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101. Weak-Strong Uniqueness for Compressible Magnetohydrodynamic Equations with Coulomb Force

Author: Yonghui Zhou and Lianhua He
Subjects: Physics, Kullback–Leibler divergence, Article Subject, Applied Mathematics, QC1-999, 010102 general mathematics, General Physics and Astronomy, 01 natural sciences, 010101 applied mathematics, Coulomb's law, symbols.namesake, Classical mechanics, symbols, Compressibility, Magnetohydrodynamic drive, Uniqueness, 0101 mathematics
Abstract: In this paper, we consider the two-dimensional compressible magnetohydrodynamic system with Coulomb force. We apply the method of relative entropy to establish the weak-strong uniqueness property of this system.
Published: 2021
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102. Continuous-Time Insider Trading with Risk-Neutral Insider under Imperfect Observation

Author: Kai Xiao, Guanglong Zhuang, and Yonghui Zhou
Subjects: Multidisciplinary, General Computer Science, Article Subject, Perfect information, QA75.5-76.95, Insider, Market depth, Complete information, Electronic computers. Computer science, Value (economics), Econometrics, Economics, Insider trading, Asset (economics), Volatility (finance)
Abstract: A model of insider trading in continuous time in which a risk-neutral insider possesses long-lived imperfect information on a risk asset is studied. By conditional expectation theory and filtering theory, we turn it into a model with insider knowing complete information about the asset with a revised risky value and deduce its linear Bayesian equilibrium consisting of optimal insider trading strategy and semistrong pricing rule. It shows that, in the equilibrium, as the degree of insider observing the signal of the risky asset value is more and more accurate, market depth, trading intensity, and residual information are all decreasing and the total expectation profit of the insider is increasing and that the information about the asset value incorporated into the equilibrium price, which has nothing to do with the volatility of noise trades, is increasing as time goes by, but not all information of asset value is incorporated into the price in the final disclosed time due to the incompleteness of insider’s observation, though the market depth is still a time-independent constant. Some simulations are illustrated to show these features. However, it is an open question of how to make maximal profit if the insider is risk-averse.
Published: 2021
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103. Observation of room-temperature amplitude mode in quasi-one-dimensional charge-density-wave material CuTe

Author: Shuyang Wang, Xuliang Chen, Chao An, Ying Zhou, Min Zhang, Yonghui Zhou, Yuyan Han, and Zhaorong Yang
Subjects: Physics and Astronomy (miscellaneous), Condensed Matter::Superconductivity, Condensed Matter::Strongly Correlated Electrons
Abstract: We have performed in-plane electrical transport and polarized Raman spectroscopy measurements on layered material CuTe to characterize the quasi-one-dimensional charge density wave (CDW). Along with the CDW formation below TCDW ∼346 K, the a-axis resistivity shows a huge hump, but the b-axis resistivity exhibits no evident anomaly, manifesting the quasi-one-dimensional character of the CDW. Concomitantly, a rapid rise in positive Hall coefficient is observed due to partial gaping out of the Fermi surface. Based on our Raman scattering measurement, we observe two Raman-active phonon modes in the non-CDW state and, additionally, one collective amplitude mode and four zone-folded modes in the CDW state. The phonon-mode shift with temperature clearly deviates from the expected anharmonic model upon approaching TCDW, suggesting strong electron–phonon coupling in driving the CDW transition. The amplitude mode even survives at room temperature and above, whose evolution can be described by a modified mean-field model, indicating a well-defined CDW order. These results, in addition to the simple formula and easy-to-exfoliate layered structure, promise CuTe as a model system to study the Peierls-like CDW physics and hold great potentials for CDW-based applications.
