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15 results on '"Guaraldo, Carlo"'

1. Measurement of KN scattering below the KN mass threshold

Author

Noumi Hiroyuki, Inoue Kentaro, Kawasaki Shingo, Aikawa Shuu, Ajimura Shuhei, Akaishi Takaya, Asano Hidemitsu, Beer George, Berucci Carolina, Bragadireau Mario, Buehler Paul Alois, Busso Luigi, Cargnelli Michael, Choi Seonho, Curceanu Catalina, Enomoto Shun, Fujioka Hiroyuki, Fujiwara Yuya, Fukuda Tomokazu, Guaraldo Carlo, Hashimoto Tadashi, Hayano Ryugo S., Hiraiwa Toshihiko, Iio Masami, Iliescu Mihai, Ishiguro Yusuke, Ishimoto Shigeru, Ishikawa Takashi, Ithashi Kenta, Iwai Massaki, Iwasaki Masahiko, Kanno Koki, Kato Kazuma, kato Yuko, Kienle Paul, Komatsu Yusuke, Kou Hiroshi, Ma Yue, Marton Johann, Matsuda Yasuyuki, MIzoi Yutaka, Morra Ombretta, Murayama Rie, Nagae To-mofumi, Ohnishi Hiroaki, Okada Shinji, Omar Zhadyra, Outa Haruhiko, Piscicchia Kristian, Sada Yuta, Sakaguchi Atsushi, Sakuma Fuminori, Sato Masaharu, Scordo Alessadro, Sekimoto Michiko, Shi Hexi, Shirotori Kotaro, Sirghi Diana, Sirghi Florin, Suzuki Ken, Suzuki Shoji, Suzuki Takatoshi, Tanida Kiyoshi, Tatsuno Hideyuki, Tokiyasu Atsushi O., Tokuda Makoto, Tomono Dai, Toyoda Akihisa, Tsukada Kyo, Vazquez-Doce Oton, Widmann Eberhard, Yamaga Takumi, Yamazaki Toshimitsu, Yim Heejoong, Zhang Qi, and Zmeskal Johannes

Subjects
Physics, QC1-999
Abstract

Abstract. We measured πE invariant mass spectra below and above the K¯N mass threshold in the K−d → NπE reaction in order to study the K¯N interaction and the Λ(1405) resonance. This reaction can be described by the two-step process: (i) K¯N1 → K¯N followed by (ii) K¯N2 → πΣ, where N1 and N2 are nucleons bound in the deuteron. We deduced the S -wave scattering amplitude of K¯N →K¯N in the framework of the K¯N πΣ coupled channel so as to reproduce the observed πΣ spectra in the I = 0 channel. We found a resonance pole at 1417.7-7.4+6.0 (fitting error)-1.0+1.1 (systematic error) - i[26.9-7.9+6.0 (fitting error)-2.0+1.7 (systematic error)]MeV/c2.

Published
2024
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2. Studies of low-energy K−-nucleus/nuclei interactions with light nuclei by AMADEUS

Author

Skurzok Magdalena, Bazzi Massimiliano, Bragadireanu Mario, Bosnar Damir, Cargnelli Michael, Clozza Alberto, De Paolis Luca, Del Grande Raffaele, Fabbietti Laura, Guaraldo Carlo, Iliescu Mihai, Levi Sandri Paolo, Marton Johann, Miliucci Marco, Moskal Paweł, Piscicchia Kristian, Ramos Angels, Scordo Alessandro, Silarski Michał, Sirghi Diana Laura, Sirghi Florin, Spallone Antonio, Vazquez Doce Oton, Wycech Sławomir, Zmeskal Johann, and Curceanu Catalina

Subjects
Physics, QC1-999
Abstract

The AMADEUS Collaboration aims to provide unique experimental constraints to the antikaon-nucleon strong interaction in the regime of nonperturbative QCD. The K− nuclear captures, both at-rest and in-flight, are studied using the monochromatic low-momentum kaon beam (pK ∼ 120 MeV/c) produced at the DAΦNE collider, interacting with the KLOE detector materials. The studies are performed by reconstructing the hyperon-pion and hyperonnucleon final states. In this work a brief description of AMADEUS results for Λπ− and Λp final states is presented.

