☆ 4.2 Article Proceedings Paper

Strange hadronic physics in electroproduction experiments at the Mainz Microtron

NUCLEAR PHYSICS A (2012)

期刊

NUCLEAR PHYSICS A

卷 881, 期 -, 页码 187-198

出版社

ELSEVIER SCIENCE BV

DOI: 10.1016/j.nuclphysa.2012.01.008

关键词

Strangeness reactions; Kaon electroproduction; Missing mass spectroscopy; Hypernuclei; Decay-pion spectroscopy

类别

Physics, Nuclear

资金

Grants-in-Aid for Scientific Research [11J56062] Funding Source: KAKEN

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摘要

Present and future research into the electroproduction of strangeness plays an important role at Mainz Microtron MAMI. With the KAOS spectrometer for kaon detection operated in the multi-spectrometer facility first cross section measurements of the exclusive p(e, e' K+)Lambda, Sigma(0) reactions at low-momentum transfers have been performed. These measurements have clearly discriminated between effective Lagrangian models for photo- and electroproduction of strangeness. Recently, the KAOS spectrometer was upgraded to a double-arm spectrometer for the measurement of elementary cross sections at very forward scattering angles and for the missing mass spectroscopy of hypernuclear states. In parallel, pioneering experiments on decay-pion spectroscopy of electroproduced hypernuclei were carried out at MAMI. Future experiments will on the one side address the cross section of the elementary process with polarized beam and on the other side continue the hypernuclear spectroscopy with different light nuclear targets. (C) 2012 Elsevier B.V. All rights reserved.

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Article Physics, Multidisciplinary

First CLAS12 Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries in the Extended Valence Region

G. Christiaens, M. Defurne, D. Sokhan, P. Achenbach, Z. Akbar, M. J. Amaryan, H. Atac, H. Avakian, C. Ayerbe Gayoso, L. Baashen, N. A. Baltzell, L. Barion, M. Bashkanov, M. Battaglieri, I. Bedlinskiy, B. Benkel, F. Benmokhtar, A. Bianconi, A. S. Biselli, M. Bondi, W. A. Booth, F. Bossu, S. Boiarinov, K. -Th. Brinkmann, W. J. Briscoe, S. Bueltmann, D. Bulumulla, V. D. Burkert, T. Cao, D. S. Carman, J. C. Carvajal, A. Celentano, P. Chatagnon, V. Chesnokov, T. Chetry, G. Ciullo, G. Clash, P. L. Cole, M. Contalbrigo, G. Costantini, A. D'Angelo, N. Dashyan, R. De Vita, A. Deur, S. Diehl, C. Dilks, C. Djalali, R. Dupre, H. Egiyan, M. Ehrhart, A. El Alaoui, L. El Fassi, L. Elouadrhiri, S. Fegan, A. Filippi, K. Gates, G. Gavalian, Y. Ghandilyan, G. P. Gilfoyle, F. X. Girod, D. I. Glazier, A. A. Golubenko, G. Gosta, R. W. Gothe, Y. Gotra, K. A. Griffioen, M. Guidal, K. Hafidi, H. Hakobyan, M. Hattawy, F. Hauenstein, T. B. Hayward, D. Heddle, A. Hobart, D. E. Holmberg, M. Holtrop, Y. Ilieva, D. G. Ireland, E. L. Isupov, H. S. Jo, D. Keller, M. Khachatryan, A. Khanal, W. Kim, A. Kripko, V. Kubarovsky, S. E. Kuhn, V. Lagerquist, L. Lanza, M. L. Kabir, M. Leali, S. Lee, P. Lenisa, X. Li, K. Livingston, I. J. D. MacGregor, D. Marchand, V. Mascagna, G. Matousek, B. McKinnon, C. McLauchlin, Z. E. Meziani, S. Migliorati, R. G. Milner, T. Mineeva, M. Mirazita, V. Mokeev, E. Molina, C. Munoz Camacho, P. Nadel-Turonski, P. Naidoo, K. Neupane, S. Niccolai, M. Nicol, G. Niculescu, M. Osipenko, M. Ouillon, P. Pandey, M. Paolone, L. L. Pappalardo, R. Paremuzyan, E. Pasyuk, S. J. Paul, W. Phelps, N. Pilleux, M. Pokhrel, J. Poudel, J. W. Price, Y. Prok, A. Radic, N. Ramasubramanian, B. A. Raue, Trevor Reed, J. Richards, M. Ripani, J. Ritman, P. Rossi, F. Sabatie, C. Salgado, S. Schadmand, A. Schmidt, M. B. C. Scott, Y. G. Sharabian, E. Shirokov, U. Shrestha, P. Simmerling, N. Sparveris, M. Spreafico, S. Stepanyan, I. I. Strakovsky, S. Strauch, J. A. Tan, N. Trotta, M. Turisini, R. Tyson, M. Ungaro, S. Vallarino, L. Venturelli, H. Voskanyan, E. Voutier, D. P. Watts, X. Wei, R. Williams, R. Wishart, M. H. Wood, N. Zachariou, J. Zhang, Z. W. Zhao, V. Ziegler, M. Zurek