Published: 2022
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104. Model-Independent Study of Structure in B+→D+D−K+ Decays

Author: L. Calefice, Julian Alexander Boelhauve, Marco Adinolfi, A. Fernandez Prieto, Emmy Gabriel, Benedetto Gianluca Siddi, Jascha Peter Grabowski, V. Shevchenko, Anna Danilina, Cedric Meaux, A. Petrolini, M. Patel, Anastasiia Kharisova, Federico Lazzari, N. K. Watson, S. Eidelman, Kevin Heijhoff, Lorenzo Capriotti, Yiheng Luo, Deepanwita Dutta, Stefano Petrucci, F. Blanc, G. Carboni, D. E. Hutchcroft, Pascal Vincent, Marcel Materok, Rizwaan Adeeb Mohammed, Vitalii Lisovskyi, Simon Stemmle, S. Playfer, Edoardo Franzoso, Frank Ferrari, James Mwangi Kariuki, R. Lefèvre, Marco Petruzzo, G. Graziani, Marian Stahl, David Gascon, Naomi Veronika Raab, Jana Crkovská, J. Lomba Castro, Da Yu Tou, F. Teubert, Igor Skiba, Yang Yang, Ivan Solovyev, W. Baldini, A. Lai, Andrea Mauri, Wenbin Qian, James Vincent Mead, F. Goncalves Abrantes, A. Jawahery, Thomas Peter Jones, Andrea Lampis, B. Fang, G. Valenti, W. Wislicki, C. Santamarina Rios, Titus Mombächer, Thomas Grammatico, Y. Gao, A. Alfonso Albero, G. Wormser, Kenenbek Arzymatov, O. Steinkamp, Guy Wilkinson, P. Vazquez Regueiro, D. De Simone, Viacheslav Matiunin, Yonghui Zhou, Marco Cattaneo, Daniel Vieira, Ming Zeng, Tommaso Pajero, Yawen Wang, Sebastian Neubert, Kuzma Ivshin, Joan Mauricio, Philipp Ibis, Jordy Sebastiaan Butter, Marcin Kucharczyk, Maximilien Chefdeville, M. van Veghel, G. Martellotti, Petr Fedin, Vladimir Chulikov, C. Haen, Artem Maevskiy, C. B. Van Hulse, Oleg Yushchenko, Xiao-yan Li, Olivier Deschamps, Niklas Stefan Nolte, Ying Lu, Mark Wilkinson, Roland Waldi, Razvan Daniel Moise, J. M. Yu, Agnieszka Oblakowska-Mucha, Martina Ferrillo, X. Han, Martha Hilton, F. Archilli, Cynthia Nunez, B. Malecki, M. Pepe Altarelli, Thomas Harrison, Edward James Millard, Marco Gersabeck, M. Vieites Diaz, D. R. Johnson, Maciej Witold Majewski, C. R. Jones, Matthew Scott Rudolph, W. D. Hulsbergen, J. A. Rodriguez Lopez, Sook Hyun Lee, M. J. Bradley, Gary Robertson, Sergey Gromov, Lucian Cojocariu, Mark Smith, M. Tobin, Krzysztof Swientek, Olga Madejczyk, Franco Bedeschi, P. Fernandez Declara, C. Vázquez Sierra, Lucio Anderlini, Chenxi Gu, Ina Carli, Nikita Kazeev, A. Casais Vidal, L. Meyer Garcia, B. Quintana, E. Santovetti, Tatiana Gaintseva, Stephen G. Weber, Richard Lane, Gediminas Sarpis, A. Brossa Gonzalo, P. Gironella Gironell, Tabitha Halewood-leagas, Zishuo Yang, M. Palutan, L. Dieste Maronas, M. O. Bettler, M. R. J. Williams, Naomi Cooke, L. Zhang, S. Ferreres Sole, I. V. Gorelov, K. Müller, Giovanni Bassi, Timon Schmelzer, Timofei Maltsev, J. Serrano, V. Gibson, R. Schwemmer, Mauro Morandin, Zhiyu Xiang, X. Cid Vidal, F. Muheim, John Gordon Smeaton, Guanghua Gong, Christopher John Parkinson, M. Veltri, G. Haefeli, Jennifer Clare Smallwood, L. Calero Diaz, Yuyue Gan, Anatoly Butkevich, Valery Pugatch, Vladimir Romanovskiy, A. Zhelezov, K. Carvalho Akiba, Aleksei Chernov, Xiaofeng Zhu, C. Remon Alepuz, A. Papanestis, Gaia Lanfranchi, A. Grecu, D. Sanchez Gonzalo, N. Tuning, John Matthew Durham, K. E. Kim, Amanda May Donohoe, William Parker, K. De Bruyn, Dana Bobulska, Violaine Bellee, William Dean, Alessandra Gioventù, Andrey Ustyuzhanin, G. Punzi, J. J. Back, M. Rotondo, Serhii Cholak, J. M. Otalora Goicochea, Piera Muzzetto, Wolfgang Funk, Matthew George Chapman, Marko Milovanovic, Emilie Maurice, F. Polci, Loris Martinazzoli, Markus Frank, Ao Xu, Mara Senghi Soares, Jakob Haimberger, J. García Pardiñas, D. Torres Machado, R. Lindner, Elisabeth Maria Niel, Davide Fazzini, Sonia Amina Bouchiba, T. Ruf, Y. Li, R. Silva Coutinho, Ryan Newcombe, Evgenii Shmanin, J. Maratas, Ifan Williams, Sergei Popov, Bernardo Adeva, Lex Marinus Greeven, Renata Kopecna, Andrea Merli, Jakub Ryzka, Timothy Evans, Jacopo Cerasoli, Dmitrii Maisuzenko, Hans Dijkstra, Bhagyashree Pagare, Alessandro Pastore, Zhenzi Wang, Veronica Soelund Kirsebom, Zan Ren, J. H. Lopes, Zhipeng Tang, Adam Dendek, B. Garcia Plana, Anastasia Smetkina, D. Martinez Santos, J. Z. Fan, Wenhua Hu, Y. Zhang, Youen Kang, S. Blusk, Saverio Mariani, Vukan Jevtic, Alessandro Camboni, K. M. Fischer, M.