, Vicini, Piero, Cretaro, Paolo, Turisini, Matteo, Frezza, Ottorino, Ammendola, Roberto, Bonaiuto, Vincenzo, de Simone, Nicola, Federici, Luca, Fucci, Adolfo, Salamon, Andrea, Sargeni, Fausto, Arcidiacono, Roberta, Biino, Cristina, Bloch-Devaux, Brigitte, Boretto, Marco, Filippi, Alessandra, Iacobuzio, Lorenza, Marchetto, Flavio, Menichetti, Ezio, Migliore, Ernesto, Soldi, Dario, Engelfried, Jürgen, Estrada-Tristan, Nora, Bragadireanu, Alexandru Mario, Ghinescu, Stefan Alexandru, Hutanu, Ovidiu Emanuel, Enik, Temur, Falaleev, Valeri, Kekelidze, Vladimir, Korotkova, Anna, Madigozhin, Dmitry, Misheva, Milena, Molokanova, Natalia, Movchan, Sergei, Polenkevich, Irina, Potrebenikov, Yuri, Shkarovskiy, Sergey, Zinchenko, Alexander, Baeva, Aigul, Baigarashev, Dosbol, Emelyanov, Dmitry, Fedotov, Sergei, Khotyantsev, Alexey, Gushchin, Evgeny, Kleimenova, Alina, Kudenko, Yury, Kurochka, Viktoriia, Medvedeva, Mariia, Mefodev, Aleksandr, Shaikhiev, Artur, Kholodenko, Sergey, Kurshetsov, Viktor, Obraztsov, Vladimir, Ostankov, Aleksandr, Semenov, Vitali, Sugonyaev, Valentin, Yushchenko, Oleg, Bician, Lubos, Blazek, Tomas, Cerny, Vladimir, Koval, Michal, Kucerova, Zuzana, Ceccucci, Augusto, Bernhard, Johannes, Danielsson, Hans, Döbrich, Babette, Duval, Francois, Gatignon, Lau, Guida, Roberto, Hahn, Ferdinand, Holzer, Eva Barbara, Jenninger, Berthold, Laycock, Paul, Lehmann Miotto, Giovanna, Lichard, Peter, Mapelli, Alessandro, Noy, Matthew, Palladino, Vito, Perrin-Terrin, Mathieu, Ruggiero, Giuseppe, Ryjov, Vladimir, Schuchmann, Simone, Venditti, Stefano, Brunetti, Maria Brigida, Bache, Thomas, Goudzovski, Evgueni, Henshaw, Jack, Tomczak, Adam, Lazzeroni, Cristina, Fascianelli, Valeria, Lurkin, Nicolas, Newson, Francis, Parkinson, Christopher, Romano, Angela, Sergi, Antonino, Sturgess, Andrew, Swallow, Joel, Heath, Helen, Page, Ryan, Trilov, Stoyan, Angelucci, Bruno, Britton, David, Protopopescu, Dan, Graham, Connor, Jones, Roger William Lewis, Dainton, John Bourke, Fry, John Richard, Fulton, Liam, Hutchcroft, David, Carmignani, Joseph, Massri, Karim, Maurice, Emilie, Wrona, Bozydar, Conovaloff, Adam, Cooper, Peter, Coward, David, Rubin, Philip David, 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), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and NA62
- Subjects
flavor ,CERN Lab ,lepton ,conservation law ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,lepton number ,branching ratio ,NA62 ,Particle Physics - Experiment ,High Energy Physics - Experiment - Abstract
A search for the $K^+\to\mu^-\nu e^+e^+$ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016--2018. An upper limit of $8.1\times 10^{-11}$ is obtained for the decay branching fraction at 90% CL, improving by a factor of 250 over the previous search., Comment: Final version, accepted for publication in Physics Letters B
- Published
- 2022
33. A measurement of the $K^+ \to \pi^+ \mu^+ \mu^-$ decay
- Author
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Cortina Gil, Eduardo, Minucci, Elisa, Padolski, Sergey, Petrov, Plamen, Velghe, Bob, Bryman, Douglas, Fu, J., Numao, Toshio, Petrov, Yevgeniy, Wong, Vincent Wai Sum, Husek, Tomas, Kampf, Karol, Zamkovsky, Michal, Jerhot, Jan, Aliberti, Riccardo, Khoriauli, Gia, Kunze, Jonas, Lomidze, David, Potrebenikov, Yu., Marchevski, Radoslav, Peruzzo, Letizia, Vormstein, Mario, Wanke, Rainer, Cotta Ramusino, Angelo, Dalpiaz, Pietro, Fiorini, Massimiliano, Gamberini, Enrico, Gianoli, Alberto, Neri, Ilaria, Norton, Alan, Petrucci, Ferruccio, Wahl, Heinrich, Bizzeti, Andrea, Bucci, Francesca, Iacopini, Enrico, Latino, Giuseppe, Lenti, Massimo, Parenti, Andrea, Volpe, Roberta, Antonelli, Antonella, Gonnella, Francesco, Lamanna, Gianluca, Lanfranchi, Gaia, Tinti, Gemma, Martellotti, Silvia, Moulson, Matthew, Kozhuharov, Venelin, Litov, Leandar, Georgiev, Georgi, Raggi, Mauro, Spadaro, Tommaso, Ambrosino, Fabio, Fiorenza, Renato, Capussela, Tiziana, Corvino, Michele, Di Filippo, Domenico, Massarotti, Paolo, Mirra, Marco, Napolitano, Marco, Saracino, Giulio, Anzivino, Giuseppina, Imbergamo, Ermanno, Lollini, Riccardo, Santoni, Cristiano, Brizioli, Francesco, Barbanera, Mattia, Cenci, Patrizia, Checcucci, Bruno, Duk, Viacheslav, Lupi, Matteo, Pepe, Monica, Piccini, Mauro, Lubrano, Pasquale, Costantini, Flavio, Doble, Niels, Giorgi, Marcello, Giudici, Sergio, Lari, Enrico, Pinzino, Jacopo, Pontisso, Luca, Sozzi, Marco, Di Lella, Luigi, Mannelli, Italo, Cerri, Claudio, Fantechi, Riccardo, Pedreschi, Elena, Piandani, Roberto, Spinella, Franco, Biagioni, Andrea, d'Agostini, Giulio, Leonardi, Emanuele, Lonardo, Alessandro, Valente, Paolo, Vicini, Piero, Cretaro, Paolo, Turisini, Matteo, Frezza, Ottorino, Ammendola, Roberto, Bonaiuto, Vincenzo, de Simone, Nicola, Federici, Luca, Fucci, Adolfo, Salamon, Andrea, Sargeni, Fausto, Arcidiacono, Roberta, Biino, Cristina, Bloch-Devaux, Brigitte, Boretto, Marco, Filippi, Alessandra, Iacobuzio, Lorenza, Marchetto, Flavio, Menichetti, Ezio, Migliore, Ernesto, Soldi, Dario, Engelfried, Jürgen, Estrada-Tristan, Nora, Bragadireanu, Alexandru Mario, Ghinescu, Stefan Alexandru, Hutanu, Ovidiu Emanuel, Enik, Temur, Falaleev, Valeri, Kekelidze, Vladimir, Korotkova, Anna, Madigozhin, Dmitry, Misheva, Milena, Molokanova, Natalia, Movchan, Sergei, Polenkevich, Irina, Potrebenikov, Yuri, Shkarovskiy, Sergey, Zinchenko, Alexander, Baeva, Aigul, Baigarashev, Dosbol, Emelyanov, Dmitry, Fedotov, Sergei, Khotyantsev, Alexey, Gushchin, Evgeny, Kleimenova, Alina, Kudenko, Yury, Kurochka, Viktoriia, Medvedeva, Mariia, Mefodev, Aleksandr, Shaikhiev, Artur, Kholodenko, Sergey, Kurshetsov, Viktor, Obraztsov, Vladimir, Ostankov, Aleksandr, Semenov, Vitali, Sugonyaev, Valentin, Yushchenko, Oleg, Bician, Lubos, Blazek, Tomas, Cerny, Vladimir, Koval, Michal, Kucerova, Zuzana, Ceccucci, Augusto, Bernhard, Johannes, Danielsson, Hans, Döbrich, Babette, Duval, Francois, Gatignon, Lau, Guida, Roberto, Hahn, Ferdinand, Holzer, Eva