A study of the $K^+ \to \pi^0 e^+ \nu \gamma$ decay
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 existi...
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| Veröffentlicht in: | The journal of high energy physics 2023-04, Vol.9 |
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| container_title | The journal of high energy physics |
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| creator | 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 |
| description | 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. |
| doi_str_mv | 10.1007/JHEP09(2023)040 |
| format | Article |
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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</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c701-eab88ab010c8553c2b92bbaaa2e4a8f35042cda823efb82b22afb4e043d02e0f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>High Energy Physics - Experiment</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cortina Gil, Eduardo</creatorcontrib><creatorcontrib>Minucci, Elisa</creatorcontrib><creatorcontrib>Padolski, Sergey</creatorcontrib><creatorcontrib>Petrov, Plamen</creatorcontrib><creatorcontrib>Velghe, Bob</creatorcontrib><creatorcontrib>Bryman, 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Enrico</creatorcontrib><creatorcontrib>Gianoli, Alberto</creatorcontrib><creatorcontrib>Neri, Ilaria</creatorcontrib><creatorcontrib>Norton, Alan</creatorcontrib><creatorcontrib>Petrucci, Ferruccio</creatorcontrib><creatorcontrib>Wahl, Heinrich</creatorcontrib><creatorcontrib>Bizzeti, Andrea</creatorcontrib><creatorcontrib>Bucci, Francesca</creatorcontrib><creatorcontrib>Iacopini, Enrico</creatorcontrib><creatorcontrib>Latino, Giuseppe</creatorcontrib><creatorcontrib>Lenti, Massimo</creatorcontrib><creatorcontrib>Parenti, Andrea</creatorcontrib><creatorcontrib>Volpe, Roberta</creatorcontrib><creatorcontrib>Antonelli, Antonella</creatorcontrib><creatorcontrib>Gonnella, Francesco</creatorcontrib><creatorcontrib>Lamanna, Gianluca</creatorcontrib><creatorcontrib>Lanfranchi, Gaia</creatorcontrib><creatorcontrib>Tinti, Gemma</creatorcontrib><creatorcontrib>Martellotti, Silvia</creatorcontrib><creatorcontrib>Moulson, Matthew</creatorcontrib><creatorcontrib>Kozhuharov, Venelin</creatorcontrib><creatorcontrib>Litov, Leandar</creatorcontrib><creatorcontrib>Georgiev, Georgi</creatorcontrib><creatorcontrib>Raggi, Mauro</creatorcontrib><creatorcontrib>Spadaro, Tommaso</creatorcontrib><creatorcontrib>Ambrosino, Fabio</creatorcontrib><creatorcontrib>Fiorenza, Renato</creatorcontrib><creatorcontrib>Capussela, Tiziana</creatorcontrib><creatorcontrib>Corvino, Michele</creatorcontrib><creatorcontrib>Di Filippo, Domenico</creatorcontrib><creatorcontrib>Massarotti, Paolo</creatorcontrib><creatorcontrib>Mirra, Marco</creatorcontrib><creatorcontrib>Napolitano, Marco</creatorcontrib><creatorcontrib>Saracino, Giulio</creatorcontrib><creatorcontrib>Anzivino, Giuseppina</creatorcontrib><creatorcontrib>Imbergamo, Ermanno</creatorcontrib><creatorcontrib>Lollini, Riccardo</creatorcontrib><creatorcontrib>Santoni, Cristiano</creatorcontrib><creatorcontrib>Brizioli, Francesco</creatorcontrib><creatorcontrib>Barbanera, Mattia</creatorcontrib><creatorcontrib>Cenci, Patrizia</creatorcontrib><creatorcontrib>Checcucci, Bruno</creatorcontrib><creatorcontrib>Duk, Viacheslav</creatorcontrib><creatorcontrib>Lupi, Matteo</creatorcontrib><creatorcontrib>Pepe, Monica</creatorcontrib><creatorcontrib>Piccini, Mauro</creatorcontrib><creatorcontrib>Lubrano, Pasquale</creatorcontrib><creatorcontrib>Costantini, Flavio</creatorcontrib><creatorcontrib>Doble, Niels</creatorcontrib><creatorcontrib>Giorgi, Marcello</creatorcontrib><creatorcontrib>Giudici, Sergio</creatorcontrib><creatorcontrib>Lari, Enrico</creatorcontrib><creatorcontrib>Pinzino, Jacopo</creatorcontrib><creatorcontrib>Pontisso, Luca</creatorcontrib><creatorcontrib>Sozzi, Marco</creatorcontrib><creatorcontrib>Di