-N. Minard, A. Vorobyev, Marek Jezabek, F. Dordei, Martino Borsato, Mark Whitehead, P. Garcia Moreno, D. Zhang, J. J. Xu, Karlis Dreimanis, R. Calabrese, Sophie Elizabeth Hollitt, Lucas Mcconnell, Tommaso Colombo, Carmen Giugliano, Silvia Borghi, M. Karacson, Qundong Han, Basem Khanji, Y. Xie, Thomas Blake, H. Schindler, Marek Idzik, Thomas Hadavizadeh, Maxim Borisyak, C. Gaspar, Davide Brundu, Jing Wang, Colm Harold Murphy, Resmi P.K, Arnaud Robert, Hannah Louise Pullen, M. Korolev, J. He, Surapat Ek-In, Alex Pearce, C. Patrignani, V. Tisserand, M. Andreotti, Gennady Panshin, M. Poli Lener, M. van Beuzekom, X. Huang, Patrick Owen, Fabrice Desse, Alexander Semennikov, Kevin Heinicke, Fedor Baryshnikov, Christoph Langenbruch, Chung Nguyen-Mau, Kara Renee Mattioli, M. Cruz Torres, Gregory Ciezarek, Marcel Merk, Konrad Klimaszewski, Fidan Suljik, Sara Celani, Aravindhan Venkateswaran, Jia-Jia Qin, Anatoly Konoplyannikov, Scott Ely, Maria Elena Stramaglia, Giulia Frau, Lishuang Ma, C. Chen, M. De Cian, Hongjie Mu, Jonas Rademacker, Jozef Tomasz Borsuk, Stephen M. Stahl, Marie Bachmayer, N. Neufeld, Viacheslav Duk, C. Sanchez Mayordomo, Daniele Marangotto, Feng Jiang, Matthieu Marinangeli, S. J. Chen, Jacopo Pinzino, C. Sanchez Gras, Gianluigi Casse, Angelo Loi, S. Easo, Miroslaw Firlej, R. Santacesaria, Anna Ossowska, Nathan Jurik, Lain-Jong Li, Tamaki Holly Mcgrath, Giovanni Cavallero, Fionn Caitlin Ros Bishop, Stefano Zucchelli, E. Jans, Lauren Emma Yeomans, H. V. Cliff, Anthony Gavin Downes, Sofia Kotriakhova, Jeremy Dalseno, P. Griffith, Daniel Joachim Unverzagt, Srishti Bhasin, Guillaume Pietrzyk, Louis Henry, Paolo Ciambrone, Hilbrand Steffen Kuindersma, Danila Saranin, Tomasz Fiutowski, P. Collins, Y. Sun, Andrii Usachov, M. Rama, F. Fontanelli, Michele Veronesi, Zakariya Aliouche, Federico Alessio, Christoph Hasse, G. Passaleva, Christopher James Pawley, Christopher Burr, D. Vom Bruch, Julien Cogan, Artem Ryzhikov, P. Campana, Hongxi Xing, Nis Meinert, Shudong Zhang, Alison Tully, Michal Kreps, Sergey Strokov, L. M. Garcia Martin, Paolo Carniti, Meril Reboud, B. Jost, M. S. Rangel, Liupan An, R. Matev, B. Rachwal, Victor Egorychev, Alexander Berezhnoy, Hanna Malygina, Mikhail Mikhasenko, Andrea Bizzeti, Sara Sellam, G. Manca, Diego Alejandro Milanes, Paul Seyfert, M. J. Morello, P. Perret, William Barter, Martina Pili, Angelo Carbone, Mika Vesterinen, Ph. Charpentier, O. Schneider, Natalia Polukhina, Qiang Xu, Alexander Malinin, Gerwin Meier, S. Kandybei, J. A. B. Coelho, M. T. Tran, R. McNulty, P. Krokovny, Eduardo Rodrigues, M. Senghi Soares, Sergey Barsuk, M. Xu, Cameron Thomas Dean, B. Souza De Paula, R. Vazquez Gomez, H. W. Van Hecke, Oliver Lantwin, Michal Dziewiecki, Karol Hennessy, N. Valls Canudas, M. Brodski, François Fleuret, Jaap Velthuis, B. Leverington, D. Yang, E. Grauges, M. Chrzaszcz, L. Giubega, A. Oyanguren, T. Kirn, Stephane T'Jampens, Vlad-Mihai Placinta, Jennifer Brigitta Zonneveld, I. A. Monroy, R. Nandakumar, F. Machefert, Tai-hua Lin, Olli Lupton, L. G. Scantlebury Smead, M. Charles, A. B. Rodrigues, P. Alvarez Cartelle, Marco Clemencic, Luyan Sun, Mikkel Bjørn, K. Wyllie, F. A. Garcia Rosales, Lars Eklund, B. Pietrzyk, Mark