Summary: We present the first measurement of the DVCS beam-spin asymmetry using the CLAS12 spectrometer, with a 10.2 and 10.6 GeV electron beam scattering from unpolarized protons. Our results significantly expand the Q2 and Bjorken-x phase space beyond existing data in the valence region, providing 1600 new data points with unprecedented statistical uncertainty. These findings set new, tight constraints for future phenomenological studies.

PHYSICAL REVIEW LETTERS (2023)

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Article Physics, Multidisciplinary

Measurement of the ?-Particle Monopole Transition Form Factor Challenges Theory: A Low-Energy Puzzle for Nuclear Forces?

S. Kegel, P. Achenbach, S. Bacca, N. Barnea, J. Bericic, D. Bosnar, L. Correa, M. O. Distler, A. Esser, H. Fonvieille, I. Friscic, M. Heilig, P. Herrmann, M. Hoek, P. Klag, T. Kolar, W. Leidemann, H. Merkel, M. Mihovilovic, J. Mueller, U. Mueller, G. Orlandini, J. Pochodzalla, B. S. Schlimme, M. Schoth, F. Schulz, C. Sfienti, S. Sirea, R. Spreckels, Y. Stoettinger, M. Thiel, A. Tyukin, T. Walcher, A. Weber

Summary: We conduct a comprehensive study on the alpha-particle excitation process from its ground state to the resonance state. By performing an electron scattering experiment, we investigate the monopole transition form factor in a wide range of Q2 values. The newly obtained data show significantly higher precision compared to previous data sets, enabling the determination of two coefficients in a low-momentum expansion and revealing a new puzzle. Our experimental results, when compared to state-of-the-art theoretical calculations, indicate a failure of modern nuclear forces, including those derived from chiral effective field theory.

PHYSICAL REVIEW LETTERS (2023)

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Article Physics, Multidisciplinary

First Measurement of Lambda Electroproduction off Nuclei in the Current and Target Fragmentation Regions

T. Chetry, L. El Fassi, W. K. Brooks, R. Dupre, A. El Alaoui, K. Hafidi, P. Achenbach, K. P. Adhikari, Z. Akbar, W. R. Armstrong, M. Arratia, H. Atac, H. Avakian, L. Baashen, N. A. Baltzell, L. Barion, M. Bashkanov, M. Battaglieri, I. Bedlinskiy, B. Benkel, F. Benmokhtar, A. Bianconi, A. S. Biselli, M. Bondi, W. A. Booth, F. Bossu, S. Boiarinov, K. -Th. Brinkmann, W. J. Briscoe, D. Bulumulla, V. D. Burkert, D. S. Carman, J. C. Carvajal, A. Celentano, P. Chatagnon, V. Chesnokov, G. Ciullo, P. L. Cole, M. Contalbrigo, G. Costantini, A. D'Angelo, N. Dashyan, R. De Vita, M. Defurne, A. Deur, S. Diehl, C. Djalali, H. Egiyan, L. Elouadrhiri, P. Eugenio, S. Fegan, A. Filippi, G. Gavalian, Y. Ghandilyan, G. P. Gilfoyle, D. I. Glazier, A. A. Golubenko, G. Gosta, R. W. Gothe, K. A. Griffioen, M. Guidal, L. Guo, H. Hakobyan, M. Hattawy, T. B. Hayward, D. Heddle, A. Hobart, M. Holtrop, Y. Ilieva, D. G. Ireland, E. L. Isupov, D. Jenkins, H. S. Jo, M. L. Kabir, A. Khanal, M. Khandaker, A. Kim, W. Kim, F. J. Klein, A. Kripko, V. Kubarovsky, V. Lagerquist, L. Lanza, M. Leali, S. Lee, P. Lenisa, X. Li, K. Livingston, I. J. D. MacGregor, D. Marchand, V. Mascagna, B. McKinnon, C. McLauchlin, Z. E. Meziani, S. Migliorati, T. Mineeva, M. Mirazita, V. Mokeev, C. Munoz Camacho, P. Nadel-Turonski, K. Neupane, S. Niccolai, M. Nicol, G. Niculescu, M. Osipenko, A. I. Ostrovidov, P. Pandey, M. Paolone, L. L. Pappalardo, R. Paremuzyan, E. Pasyuk, S. J. Paul, W. Phelps, N. Pilleux, M. Pokhrel, J. Poudel, J. W. Price, Y. Prok, B. A. Raue, T. Reed, J. Richards, M. Ripani, J. Ritman, G. Rosner, F. Sabatie, C. Salgado, S. Schadmand, A. Schmidt, R. A. Schumacher, Y. G. Sharabian, E. V. Shirokov, U. Shrestha, P. Simmerling, D. Sokhan, N. Sparveris, S. Stepanyan, I. I. Strakovsky, S. Strauch, J. A. Tan, N. Trotta, R. Tyson, M. Ungaro, S. Vallarino, L. Venturelli, H. Voskanyan, E. Voutier, X. Wei, L. B. Weinstein, R. Williams, R. Wishart, M. H. Wood, M. Yurov, N. Zachariou, Z. W. Zhao, M. Zurek

