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687 results on '"Sytov, A."'

102. Erratum to: Electromagnetic dipole moments of charged baryons with bent crystals at the LHC

Author

E. Bagli, L. Bandiera, G. Cavoto, V. Guidi, L. Henry, D. Marangotto, F. Martinez Vidal, A. Mazzolari, A. Merli, N. Neri, J. Ruiz Vidal, A. Sytov, and V. Tikhomirov

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

In this Erratum, an improved simulation of the channeling efficiency of protons and antiprotons as a function of the particle momentum is shown in for different configurations

Published
2020
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104. ENTERAL NUTRITION AFTER ADVADVANCED COMBINED OPERATIVE INTERVENTIONS IN ONCOSURGERY

Author

I. V. NECHAEV, A. V. SYTOV, and S. V. LOMIDZE

Subjects
nutritional support, enteral nutrition, Medicine
Abstract

Enteral nutrition (EN) – the type of therapeutic or supplementary feeding special mixtures, in which the absorption of food (when it arrives in the mouth through a tube in the stomach or intestines) is performed physiologically appropriate way, that is through the mucous membranes of the gastrointestinal tract. This review will address such aspects of enteral nutrition (EN) in patients who are in intensive care unit (ICU), the composition, components, methods of delivery, complications of EP.

Published
2016
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105. Protoplanetary disk shadowing by gas infalling onto the young star AK Sco.

Author

Gómez de Castro, Ana Inés, Loyd, Robert O. P., France, Kevin, Sytov, Alexey, Bisikalo, Dmitry, Gómez de Castro, Ana Inés, Loyd, Robert O. P., France, Kevin, Sytov, Alexey, and Bisikalo, Dmitry

Abstract

Young solar-type stars grow through the accretion of material from the circumstellar disk during pre-main-sequence (PMS) evolution. The ultraviolet radiation generated in this process plays a key role in the chemistry and evolution of young planetary disks. In particular, the hydrogen Ly alpha line (Ly alpha) etches the disk surface by driving photoevaporative flows that control disk evolution. Using the Hubble Space Telescope, we have monitored the PMS binary star AK. Sco during the periastron passage and have detected a drop of the H-2 flux by up to 10% lasting 5.9 hr. We show that the decrease of the H-2 flux can be produced by the occultation of the stellar Ly alpha photons by a gas stream in free fall from 3. R*. Given the high optical depth of the Ly alpha line, a very low gas column of N-H 5 10 > 10(17) cm(-2) suffices to block the Ly alpha radiation without producing noticeable effects in the rest of the stellar spectral tracers., Ministerio de Economía y Competitividad (MINECO), HST Guest Observer program, Russian Science Foundation, Unidad Deptal. de Astronomía y Geodesia, Fac. de Ciencias Matemáticas, TRUE, pub

Published
2023

106. A study of the $K^+ \to \pi^0 e^+ \nu \gamma$ decay

Author

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

107. Geant4 simulation model of electromagnetic processes in oriented crystals for the accelerator physics

Author

Sytov, Alexei, Bandiera, Laura, Cho, Kihyeon, Hwang, Soonwook, Cirrone, Giuseppe Antonio Pablo, Pandola, Luciano, Guatelli, Susanna, Rosenfeld, Anatoly, Haurylavets, Viktar, Tikhomirov, Victor, and Ivanchenko, Vladimir

Subjects
Accelerator Physics (physics.acc-ph), Physics - Instrumentation and Detectors, Other Fields of Physics, FOS: Physical sciences, hep-ph, Instrumentation and Detectors (physics.ins-det), Computational Physics (physics.comp-ph), Accelerators and Storage Rings, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), physics.comp-ph, Physics - Accelerator Physics, Detectors and Experimental Techniques, Physics - Computational Physics, physics.ins-det, Particle Physics - Phenomenology, physics.acc-ph
Abstract