Slater, Vladislav Belavin, E. Spadaro Norella, Cheryl Pappenheimer, Y. H. Zheng, Eliane Epple, Florian Reiss, S. Malde, Jonas Nathanael Eschle, L. Tomassetti, Adam Szabelski, V. V. Gligorov, C. Marin Benito, Tatiana Ovsiannikova, Nikolai Voropaev, David Anthony Friday, A. Ukleja, Yue Pan, T. J. Gershon, C. J. G. Onderwater, Alexander Inglessi, A. G. Morris, Stefano Cali, George Coombs, E. van Herwijnen, Elena Graverini, T. E. Latham, L. Shekhtman, Maciej Pawel Szymanski, Jiangqiao Hu, A. Dziurda, Elie Aslanides, Roger Forty, Alexander Battig, Xixin Liang, Gabriele Simi, Lukas Witola, Artur Ishteev, C. Parkes, Silvia Gambetta, Ziad Ajaltouni, Valeriia Lukashenko, Arthur Marius Hennequin, Heather Mckenzie Wark, S. Perazzini, M. Franco Sevilla, Dmitry Popov, Simon Akar, E. Ben-Haim, Maxime Schubiger, Anton Philippov, Nicola Serra, H. B. Liu, A. Bay, Abbie Jane Chadwick, Matthieu Kecke, Flavio Pisani, B. T. Meadows, Antonio Pellegrino, Alexey A. Petrov, Joseph David Shupperd, F. Redi, R. Graciani Diaz, Halime Sazak, Andrew Beiter, Alexandre Boyer, Claire Prouve, Neville Harnew, G. Raven, D. Decamp, A. Golutvin, A. F. Campoverde Quezada, E. Polycarpo, Tatsuya Nakada, Marco Guarise, Vladislav Balagura, F. Stagni, Victor Coco, Zhuoming Li, Phoebe Meredith Hamilton, Jan Buytaert, P. Spradlin, Ignacio Bediaga, Desmond Mzamo Shangase, M. D. Sokoloff, U. Marconi, F. F. Wilson, Lingzhu Bian, A. Gomes, Federico Betti, L. A. Granado Cardoso, S. Meloni, Ilia Belov, G. Bencivenni, S. Esen, Wojciech Kucewicz, Gianluca Zunica, Michele Atzeni, G. Mancinelli, Conor Fitzpatrick, Antonino Sergi, T. Boettcher, M. Plo Casasus, Mateusz Goncerz, Barbara Sciascia, Stephanie Schulte, Sergey Didenko, Simone Bifani, S. Farry, W. Huang, M. Mukherjee, Ryan Calladine, Plamen Hristov Hopchev, Francesco Dettori, A. Brea Rodriguez, Dmitrii Ilin, Yanting Fan, Maria Flavia Cicala, Petr Andreevich Gorbounov, Jordan Daniel Roth, Michele Piero Blago, Hossein Afsharnia, G. Liu, Marco Santimaria, D. Websdale, B. Couturier, R. A. Fini, Daniel Berninghoff, A. Falabella, M. Sarpis, Biagio Saitta, Stanislav Luchuk, L. R. Madhan Mohan, Lesya Shchutska, D. Campora Perez, Moran Wang, Carmelo D'Ambrosio, Jean François Marchand, V. Kudryavtsev, D. R. Ward, Oleg Stenyakin, S. Tolk, Donal Murray, E. Cogneras, Emilie Bertholet, Peilian Li, Xiao-Rui Lyu, E. Dall’Occo, E. Golobardes, Jonathan Plews, R. Currie, C. Abellán Beteta, S. Capelli, P. De Simone, S. Hansmann-Menzemer, Gerd Joachim Kunde, A. Schopper, L. De Paula, Baasansuren Batsukh, Zhihong Shen, S. Schael, Marianna Fontana, Luca Minzoni, Dylan Jaide White, Michela Garau, S. A. Wotton, Patrick Robbe, P. Baladron Rodriguez, John Jake Lane, K. Petridis, Serhii Koliiev, Rudolf Oldeman, C. A. Aidala, L. Del Buono, Roman Litvinov, Ilaria Neri, F. J. P. Soler, Niladribihari Sahoo, A. Tsaregorodtsev, Oleksander Kot, Xia-Ji Liu, Sheldon Stone, S. C. Haines, A. Hicheur, Felix Johannes Kress, Shantam Taneja, B. Spaan, J. Closier, A. Massafferri, Philipp Roloff, Alexandra Paige Rollings, John Leslie Cobbledick, Roel Aaij, Vadym Denysenko, M. De Serio, D. Lacarrere, C. L. Da Silva, R. Mountain, Claudia Bertella, Murdo Traill, Rui Wang, Aleksandra Snoch, S. Vecchi, Quentin Fuehring, Phillip John Marshall, A. Gallas Torreira, Wojciech Krzemien, Tobias Tekampe, M. McCann, Carina Trippl, Dawid Gerstel, Eluned Smith, Hangyi Wu, Lucia Grillo, Aleksandr Solovev, C. Matteuzzi, Andreas Güth, Margarete Schellenberg, Peter Svihra, T. D. Nguyen, T. Lesiak, C. A. Chavez Barajas, A. McNab, Roland Bernet, Ross John Hunter, Alessio Piucci, Holger Stevens, Hang Yin, O. Boente Garcia, Robbert Erik Geertsema, Evelina Gersabeck, Barbara Passalacqua, Samuel Belin, Mauro Piccini, Benjamin