Barbara, Jenninger, Berthold, Laycock, Paul, Lehmann Miotto, Giovanna, Lichard, Peter, Mapelli, Alessandro, Noy, Matthew, Palladino, Vito, Perrin-Terrin, Mathieu, Ruggiero, Giuseppe, Ryjov, Vladimir, Schuchmann, Simone, Venditti, Stefano, Brunetti, Maria Brigida, Bache, Thomas, Goudzovski, Evgueni, Henshaw, Jack, Tomczak, Adam, Lazzeroni, Cristina, Fascianelli, Valeria, Lurkin, Nicolas, Newson, Francis, Parkinson, Christopher, Romano, Angela, Sergi, Antonino, Sturgess, Andrew, Swallow, Joel, Heath, Helen, Page, Ryan, Trilov, Stoyan, Angelucci, Bruno, Britton, David, Protopopescu, Dan, Graham, Connor, Jones, Roger William Lewis, Dainton, John Bourke, Fry, John Richard, Fulton, Liam, Hutchcroft, David, Carmignani, Joseph, Massri, Karim, Maurice, Emilie, Wrona, Bozydar, Conovaloff, Adam, Cooper, Peter, Coward, David, Rubin, Philip David, 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), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and NA62
- Subjects
Fixed Target Experiments ,data analysis method ,background ,Flavour Changing Neutral Currents ,perturbation theory: chiral ,dimuon: mass spectrum ,CERN SPS ,pi+ ,mass dependence ,NA62 ,High Energy Physics - Experiment ,muon: pair production ,K+: semileptonic decay ,+pi%2B+muon%2B+muon%22">K+ --> pi+ muon+ muon ,branching ratio: measured ,Rare Decay ,K+: branching ratio ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,decay: form factor ,Branching fraction ,K+: secondary beam ,Particle Physics - Experiment ,K: form factor ,experimental results - Abstract
A sample of $2.8 \times 10^4$ $K^{+} \to \pi^{+} \mu^{+} \mu^{-}$ candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017--2018. The model-independent branching fraction is measured to be $(9.15 \pm 0.08)\times 10^{-8}$, a factor three more precise than previous measurements. The decay form factor is presented as a function of the squared dimuon mass. A measurement of the form factor parameters and their uncertainties is performed using a description based on Chiral Perturbation Theory at $\mathcal{O}(p^6)$., Comment: 17 pages, 5 figures. Updated version (6 October 2022) accepted for publication in JHEP
- Published
- 2022
34. A measurement of the K+ → pi+ μ+ μ− decay
- Author
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Cortina Gil, E, Kleimenova, A, Minucci, E, Padolski, S, Petrov, P, Shaikhiev, A, Volpe, R, Numao, T, Petrov, Y, Velghe, B, Wong, Vws, Bryman, D, Fu, J, Husek, T, Jerhot, J, Kampf, K, Zamkovsky, M, Aliberti, R, Khoriauli, G, Kunze, J, Lomidze, D, Peruzzo, L, Vormstein, M, Wanke, R, Dalpiaz, P, Fiorini, M, Neri, I, Norton, A, Petrucci, F, Wahl, H, Cotta Ramusino, A, Gianoli, A, Iacopini, E, Latino, G, Lenti, M, Parenti, A, Bizzeti, A, Bucci, F, Antonelli, A, Georgiev, G, Kozhuharov, V, Lanfranchi, G, Martellotti, S, Moulson, M, Spadaro, T, Tinti, G, Ambrosino, F, Capussela, T, Corvino, M, Di Filippo, D, Fiorenza, R, Massarotti, P, Mirra, M, Napolitano, M, Saracino, G, Anzivino, G, Brizioli, F, Imbergamo, E, Lollini, R, Piandani, R, Santoni, C, Barbanera, M, Cenci, P, Checcucci, B, Lubrano, P, Lupi, M, Pepe, M, Piccini, M, Costantini, F, Di Lella, L, Doble, N, Giorgi, M, Giudici, S, Lamanna, G, Lari, E, Pedreschi, E, Sozzi, M, Cerri, C, Fantechi, R, Pontisso, L, Spinella, F, Mannelli, I, D’Agostini, G, Raggi, M, Biagioni, A, Cretaro, P, Frezza, O, Leonardi, E, Lonardo, A, Turisini, M, Valente, P, Vicini, P, Ammendola, R, Bonaiuto, V, Fucci, A, Salamon, A, Sargeni, F, Arcidiacono, R, Bloch-Devaux, B, Boretto, M, Menichetti, E, Migliore, E, Soldi, D, Biino, C, Filippi, A, Marchetto, F, Engelfried, J, Estrada-Tristan, N, Bragadireanu, Am, Ghinescu, Sa, Hutanu, Oe, Baeva, A, Baigarashev, D, Emelyanov, D, Enik, T, Falaleev, V, Kekelidze, V, Korotkova, A, Litov, L, Madigozhin, D, Misheva, M, Molokanova, N, Movchan, S, Polenkevich, I, Potrebenikov, Y, Shkarovskiy, S, Zinchenko, A, Fedotov, S, Gushchin, E, Khotyantsev, A, Kudenko, Y, Kurochka, V, Medvedeva, M, Mefodev, A, Kholodenko, S, Kurshetsov, V, Obraztsov, V, Ostankov, A, Semenov, V, Sugonyaev, V, Yushchenko, O, Bician, L, Blazek, T, Cerny, V, Kucerova, Z, Bernhard, J, Ceccucci, A, Danielsson, H, De Simone, N, Duval, F, Döbrich, B, Federici, L, Gamberini, E, Gatignon, L, Guida, R, Hahn, F, Holzer, Eb, Jenninger, B, Koval, M, Laycock, P, Lehmann Miotto, G, Lichard, P, Mapelli, A, Marchevski, R, Massri, K, Noy, M, Palladino, V, Perrin-Terrin, M, Pinzino, J, Ryjov, V, Schuchmann, S, Venditti, S, Bache, T, Brunetti, Mb, Duk, V, Fascianelli, V, Fry, Jr, Gonnella, F, Goudzovski, E, Henshaw, J, Iacobuzio, L, Lazzeroni, C, Lurkin, N, Newson, F, Parkinson, C, Romano, A, Sergi, A, Sturgess, A, Swallow, J, Tomczak, A, Heath, H, Page, R, Trilov, S, Angelucci, B, Britton, D, Graham, C, Protopopescu, D, Carmignani, J, Dainton, Jb, Jones, Rwl, Ruggiero, G, Fulton, L, Hutchcroft, D, Maurice, E, Wrona, B, Conovaloff, A, Cooper, P, Coward, D, Rubin, P, Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D???agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., D??brich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Subjects
Fixed Target Experiments ,Nuclear and High Energy Physics ,Settore FIS/04 ,Flavour Changing Neutral Currents ,Rare Decay ,Branching fraction - Abstract
A sample of 2.8 × 104K+ → π+μ+μ− candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017–2018. The model-independent branching fraction is measured to be (9.15 ± 0.08) × 10−8, a factor three more precise than previous measurements. The decay form factor is presented as a function of the squared dimuon mass. A measurement of the form factor parameters and their uncertainties is performed using a description based on Chiral Perturbation Theory at $$ \mathcal{O} $$ O (p6).