Electromagnetic processes of charged particles interaction with oriented crystals provide a wide variety of innovative applications such as beam steering, crystal-based extraction/collimation of leptons and hadrons in an accelerator, a fixed-target experiment on magnetic and electric dipole moment measurement, X-ray and gamma radiation source for radiotherapy and nuclear physics and a positron source for lepton and muon colliders, a compact crystalline calorimeter as well as plasma acceleration in the crystal media. One of the main challenges is to develop an up-to-date, universal and fast simulation tool to simulate these applications. We present a new simulation model of electromagnetic processes in oriented crystals implemented into Geant4, which is a toolkit for the simulation of the passage of particles through matter. We validate the model with the experimental data as well as discuss the advantages and perspectives of this model for the applications of oriented crystals mentioned above., 18 pages, 9 figures

Published
2023

108. Silicon crystals for steering high-intensity particle beams at ultrahigh-energy accelerators

Author

A. Mazzolari, M. Romagnoni, E. Bagli, L. Bandiera, S. Baricordi, R. Camattari, D. Casotti, M. Tamisari, A. Sytov, V. Guidi, G. Cavoto, S. M. Carturan, D. De Salvador, A. Balbo, G. Cruciani, Thu Nhi Tran Caliste, R. Verbeni, N. Pastrone, L. Lanzoni, A. Rossall, J. A. van den Berg, R. Jenkins, and P. Dumas

Subjects
Physics, QC1-999
Abstract

Experimental results and simulation models show that crystals might play a relevant role for the development of new generations of high-energy and high-intensity particle accelerators and might disclose innovative possibilities at existing ones. In this paper we describe the most advanced manufacturing techniques of crystals suitable for operations at ultrahigh energy and ultrahigh intensity particle accelerators, reporting as an example of potential application the collimation of the particle beams circulating in the Large Hadron Collider at CERN, which will be upgraded through the addition of bent crystals in the frame of the High Luminosity Large Hadron Collider project.

Published
2021
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109. Leveraging the Internet of Things for Energy Applications

Author

Kasatikov Nikolay, Brekhov Oleg, Sytov Alexander, and Milovanova Ekaterina

Subjects
Environmental sciences, GE1-350
Abstract

The history of the development of such a thing as the Internet of things in our country, as well as in the world, is gaining momentum. The communication of all devices that maintain communication and transmit data online are used constantly and around the clock. In order to accumulate data and combine it for the benefit of local residents, as well as advertising companies, in order to understand their needs and solve with the help of unobtrusive offers, all data obtained from gadgets and devices connected to the Internet are used.

Published
2021
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111. Структура водных масс в регионе архипелага Аргентинские острова

Author

I. P. Neverovsky, Y. I. Popov, V. N Sytov, and A. S. Matygin

Subjects
water masses, thermohaline structure, monitoring, antarctic peninsula, Meteorology. Climatology, QC851-999, Geophysics. Cosmic physics, QC801-809
Abstract

Структура водных масс региона архипелага Аргентинские острова была исследована по данным мас­штабной океанографической съемки, выполненной специалистами 17 Украинской антарктической экспедиции. Впервые произведена съемка межостровной зоны архипелага, состоявшей из 60 станций и трех ортогональных разрезов (по 10-12 станций) в глубоководном проливе Пенола, отделяющем архипелаг от материка. В межо­стровной зоне наблюдалась двухслойная вертикальная структура вод с распресненным и теплым поверхност­ным слоем и соленым и холодным придонным. В северной и южной частях островной акватории термоклин располагался на горизонтах 20-30 м., в более мелководной центральной, где существовали благоприятные ус­ловия для весенне-летнего прогрева, — на глубине 30-40 м. На основании анализа вида Т, S-кривых сделан вы­вод, что для мониторинга пространственно-временной структуры термохалинного поля межостровной аквато­рии достаточно проводить наблюдения в одной точке. Выводные ледники Антарктического полуострова, гене­рирующие летом большие объемы талых вод, создают условия для формирования трехслойной структуры вод. Холодный промежуточный слой разделяет относительно теплые и более соленые глубинные воды от прогретых и распресненных в летних условиях поверхностных вод. Анализ Т, S-диаграмм вод различных районов запад­ного шельфа Антарктического полуострова позволил сделать вывод о наличии переноса промежуточных и глубинных вод с юга.