Audurier, Malte Hecker, Denis Derkach, F. Ferreira Rodrigues, Renato Quagliani, Dmitrii Pereima, Fedor Ratnikov, Yasmine Amhis, Gabriela Johanna Pomery, Michael Becker, Dmitry Golubkov, Matteo Giovannetti, Alexander D. Popov, Alexey Boldyrev, M. H. Schune, C. Göbel, O. Maev, Giulia Tuci, Abhijit Mathad, Almagul Kondybayeva, A. Romero Vidal, Constantin Weisser, Sergey Legotin, D. Hynds, D. Galli, Marina Artuso, Salvatore Aiola, Philip Ilten, L. Garrido, H. Li, Tomasz Skwarnicki, Davide Zuliani, Patrick Mackowiak, U. Uwer, Sebastian Bachmann, V. Obraztsov, Jakub Moron, Sergei Kholodenko, Kodassery Prasanth, Hans Dembinski, Roberta Cardinale, Roberto Ribatti, M. Shapkin, Floris Keizer, D. Pinci, Jihyun Bhom, Mariia Poliakova, E. Vilella Figueras, L. Ferreira Lopes, Simon Baker, M. Lucio Martinez, Stephan Eisenhardt, Liliana Congedo, F. L. Souza De Almeida, Brij Kishor Jashal, Lorenzo Pica, Pavol Stefko, A. Palano, Tomasz Szumlak, Lukas Gruber, R. Le Gac, V. Franco Lima, Alexandru Ene, E. Thomas, Ivan Polyakov, F. Maciuc, Tara Shears, S.-G. Chitic, Adam Benjamin Morris, J. A. de Vries, Georgios Chatzikonstantinidis, S. Filippov, Samuel Maddrell-Mander, P. Naik, Mauricio Féo, R. Jacobsson, Rafal Dominik Krawczyk, P. Gandini, Matthew James Tilley, Matteo Bartolini, Nathanael Farley, M. Witek, M. Needham, Matthew Birch, Igor Kostiuk, L. Kravchuk, Alessandro Cardini, Chishuai Wang, J. M. De Miranda, Anton Poluektov, Lorenzo Sestini, E. Govorkova, Harald Viemann, Alexander Leflat, M. Mulder, A. Bursche, S. Ricciardi, V. Vorobyev, M. Romero Lamas, M. Ferro-Luzzi, I. Longstaff, L. L. Pappalardo, P. Camargo Magalhaes, Adam Davis, Aleksei Andreianov, N. Sagidova, O. Zenaiev, F. Martinez Vidal, Tjeerd Ketel, R. I. Rabadan Trejo, Sune Jakobsen, Konstantin Gizdov, Wiktor Byczynski, M. Martinelli, J. Baptista Leite, Ouail Kitouni, Johannes Albrecht, Dominik Stefan Mitzel, Gianfranco Morello, Pawel Kopciewicz, Claudio Gotti, Blaise Delaney, Laura Promberger, Christoph Frei, P. Billoir, Malcolm John, M. Gandelman, Victor Renaudin, Pietro Marino, M. Schmelling, J. Fu, Sandra Amato, A. Bondar, Vladimir Macko, I. Nasteva, Dominik Müller, V. Vagnoni, Yury Guz, Alessio Sarti, M. Fiorini, E. Gushchin, Andrea Valassi, Tara Nanut, K. Belous, Jolanta Brodzicka, Dong Xiao, Biljana Mitreska, Matthew Kenzie, Zehua Xu, Daria Strekalina, E. Luppi, A. Bertolin, Shuaiyi Liu, Mark Hatch, Xavier Vilasis-Cardona, Laurent Dufour, Nicola Neri, C. M. Costa Sobral, Johannes Heuel, Sara Elizabeth Mitchell, A. Dovbnya, J. J. Walsh, Davide Lancierini, Daniel Patrick O'Hanlon, Z. Mathe, Veronika Chobanova, Nikolay Bondar, Jan Langer, M. Pappagallo, Ph. Ghez, A. Sciubba, Paul Andre Günther, O. De Aguiar Francisco, Miroslav Saur, Tengiz Kvaratskheliya, Paul Nathaniel Swallow, A. Lusiani, B. R. Gruberg Cazon, J. Marks, Antje Mödden, M. Straticiuc, Yuezhe Yao, Huacheng Cai, G. D. Lafferty, T. Gys, Ivan Shchemerov, Preema Rennee Pais, Ekaterina Trifonova, l. Soares Lavra, P. Di Nezza, S. Klaver, J. J. Saborido Silva, Anna Lupato, S. Monteil, George Holger Lovell, R. Manera Escalero, Manuel Schiller, Lauren Douglas, Biplab Dey, Serena Maccolini, Wojciech Krupa, Alexsei Chubykin, Simon Nieswand, Annarita Buonaura, Valery Zhukov, J. M. Fernandez-tenllado Arribas, S. Simone, Christopher Betancourt, A. Satta, Ulrik Egede, Svende Braun, C. Satriano, A. Contu, Olivier Leroy, Polina Kravchenko, Harris Conan Bernstein, C. Bozzi, A. Puig Navarro, R. J. Barlow, E. L. Gkougkousis, Marta Calvi, B. Schmidt, Ivan Belyaev, Jan-Marc Basels, A. Artamonov, Michal Kazimierz Mazurek, D. Wiedner, A. Dzyuba, Guillermo Loustau, D. Hill, Li Xu, S. De Capua, Ia. Bezshyiko, Nikolay Nikitin, S. Gomez Fernandez, Daniel