- Published
- 2022
35. Searches for lepton number violating → ( ) Decays
- Author
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Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V.W.S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D'Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A.M., Ghinescu, S.A., Hutanu, O.E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E.B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M.B., Duk, V., Fascianelli, V., Fry, J.R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J.B., Jones, R.W.L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Abstract
Searches for lepton number violating K+→π−e+e+ and K+→π−π0e+e+ decays have been performed using the complete dataset collected by the NA62 experiment at CERN in 2016–2018. Upper limits of 5.3×10−11 and 8.5×10−10 are obtained on the decay branching fractions at 90% confidence level. The former result improves by a factor of four over the previous best limit, while the latter result represents the first limit on the K+→π−π0e+e+ decay rate.
- Published
- 2022
36. New measurement of radiative decays at the NA62 Experiment at CERN: $K_{e3\gamma}$
- Author
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Biino, Cristina, Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Briano Olvera, A, Britton, D, Brizioli, F, Brunetti, M B, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, Cretaro, P, Dgostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, Drrico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Frezza, O, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, E B, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, R W, Kampf, K, Kekelidze, V, Kereibay, D, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmann Miotto, G, Leonardi, E, Lichard, P, Litov, L, Chiatto, P Lo, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Yu, Protopopescu, D, Raggi, M, Santos, M Reyes, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Turisini, M, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko , A
- Subjects
Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
The NA62 experiment at CERN reports new results from studies of radiative kaon decays ($Ke3\gamma$) $K^+ \rightarrow \pi^0 e^+ \nu \gamma$, using a data sample %recorded collected in 2017-2018. The sample comprises O(100k) Ke3g candidates with sub-percent background contaminations. Preliminary results including the most precise measurement of the $Ke3\gamma$ branching ratios and the T-asymmetry measurement in the $Ke3\gamma$ decay, are presented.
- Published
- 2022
37. Search for Lepton Number and Flavor Violation in <math><msup><mi>K</mi><mo>+</mo></msup></math> and <math><msup><mi>π</mi><mn>0</mn></msup></math> Decays
- Author
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Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Bache, T., Baeva, A., Baigarashev, D., Barbanera, M., Bernhard, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Bloch-Devaux, B., Bonaiuto, V., Boretto, M., Bragadireanu, A.M., Britton, D., Brizioli, F., Brunetti, M.B., Bryman, D., Bucci, F., Capussela, T., Carmignani, J., Ceccucci, A., Cenci, P., Cerny, V., Cerri, C., Checcucci, B., Conovaloff, A., Cooper, P., Cortina Gil, E., Corvino, M., Costantini, F., Cotta Ramusino, A., Coward, D., D'Agostini, G., Dainton, J.B., Dalpiaz, P., Danielsson, H., De Simone, N., Di Filippo, D., Di Lella, L., Doble, N., Duk, V., Duval, F., Döbrich, B., Emelyanov, D., Engelfried, J., Enik, T., Estrada-Tristan, N., Falaleev, V., Fantechi, R, Fascianelli, V., Federici, L., Fedotov, S., Filippi, A., Fiorini, M., Fry, J.R., Fu, J., Fucci, A., Fulton, L., Gamberini, E., Gatignon, L., Georgiev, G., Ghinescu, S.A., Gianoli, A., Giorgi, M., Giudici, S., Gonnella, F., Goudzovski, E., Graham, C., Guida, R., Gushchin, E., Hahn, F., Heath, H., Henshaw, J., Holzer, E.B., Husek, T., Hutanu, O.E., Hutchcroft, D., Iacobuzio, L., Iacopini, E., Imbergamo, E., Jenninger, B., Jerhot, J., Jones, R.W.L., Kampf, K., Kekelidze, V., Kholodenko, S., Khoriauli, G., Khotyantsev, A., Kleimenova, A., Korotkova, A., Koval, M., Kozhuharov, V., Kucerova, Z., Kudenko, Y., Kunze, J., Kurochka, V., Kurshetsov, V., Lamanna, G., Lanfranchi, G., Lari, E., Latino, G., Laycock, P., Lazzeroni, C., Lehmann Miotto, G., Lenti, M., Leonardi, E., Lichard, P., Litov, L., Lollini, R., Lomidze, D., Lonardo, A., Lubrano, P., Lupi, M., Lurkin, N., Madigozhin, D., Mannelli, I., Mapelli, A., Marchetto, F., Marchevski, R., Martellotti, S., Massarotti, P., Massri, K., Maurice, E., Medvedeva, M., Mefodev, A., Menichetti, E., Migliore, E., Minucci, E., Mirra, M., Misheva, M., Molokanova, N., Moulson, M., Movchan, S., Napolitano, M., Neri, I., Newson, F., Norton, A., Noy, M., Numao, T., Obraztsov, V., Ostankov, A., Padolski, S., Page, R., Palladino, V., Parenti, A., Parkinson, C., Pedreschi, E., Pepe, M., Perrin-Terrin, M., Peruzzo, L., Petrov, P., Petrov, Y., Petrucci, F., Piandani, R., Piccini, M., Pinzino, J., Polenkevich, I., Pontisso, L., Potrebenikov, Yu., Protopopescu, D., Raggi, M., Romano, A., Rubin, P., Ruggiero, G., Ryjov, V., Salamon, A., Santoni, C., Saracino, G., Sargeni, F., Schuchmann, S., Semenov, V., Sergi, A., Shaikhiev, A., Shkarovskiy, S., Soldi, D., Sozzi, M., Spadaro, T., Spinella, F., Sturgess, A., Sugonyaev, V., Swallow, J., Trilov, S., Valente, P., Velghe, B., Venditti, S., Vicini, P., Volpe, R., Vormstein, M., Wahl, H., Wanke, R., Wrona, B., Yushchenko, O., Zamkovsky, M., Zinchenko, A., NA62 Collaboration, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Bonaiuto, V, Boretto, M, Bragadireanu, A M, Britton, D, Brizioli, F, Brunetti, M B, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, D'Agostini, G, Dainton, J B, Dalpiaz, P, Danielsson, H, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Duk, V, Duval, F, Döbrich, B, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorini, M, Fry, J R, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S A, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Holzer, E B, Husek, T, Hutanu, O E, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, R W L, Kampf, K, Kekelidze, V, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lamanna, G, Lanfranchi, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lehmann Miotto, G, Lenti, M, Leonardi, E, Lichard, P, Litov, L, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Ostankov, A, Padolski, S, Page, R, Palladino, V, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Yu, Protopopescu, D, Raggi, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Trilov, S, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko, A
- Subjects
Settore FIS/04 - Abstract
Searches for the lepton number violating K+→π−μ+e+ decay and the lepton flavor violating K+→π+μ−e+ and π0→μ−e+ decays are reported using data collected by the NA62 experiment at CERN in 2017–2018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: B(K+→π−μ+e+)<4.2×10−11, B(K+→π+μ−e+)<6.6×10−11 and B(π0→μ−e+)<3.2×10−10. These results improve by 1 order of magnitude over previous results for these decay modes.