Lella, Luigi</creatorcontrib><creatorcontrib>Mannelli, Italo</creatorcontrib><creatorcontrib>Cerri, Claudio</creatorcontrib><creatorcontrib>Fantechi, Riccardo</creatorcontrib><creatorcontrib>Pedreschi, Elena</creatorcontrib><creatorcontrib>Piandani, Roberto</creatorcontrib><creatorcontrib>Spinella, Franco</creatorcontrib><creatorcontrib>Biagioni, Andrea</creatorcontrib><creatorcontrib>d'Agostini, Giulio</creatorcontrib><creatorcontrib>Leonardi, Emanuele</creatorcontrib><creatorcontrib>Lonardo, Alessandro</creatorcontrib><creatorcontrib>Valente, Paolo</creatorcontrib><creatorcontrib>Vicini, Piero</creatorcontrib><creatorcontrib>Cretaro, Paolo</creatorcontrib><creatorcontrib>Turisini, Matteo</creatorcontrib><creatorcontrib>Frezza, Ottorino</creatorcontrib><creatorcontrib>Ammendola, Roberto</creatorcontrib><creatorcontrib>Bonaiuto, Vincenzo</creatorcontrib><creatorcontrib>de Simone, Nicola</creatorcontrib><creatorcontrib>Federici, Luca</creatorcontrib><collection>Hyper Article en Ligne (HAL)</collection><jtitle>The journal of high energy physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cortina Gil, Eduardo</au><au>Minucci, Elisa</au><au>Padolski, Sergey</au><au>Petrov, Plamen</au><au>Velghe, Bob</au><au>Bryman, Douglas</au><au>Fu, Ji</au><au>Numao, Toshio</au><au>Petrov, Yevgeniy</au><au>Wong, Vincent Wai Sum</au><au>Husek, Tomas</au><au>Kampf, Karol</au><au>Zamkovsky, Michal</au><au>Jerhot, Jan</au><au>Aliberti, Riccardo</au><au>Khoriauli, Gia</au><au>Kunze, Jonas</au><au>Lomidze, David</au><au>Marchevski, Radoslav</au><au>Peruzzo, Letizia</au><au>Vormstein, Mario</au><au>Wanke, Rainer</au><au>Cotta Ramusino, Angelo</au><au>Dalpiaz, Pietro</au><au>Fiorini, Massimiliano</au><au>Gamberini, Enrico</au><au>Gianoli, Alberto</au><au>Neri, Ilaria</au><au>Norton, Alan</au><au>Petrucci, Ferruccio</au><au>Wahl, Heinrich</au><au>Bizzeti, Andrea</au><au>Bucci, Francesca</au><au>Iacopini, Enrico</au><au>Latino, Giuseppe</au><au>Lenti, Massimo</au><au>Parenti, Andrea</au><au>Volpe, Roberta</au><au>Antonelli, Antonella</au><au>Gonnella, Francesco</au><au>Lamanna, Gianluca</au><au>Lanfranchi, Gaia</au><au>Tinti, Gemma</au><au>Martellotti, Silvia</au><au>Moulson, Matthew</au><au>Kozhuharov, Venelin</au><au>Litov, Leandar</au><au>Georgiev, Georgi</au><au>Raggi, Mauro</au><au>Spadaro, Tommaso</au><au>Ambrosino, Fabio</au><au>Fiorenza, Renato</au><au>Capussela, Tiziana</au><au>Corvino, Michele</au><au>Di Filippo, Domenico</au><au>Massarotti, Paolo</au><au>Mirra, Marco</au><au>Napolitano, Marco</au><au>Saracino, Giulio</au><au>Anzivino, Giuseppina</au><au>Imbergamo, Ermanno</au><au>Lollini, Riccardo</au><au>Santoni, Cristiano</au><au>Brizioli, Francesco</au><au>Barbanera, Mattia</au><au>Cenci, Patrizia</au><au>Checcucci, Bruno</au><au>Duk, Viacheslav</au><au>Lupi, Matteo</au><au>Pepe, Monica</au><au>Piccini, Mauro</au><au>Lubrano, Pasquale</au><au>Costantini, Flavio</au><au>Doble, Niels</au><au>Giorgi, Marcello</au><au>Giudici, Sergio</au><au>Lari, Enrico</au><au>Pinzino, Jacopo</au><au>Pontisso, Luca</au><au>Sozzi, Marco</au><au>Di Lella, Luigi</au><au>Mannelli, Italo</au><au>Cerri, Claudio</au><au>Fantechi, Riccardo</au><au>Pedreschi, Elena</au><au>Piandani, Roberto</au><au>Spinella, Franco</au><au>Biagioni, Andrea</au><au>d'Agostini, Giulio</au><au>Leonardi, Emanuele</au><au>Lonardo, Alessandro</au><au>Valente, Paolo</au><au>Vicini, Piero</au><au>Cretaro, Paolo</au><au>Turisini, Matteo</au><au>Frezza, Ottorino</au><au>Ammendola, Roberto</au><au>Bonaiuto, Vincenzo</au><au>de Simone, Nicola</au><au>Federici, Luca</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A study of the $K^+ \to \pi^0 e^+ \nu \gamma$ decay</atitle><jtitle>The journal of high energy physics</jtitle><date>2023-04-20</date><risdate>2023</risdate><volume>9</volume><issn>1126-6708</issn><eissn>1029-8479</eissn><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.</abstract><pub>Springer</pub><doi>10.1007/JHEP09(2023)040</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1126-6708 |
| ispartof | The journal of high energy physics, 2023-04, Vol.9 |
| issn | 1126-6708 1029-8479 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_04192770v1 |
| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Springer Nature OA Free Journals; Alma/SFX Local Collection |
| subjects | High Energy Physics - Experiment Physics |
| title | A study of the $K^+ \to \pi^0 e^+ \nu \gamma$ decay |
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