Summary: We report the first measurements of the multiplicity ratio and transverse momentum broadening as a function of energy fraction in hyperon production in semi-inclusive deep-inelastic scattering off different targets. These results show a strong suppression at high energy fraction and an enhancement at low energy fraction. The observed transverse momentum broadening is much larger than that of light mesons, indicating a strong interaction between the propagating entity and the nuclear medium.

PHYSICAL REVIEW LETTERS (2023)

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Article Cell Biology

A Deep-Learning-Computed Cancer Score for the Identification of Human Hepatocellular Carcinoma Area Based on a Six-Colour Multiplex Immunofluorescence Panel

Axel Dievernich, Johannes Stegmaier, Pascal Achenbach, Svetlana Warkentin, Till Braunschweig, Ulf Peter Neumann, Uwe Klinge

Summary: Liver cancer, particularly hepatocellular carcinoma (HCC), is a common and deadly form of cancer worldwide. Numerous studies have examined the impact of immune infiltrates on cancer patient prognosis, but accurately delineating the cancer area has been challenging due to heterogeneity and operator variability. However, advancements in multiplex analyses and machine learning techniques offer potential for objective identification of cancer areas and analysis of prognostic immune parameters.

CELLS (2023)

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Article Instruments & Instrumentation

Detector requirements and simulation results for the EIC exclusive, diffractive and tagging physics program using the ECCE detector concept