- Published
- 2021
38. Searches for lepton number violating K+ → π−(π0)e+e+ decays
- Author
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Cortina Gil, E., primary, Kleimenova, A., additional, Minucci, E., additional, Padolski, S., additional, Petrov, P., additional, Shaikhiev, A., additional, Volpe, R., additional, Numao, T., additional, Petrov, Y., additional, Velghe, B., additional, Wong, V.W.S., additional, Bryman, D., additional, Fu, J., additional, Husek, T., additional, Jerhot, J., additional, Kampf, K., additional, Zamkovsky, M., additional, Aliberti, R., additional, Khoriauli, G., additional, Kunze, J., additional, Lomidze, D., additional, Peruzzo, L., additional, Vormstein, M., additional, Wanke, R., additional, Dalpiaz, P., additional, Fiorini, M., additional, Neri, I., additional, Norton, A., additional, Petrucci, F., additional, Wahl, H., additional, Cotta Ramusino, A., additional, Gianoli, A., additional, Iacopini, E., additional, Latino, G., additional, Lenti, M., additional, Parenti, A., additional, Bizzeti, A., additional, Bucci, F., additional, Antonelli, A., additional, Georgiev, G., additional, Kozhuharov, V., additional, Lanfranchi, G., additional, Martellotti, S., additional, Moulson, M., additional, Spadaro, T., additional, Tinti, G., additional, Ambrosino, F., additional, Capussela, T., additional, Corvino, M., additional, Di Filippo, D., additional, Fiorenza, R., additional, Massarotti, P., additional, Mirra, M., additional, Napolitano, M., additional, Saracino, G., additional, Anzivino, G., additional, Brizioli, F., additional, Imbergamo, E., additional, Lollini, R., additional, Piandani, R., additional, Santoni, C., additional, Barbanera, M., additional, Cenci, P., additional, Checcucci, B., additional, Lubrano, P., additional, Lupi, M., additional, Pepe, M., additional, Piccini, M., additional, Costantini, F., additional, Di Lella, L., additional, Doble, N., additional, Giorgi, M., additional, Giudici, S., additional, Lamanna, G., additional, Lari, E., additional, Pedreschi, E., additional, Sozzi, M., additional, Cerri, C., additional, Fantechi, R., additional, Pontisso, L., additional, Spinella, F., additional, Mannelli, I., additional, D'Agostini, G., additional, Raggi, M., additional, Biagioni, A., additional, Cretaro, P., additional, Frezza, O., additional, Leonardi, E., additional, Lonardo, A., additional, Turisini, M., additional, Valente, P., additional, Vicini, P., additional, Ammendola, R., additional, Bonaiuto, V., additional, Fucci, A., additional, Salamon, A., additional, Sargeni, F., additional, Arcidiacono, R., additional, Bloch-Devaux, B., additional, Boretto, M., additional, Menichetti, E., additional, Migliore, E., additional, Soldi, D., additional, Biino, C., additional, Filippi, A., additional, Marchetto, F., additional, Engelfried, J., additional, Estrada-Tristan, N., additional, Bragadireanu, A.M., additional, Ghinescu, S.A., additional, Hutanu, O.E., additional, Baeva, A., additional, Baigarashev, D., additional, Emelyanov, D., additional, Enik, T., additional, Falaleev, V., additional, Kekelidze, V., additional, Korotkova, A., additional, Litov, L., additional, Madigozhin, D., additional, Misheva, M., additional, Molokanova, N., additional, Movchan, S., additional, Polenkevich, I., additional, Potrebenikov, Yu., additional, Shkarovskiy, S., additional, Zinchenko, A., additional, Fedotov, S., additional, Gushchin, E., additional, Khotyantsev, A., additional, Kudenko, Y., additional, Kurochka, V., additional, Medvedeva, M., additional, Mefodev, A., additional, Kholodenko, S., additional, Kurshetsov, V., additional, Obraztsov, V., additional, Ostankov, A., additional, Semenov, V., additional, Sugonyaev, V., additional, Yushchenko, O., additional, Bician, L., additional, Blazek, T., additional, Cerny, V., additional, Kucerova, Z., additional, Bernhard, J., additional, Ceccucci, A., additional, Danielsson, H., additional, De Simone, N., additional, Duval, F., additional, Döbrich, B., additional, Federici, L., additional, Gamberini, E., additional, Gatignon, L., additional, Guida, R., additional, Hahn, F., additional, Holzer, E.B., additional, Jenninger, B., additional, Koval, M., additional, Laycock, P., additional, Lehmann Miotto, G., additional, Lichard, P., additional, Mapelli, A., additional, Marchevski, R., additional, Massri, K., additional, Noy, M., additional, Palladino, V., additional, Perrin-Terrin, M., additional, Pinzino, J., additional, Ryjov, V., additional, Schuchmann, S., additional, Venditti, S., additional, Bache, T., additional, Brunetti, M.B., additional, Duk, V., additional, Fascianelli, V., additional, Fry, J.R., additional, Gonnella, F., additional, Goudzovski, E., additional, Henshaw, J., additional, Iacobuzio, L., additional, Lazzeroni, C., additional, Lurkin, N., additional, Newson, F., additional, Parkinson, C., additional, Romano, A., additional, Sergi, A., additional, Sturgess, A., additional, Swallow, J., additional, Tomczak, A., additional, Heath, H., additional, Page, R., additional, Trilov, S., additional, Angelucci, B., additional, Britton, D., additional, Graham, C., additional, Protopopescu, D., additional, Carmignani, J., additional, Dainton, J.B., additional, Jones, R.W.L., additional, Ruggiero, G., additional, Fulton, L., additional, Hutchcroft, D., additional, Maurice, E., additional, Wrona, B., additional, Conovaloff, A., additional, Cooper, P., additional, Coward, D., additional, and Rubin, P., additional
- Published
- 2022
- Full Text
- View/download PDF
39. A search for the K+ → μ−νe+e+ decay
- Author
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E. Cortina Gil, A. Kleimenova, E. Minucci, S. Padolski, P. Petrov, A. Shaikhiev, R. Volpe, T. Numao, Y. Petrov, B. Velghe, V.W.S. Wong, D. Bryman, J. Fu, T. Husek, J. Jerhot, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, L. Peruzzo, M. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Parenti, A. Bizzeti, F. Bucci, A. Antonelli, G. Georgiev, V. Kozhuharov, G. Lanfranchi, S. Martellotti, M. Moulson, T. Spadaro, G. Tinti, F. Ambrosino, T. Capussela, M. Corvino, D. Di Filippo, R. Fiorenza, P. Massarotti, M. Mirra, M. Napolitano, G. Saracino, G. Anzivino, F. Brizioli, E. Imbergamo, R. Lollini, R. Piandani, C. Santoni, M. Barbanera, P. Cenci, B. Checcucci, P. Lubrano, M. Lupi, M. Pepe, M. Piccini, F. Costantini, L. Di Lella, N. Doble, M. Giorgi, S. Giudici, G. Lamanna, E. Lari, E. Pedreschi, M. Sozzi, C. Cerri, R. Fantechi, L. Pontisso, F. Spinella, I. Mannelli, G. D'Agostini, M. Raggi, A. Biagioni, P. Cretaro, O. Frezza, E. Leonardi, A. Lonardo, M. Turisini, P. Valente, P. Vicini, R. Ammendola, V. Bonaiuto, A. Fucci, A. Salamon, F. Sargeni, R. Arcidiacono, B. Bloch-Devaux, M. Boretto, E. Menichetti, E. Migliore, D. Soldi, C. Biino, A. Filippi, F. Marchetto, J. Engelfried, N. Estrada-Tristan, A.M. Bragadireanu, S.A. Ghinescu, O.E. Hutanu, A. Baeva, D. Baigarashev, D. Emelyanov, T. Enik, V. Falaleev, V. Kekelidze, A. Korotkova, L. Litov, D. Madigozhin, M. Misheva, N. Molokanova, S. Movchan, I. Polenkevich, Yu. Potrebenikov, S. Shkarovskiy, A. Zinchenko, S. Fedotov, E. Gushchin, A. Khotyantsev, Y. Kudenko, V. Kurochka, M. Medvedeva, A. Mefodev, S. Kholodenko, V. Kurshetsov, V. Obraztsov, A. Ostankov, V. Semenov, V. Sugonyaev, O. Yushchenko, L. Bician, T. Blazek, V. Cerny, Z. Kucerova, J. Bernhard, A. Ceccucci, H. Danielsson, N. De Simone, F. Duval, B. Döbrich, L. Federici, E. Gamberini, L. Gatignon, R. Guida, F. Hahn, E.B. Holzer, B. Jenninger, M. Koval, P. Laycock, G. Lehmann Miotto, P. Lichard, A. Mapelli, R. Marchevski, K. Massri, M. Noy, V. Palladino, M. Perrin-Terrin, J. Pinzino, V. Ryjov, S. Schuchmann, S. Venditti, T. Bache, M.B. Brunetti, V. Duk, V. Fascianelli, J.R. Fry, F. Gonnella, E. Goudzovski, J. Henshaw, L. Iacobuzio, C. Lazzeroni, N. Lurkin, F. Newson, C. Parkinson, A. Romano, A. Sergi, A. Sturgess, J. Swallow, A. Tomczak, H. Heath, R. Page, S. Trilov, B. Angelucci, D. Britton, C. Graham, D. Protopopescu, J. Carmignani, J.B. Dainton, R.W.L. Jones, G. Ruggiero, L. Fulton, D. Hutchcroft, E. Maurice, B. Wrona, A. Conovaloff, P. Cooper, D. Coward, P. Rubin, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
- Subjects
Lepton flavour violation ,Lepton number violation ,Nuclear and High Energy Physics ,Settore FIS/04 ,Nuclear and High Energy physics ,Kaon decays - Published
- 2023
40. Measurement of the very rare $K^+ \rightarrow \pi^+ \nu \overline{\nu}$ decay at the NA62 experiment at CERN
- Author
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Fiorenza, Renato, Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Briano Olvera, A, Britton, D, Brizioli, F, Brunetti, M B, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, Cretaro, P, D’Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D’Errico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Frezza, O, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, E B, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, R W, Kampf, K, Kekelidze, V, Kerebay, D, Kholodenko, S, Khoriauli, G, Kleimenova, A, Korotkova, A, Khotyantsev, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y G, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmann Miotto, G, Leonardi, E, Lichard, P, Litov, L, Lo Chiatto, P, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, page, R D, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Yu, Protopopescu, D, Raggi, M, Reyes Santos, M, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Turisini, M, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko, A
- Subjects
Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
The NA62 experiment reports the branching ratio measurement $BR(K^+\to\pi^+\nu\bar\nu)$ at 68% CL, based on the observation of 20 signal candidates with an expected background of 7.0 events from the total data sample collected at the CERN SPS during 2016-2018. This provides evidence for the very rare $K^+\to\pi^+\nu\bar\nu$ decay, observed with a significance of $3.4\sigma$. The experiment achieves a single event sensitivity of $(0.839\pm0.054)\times10^{-11}$, corresponding to 10.0 events assuming the Standard Model branching ratio of $(8.4\pm1.0)\times10^{-11}$. The result represents the most accurate measurement achieved so far of this ultra-rare decay. Future prospects and plans for data taking from 2021 will also be presented.
- Published
- 2022
41. Search for heavy neutral lepton production at the NA62 experiment
- Author
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Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Briano Olvera, A, Britton, D, Brizioli, F, Brunetti, Mb, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, D’Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D’Errico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, Eb, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, Rw, Kampf, K, Kekelidze, V, Kerebay, D, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmann Miotto, G, Leonardi, E, Lichard, P, Litov, L, Lo Chiatto, P, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Y, Protopopescu, D, Raggi, M, Reyes Santos, M, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko, A
- Subjects
Nuclear and High Energy Physics ,Settore FIS/04 ,Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
Searches for heavy neutral lepton production in $K^{+} \to e^{+}N$ and $K^{+} \to \mu ^{+}N$ decays using the data set collected by the NA62 experiment at CERN in 2016-18 are presented. Upper limits on the elements of the extended neutrino mixing matrix and are established at the levels of and , respectively, improving on the earlier searches for heavy neutral lepton production and decays in the kinematically accessible mass range. Searches for the $K^{+} \to \mu ^{+}\nu \nu \bar{\nu }$ and $K^{+} \to \mu ^{-}\nu X$ decays, where $X$ is an new light invisible particle, are also reported.
- Published
- 2022
42. Searches for lepton flavour and number violation in K+ and π0 decays at the NA62 experiment
- Author
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Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Brianoolvera, A, Britton, D, Brizioli, F, Brunetti, Mb, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, D’Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D’Errico, M, De Simone, N, Difilippo, D, Dilella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, Eb, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, Rw, Kampf, K, Kekelidze, V, Kerebay, D, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmannmiotto, G, Leonardi, E, Lichard, P, Litov, L, Lochiatto, P, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Y, Protopopescu, D, Raggi, M, Reyessantos, M, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko, A
- Subjects
Settore FIS/04 ,Nuclear Physics - Experiment - Abstract
The NA62 experiment at CERN collected a large sample of charged kaon decays into final states with multiple charged particles in 2017-2018. Results from searches for lepton flavour and number violating decays in $K^+$ and $\pi^0$ to final states containing a lepton pair, based on this data set, are presented, reaching sensitivities of $\mathcal{O}(10^{−11}−10^{−10})$.