Published
2016
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112. Первое наблюдение холодного промежуточного слоя на шельфе Антарктического полуострова

Author

I.P. Neverovsky, Y. I. Popov, V.N. Sytov, and A. S. Matygin

Subjects
antarctic peninsula, water masses, shelf zone, the cold intermediate layer, Meteorology. Climatology, QC851-999, Geophysics. Cosmic physics, QC801-809
Abstract

Впервые по данным подробной океанографической съемки, проведенной в период 17-й Украинской антарктической экспедиции (2012-2013), исследована структура водных масс региона архипелага Аргентинские острова. В проливе Пенала наблюдалось летнее формирование трехслойной структуры вод, впервые обнаружен промежуточный холодный слой отрицательных температур . Этот слой разделяет отно­сительно теплые и значительно более соленые глубинные воды от прогретых в летних условиях и распрес­ненных поверхностных вод. Более высокая соленость глубинных вод не позволяет водам холодного про­межуточного слоя опускаться на большие глубины , поэтому они распространяются в подповерхностных горизонтах. Летний антарктический холодный промежуточный слой (АХПС) определяется как слой отрицательных температур, в ядре которого температура ниже -0,35 °С. АХПС в проливе Пенала располагался в слое сезонного скачка плотности на глубинах 25-80 метров. Источниками генерации вод АХТТС непо­средственно в районах западного шельфа Антарктического полуострова являются многочисленные выво­дные ледники. Анализ объемно-статистических Т, S-диаграмм показал существование переноса на аквато­рию Аргентинских островов промежуточно-глубинных вод из района залива Маргарет, расположенного к югу от архипелага

Published
2016
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113. Perioperative nutritional support. Clinical practice recommendations of the national 'Federation of Anesthesiologists and Reanimatologists'

Author

Ilya N. Leiderman, A. I. Gritsan, I. B. Zabolotskikh, V. A. Mazurok, I. V. Polyakov, A. L. Potapov, A. V. Sytov, and A. I. Yaroshetskiy

Subjects
Anesthesiology and Pain Medicine, Emergency Medicine, Critical Care and Intensive Care Medicine, Law
Abstract

Numerous publications show that, depending on the type of pathology, protein-energy malnutrition develops in 20– 50 % of surgical patients directly in the hospital in the early postoperative period. Rather a great number of patients with surgical diseases are already hospitalized with varying degrees of malnutrition. From 30 % to 69 % of patients are admitted to the hospital with I–III grade of protein-energy malnutrition and require mandatory nutritional support. Risk factors for protein-energy malnutrition development are determined in 60–70 % of hospitalized patients. This clinical practice recommendations present the basic principles of nutritional support in the perioperative period.

Published
2022

115. Beam test characterization of oriented crystals in strong field conditions

Author

Monti-Guarnieri, Pietro, primary, Bandiera, Laura, additional, Bomben, Luca, additional, Carsi, Stefano, additional, De Salvador, Davide, additional, Diociaiuti, Eleonora, additional, Guidi, Vincenzo, additional, Haurylavets, Viktar, additional, Korjik, Mikhail, additional, Lobko, Alexander, additional, Martellotti, Silvia, additional, Mascagna, Valerio, additional, Mazzolari, Andrea, additional, Moulson, Matthew, additional, Paesani, Daniele, additional, Pastrone, Nadia, additional, Prest, Michela, additional, Romagnoni, Marco, additional, Ronchetti, Federico, additional, Sarra, Ivano, additional, Selmi, Alessia, additional, Sgarbossa, Francesco, additional, Soldani, Mattia, additional, Sytov, Alexei, additional, Tikhomirov, Viktor, additional, and Vallazza, Erik, additional

Published
2022
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116. A high-performance custom photodetection system to probe the light yield enhancement in oriented crystals

Author

Soldani, M, primary, Bandiera, L, additional, Bomben, L, additional, Brizzolari, C, additional, Camattari, R, additional, Salvador, D De, additional, Guidi, V, additional, Haurylavets, V, additional, Lutsenko, E, additional, Maiolino, T, additional, Mascagna, V, additional, Mazzolari, A, additional, Prest, M, additional, Romagnoni, M, additional, Ronchetti, F, additional, Selmi, A, additional, Sytov, A, additional, Tikhomirov, V, additional, and Vallazza, E, additional