A. Bylinkin, C. T. Dean, S. Fegan, D. Gangadharan, K. Gates, S. J. D. Kay, I. Korover, W. B. Li, X. Li, R. Montgomery, D. Nguyen, G. Penman, J. R. Pybus, N. Santiesteban, S. Shimizu, R. Trotta, A. Usman, M. D. Baker, J. Frantz, D. I. Glazier, D. W. Higinbotham, T. Horn, J. Huang, G. M. Huber, R. Reed, J. Roche, A. Schmidt, P. Steinberg, J. Stevens, Y. Goto, C. Munoz Camacho, M. Murray, Z. Papandreou, W. Zha, J. K. Adkins, Y. Akiba, A. Albataineh, M. Amaryan, I. C. Arsene, C. Ayerbe Gayoso, J. Bae, X. Bai, M. Bashkanov, R. Bellwied, F. Benmokhtar, V. Berdnikov, J. C. Bernauer, F. Bock, W. Boeglin, M. Borysova, E. Brash, P. Brindza, W. J. Briscoe, M. Brooks, S. Bueltmann, M. H. S. Bukhari, R. Capobianco, W. -C. Chang, Y. Cheon, K. Chen, K. -F. Chen, K. -Y. Cheng, M. Chiu, T. Chujo, Z. Citron, E. Cline, E. Cohen, T. Cormier, Y. Corrales Morales, C. Cotton, J. Crafts, C. Crawford, S. Creekmore, C. Cuevas, J. Cunningham, G. David, M. Demarteau, S. Diehl, N. Doshita, R. Dupre, J. M. Durham, R. Dzhygadlo, R. Ehlers, L. El Fassi, A. Emmert, R. Ent, C. Fanelli, R. Fatemi, M. Finger, M. Finger, M. Friedman, I. Friscic, S. Gardner, F. Geurts, R. Gilman, E. Glimos, N. Grau, S. V. Greene, A. Q. Guo, L. Guo, S. K. Ha, J. Haggerty, T. Hayward, X. He, O. Hen, M. Hoballah, A. Hoghmrtsyan, P. -h. J. Hsu, A. Hutson, K. Y. Hwang, C. E. Hyde, M. Inaba, T. Iwata, H. S. Jo, K. Joo, N. Kalantarians, G. Kalicy, K. Kawade, A. Kim, B. Kim, C. Kim, M. Kim, Y. Kim, E. Kistenev, V. Klimenko, S. H. Ko, W. Korsch, G. Krintiras, S. Kuhn, C. -M. Kuo, T. Kutz, J. Lajoie, D. Lawrence, S. Lebedev, H. Lee, J. S. H. Lee, S. W. Lee, Y. -J. Lee, W. Li, Y. T. Liang, S. Lim, C. -h. Lin, D. X. Lin, K. Liu, M. X. Liu, K. Livingston, N. Liyanage, W. J. Llope, C. Loizides, E. Long, R. -S. Lu, Z. Lu, W. Lynch, S. Mantry, D. Marchand, M. Marcisovsky, C. Markert, P. Markowitz, H. Marukyan, P. Mcgaughey, M. Mihovilovic, R. G. Milner, A. Milov, Y. Miyachi, A. Mkrtchyan, P. Monaghan, D. Morrison, A. Movsisyan, H. Mkrtchyan, A. Mkrtchyan, K. Nagai, J. Nagle, I. Nakagawa, C. Nattrass, S. Niccolai, R. Nouicer, G. Nukazuka, M. Nycz, V. A. Okorokov, S. Oresic, J. D. Osborn, C. O'Shaughnessy, S. Paganis, S. F. Pate, M. Patel, C. Paus, M. G. Perdekamp, D. V. Perepelitsa, H. Periera da Costa, K. Peters, W. Phelps, E. Piasetzky, C. Pinkenburg, I. Prochazka, T. Protzman, M. L. Purschke, J. Putschke, R. Rajput-Ghoshal, J. Rasson, B. Raue, K. F. Read, K. Roed, J. Reinhold, E. L. Renner, J. Richards, C. Riedl, T. Rinn, G. M. Roland, G. Ron, M. Rosati, C. Royon, J. Ryu, S. Salur, R. Santos, M. Sarsour, J. Schambach, N. Schmidt, C. Schwarz, J. Schwiening, R. Seidl, A. Sickles, P. Simmerling, S. Sirca, D. Sharma, Z. Shi, T. -A. Shibata, C. -W. Shih, U. Shrestha, K. Slifer, K. Smith, D. Sokhan, R. Soltz, W. Sondheim, J. Song, I. I. Strakovsky, P. Stepanov, J. Strube, P. Sun, X. Sun, K. Suresh, V. Tadevosyan, W. -C. Tang, S. Tapia Araya, S. Tarafdar, L. Teodorescu, D. Thomas, A. Timmins, L. Tomasek, N. Trotta, T. S. Tveter, E. Umaka, H. W. van Hecke, C. Van Hulse, J. Velkovska, E. Voutier, P. K. Wang, Q. Wang, Y. Wang, D. P. Watts, N. Wickramaarachchi, L. Weinstein, M. Williams, C. -P. Wong, L. Wood, M. H. Wood, C. Woody, B. Wyslouch, Z. Xiao, Y. Yamazaki, Y. Yang, Z. Ye, H. D. Yoo, M. Yurov, N. Zachariou, W. A. Zajc, J. -L. Zhang, J. -X. Zhang, Y. Zhang, Y. -X. Zhao, X. Zheng, P. Zhuang

Summary: This article presents a collection of simulation studies using the ECCE detector concept in the context of the EIC's exclusive, diffractive, and tagging physics program. The studies aim to further explore the quark-gluon structure of nucleons and nuclei. Preliminary studies confirm the proposed technology and design satisfy the requirements, and the projected physics impact results are based on simulated detector performance. Insights related to a potential second EIC detector are also discussed, which could guide future development.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT (2023)

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Article Instruments & Instrumentation

Evaluation of longitudinal double-spin asymmetry measurements in semi-inclusive deep-inelastic scattering from the proton for the ECCE detector design