Stephen Richards, D. Savrina, Philippe d'Argent, P. E. L. Clarke, Sebastien Ponce, Kayleigh Anne Thomson, Daniele Manuzzi, A. C. dos Reis, G. Alkhazov, Mikhail Hushchyn, Xuhao Yuan, Jiayin Sun, Sophie Katharina Kretzschmar, M. Calvo Gomez, Maciej Wojciech Dudek, E. B. Shields, G. Corti, Martin Stefan Bieker, Daniel Charles Craik, M. Ramos Pernas, P. Durante, Giacomo Vitali, Louis Lenard Gerken, Stephan Escher, Patrick Koppenburg, B. D. C. Westhenry, Sandro Cadeddu, D. Melnychuk, X. J. Zhou, Thomas Ackernley, A. Vollhardt, Kristian Alexander Zarebski, Michael Alexander, D. Lucchesi, Thomas Henry Hancock, Alex Seuthe, Mark Richard James Williams, Mikhail Zavertyaev, Nicola Skidmore, Vasyl Dobishuk, Themistocles Bowcock, Stanislav Poslavskii, David Gerick, J. Ruiz Vidal, Kurt Rinnert, Milosz Zdybal, and Alexander Vagner
Subjects: Physics, Particle physics, Large Hadron Collider, 0103 physical sciences, Structure (category theory), General Physics and Astronomy, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, 01 natural sciences, Luminosity
Abstract: The only anticipated resonant contributions to $B^+\to D^+D^-K^+$ decays are charmonium states in the $D^+D^-$ channel. A model-independent analysis, using LHCb proton-proton collision data taken at centre-of-mass energies of $\sqrt{s}=7,8,$ and $13$ TeV, corresponding to a total integrated luminosity of 9 fb$^{-1}$, is carried out to test this hypothesis. The description of the data assuming that resonances only manifest in decays to the $D^+D^-$ pair is shown to be incomplete. This constitutes evidence for a new contribution to the decay, potentially one or more new charm-strange resonances in the $D^-K^+$ channel with masses around 2.9 GeV$/c^2$.
Published: 2020
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105. Pressure tuning of superconductivity in Mo8Ga41 single crystals

Author: Chao An, Zhaorong Yang, Xuliang Chen, Yonghui Zhou, Chunhua Chen, Zhitao Zhang, Ying Zhou, Wenbin Wu, and Lili Zhang
Subjects: Strongly coupled, Superconductivity, Diffraction, Physics, Condensed matter physics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Amorphous phase, Amorphous solid, Pairing, 0103 physical sciences, Pressure tuning, Cooper pair, 010306 general physics, 0210 nano-technology
Abstract: We report on pressure tuning of superconductivity in a strongly coupled superconductor ${\mathrm{Mo}}_{8}{\mathrm{Ga}}_{41}$ with a critical temperature ${T}_{c}\ensuremath{\sim}9.8\phantom{\rule{0.16em}{0ex}}\mathrm{K}$. Resistance measurements show that ${T}_{c}$ is suppressed to 3.6 K at 19 GPa followed by a nonmonotonic variation at higher pressures. Synchrotron x-ray diffraction experiments reveal an amorphization taking place at the critical pressure ${P}_{c}\ensuremath{\sim}19\phantom{\rule{0.16em}{0ex}}\mathrm{GPa}$. As comparing with $\mathrm{Mg}{\mathrm{B}}_{2}$, the ${\mathrm{Mo}}_{8}{\mathrm{Ga}}_{41}$ shows a relative low decreasing rate of ${T}_{c}$, which might be attributed to its unique vertex-sharing type of cluster architecture. Survival of superconductivity across the crystalline to amorphous transition indicates that, although long-range structural order of endohedral Ga clusters is destroyed, short-range-ordered intracluster structure still exists and allows for local Cooper pairing. Due to presence of disorders in the amorphous phase, establishment of Cooper pair coherence is shifted to lower temperatures, which causes unusual transport behaviors near ${T}_{c}$, e.g., the anomalous resistance peak and dip. The amorphous superconducting phase is able to be retained to ambient pressure and therefore provides an ideal platform to study disorder effects on superconductivity.