Published
2022
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117. Improved calorimetric particle identification in NA62 using machine learning techniques

Author

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
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118. Experimental layout for the direct measurement of electromagnetic shower acceleration in an oriented crystal scintillator

Author

Alessia Selmi, Mattia Soldani, Laura Bandiera, Luca Bomben, Stefano Carsi, Davide De Salvador, Vincenzo Guidi, Viktar Haurylavets, Mikhail Korjik, Alexander Lobko, Valerio Mascagna, Andrea Mazzolari, Pietro Monti Guarnieri, Matthew Moulson, Michela Prest, Marco Romagnoni, Federico Ronchetti, Francesco Sgarbossa, Alexei Sytov, Victor Tikhomirov, Erik Vallazza, and Giulia Zonta

Subjects
Nuclear and High Energy Physics, Instrumentation
Published
2023

120. HIKE, High Intensity Kaon Experiments at the CERN SPS: Letter of Intent

Author

Cortina Gil, E., Jerhot, J., Lurkin, N., Numao, T., Velghe, B., Wong, V.W.S., Bryman, D., Bician, L., Hives, Z., Husek, T., Kampf, K., Koval, M., Akmete, A.T., Aliberti, R., Büscher, V., Di Lella, L., Doble, N., Peruzzo, L., Schott, M., Wahl, H., Wanke, R., Döbrich, B., Montalto, L., Rinaldi, D., Dettori, F., Cardini, A., Lai, A., Bomben, L., Carsi, S., Prest, M., Selmi, A., Lezzani, G., Monti-Guarnieri, P., Perna, L., Dalpiaz, P., Guidi, V., Mazzolari, A., Neri, I., Petrucci, F., Soldani, M., Bandiera, L., Cotta Ramusino, A., Gianoli, A., Romagnoni, M., Sytov, A., Lenti, M., Panichi, I., Ruggiero, G., Bizzeti, A., Bucci, F., Antonelli, A., Di Meco, E., Lanfranchi, G., Martellotti, S., Martini, M., Moulson, M., Paesani, D., Sarra, I., Spadaro, T., Tinti, G., Vallazza, E., Ambrosino, F., Giordano, R., Massarotti, P., Napolitano, M., Saracino, G., Di Donato, C., D'Ambrosio, G., D'Errico, M., Mirra, M., Neshatpour, S., Fiorenza, R., Rosa, I., De Salvador, D., Sgarbossa, F., Anzivino, G., Germani, S., Volpe, R., Cenci, P., Cutini, S., Duk, V., Lubrano, P., Pepe, M., Piccini, M., Costantini, F., Donati, S., Giorgi, M., Giudici, S., Lamanna, G., Pedreschi, E., Pinzino, J., Sozzi, M., Fantechi, R., Giusti, V., Spinella, F., Mannelli, I., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Lo Cicero, F., Lonardo, A., Turisini, M., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Menichetti, E., Migliore, E., Biino, C., Marchetto, F., Baigarashev, D., Kambar, Y., Kereibay, D., Mukhamejanov, Y., Sakhiyev, S., Olvera, A. Briano, Engelfried, J., Estrada-Tristan, N., Piandani, R., Santos, M.A. Reyes, Rivera, K.A. Rodriguez, Boboc, P.C., Bragadireanu, A.M., Ghinescu, S.A., Hutanu, O.E., Blazek, T., Cerny, V., Kleimenova, A., Kucerova, Z., Martinez Santos, D., Prouve, C., Boretto, M., Brizioli, F., Ceccucci, A., Corvino, M., Danielsson, H., Duval, F., Gamberini, E., Guida, R., Holzer, E.B., Jenninger, B., Lehmann Miotto, G., Lichard, P., Massri, K., Minucci, E., Perrin-Terrin, M., Ryjov, V., Swallow, J., Van Dijk, M., Zamkovsky, M., Marchevski, R., Gerbershagen, A., Fry, J.R., Gonnella, F., Goudzovski, E., Henshaw, J., Kenworthy, C., Lazzeroni, C., Parkinson, C., Romano, A., Sanders, J., Shaikhiev, A., Tomczak, A., Heath, H., Britton, D., Norton, A., Protopopescu, D., Dainton, J.B., Jones, R.W.L., De Santo, A., Salvatore, F., Cooper, P., Coward, D., and Rubin, P.