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- 2022
43. New measurement of the radiative decay $K e3\gamma$ at the NA62 experiment at CERN
- Author
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Koval, M., Akmete, A., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Bache, T., Baeva, A., Baigarashev, D., Bandiera, L., Barbanera, M., Bernhard, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Bloch-Devaux, B., Boboc, P., Bonaiuto, V., Boretto, M., Bragadireanu, M., Olvera, A. B., Britton, D., Brizioli, F., Brunetti, M. B., Bryman, D., Bucci, F., Capussela, T., Carmignani, J., Ceccucci, A., Cenci, P., Cerny, V., Cerri, C., Checcucci, B., Conovaloff, A., Cooper, P., Gil, E. C., Corvino, M., Costantini, F., Ramusino, A. C., Coward, D., D Agostini, G., Dainton, J., Dalpiaz, P., Danielsson, H., D Errico, M., Simone, N., Di Filippo, D., Di Lella, L., Doble, N., Dobrich, B., Duval, F., Duk, V., Emelyanov, D., Engelfried, J., Enik, T., Estrada-Tristan, N., Falaleev, V., Fantechi, R., Fascianelli, V., Federici, L., Fedotov, S., Filippi, A., Fiorenza, R., Fiorini, M., Fry, J., Fu, J., Fucci, A., Fulton, L., Gamberini, E., Gatignon, L., Georgiev, G., Ghinescu, S., Gianoli, A., Giorgi, M., Giudici, S., Gonnella, F., Gorshanov, K., Goudzovski, E., Graham, C., Guida, R., Gushchin, E., Hahn, F., Heath, H., Henshaw, J., Hives, Z., Holzer, E. B., Husek, T., Hutanu, O., Hutchcroft, D., Iacobuzio, L., Iacopini, E., Imbergamo, E., Jenninger, B., Jerhot, J., Jones, R. W., Kampf, K., Kekelidze, V., Kerebay, D., Kholodenko, S., Khoriauli, G., Khotyantsev, A., Kleimenova, A., Korotkova, A., Kozhuharov, V., Kucerova, Z., Kudenko, Y., Kunze, J., Kurochka, V., Kurshetsov, V., Lanfranchi, G., Lamanna, G., Lari, E., Latino, G., Laycock, P., Lazzeroni, C., Lenti, M., Miotto, G. L., Leonardi, E., Lichard, P., Litov, L., Chiatto, P. L., Lollini, R., Lomidze, D., Lonardo, A., Lubrano, P., Lupi, M., Lurkin, N., Madigozhin, D., Mannelli, I., Mapelli, A., Marchetto, F., Marchevski, R., Martellotti, S., Massarotti, P., Massri, K., Maurice, E., Mazzolari, A., Medvedeva, M., Mefodev, A., Menichetti, E., Migliore, E., Minucci, E., Mirra, M., Misheva, M., Molokanova, N., Moulson, M., Movchan, S., Napolitano, M., Neri, I., Newson, F., Norton, A., Noy, M., Numao, T., Obraztsov, V., Okhotnikov, A., Ostankov, A., Padolski, S., Page, R., Palladino, V., Panichi, I., Parenti, A., Parkinson, C., Pedreschi, E., Pepe, M., Perrin-Terrin, M., Peruzzo, L., Petrov, P., Petrov, Y., Petrucci, F., Piandani, R., Piccini, M., Pinzino, J., Polenkevich, I., Pontisso, L., Potrebenikov, Yu, Protopopescu, D., Raggi, M., Santos, M. R., Romagnoni, M., Romano, A., Rubin, P., Ruggiero, G., Ryjov, V., Sadovsky, A., Salamon, A., Santoni, C., Saracino, G., Sargeni, F., Schuchmann, S., Semenov, V., Sergi, A., Shaikhiev, A., Shkarovskiy, S., Soldani, M., Soldi, D., Sozzi, M., Spadaro, T., Spinella, F., Sturgess, A., Sugonyaev, V., Swallow, J., Sytov, A., Tinti, G., Tomczak, A., Trilov, S., Valente, P., Velghe, B., Venditti, S., Piero Vicini, Volpe, R., Vormstein, M., Wahl, H., Wanke, R., Wong, V., Wrona, B., Yushchenko, O., Zamkovsky, M., and Zinchenko, A.
- Subjects
kaon decays, fixed target experiment ,kaon decays ,Settore FIS/04 ,Nuclear Physics - Experiment ,fixed target experiment - Abstract
The NA62 experiment at CERN reports new results from the study of the radiative kaon decay $K^+ \to \pi^0 e^+ \nu \gamma$ ($Ke3\gamma$), using a data sample recorded in 2017 and 2018. Preliminary results with the most precise measurement of the $Ke3\gamma$ branching ratio, and a T-asymmetry measurement in the $Ke3\gamma$ decay, are presented.
- Published
- 2022
44. NA62 results on Dark Sector searches
- Author
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Jerhot, Jan, Akmete, A, Aliberti, R, Ambrosino, F, Mendola, R Am, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Gioni, A Bia, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Olvera, A Briano, Britton, D, Brizioli, F, Brunetti, M B, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Gil, E Cortina, Corvino, M, Costantini, F, Ramusino, A Cotta, Coward, D, Cretaro, P, D'agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, 'errico, N, Simone, D Di De, Filippo, L, Lella, N Di, Doble, B, Brich, F Do, Duval, V, Duk, D, Emelyanov, J, Engelfried, T, Enik, N, Tristan, V Estrada, Falaleev, R, Fantechi, V, Fascianelli, L, Federici, S, Fedotov, A, Ippi, R Fil, Fiorenza, M, Fiorini, O, Frezza, J, Fry, J, Fu, A, Fucci, L, Fulton, E, Gamberini, L, Gatignon, G, Georgiev, S, Ghinescu, A, Gianoli, M, Giorgi, S, Giudici, F, Gonnella, K, Gorshanov, E, Goudzovski, C, Graham, R, Guida, E, Gushchin, F, Hahn, H, Heath, J, Henshaw, Z, Hives, E B, Holzer, T, Husek, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Ninger, B Jen, Jones, R W, Kampf, K, Kekelidze, V, Kereibay, D, Denko, S Kholo, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Val, M Ko, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Cock, P Lay, Lazzeroni, C, Lenti, M, Miotto, G Lehmann, Leonardi, E, Lichard, P, Litov, L, Chiatto, P Lo, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Zolari, A Maz, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Tano, M Napoli, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Ruzzo, L Pe, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Yu, Protopopescu, D, Raggi, M, Santos, M Reyes, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Turisini, M, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, and Zamkovsky, M
- Subjects
Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
NA62 is a precision physics experiment studying charged kaons and their decayproducts with an unprecedented accuracy (measurement of the K + → π + ννbranching ratio of the order of 10 −11), allowing indirect probes of new physicsscales up to O(100) TeV. NA62 experiment also searches directly for weaklyinteracting particles of up to O(100) MeV masses in kaon decays and up to O(1)GeV masses when running in the beam dump mode. For both modes of directsearches, NA62 has been collecting data since 2021 after a successful 2016-18run 1. Past results and future prospects are presented in this talk.