Published
2023
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3. Measurement of K N scattering below the K N mass threshold.

Author

Noumi, Hiroyuki, Inoue, Kentaro, Kawasaki, Shingo, Aikawa, Shuu, Ajimura, Shuhei, Akaishi, Takaya, Asano, Hidemitsu, Beer, George, Berucci, Carolina, Bragadireau, Mario, Buehler, Paul Alois, Busso, Luigi, Cargnelli, Michael, Choi, Seonho, Curceanu, Catalina, Enomoto, Shun, Fujioka, Hiroyuki, Fujiwara, Yuya, Fukuda, Tomokazu, and Guaraldo, Carlo

Subjects
MASS spectrometry, THRESHOLD energy, RESONANCE, OSCILLATIONS, DEUTERON sources
Abstract

Abstract. We measured πE invariant mass spectra below and above the K¯N mass threshold in the K−d → NπE reaction in order to study the K¯N interaction and the Λ(1405) resonance. This reaction can be described by the two-step process: (i) K¯N1 → K¯N followed by (ii) K¯N2 → πΣ, where N1 and N2 are nucleons bound in the deuteron. We deduced the S -wave scattering amplitude of K¯N →K¯N in the framework of the K¯N πΣ coupled channel so as to reproduce the observed πΣ spectra in the I = 0 channel. We found a resonance pole at 1417.7-7.4+6.0 (fitting error)-1.0+1.1 (systematic error) - i[26.9-7.9+6.0 (fitting error)-2.0+1.7 (systematic error)]MeV/c2. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Comparison of 3ΛH/4ΛH production cross-section via (K−, π0) reaction at J-PARC

Author

Akaishi Takaya, Asano Hidemitsu, Chen Xurong, Clozza Alberto, Curceanu Catalina, Del Grande Raffaele, Guaraldo Carlo, Han Chengdong, Hashimoto Tadashi, Iliescu Mihai, Inoue Kentaro, Ishimoto Shigeru, Itahashi Kenta, Iwasaki Masahiko, Ma Yue, Murayama Rie, Miliucci Marco, Noumi Hiroyuki, Ohnishi Hiroyuki, Okada Shinji, Outa Haruhiko, Piscicchia Kristian, Sada Yuta, Sakaguchi Atsushi, Sakuma Fuminori, Sato Masaharu, Scordo Alessandro, Sirghi Diana, Sirghi Florin, Shirotori Kotaro, Suzuki Shoji, Tanida Kiyoshi, Toda Taiga, Tokuda Megumu, Tsuruta Masato, Yamaga Takumi, Yuan Xiaohua, Zhang Hongqiang, Zhang Pengming, and Zhang Yapeng

Subjects
Physics, QC1-999
Abstract

Recent heavy-ion collision experiments reported a surprisingly short lifetime for the hypertriton, which has been recognized as the hypertriton lifetime puzzle. Our J-PARC E73 experiment contributes to solve this puzzle with an independent experimental method by employing 3He(K−, π0) 3ΛH reaction. In this contribution, we will demonstrate our capability to provide 3ΛH binding energy information by deriving the production cross section ratio, σ3ΛH/σ4ΛH. The production cross section data for 3ΛH and 4ΛH are already available as the pilot run of E73 experiment and data analysis is in progress.

Published
2022
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5. Summary of the K−pp bound-state observation in E15 and future prospects