Subjects
Detectors and Experimental Techniques, Particle Physics - Experiment
Abstract

A timely and long-term programme of kaon decay measurements at a new level of precision is presented, leveraging the capabilities of the CERN Super Proton Synchrotron (SPS). The proposed programme is firmly anchored on the experience built up studying kaon decays at the SPS over the past four decades, and includes rare processes, CP violation, dark sectors, symmetry tests and other tests of the Standard Model. The experimental programme is based on a staged approach involving experiments with charged and neutral kaon beams, as well as operation in beam-dump mode. The various phases will rely on a common infrastructure and set of detectors.

Published
2022

121. Nowotny Chimney Ladder Phases with Group 5 Metals: Crystal and Electronic Structure and Relations to the CrSi2 Structure Type

Author

Maxim S. Likhanov, Nikita V. Sytov, Zheng Wei, Evgeny V. Dikarev, and Andrei V. Shevelkov

Subjects
Nowotny chimney-ladder phases, intermetallic compounds, crystal structure, electronic structure, Crystallography, QD901-999
Abstract

Nowotny chimney ladder (NCL) phases are intermetallic compounds formed by transition metals and metals of groups 13 and 14. This family can be expanded by combining two p-elements from different groups with those transition metals, for which the corresponding binary NCL phases are unknown. In this paper, we present three new compounds in the V-Al-Ge, Nb-Al-Ge, and Nb-Ga-Ge systems related to the TiSi2 structure type (Sp. Gr. Fddd) obtained with the standard ampule technique. The crystal structures of the new compounds were determined using synchrotron powder X-ray diffraction data. A transition to the CrSi2 structure type was detected upon changing the composition from VAl0.72(2)Ge1.28(2) to VAl1.534(3)Ge0.466(3). According to the 18–n rule, all the compounds are metallic conductors, which was supported by the electronic structure calculations. It was shown that the expected energy gap located above the Fermi level in the vanadium-based NCL compound collapsed into a pseudogap upon the replacement of V by Nb.

Published
2020
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122. Economic efficiency of a robotic complex for stacking dairy products

Author

Ye. V. Sytov, S. A. Vorotnikov, and M. S. Shmatova

Subjects
Economic efficiency, Palletizer, Payback period, Economic indicator, Computer science, Production (economics), Profitability index, General Medicine, Unit cost, Productivity, Manufacturing engineering
Abstract

The article deals with estimating economic efficiency of a robotic complex (RC) at the EFKO group plant which stacks ready dairy products on trays and in bottles from 6 production lines onto pallets using a palletizer robot and conveyor equipment for products and pallets. The authors demonstrate an RC scheme with the description of its components. They have collected and analyzed the information on the current productivity, weight and size characteristics and location of production lines of a robotic complex for stacking dairy products. The article presents the principle for calculating the required productivity and lifting capacity of the palletizer robot. The authors demonstrate a preproduction model mounted at the EFKO group plant. The complex makes it possible to reduce the labor intensity, improve the quality of stacking, decrease the number of human errors. Its implementation and exploitation will reduce the number of employees. The article presents calculations of economic effect on the stage of planning and after the project’s realization. To this end the authors use traditional methods of investment and qualitative analysis. They determine basic economic indicators such as the amount of capital investments and the terms of the RC implementation, change in the number of staff, maintenance costs, reduction of the “working” area of the warehouse due to the placement of the equipment. The article contains the basic landmarks for determining the standard payback period. According to the data received the authors additionally calculated the indicators of economic efficiency: profitability ratio of capital investment into automation, percentage reduction in unit cost, labor productivity growth. The authors monitored the RC performance efficiency after its implementation at a real production plant of the EFKO group. In conclusion they compare the results of the monitoring with the calculations of the economic effect made at the planning stage. The results adduced can be useful for those who develop automation equipment for packing and storing, and to those who are interested in productivity and quality improvement.