C. Van Hulse, J. K. Adkins, Y. Akiba, A. Albataineh, M. Amaryan, I. C. Arsene, C. Ayerbe Gayoso, J. Bae, X. Bai, M. D. Baker, M. Bashkanov, R. Bellwied, F. Benmokhtar, V. Berdnikov, J. C. Bernauer, F. Bock, W. Boeglin, M. Borysova, E. Brash, P. Brindza, W. J. Briscoe, M. Brooks, S. Bueltmann, M. H. S. Bukhari, A. Bylinkin, R. Capobianco, W. -C. Chang, Y. Cheon, K. Chen, K. -F. Chen, K. -Y. Cheng, M. Chiu, T. Chujo, Z. Citron, E. Cline, E. Cohen, T. Cormier, Y. Corrales Morales, C. Cotton, J. Crafts, C. Crawford, S. Creekmore, J. Cunningham, G. David, C. T. Dean, M. Demarteau, S. Diehl, N. Doshita, R. Dupre, J. M. Durham, R. Dzhygadlo, R. Ehlers, L. El Fassi, A. Emmert, R. Ent, C. Fanelli, R. Fatemi, S. Fegan, M. Finger, M. Finger, J. Frantz, M. Friedman, I. Friscic, D. Gangadharan, S. Gardner, K. Gates, F. Geurts, R. Gilman, D. Glazier, E. Glimos, Y. Goto, N. Grau, S. V. Greene, A. Q. Guo, L. Guo, S. K. Ha, J. Haggerty, T. Hayward, X. He, O. Hen, D. W. Higinbotham, M. Hoballah, T. Horn, A. Hoghmrtsyan, P. -H. J. Hsu, J. Huang, G. Huber, A. Hutson, K. Y. Hwang, C. E. Hyde, M. Inaba, T. Iwata, H. S. Jo, K. Joo, N. Kalantarians, G. Kalicy, K. Kawade, S. J. D. Kay, A. Kim, B. Kim, C. Kim, M. Kim, Y. Kim, E. Kistenev, V. Klimenko, S. H. Ko, I. Korover, W. Korsch, G. Krintiras, S. Kuhn, C. -M. Kuo, T. Kutz, J. Lajoie, D. Lawrence, S. Lebedev, H. Lee, J. S. H. Lee, S. W. Lee, Y. -j. Lee, W. Li, W. B. Li, X. Li, X. Li, X. Li, Y. T. Liang, S. Lim, C. -H. Lin, D. X. Lin, K. Liu, M. X. Liu, K. Livingston, N. Liyanage, W. J. Llope, C. Loizides, E. Long, R. -S. Lu, Z. Lu, W. Lynch, S. Mantry, D. Marchand, M. Marcisovsky, C. Markert, P. Markowitz, H. Marukyan, P. McGaughey, M. Mihovilovic, R. G. Milner, A. Milov, Y. Miyachi, A. Mkrtchyan, H. Mkrtchyan, P. Monaghan, R. Montgomery, D. Morrison, A. Movsisyan, C. Munoz Camacho, M. Murray, K. Nagai, J. Nagle, I. Nakagawa, C. Nattrass, D. Nguyen, S. Niccolai, R. Nouicer, G. Nukazuka, M. Nycz, V. A. Okorokov, S. Oresic, J. D. Osborn, C. O'Shaughnessy, S. Paganis, Z. Papandreou, S. F. Pate, M. Patel, C. Paus, G. Penman, M. G. Perdekamp, D. V. Perepelitsa, H. Periera da Costa, K. Peters, W. Phelps, E. Piasetzky, C. Pinkenburg, I. Prochazka, T. Protzman, M. L. Purschke, J. Putschke, J. R. Pybus, R. Rajput-Ghoshal, J. Rasson, K. F. Read, K. Roed, R. Reed, J. Reinhold, E. L. Renner, J. Richards, C. Riedl, T. Rinn, J. Roche, G. M. Roland, G. Ron, M. Rosati, C. Royon, J. Ryu, S. Salur, N. Santiesteban, R. Santos, M. Sarsour, J. Schambach, A. Schmidt, N. Schmidt, C. Schwarz, J. Schwiening, R. Seidl, A. Sickles, P. Simmerling, S. Sirca, D. Sharma, Z. Shi, T. -A. Shibata, C. -W. Shih, S. Shimizu, U. Shrestha, K. Slifer, K. Smith, D. Sokhan, R. Soltz, W. Sondheim, J. Song, I. I. Strakovsky, P. Steinberg, P. Stepanov, J. Stevens, J. Strube, P. Sun, X. Sun, K. Suresh, V. Tadevosyan, W. -c. Tang, S. Tapia Araya, S. Tarafdar, L. Teodorescu, D. Thomas, A. Timmins, L. Tomasek, N. Trotta, R. Trotta, T. S. Tveter, E. Umaka, A. Usman, H. W. van Hecke, J. Velkovska, E. Voutier, P. K. Wang, Q. Wang, Y. Wang, Y. Wang, D. P. Watts, N. Wickramaarachchi, L. Weinstein, M. Williams, C. -P. Wong, L. Wood, M. H. Wood, C. Woody, B. Wyslouch, Z. Xiao, Y. Yamazaki, Y. Yang, Z. Ye, H. D. Yoo, M. Yurov, N. Zachariou, W. A. Zajc, W. Zha, J. -L. Zhang, J. -X. Zhang, Y. Zhang, Y. -X. Zhao, X. Zheng, P. Zhuang