- Published
- 2022
45. Searches for lepton flavour/number violation in K+ and π0 decays at the NA62 experiment
- Author
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Swallow, J., Akmete, A., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Bache, T., Baeva, A., Baigarashev, D., Bandiera, L., Barbanera, M., Bernhard, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Bloch-Devaux, B., Boboc, P., Bonaiuto, V., Boretto, M., Bragadireanu, M., Briano Olvera, A., Britton, D., Brizioli, F., Brunetti, M. B., Bryman, D., Bucci, F., Capussela, T., Carmignani, J., Ceccucci, A., Cenci, P., Cerny, V., Cerri, C., Checcucci, B., Conovaloff, A., Cooper, P., Cortina Gil, E., Corvino, M., Costantini, F., Cotta Ramusino, A., Coward, D., Cretaro, P., D'Agostini, G., Dainton, J., Dalpiaz, P., Danielsson, H., D'Errico, M., De Simone, N., Di Filippo, D., Di Lella, L., Doble, N., Dobrich, B., Duval, F., Duk, V., Emelyanov, D., Engelfried, J., Enik, T., Estrada-Tristan, N., Falaleev, V., Fantechi, R., Fascianelli, V., Federici, L., Fedotov, S., Filippi, A., Fiorenza, R., Fiorini, M., Frezza, O., Fry, J., Fu, J., Fucci, A., Fulton, L., Gamberini, E., Gatignon, L., Georgiev, G., Ghinescu, S., Gianoli, A., Giorgi, M., Giudici, S., Gonnella, F., Gorshanov, K., Goudzovski, E., Graham, C., Guida, R., Gushchin, E., Hahn, F., Heath, H., Henshaw, J., Hives, Z., Holzer, E. B., Husek, T., Hutanu, O., Hutchcroft, D., Iacobuzio, L., Iacopini, E., Imbergamo, E., Jenninger, B., Jerhot, J., Jones, R. W., Kampf, K., Kekelidze, V., Kereibay, D., Kholodenko, S., Khoriauli, G., Khotyantsev, A., Kleimenova, A., Korotkova, A., Koval, M., Kozhuharov, V., Kucerova, Z., Kudenko, Y., Kunze, J., Kurochka, V., Kurshetsov, V., Lanfranchi, G., Lamanna, G., Lari, E., Latino, G., Laycock, P., Lazzeroni, C., Lenti, M., Lehmann Miotto, G., Leonardi, E., Lichard, P., Litov, L., Lo Chiatto, P., Lollini, R., Lomidze, D., Lonardo, A., Lubrano, P., Lupi, M., Lurkin, N., Madigozhin, D., Mannelli, I., Mapelli, A., Marchetto, F., Marchevski, R., Martellotti, S., Massarotti, P., Massri, K., Maurice, E., Mazzolari, A., Medvedeva, M., Mefodev, A., Menichetti, E., Migliore, E., Minucci, E., Mirra, M., Misheva, M., Molokanova, N., Moulson, M., Movchan, S., Napolitano, M., Neri, I., Newson, F., Norton, A., Noy, M., Numao, T., Obraztsov, V., Okhotnikov, A., Ostankov, A., Padolski, S., Page, R., Palladino, V., Panichi, I., Parenti, A., Parkinson, C., Pedreschi, E., Pepe, M., Perrin-Terrin, M., Peruzzo, L., Petrov, P., Petrov, Y., Petrucci, F., Piandani, R., Piccini, M., Pinzino, J., Polenkevich, I., Pontisso, L., Potrebenikov, Yu., Protopopescu, D., Raggi, M., Reyes Santos, M., Romagnoni, M., Romano, A., Rubin, P., Ruggiero, G., Ryjov, V., Sadovsky, A., Salamon, A., Santoni, C., Saracino, G., Sargeni, F., Schuchmann, S., Semenov, V., Sergi, A., Shaikhiev, A., Shkarovskiy, S., Soldani, M., Soldi, D., Sozzi, M., Spadaro, T., Spinella, F., Sturgess, A., Sugonyaev, V., Sytov, A., Tinti, G., Tomczak, A., Trilov, S., Turisini, M., Valente, P., Velghe, B., Venditti, S., Vicini, P., Volpe, R., Vormstein, M., Wahl, H., Wanke, R., Wong, V., Wrona, B., Yushchenko, O., Zamkovsky, M., and Zinchenko, A.
- Subjects
lepton number violation, lepton flavour violation, kaon decays ,lepton number violation ,kaon decays ,Settore FIS/04 ,lepton flavour violation ,Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
Searches for the lepton number violating $K^{+}\rightarrow\pi^{-}\mu^{+}e^{+}$ decay and lepton flavour violating decays $K^{+}\rightarrow\pi^{+}\mu^{-}e^{+}$ and $\pi^{0}\rightarrow\mu^{-}e^{+}$ are reported, using NA62 data collected in 2017 and 2018. In the absence of a significant excess above the background in each channel, upper limits on the branching ratios are established at $90\%$ confidence level: $\mathcal{B}(K^{+}\rightarrow\pi^{-}\mu^{+}e^{+})
- Published
- 2022
46. Search for lepton number and flavour violation in $K^+$ and $\pi^0$ decays
- Author
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Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Briano Olvera, A, Britton, D, Brizioli, F, Brunetti, Mb, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, Cretaro, P, D’Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D’Errico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Frezza, O, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, Eb, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, Rw, Kampf, K, Kekelidze, V, Kereibay, D, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmann Miotto, G, Leonardi, E, Lichard, P, Litov, L, Lo Chiatto, P, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Y, Protopopescu, D, Raggi, M, Reyes Santos, M, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Turisini, M, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko, A
- Subjects
Lepton number violation ,kaon decays ,Lepton number violation, kaon decays ,Settore FIS/04 ,Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
The NA62 experiment at CERN collected a large sample of charged kaon decays into final states with multiple charged particles in 2016-2018. This sample provides sensitivities to rare decays with branching ratios as low as 10 −11 . Searches for the lepton number violating $K^{+} \to \pi ^{-}\mu ^{+}e^{+}$ decay and the lepton flavour violating $K^{+} \to \pi ^{+}\mu ^{-}e^{+}$ and $\pi ^{0} \to \mu ^{-}e^{+}$ decays are reported. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level. These results improve by one order of magnitude over previous results for these decay modes.
- Published
- 2022
47. Search for K+ decays to a lepton and invisible particles
- Author
-
Volpe, Roberta, Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Olvera, A Briano, Britton, D, Brizioli, F, Brunetti, M B, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, Cretaro, P, D'Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D'Errico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Frezza, O, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, E B, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, R W, Kampf, K, Kekelidze, V, Kereibay, D, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmann Miotto, G, Leonardi, E, Lichard, P, Litov, L, Chiatto, P Lo, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Yu, Protopopescu, D, Raggi, M, Santos, M Reyes, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Turisini, M, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and Zinchenko, A
- Subjects
kaon decays ,Settore FIS/04 ,heavy neutral leptons ,Nuclear Physics - Experiment ,Particle Physics - Experiment ,kaon decays, heavy neutral leptons - Abstract
The NA62 experiment at CERN reports searches for $K^+ \to e^+ N$, $K^+ \to \mu^+ N$ and $K^+ \to \mu^+ X$ decays, where $N$ and $X$ are massive invisible particles, using the 2016-2018 data set. The $N$ particle is assumed to be a heavy neutral lepton, and the results are expressed as upper limits of $O(10^{-9})$ and $O(10^{-8})$ on the neutrino mixing parameter $|U_{e4}|^2$ and $|U_{\mu 4}|^2$, improving on the earlier searches for heavy neutral lepton production and decays in the kinematically accessible mass range. The $X$ particle is considered a scalar or vector hidden sector mediator decaying to an invisible final state, and upper limits of the decay branching fraction for $X$ masses in the range 10-370 MeV/c$^2$ are reported for the first time, ranging from $O(10^{-5})$ to $O(10^{-7})$. An upper limit of $1.0 \cdot 10^{-6}$ is established at 90\% CL on the $K^+\to \mu^+ \nu \nu \bar{\nu}$ branching fraction.
- Published
- 2022
48. Searches for lepton number violating K⁺→π⁻ (π⁰)ℯ⁺ℯ⁺ decays
- Author
-
Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D'Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., D??brich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.