Published
2021

124. High level performance of the NA62 RICH detector

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 Zinchenko, A

Subjects
Nuclear and High Energy Physics, Settore FIS/04, Instrumentation
Published
2022

126. The GALORE project

Author

Marco Romagnoni, Laura Bandiera, Chiara Carraro, Davide De Salvador, Vincenzo Guidi, Andrea Mazzolari, Luigi Scatizza, Francesco Sgarbossa, Mattia Soldani, Alexei Sytov, and Melissa Tamisari

Subjects
Atomic and Molecular Physics, and Optics
Abstract

Abstract Bent crystals are a compact and versatile tool to manipulate ultra-relativistic particle beams in accelerators. Indeed, the unrivaled steering power achievable exploiting channeling of particles between the atomic planes is comparable to that of a $$10^{2-3}$$ 10 2 - 3 Tesla magnetic dipole. Since the first experiments in the 1980s, extensive research has been delivering important results for new physics experiments and applications in accelerators. The substantial technological development, accompanied by reliable Monte Carlo simulations, has increased the steering efficiency from a few % to the intrinsic maximum efficiency of $$\sim 80\%$$ ∼ 80 % , limited by scattering of the particles with nuclei inside the crystal. The recently started two-year (2022–2023) project GALORE of INFN aims to assess experimentally the possibility to overcome this hard limit by developing a new generation of bent crystals, featuring an innovative geometry characterized by a crystalline microstructure which influences particle dynamic in the crystal lattice to boost efficiency close to 100%. The manufacturing process will exploit well-established techniques developed for silicon microelectronics, and experimental testing will be carried out at the extracted beamlines of CERN North Area with high-energy hadron beams. The success of this project could strongly impact the employment of bent crystal in frontier energy accelerators, boosting performance of already proposed schemes as well as enabling completely inedited use of bent crystal in particle physics experiment in accelerators. Graphic Abstract

Published
2022

130. Crystal-based pair production for a lepton collider positron source

Author

Bandiera, L., primary, Bomben, L., additional, Camattari, R., additional, Cavoto, G., additional, Chaikovska, I., additional, Chehab, R., additional, De Salvador, D., additional, Guidi, V., additional, Haurylavets, V., additional, Lutsenko, E., additional, Mascagna, V., additional, Mazzolari, A., additional, Prest, M., additional, Romagnoni, M., additional, Ronchetti, F., additional, Sgarbossa, F., additional, Soldani, M., additional, Sytov, A., additional, Tamisari, M., additional, Tikhomirov, V., additional, and Vallazza, E., additional

Published
2022
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131. Оxidative stress and endogenous intoxication in cancer patients

Author

Marina Mikhailovna Dobrovolskaya, A V Sytov, Valentina Nikolaevna Blindar, and G N Zubrikhina

Subjects
medicine.medical_specialty, Anemia, 030204 cardiovascular system & hematology, medicine.disease_cause, Superoxide dismutase, Lipid peroxidation, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Blood serum, Malondialdehyde, Neoplasms, Internal medicine, Humans, Medicine, biology, Superoxide Dismutase, business.industry, Biochemistry (medical), Cancer, General Medicine, Iron deficiency, medicine.disease, Oxidative Stress, Medical Laboratory Technology, Endocrinology, 030228 respiratory system, chemistry, biology.protein, Lipid Peroxidation, business, Oxidative stress
Abstract

In the blood serum of 93 patients with various localities of the malignant process, the content of nitric oxide (NO), indicators of lipid peroxidation (POL): superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione in red blood cells were determined. 9 patients with ovarian cancer were examined during chemotherapy (6 courses), 40 patients with colon cancer, previously operated, were with malignant liver damage. In 39 patients with anemia, NO indicators were compared with the level of interleukin 6 (IL-6) and hepcidin-25 (GP-25). As a control, 60 practically healthy individuals were examined. It was shown that the NO content was significantly reduced in 69.7% of patients, regardless of the location of the primary tumor. There was a gradual increase in the NO content before each course of chemotherapy. A high concentration of NO (more than 22 µM) was detected in 22 patients with functional iron deficiency (FJ) against the background of anemia of chronic diseases (AHZ), which was accompanied by hyperexpression of IL-6 (27.0±10.5 pg/ml) and GP-25 (25.2±7.1 ng/ml). In contrast, the lowest NO values (less than 22 µM) were observed in 17 patients with IDA. There is no doubt that there is a certain relationship between the development of oxidative stress with the accumulation of highly toxic lipoperoxidation products that affect the overall homeostasis of the body, and the development of anemic syndrome.