Summary: The evaluation of double-spin asymmetries for charge-separated pions and kaons produced in deep-inelastic scattering from the proton using the ECCE detector design concept is presented. The study uses unpolarised simulated data and reweights them at the parton level to generate the relevant asymmetries. The analysis shows that the ECCE detector concept provides the necessary resolution and acceptance for a robust extraction of asymmetries, allowing for a precise extraction of sea-quark helicity distributions.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT (2023)

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Review Instruments & Instrumentation

Design and simulated performance of calorimetry systems for the ECCE detector at the electron ion collider

F. Bock, N. Schmidt, P. K. Wang, N. Santiesteban, T. Horn, J. Huang, J. Lajoie, C. Munoz Camacho, J. K. Adkins, Y. Akiba, A. Albataineh, M. Amaryan, I. C. Arsene, C. Ayerbe Gayoso, J. Bae, X. Bai, M. D. Baker, M. Bashkanov, R. Bellwied, F. Benmokhtar, V. Berdnikov, J. C. Bernauer, W. Boeglin, M. Borysova, E. Brash, P. Brindza, W. J. Briscoe, M. Brooks, S. Bueltmann, M. H. S. Bukhari, A. Bylinkin, R. Capobianco, W. -C. Chang, Y. Cheon, K. Chen, K. -F. Chen, K. -Y. Cheng, M. Chiu, T. Chujo, Z. Citron, E. Cline, E. Cohen, T. Cormier, Y. Corrales Morales, C. Cotton, J. Crafts, C. Crawford, S. Creekmore, C. Cuevas, J. Cunningham, G. David, C. T. Dean, M. Demarteau, S. Diehl, N. Doshita, R. Dupre, M. Durham, R. Dzhygadlo, R. Ehlers, L. El Fassi, A. Emmert, R. Ent, C. Fanelli, R. Fatemi, S. Fegan, M. Finger, M. Finger, J. Frantz, M. Friedman, I. Friscic, D. Gangadharan, S. Gardner, K. Gates, F. Geurts, R. Gilman, D. Glazier, E. Glimos, Y. Goto, N. Grau, S. V. Greene, A. Q. Guo, L. Guo, S. K. Ha, J. Haggerty, T. Hayward, X. He, O. Hen, D. W. Higinbotham, M. Hoballah, A. Hoghmrtsyan, P. -H. J. Hsu, G. Huber, A. Hutson, K. Y. Hwang, C. E. Hyde, M. Inaba, T. Iwata, H. S. Jo, K. Joo, N. Kalantarians, G. Kalicy, K. Kawade, S. J. D. Kay, A. Kim, B. Kim, C. Kim, M. Kim, Y. Kim, Y. Kim, E. Kistenev, V. Klimenko, S. H. Ko, I. Korover, W. Korsch, G. Krintiras, S. Kuhn, C. -M. Kuo, T. Kutz, D. Lawrence, S. Lebedev, H. Lee, J. S. H. Lee, S. W. Lee, Y. -J. Lee, W. Li, W. B. Li, X. Li, X. Li, X. Li, X. Li, Y. T. Liang, S. Lim, C. -H. Lin, D. X. Lin, K. Liu, M. X. Liu, K. Livingston, N. Liyanage, W. J. Llope, C. Loizides, E. Long, R. -S. Lu, Z. Lu, W. Lynch, S. Mantry, D. Marchand, M. Marcisovsky, C. Markert, P. Markowitz, H. Marukyan, P. McGaughey, M. Mihovilovic, R. G. Milner, A. Milov, Y. Miyachi, A. Mkrtchyan, P. Monaghan, R. Montgomery, D. Morrison, A. Movsisyan, H. Mkrtchyan, A. Mkrtchyan, M. Murray, K. Nagai, J. Nagle, I. Nakagawa, C. Nattrass, D. Nguyen, S. Niccolai, R. Nouicer, G. Nukazuka, M. Nycz, V. A. Okorokov, S. Oresic, J. D. Osborn, C. O'Shaughnessy, S. Paganis, Z. Papandreou, S. F. Pate, M. Patel, C. Paus, G. Penman, M. G. Perdekamp, D. V. Perepelitsa, H. Periera da Costa, K. Peters, W. Phelps, E. Piasetzky, C. Pinkenburg, I. Prochazka, T. Protzman, M. L. Purschke, J. Putschke, J. R. Pybus, R. Rajput-Ghoshal, J. Rasson, B. Raue, K. F. Read, K. Roed, R. Reed, J. Reinhold, E. L. Renner, J. Richards, C. Riedl, T. Rinn, J. Roche, G. M. Roland, G. Ron, M. Rosati, C. Royon, J. Ryu, S. Salur, R. Santos, M. Sarsour, J. Schambach, A. Schmidt, C. Schwarz, J. Schwiening, R. Seidl, A. Sickles, P. Simmerling, S. Sirca, D. Sharma, Z. Shi, T. -A. Shibata, C. -W. Shih, S. Shimizu, U. Shrestha, K. Slifer, K. Smith, D. Sokhan, R. Soltz, W. Sondheim, J. Song, J. Song, I. I. Strakovsky, P. Steinberg, P. Stepanov, J. Stevens, J. Strube, P. Sun, X. Sun, K. Suresh, V. Tadevosyan, W. -C. Tang, S. Tapia Araya, S. Tarafdar, L. Teodorescu, D. Thomas, A. Timmins, L. Tomasek, N. Trotta, R. Trotta, T. S. Tveter, E. Umaka, A. Usman, H. W. van Hecke, C. van Hulse, J. Velkovska, E. Voutier, P. K. Wang, Q. Wang, Y. Wang, Y. Wang, D. P. Watts, N. Wickramaarachchi, L. Weinstein, M. Williams, C. -P. Wong, L. Wood, M. H. Wood, C. Woody, B. Wyslouch, Z. Xiao, Y. Yamazaki, Y. Yang, Z. Ye, H. D. Yoo, M. Yurov, N. Zachariou, W. A. Zajc, W. Zha, J. -L. Zhang, J. -X. Zhang, Y. Zhang, Y. -X. Zhao, X. Zheng, P. Zhuang