Published: 2020
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106. Measurement of CP -Averaged Observables in the B0→K*0μ+μ− Decay

Author: V. Franco Lima, J. A. de Vries, Matthew James Tilley, Lucian Cojocariu, Mark Smith, A. Bertolin, K. Wyllie, B. Pietrzyk, Nathanael Farley, M. Witek, Aleksei Chernov, Tommaso Colombo, Cheryl Pappenheimer, K. E. Kim, William Parker, M. Needham, M. Merk, R. Silva Coutinho, Ryan Newcombe, F. Polci, Y. H. Zheng, S. Eidelman, Mick Mulder, H. F. Schreiner, G. Valenti, C. J. G. Onderwater, Basem Khanji, Y. Xie, Alexander Inglessi, D. Torres Machado, Evgenii Shmanin, Jakub Ryzka, Robert Hart, Timothy Evans, Thomas Blake, H. Schindler, Alessandro Pastore, Zhenzi Wang, Marek Idzik, Veronica Soelund Kirsebom, F. Blanc, Elena Graverini, Ph. Charpentier, C. Marin Benito, Dmitry Popov, Thomas Hadavizadeh, Johannes Albrecht, Davide Brundu, Simon Akar, Colm Harold Murphy, Arnaud Robert, Carmen Giugliano, Silvia Borghi, M. Karacson, Alexander Malinin, R. Lefèvre, Kuzma Ivshin, C. Patrignani, Markus Roehrken, Qundong Han, V. Tisserand, Giovanni Cavallero, Louis Henry, Hilbrand Steffen Kuindersma, J. H. Lopes, Zhipeng Tang, M. van Beuzekom, Scott Ely, Maria Elena Stramaglia, G. Graziani, Wenhua Hu, Y. Zhang, A. Bay, S. Blusk, Saverio Mariani, Z. Xu, Y. Gao, A. Alfonso Albero, Vukan Jevtic, O. V. Mineev, S. Esen, Alessandro Camboni, K. M. Fischer, Wojciech Kucewicz, Fedor Baryshnikov, Stefano Zucchelli, Malcolm John, Chung Nguyen-Mau, P. Naik, David Gascon, Philipp Ibis, Matthew Kelsey, A. Petrolini, Marco Petruzzo, Gregory Ciezarek, Mauricio Féo, Tomasz Fiutowski, Daniel Vieira, M. Gandelman, Jeremy Dalseno, Kevin Heijhoff, Lorenzo Capriotti, Vladislav Balagura, J. Lomba Castro, P. Vazquez Regueiro, G. Wormser, Vladimir Chulikov, Marian Stahl, A. B. Rodrigues, Viacheslav Matiunin, B. T. Meadows, Lars Eklund, Jordy Sebastiaan Butter, A. Di Canto, Naomi Veronika Raab, P. Collins, Y. Sun, P. Griffith, Paolo Ciambrone, Pietro Marino, M. Schmelling, Petr Andreevich Gorbounov, Ziad Ajaltouni, Christoph Langenbruch, Gianluigi Casse, Mikhail Mikhasenko, Andrea Bizzeti, Angelo Loi, Jonathan Plews, Vladimir Macko, P. De Simone, Gerwin Meier, B. Spaan, J. Closier, A. Massafferri, C. Chen, Yonghui Zhou, Marco Cattaneo, Roel Aaij, Jana Crkovská, Vadym Denysenko, Dong Xiao, Guido Andreassi, Marco Santimaria, David Anthony Friday, Stefano Cali, George Coombs, A. Jawahery, Marcin Kucharczyk, Maximilien Chefdeville, G. Raven, D. Decamp, A. Golutvin, Darya Savrina, Tatiana Ovsiannikova, Arthur Marius Hennequin, S. Kandybei, J. A. B. Coelho, C. Vázquez Sierra, P. Spradlin, S. Ogilvy, Da Yu Tou, F. Teubert, T. Kirn, E. Gushchin, Heather Mckenzie Wark, I. Nasteva, C. Sanchez Mayordomo, E. Jans, Michele Piero Blago, Srishti Bhasin, A. Casais Vidal, R. Currie, Carmelo D'Ambrosio, Jean François Marchand, Agnieszka Oblakowska-Mucha, H. V. Cliff, Ming Zeng, Tommaso Pajero, R. Cenci, M. De Cian, M. Rama, F. Fontanelli, Michele Veronesi, Biplab Dey, Serena Maccolini, Yawen