Author

Sakuma Fuminori, Ajimura Shuhei, Akaishi Takaya, Asano Hidemitsu, Bazzi Massimiliano, Beer George, Bhang Hyoungchan, Bragadireanu Mario, Buehler Paul, Busso Luigi, Cargnelli Michael, Choi Seonho, Clozza Alberto, Curceanu Catalina, Enomoto Shun, Fujioka Hiroyuki, Fujiwara Yuya, Fukuda Tomokazu, Guaraldo Carlo, Hashimoto Tadashi, Hayano Ryugo S., Hiraiwa Toshihiko, Iio Masami, Iliescu Mihai, Inoue Kentaro, Ishiguro Yosuke, Ishikawa Takashi, Ishimoto Shigeru, Itahashi Kenta, Iwasaki Masahiko, Iwai Masaaki, Kanno Koki, Kato Kazuma, Kato Yuko, Kawasaki Shingo, Kienle Paul, Kou Hiroshi, Ma Yue, Marton Johann, Matsuda Yasuyuki, Miliucci Marco, Mizoi Yutaka, Morra Ombretta, Murayama Rie, Nagae Tomofumi, Noumi Hiroyuki, Ohnishi Hiroaki, Okada Shinji, Outa Haruhiko, Ozawa Kyoichiro, Piscicchia Kristian, Sada Yuta, Sakaguchi Atsushi, Sato Masaharu, Scordo Alessandro, Sekimoto Michiko, Shi Hexi, Shirotori Kotaro, Sirghi Diana, Sirghi Florin, Suzuki Shoji, Suzuki Takatoshi, Tanida Kiyoshi, Tatsuno Hideyuki, Tokuda Makoto, Tomono Dai, Toyoda Akihisa, Tsukada Kyo, Vázquez Doce Oton, Widmann Eberhard, Yamaga Takumi, Yamazaki Toshimitsu, Yoshida Chihiro, Zhang Qi, and Zmeskal Johann

Subjects
Physics, QC1-999
Abstract

The possible existence of deeply-bound $\bar K$K¯-nuclear bound states, kaonic nuclei, has been widely discussed as products of the strongly attractive $\bar K$K¯N interaction in I = 0 channels. Investigations of those exotic states will provide us unique information of the $\bar K$K¯N interaction below the threshold, which is still not fully understood so far. Recently, we observed the simplest kaonic nuclei, $\bar K$K¯NN, having a much deeper binding energy than normal nuclei via inflight (K−, N) reactions at the J-PARC E15 experiment. For further studies, we have proposed a series of experimental programs for the systematic investigation of light kaonic nuclei, from $\bar K$K¯N (Λ(1405)) to $\bar K$K¯NNNN. We will measure the $\bar K$K¯NNN (A = 3) system at the new experiment approved as J-PARC E80, as a first step toward a comprehensive study.

Published
2022
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6. Analysis methods used and planned for VIP-2

Author

Porcelli Alessio, Bartalucci Sergio, Bertolucci Sergio, Bazzi Massimiliano, Bragadireanu Mario, Capoccia Cesidio, Cargnelli Michael, Clozza Alberto, Curceanu Catalina, De Paolis Luca, Del Grande Raffaele, Fiorini Carlo, Guaraldo Carlo, Iliescu Mihai, Laubenstein Matthias, Marton Johann, Miliucci Marco, Milotti Edoardo, Napolitano Fabrizio, Piscicchia Kristian, Scordo Alessandro, Shi Hexi, Sirghi Diana Laura, Sirghi Florin, Sgaramella Francesco, Vazquez Doce Oton, and Zmeskal Johann

Subjects
Physics, QC1-999
Abstract

VIP-2 (VIolation of Pauli exclusion principle - 2) is an underground experiment sited in the underground “Laboratori Nazionali del Gran Sasso.” It aims to investigate possible violations of the Pauli Exclusion Principle (PEP) and, in this context, Quantum Gravity models implying violations of PEP. While an upper limit of PEP violation probability is recently published, the data requires further developments of accurate analysis techniques and methods. In this contribution, we present an overview of the methodologies proposed for current and planned analysis.

Published
2022
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7. Kaonic atoms measurements at the DAΦNE collider: the SIDDHARTA-2 experiment

Author

Curceanu Catalina, Miliucci Marco, Bazzi Massimiliano, Bosnar Damir, Bragadireanu Mario, Carminati Marco, Cargnelli Michael, Clozza Alberto, Deda Griseld, De Paolis Luca, Del Grande Raffaele, Fiorini Carlo, Guaraldo Carlo, Iliescu Mihail, Iwasaki Masahiko, King Pietro, Levi Sandri Paolo, Marton Johann, Moskal Paweł, Napolitano Fabrizio, Niedźwiecki Szymon, Piscicchia Kristian, Scordo Alessandro, Sgaramella Francesco, Shi Hexi, Silarski Michał, Sirghi Diana, Sirghi Florin, Skurzok Magdalena, Spallone Antonio, Tüchler Marlene, Vazquez Doce Oton, and Zmeskal Johann