Summary: This article describes the design and performance of the calorimeter systems used in the ECCE detector, aiming to achieve the overall performance specifications while considering the appropriate technical and schedule risks to reduce costs. The calorimeter systems consist of three electromagnetic calorimeters and two hadronic calorimeters, covering a combined range of pseudorapidity from -3.7 to 3.8 and -1.1 < ? < 3.8. Key calorimeter performances, including energy and position resolutions, reconstruction efficiency, and particle identification, will be presented.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT (2023)

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Article Instruments & Instrumentation

The WASA-FRS project at GSI and its perspective

T. R. Saito, P. Achenbach, H. Alibrahim Alfaki, F. Amjad, M. Armstrong, K. H. Behr, J. Benlliure, Z. Brencic, T. Dickel, V. Drozd, S. Dubey, H. Ekawa, S. Escrig, M. Feijoo-Fontan, H. Fujioka, Y. Gao, H. Geissel, F. Goldenbaum, A. Grafia Gonzalez, E. Haettner, M. N. Harakeh, Y. He, H. Heggen, C. Hornung, N. Hubbard, K. Itahashi, M. Iwasaki, N. Kalantar-Nayestanaki, A. Kasagi, M. Kavatsyuk, E. Kazantseva, A. Khreptak, B. Kindler, R. Knoebel, H. Kollmus, D. Kostyleva, S. Kraft-Bermuth, N. Kurz, E. Liu, B. Lommel, V. Metag, S. Minami, D. J. Morrissey, P. Moskal, I. Mukha, A. Muneem, M. Nakagawa, K. Nakazawa, C. Nociforo, H. J. Ong, S. Pietri, J. Pochodzalla, S. Purushothaman, C. Rappold, E. Rocco, J. L. Rodriguez-Sanchez, P. Roy, R. Ruber, S. Schadmand, C. Scheidenberger, P. Schwarz, R. Sekiya, V. Serdyuk, M. Skurzok, B. Streicher, K. Suzuki, B. Szczepanczyk, Y. K. Tanaka, X. Tang, N. Tortorelli, M. Vencelj, H. Wang, T. Weber, H. Weick, M. Will, K. Wimmer, A. Yamamoto, A. Yanai, J. Yoshida, J. Zhao

Summary: A novel technique has been developed to study bound states of exotic hadrons in subatomic nuclei, using the Fragment Separator FRS and the WASA central detector at GSI. Two recent experiments were conducted, S447 for studying light hypernuclei and S490 for searching for mesic-nuclei. Data analyses are currently underway, and clear observations and identifications of light charged particles have been made in both experiments.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS (2023)