Published
2021

132. New measurement of radiative decays at the NA62 Experiment at CERN: $K_{e3\gamma}$

Author

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

138. Enhancement of Bremsstrahlung Radiation Generated by Electron Beam Interaction in an Axially-Oriented Scintillator Crystal (Poster)

Author

Riccardo Camattari, Laura Bandiera, Marco Romagnoni, Alexei Sytov, Davide De Salvador, Viktar Haurylavets, Enrico Bagli, Andrea Mazzolari, Vincenzo Guidi, and Werner Lauth

Subjects
n/a, General Works
Abstract

Since their discovery, scintillator materials have played an important role in nuclear and particle physics, as well as in medical and industrial imaging. [...]

Published
2019
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139. Radioisotope Production through Accelerators in Crystalline Targets

Author

Giacomo Germogli, Davide De Salvador, Luca Bacci, Enrico Bagli, Laura Bandiera, Riccardo Camattari, Sara Maria Carturan, Davide Casotti, Federico Evangelisti, Giacomo Guidi, Vincenzo Guidi, Gianluigi Maggioni, Tais Maiolino, Andrea Mazzolari, Roberto Menegazzo, Daniel Ricardo Napoli, Walter Raniero, Marco Romagnoni, Carlo Scian, Alexei Sytov, Jose’ Javier Valiente Dobón, and Donato Vincenzi

Subjects
n/a, General Works
Abstract

The production techniques of radioisotopes for medical purposes is a valuable and important field in nuclear medicine. In particular, the expensive cost of the prime materials for the production via cyclotron obliges the search for new solutions to enhance the production rate with minor upgrades of the current instrumentation. Oriented ordered structure can modify particle trajectories inside a medium leading to a sensible variation of the interaction rate with atomic nuclei. Under specific orientations of the target with respect to the incident beam, the probability of inelastic interaction with nuclei can be enhanced with respect to the standard rate. This effect is called anti-channeling and leads to an increase of the radioisotope production yield. A dedicated set of experimental measurements were carried out at the CN accelerator of the INFN Legnaro Laboratories to investigate nuclear reactions under channeling experiments. In particular, the production of the Arsenic-74 radioisotope through a proton beam delivered to a natural single-crystal Germanium target was monitored via γ-spectroscopy of the prompt γ-rays upon de-excitation of produced nuclei, in order to quantify the production rate variation as a function of the incident angle.

Published
2019
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140. Incoherent Scattering Reduction in Crystals

Author

Victor V. Tikhomirov, Laura Bandiera, Vincenzo Guidi, Andrea Mazzolari, and Alexei Sytov

Subjects
n/a, General Works
Abstract

Despite the large strength of the coherent effects of particle deflection and radiation in crystals,all their applications are essentially limited by the incoherent scattering process. [...]

Published
2019
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141. Simulation code for modeling of coherent effects of radiation generation in oriented crystals

Author

A. I. Sytov, V. V. Tikhomirov, and L. Bandiera

Subjects
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

We present the crystalrad simulation code, combining all the features of the crystal simulation code for simulations of charged particles trajectories in a bent crystal and the radcharm++ code for calculation of the radiation spectrum. The crystalrad code is based on Monte Carlo simulations of trajectories in the planar and axial electric field either in a straight, bent, or periodically bent crystal taking into account multiple and single Coulomb scattering on nuclei and electrons, nuclear scattering and ionization energy losses. The trajectories simulated are used for calculation of radiation spectra by the Baier-Katkov method. We compare our simulations with experimental data taken at MAMI (MAinzer MIkrotron) as well as give an example for a possible future study with sub-GeV electrons interacting with Si bent crystals.