Subjects
Physics, QC1-999
Abstract

The X-ray spectroscopy measurements of light kaonic atoms’ deexcitation towards the fundamental level provide unique information on the low-energy Quantum ChromoDynamics (QCD) in the strangeness sector, being a direct probe of the kaon/nucleon interaction at threshold, unobtainable through the scattering experiments. In this framework, the SIDDHARTA-2 collaboration is going to perform the first kaonic deuterium 2p → 1s transition measurement at the DAΦNE collider of Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali di Frascati. Combining this measurement with the kaonic hydrogen one performed by SIDDHARTA in 2009 it will be possible to obtain, in a model-independent way, the isospin-dependent antikaon-nucleon scattering lengths. The paper introduces the SIDDHARTA-2 setup, an upgraded version with respect to the one used for the kaonic hydrogen measurement, dedicated to the ambitious kaonic deuterium measurement, together with the preliminary results obtained during the kaonic helium run, preparatory for the SIDDHARTA-2 data taking campaign.

Published
2022
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8. Studies of low-energy K−-nucleus/nuclei interactions with light nuclei by AMADEUS.

Author

Skurzok, Magdalena, Bazzi, Massimiliano, Bragadireanu, Mario, Bosnar, Damir, Cargnelli, Michael, Clozza, Alberto, De Paolis, Luca, Del Grande, Raffaele, Fabbietti, Laura, Guaraldo, Carlo, Iliescu, Mihai, Levi Sandri, Paolo, Marton, Johann, Miliucci, Marco, Moskal, Paweł, Piscicchia, Kristian, Ramos, Angels, Scordo, Alessandro, Silarski, Michał, and Sirghi, Diana Laura

Subjects
NEUTRON capture, NUCLEAR charge, NUCLEAR astrophysics, NUCLEOSYNTHESIS, NUCLEAR reactions
Abstract

The AMADEUS Collaboration aims to provide unique experimental constraints to the antikaon-nucleon strong interaction in the regime of nonperturbative QCD. The K− nuclear captures, both at-rest and in-flight, are studied using the monochromatic low-momentum kaon beam (pK ∼ 120 MeV/c) produced at the DAΦNE collider, interacting with the KLOE detector materials. The studies are performed by reconstructing the hyperon-pion and hyperonnucleon final states. In this work a brief description of AMADEUS results for Λπ− and Λp final states is presented. [ABSTRACT FROM AUTHOR]

Published
2023
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9. Summary of theK−ppbound-state observation in E15 and future prospects

Author

Sakuma, Fuminori, primary, Ajimura, Shuhei, additional, Akaishi, Takaya, additional, Asano, Hidemitsu, additional, Bazzi, Massimiliano, additional, Beer, George, additional, Bhang, Hyoungchan, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Clozza, Alberto, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Iwai, Masaaki, additional, Kanno, Koki, additional, Kato, Kazuma, additional, Kato, Yuko, additional, Kawasaki, Shingo, additional, Kienle, Paul, additional, Kou, Hiroshi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Miliucci, Marco, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Murayama, Rie, additional, Nagae, Tomofumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Outa, Haruhiko, additional, Ozawa, Kyoichiro, additional, Piscicchia, Kristian, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sato, Masaharu, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirotori, Kotaro, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Tanida, Kiyoshi, additional, Tatsuno, Hideyuki, additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Vázquez Doce, Oton, additional, Widmann, Eberhard, additional, Yamaga, Takumi, additional, Yamazaki, Toshimitsu, additional, Yoshida, Chihiro, additional, Zhang, Qi, additional, and Zmeskal, Johann, additional

Published
2022
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10. Search for Deeply Bound Kaonic Nuclear States with AMADEUS

Author

Skurzok Magdalena, Cargnelli Michael, Curceanu Catalina, Del Grande Raffaele, Fabbietti Laura, Guaraldo Carlo, Marton Johann, Moskal Pawel, Piscicchia Kristian, Scordo Alessandro, Silarski Michal, Sirghi Diana Laura, Tucakovic Ivana, Vazquez Doce Oton, Wycech Sławomir, Widmann Eberhard, and Zmeskal Johann

Subjects
Physics, QC1-999
Abstract

We briefly report on the search for Deeply Bound Kaonic Nuclear States with AMADEUS in the Σ0p channel following K− absorption on 12C and outline future perspectives for this work.