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Article Physics, Nuclear

Development of machine learning analyses with graph neural network for the WASA-FRS experiment

H. Ekawa, W. Dou, Y. Gao, Y. He, A. Kasagi, E. Liu, A. Muneem, M. Nakagawa, C. Rappold, N. Saito, T. R. Saito, M. Taki, Y. K. Tanaka, H. Wang, J. Yoshida

Summary: The WASA-FRS experiment aims to reveal the nature of light A hypernuclei with heavy-ion beams. The lifetimes of hypernuclei are measured precisely from their decay lengths and kinematics. In this study, a machine learning analysis method with a graph neural network (GNN) was developed to obtain track associations and accurately identify p(-) mesons emitted from hypernuclear decay. The developed GNN model achieved a 98% tracking efficiency and accurately estimated the charge and momentum of the particles of interest, with a 99.9% identification rate for negative charged particles and a momentum accuracy of 6.3%.

EUROPEAN PHYSICAL JOURNAL A (2023)

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Correction Physics, Nuclear

High-resolution, accurate multiple-reflection time-of-flight mass spectrometry for short-lived, exotic nuclei of a few events in their ground and low-lying isomeric states (vol 99, 064313, 2019)

Samuel Ayet San Andres, Christine Hornung, Jens Ebert, Wolfgang R. Plass, Timo Dickel, Hans Geissel, Christoph Scheidenberger, Julian Bergmann, Florian Greiner, Emma Haettner, Christian Jesch, Wayne Lippert, Israel Mardor, Ivan Miskun, Zygmunt Patyk, Stephane Pietri, Alexander Pihktelev, Sivaji Purushothaman, Moritz P. Reiter, Ann-Kathrin Rink, Helmut Weick, Mikhail I. Yavor, Soumya Bagchi, Volha Charviakova, Paul Constantin, Marcel Diwisch, Andrew Finlay, Satbir Kaur, Ronja Knobel, Johannes Lang, Bo Mei, Iain D. Moore, Jan-Hendrik Otto, Ilkka Pohjalainen, Andrej Prochazka, Christophe Rappold, Maya Takechi, Yoshiki K. Tanaka, John S. Winfield, Xiaodong Xu

PHYSICAL REVIEW C (2023)

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Article Physics, Nuclear

Quantum entanglement in top quark pair production

Mira Varma, Oliver K. Baker

Summary: In this letter, the authors expand upon the previous work to demonstrate the entanglement observed in top quark interactions. They propose that the thermal component caused by proton collisions with top quarks emerges from entanglement within the proton wave function, and they use published results to show the expected behavior.

NUCLEAR PHYSICS A (2024)

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Article Physics, Nuclear

Probing the hidden-bottom pentaquark resonances in photonuclear bottomonium production near threshold: Differential observables

E. Ya. Paryev

Summary: In this study, we investigate the near-threshold meson photoproduction from protons and nuclei and explore the possibility of observing non-strange hidden-bottom pentaquark states through differential observables. We calculate the excitation functions and energy/momentum distributions for different production processes and propose that future experiments at high-luminosity electron-ion colliders could provide evidence for the existence of these hidden-bottom pentaquark resonances.

NUCLEAR PHYSICS A (2024)

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Article Physics, Nuclear

Investigating the influence of input angular momentum on independence hypothesis in heavy-ion induced fusion reactions

M. Shariq Asnain, Manoj Kumar Sharma, Mohd. Shuaib, Aquib Siddique, Ishfaq Majeed Bhat, B. P. Singh, R. Prasad

Summary: This study validates the compound nucleus theory using heavy ion beams and different targets. By analyzing cross section data and comparing reaction cross section data, the study confirms the validity of the theory, but also observes discrepancies at lower excitation energies.

NUCLEAR PHYSICS A (2024)

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Article Physics, Nuclear

Electromagnetic properties of A hypernuclei with a beyond relativistic mean-field approach

Y. G. Yao, X. Y. Wu, H. Mei

Summary: This study presents a microscopic investigation of the electromagnetic properties of the low-lying states of single-A hypernucleus 9ABe using the HyperGCM method based on covariant density functional theory. The results are compared to those of a particle-rotor model (PRM) and show close agreement. It is found that the electric quadrupole transition strengths are more sensitive to the coupling strengths of the AN interaction than the magnetic moments and M 1 transition strengths.

NUCLEAR PHYSICS A (2024)

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