Published
2019
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142. Clinical Recommendations of the Northwest Society for Enteral and Parenteral Nutrition, Interregional Association for Emergency Surgery, Russian Gastroenterological Association, Union of Rehabilitation Therapists of Russia and Russian Transplantation Society on Diagnosis and Treatment of Short Bowel Syndrome-Associated Intestinal Failure in Adults

Author

Averyanova, Yu. V., primary, Batyrshin, E. M., additional, Demko, A. E., additional, Ivanova, G. E., additional, Ivashkin, V. T., additional, Kostyuchenko, L. N., additional, Lapitsky, A. V., additional, Leiderman, I. N., additional, Luft, V. M., additional, Maev, I. V., additional, Nikitin, I. G., additional, Novruzbekov, M. S., additional, Poluektova, Е. A., additional, Potapov, A. L., additional, Sytov, A. V., additional, and Trukhmanov, A. S., additional

Published
2022
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145. Verification of Photometric Parallaxes with Gaia DR2 Data

Author

Oleg Malkov, Sergey Karpov, Dana Kovaleva, Sergey Sichevsky, Dmitry Chulkov, Olga Dluzhnevskaya, Alexey Kniazev, Areg Mickaelian, Alexey Mironov, Jayant Murthy, Alexey Sytov, Gang Zhao, and Aleksandr Zhukov

Subjects
parallax, photometry, interstellar extinction, surveys, Gaia, Astronomy, QB1-991
Abstract

Results of comparison of Gaia DR2 parallaxes with data derived from a combined analysis of 2MASS (Two Micron All-Sky Survey), SDSS (Sloan Digital Sky Survey), GALEX (Galaxy Evolution Explorer), and UKIDSS (UKIRT Infrared Deep Sky Survey) surveys in four selected high-latitude | b | > 48° sky areas are presented. It is shown that multicolor photometric data from large modern surveys can be used for parameterization of stars closer than 4400 pc and brighter than g S D S S = 19 . m 6 , including estimation of parallax and interstellar extinction value. However, the stellar luminosity class should be properly determined.

Published
2018
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146. 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

147. Surgical treatment of a patient with hemangioma of the pulmonary artery trunk

Author

Ivan Stilidi, O.P. Bliznyukov, A.K. Chekini, P.V. Kononets, Gerasimov Ss, R.A. Mkrtumyan, A.V. Sytov, A.R. Shin, and E.R. Charchyan

Subjects
Hemangioma, medicine.medical_specialty, business.industry, medicine.artery, Pulmonary artery, medicine, Surgery, medicine.disease, business, Surgical treatment, Trunk
Published
2021

149. Morphology of gas flow during collision of accretion disks in a T Tauri type binary with elliptic orbit

Author

A. Yu. Sytov

Subjects
Physics, T Tauri star, Elliptic orbit, Morphology (linguistics), Flow (mathematics), Binary star, Binary number, Astrophysics, Type (model theory), Collision
Abstract

Представлены результаты численного моделирования взаимодействия аккреционных дисков при прохождении периастра в двойной звезде типа Т Тельца с эллиптичной орбитой. Рассмотрена структура системы ударных волн в аккреционных дисках и между ними и ее изменение с течением времени. Обсуждается возможность построения аналитической модели взаимодействия аккреционных дисков. We present the results of numerical simulation of interacting accretion disks in a T Tauri type binary with elliptic orbit. Using these results we study structure and evolution of the system of shock waves in accretion disks and between them. Finally we discuss the possibility of bringing up an analytical model for accretion disk interaction.

Published
2020

150. Photometric data analysis: the estimation of interstellar extinction

Author

Nikolay A. Skvortsov, A. Yu. Sytov, A. I. Zakharov, Sergey Sichevsky, O. Yu. Malkov, Dana Kovaleva, A. V. Mironov, Sergey A. Stupnikov, O. B. Dluzhnevskaya, and A. O. Zhukov

Subjects
Physics, Astrophysics
Abstract

Учет межзвездного поглощения - необходимый этап в процессе параметризации звезд по многоцветной фотометрии. Мы анализируем опубликованные законы межзвездного поглощения и обсуждаем возможность оценки величины межзвездного поглощения для фотометрических полос современных больших обзоров. Taking into account interstellar extinction is the necessary procedure in the process of parameterization of stars from multicolor photometry. We analyze published interstellar extinction laws and discuss the possibility of assessing the interstellar extinction in photometric bands of modern large surveys.

Published
2020

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