Published
2017
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11. Summary of the K−pp bound-state observation in E15 and future prospects.

Author

Sakuma, Fuminori, Ajimura, Shuhei, Akaishi, Takaya, Asano, Hidemitsu, Bazzi, Massimiliano, Beer, George, Bhang, Hyoungchan, Bragadireanu, Mario, Buehler, Paul, Busso, Luigi, Cargnelli, Michael, Choi, Seonho, Clozza, Alberto, Curceanu, Catalina, Enomoto, Shun, Fujioka, Hiroyuki, Fujiwara, Yuya, Fukuda, Tomokazu, Guaraldo, Carlo, and Hashimoto, Tadashi

Subjects
BOUND states, KAONS, BINDING energy, NUCLEAR energy, NUCLEAR physics
Abstract

The possible existence of deeply-bound $\bar K$ K ¯ -nuclear bound states, kaonic nuclei, has been widely discussed as products of the strongly attractive $\bar K$ K ¯ N interaction in I = 0 channels. Investigations of those exotic states will provide us unique information of the $\bar K$ K ¯ N interaction below the threshold, which is still not fully understood so far. Recently, we observed the simplest kaonic nuclei, $\bar K$ K ¯ NN, having a much deeper binding energy than normal nuclei via inflight (K−, N) reactions at the J-PARC E15 experiment. For further studies, we have proposed a series of experimental programs for the systematic investigation of light kaonic nuclei, from $\bar K$ K ¯ N (Λ(1405)) to $\bar K$ K ¯ NNNN. We will measure the $\bar K$ K ¯ NNN (A = 3) system at the new experiment approved as J-PARC E80, as a first step toward a comprehensive study. [ABSTRACT FROM AUTHOR]

Published
2022
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12. Comparison of 3ΛH/4ΛH production cross-section via (K−, π0) reaction at J-PARC.

Author

Akaishi, Takaya, Asano, Hidemitsu, Chen, Xurong, Clozza, Alberto, Curceanu, Catalina, Del Grande, Raffaele, Guaraldo, Carlo, Han, Chengdong, Hashimoto, Tadashi, Iliescu, Mihai, Inoue, Kentaro, Ishimoto, Shigeru, Itahashi, Kenta, Iwasaki, Masahiko, Ma, Yue, Murayama, Rie, Miliucci, Marco, Noumi, Hiroyuki, Ohnishi, Hiroyuki, and Okada, Shinji

Subjects
NUCLEAR cross sections, HEAVY ion collisions, HYPERTRITONS, BINDING energy, NUCLEAR reactions
Abstract

Recent heavy-ion collision experiments reported a surprisingly short lifetime for the hypertriton, which has been recognized as the hypertriton lifetime puzzle. Our J-PARC E73 experiment contributes to solve this puzzle with an independent experimental method by employing 3He(K−, π0) 3ΛH reaction. In this contribution, we will demonstrate our capability to provide 3ΛH binding energy information by deriving the production cross section ratio, σ3ΛH/σ4ΛH. The production cross section data for 3ΛH and 4ΛH are already available as the pilot run of E73 experiment and data analysis is in progress. [ABSTRACT FROM AUTHOR]

Published
2022
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13. Preface

Author

Ströher Hans, Kistryn Stanisław, and Guaraldo Carlo

Subjects
Physics, QC1-999
Published
2012
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14. Preface

Author

Guaraldo, Carlo, primary, Kistryn, Stanisław, additional, and Ströher, Hans, additional

Published
2012
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15. Preface.

Author

Guaraldo, Carlo, Magiera, Andrzej, and Ströher, Hans

Subjects
*MESONS, *MESON detection
Abstract

A preface to the book "EPJ Web of Conferences" is presented.

Published
2014

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