- Published
- 2022
49. Measurement of the very rare $K^+ \to \pi^+ \nu \bar\nu$ decay
- Author
-
Michal Zamkovský, Riccardo Aliberti, F. Ambrosino, Roberto Ammendola, Bruno ANGELUCCI, A. Antonelli, G Anzivino, Roberta Arcidiacono, T. Bache, Aigul Baeva, D. Baigarashev, M. Barbanera, J. Bernhard, A. Biagioni, Lubos Bician, Cristina Biino, Andrea Bizzeti, T. Blazek, Brigitte BlochDevaux, V. Bonaiuto, M. Boretto, M. Bragadireanu, D. Britton, Francesco Brizioli, M.B. Brunetti, D. Bryman, Francesca Bucci, Tiziana Capussela, J. Carmignani, Augusto Ceccucci, P. Cenci, V. Cerny, C. Cerri, B. Checcucci, A. Conovaloff, P. Cooper, Eduardo Cortina Gil, M. Corvino, F. Costantini, Angelo Cotta Ramusino, A. Coward, G. D’Agostini, John Dainton, P. Dalpiaz, Hans Danielsson, N. De Simone, D. Di Filippo, Luigi Di Lella, Niels Doble, Babette Dobrich, F. Duval, V. Duk, D. Emelyanov, Jurgen Engelfried, T. Enik, Nora Estrada-Tristan, Valeri Falaleev, R. Fantechi, V. Fascianelli, Luca Federici, S. Fedotov, Alessandra Filippi, Massimiliano Fiorini, J. Fry, J. Fu, Adolfo Fucci, L. Fulton, Enrico Gamberini, Lau Gatignon, G. Georgiev, S. Ghinescu, Alberto Gianoli, M. Giorgi, Sergio Giudici, Francesco Gonnella, Evgueni Goudzovski, C. Graham, Roberto Guida, Evgeny Gushchin, F. Hahn, H. Heath, J. Henshaw, E.B. Holzer, Tomas Husek, O. Hutanu, D. Hutchcroft, L. Iacobuzio, Enrico Iacopini, Ermanno Imbergamo, B. Jenninger, Jan Jerhot, R.W. Jones, K. Kampf, Vladimir Kekelidze, Sergei Kholodenko, G. Khoriauli, A. Khotyantsev, Alina Kleimenova, A. Korotkova, Michal Koval, Venelin Kozhuharov, Zuzana Kucerova, Y. Kudenko, J. Kunze, V. Kurochka, V. Kurshetsov, Gaia Lanfranchi, Gianluca Lamanna, E. Lari, G. Latino, Paul Laycock, Cristina Lazzeroni, M. Lenti, G. Lehmann Miotto, E. Leonardi, P. Lichard, Leandar Litov, R. Lollini, D. Lomidze, Alessandro Lonardo, Pasquale Lubrano, Matteo Lupi, N. Lurkin, Dmitry Madigozhin, I. Mannelli, Alessandro Mapelli, Flavio Marchetto, Radoslav Marchevski, S. Martellotti, Paolo Massarotti, Karim Massri, E. Maurice, M. Medvedeva, A. Mefodev, E. Menichetti, Ernesto Migliore, E. Minucci, M. Mirra, M. Misheva, Natalia Molokanova, Matthew Moulson, S. Movchan, M. Napolitano, I. Neri, F. Newson, Alan Norton, Matthew Noy, Toshio Numao, Vladimir Obraztsov, A. Ostankov, S. Padolski, R. Page, V. Palladino, A. Parenti, Chris John Parkinson, E. Pedreschi, Monica Pepe, M. Perrin-Terrin, L. Peruzzo, P. Petrov, Y. Petrov, Ferruccio Petrucci, Roberto Piandani, M. Piccini, Jacopo Pinzino, I. Polenkevich, L. Pontisso, Yuri Potrebenikov, D. Protopopescu, Mauro Raggi, Angela Romano, P. Rubin, Giuseppe Ruggiero, Vladimir Ryjov, A. Salamon, C. Santoni, G. Saracino, F. Sargeni, S. Schuchmann, Vitali Semenov, Antonino Sergi, A. Shaikhiev, Sergey Shkarovskiy, D. Soldi, V. Sugonyaev, M. Sozzi, T. Spadaro, F. Spinella, A. Sturgess, Joel Swallow, Stoyan Miroslavov Trilov, Paolo Valente, Bob Velghe, Stefano Venditti, P. Vicini, Roberta Volpe, M. Vormstein, Heinrich Wahl, Rainer Wanke, B. Wrona, O. Yushchenko, and A. Zinchenko
- Subjects
Nuclear Physics - Experiment ,Particle Physics - Experiment - Abstract
The decay $K^+\to\pi^+\nu\bar{\nu}$, with a very precisely predicted branching ratio of less than $10^{-10}$, is among the best processes to reveal indirect effects of new physics. The NA62 experiment at CERN SPS is designed to study the $K^+\to\pi^+\nu\bar{\nu}$ decay and to measure its branching ratio using a decay-in-flight technique. NA62 took data in 2016, 2017 and 2018, reaching the sensitivity of the Standard Model for the $K^+\to\pi^+\nu\bar{\nu}$ decay by the analysis of the 2016 and 2017 data, and providing the most precise measurement of the branching ratio to date by the analysis of the 2018 data. This measurement is also used to set limits on BR($K^+\to\pi^+X$), where $X$ is a scalar or pseudo-scalar particle. The final result of the BR($K^+\to\pi^+\nu\bar{\nu}$) measurement and its interpretation in terms of the $K^+\to\pi^+ X$ decay from the analysis of the full 2016-2018 data set is presented, and future plans and prospects are reviewed.
- Published
- 2022
50. First results for searches of exotic decays with NA62 in beam dump mode
- Author
-
Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T, Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Briano Olvera, A, Britton, D, Brizioli, F, Brunetti, Mb, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, Cretaro, P, D’Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D’Errico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Frezza, O, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, Eb, Husek, T, Hutanu, O, Hutchcroft, D, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J, Jones, Rw, Kampf, K, Kekelidze, V, Kereibay, D, Kholodenko, S, Khoriauli, G, Khotyantsev, A, Kleimenova, A, Korotkova, A, Koval, M, Kozhuharov, V, Kucerova, Z, Kudenko, Y, Kunze, J, Kurochka, V, Kurshetsov, V, Lanfranchi, G, Lamanna, G, Lari, E, Latino, G, Laycock, P, Lazzeroni, C, Lenti, M, Lehmann Miotto, G, Leonardi, E, Lichard, P, Litov, L, Lo Chiatto, P, Lollini, R, Lomidze, D, Lonardo, A, Lubrano, P, Lupi, M, Lurkin, N, Madigozhin, D, Mannelli, I, Mapelli, A, Marchetto, F, Marchevski, R, Martellotti, S, Massarotti, P, Massri, K, Maurice, E, Mazzolari, A, Medvedeva, M, Mefodev, A, Menichetti, E, Migliore, E, Minucci, E, Mirra, M, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Neri, I, Newson, F, Norton, A, Noy, M, Numao, T, Obraztsov, V, Okhotnikov, A, Ostankov, A, Padolski, S, Page, R, Palladino, V, Panichi, I, Parenti, A, Parkinson, C, Pedreschi, E, Pepe, M, Perrin-Terrin, M, Peruzzo, L, Petrov, P, Petrov, Y, Petrucci, F, Piandani, R, Piccini, M, Pinzino, J, Polenkevich, I, Pontisso, L, Potrebenikov, Y, Protopopescu, D, Raggi, M, Reyes Santos, M, Romagnoni, M, Romano, A, Rubin, P, Ruggiero, G, Ryjov, V, Sadovsky, A, Salamon, A, Santoni, C, Saracino, G, Sargeni, F, Schuchmann, S, Semenov, V, Sergi, A, Shaikhiev, A, Shkarovskiy, S, Soldani, M, Soldi, D, Sozzi, M, Spadaro, T, Spinella, F, Sturgess, A, Sugonyaev, V, Swallow, J, Sytov, A, Tinti, G, Tomczak, A, Trilov, S, Turisini, M, Valente, P, Velghe, B, Venditti, S, Vicini, P, Volpe, R, Vormstein, M, Wahl, H, Wanke, R, Wong, V, Wrona, B, Yushchenko, O, Zamkovsky, M, and A. Zinchenko.
- Subjects
History ,Settore FIS/04 ,Computer Science Applications ,Education - Abstract
We report the results of a search for dark photon in-flight decays to μ + μ − pairs at NA62. Dark photons could be produced by dumping protons onto a copper-iron absorber, reach the NA62 decay volume more than 80 m downstream of the dump and decay therein. The measurement is based on data collected in 2021 which correspond to 1.4 × 1017 dumped protons.
- Published
- 2023
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