Wang, Alexsei Chubykin, Oleg Stenyakin, Federico Alessio, Sook Hyun Lee, S. Hansmann-Menzemer, M. S. Rangel, Gerd Joachim Kunde, Liupan An, R. Vazquez Gomez, F. F. Wilson, N. Neri, A. Gomes, Federico Betti, A. Büchler-Germann, Chenxi Gu, S. Meloni, L. A. Granado Cardoso, D. R. Johnson, Harris Conan Bernstein, Sebastian Neubert, A. Dziurda, R. Graciani Diaz, B. Quintana, Andreas Güth, C. Bozzi, Martina Ferrillo, Alex Seuthe, A. Schopper, Maria Flavia Cicala, Oleksander Kot, M. Vieites Diaz, C. Fitzpatrick, Mika Vesterinen, W. Baldini, Razvan Daniel Moise, C. A. Aidala, G. Punzi, Margarete Schellenberg, Peter Svihra, T. D. Nguyen, Lucio Anderlini, L. Del Buono, R. Mountain, Diego Alejandro Milanes, Jakub Moron, Maciej Witold Majewski, C. R. Jones, Matthew Scott Rudolph, Gennady Panshin, M. Poli Lener, Claire Prouve, Neville Harnew, K. Carvalho Akiba, M. Andreotti, M. J. Morello, P. Perret, Sergey Barsuk, Oliver Lantwin, Aleksandr Petrov, A. Puig Navarro, E. Santovetti, Tatiana Gaintseva, Margarita Stepanova, Kodassery Prasanth, Martha Hilton, F. Archilli, M. Tobin, Mark Richard James Williams, J. M. Yu, Marco Adinolfi, Cynthia Nunez, Qiang Xu, G. Carboni, M. T. Tran, C. Haen, Mikhail Zavertyaev, Nikita Kazeev, John Matthew Durham, A. Dovbnya, R. Santacesaria, N. Sagidova, A. Fernandez Prieto, Emmy Gabriel, Fabrice Desse, Benedetto Gianluca Siddi, Krzysztof Swientek, Yuezhe Yao, Huacheng Cai, François Fleuret, Lain-Jong Li, Nicola Skidmore, Vasyl Dobishuk, B. Leverington, M. Chrzaszcz, T. Lesiak, V. Belavin, Murdo Traill, L. Giubega, A. Oyanguren, D. E. Hutchcroft, X. Han, I. A. Monroy, Davide Fazzini, J. J. Walsh, Davide Lancierini, Franco Bedeschi, E. Tournefier, Stanislav Poslavskii, Stephane T'Jampens, Ina Carli, Artem Maevskiy, Jascha Peter Grabowski, Vlad-Mihai Placinta, C. B. Van Hulse, B. Malecki, V. Chekalina, Oleg Yushchenko, Marcel Materok, O. Maev, Konrad Klimaszewski, Marta Calvi, Andreas Weiden, J. Maratas, Ifan Williams, R. Nandakumar, L. Garrido, V. Shevchenko, J. V. Viana Barbosa, Yu. Guz, G. Alkhazov, Yiheng Luo, Ekaterina Trifonova, William Barter, Martina Pili, Thomas N. Williams, Francesco Dettori, Daniel Patrick O'Hanlon, l. Soares Lavra, P. Fernandez Declara, K. De Bruyn, David Gerick, S. Sellam, J. Ruiz Vidal, Deepanwita Dutta, Andrea Merli, Jennifer Brigitta Zonneveld, V. V. Gligorov, Abhijit Mathad, Kurt Rinnert, Xiaofeng Zhu, C. Remon Alepuz, A. Papanestis, M. J. Bradley, Tomasz Skwarnicki, A. Grecu, T. J. V. Bowcock, Anatoly Konoplyannikov, Angelo Carbone, Jaap Velthuis, Zishuo Yang, Hans Dembinski, M. Palutan, M. Ramos Pernas, Jacopo Cerasoli, M. Pepe Altarelli, Gediminas Sarpis, Thomas Harrison, Timon Schmelzer, Edward James Millard, Marco Gersabeck, Mikhail Hushchyn, Julien Cogan, M. O. Bettler, Xuhao Yuan, Simon Nieswand, Jiayin Sun, L. Zhang, M. Brodski, S.-G. Chitic, Adam Benjamin Morris, Vitalii Lisovskyi, Annarita Buonaura, Valery Zhukov, Dmitrii Maisuzenko, Stefano Petrucci, Renato Quagliani, T. J. Gershon, Anna Lupato, A. Falabella, M. Sarpis, Milosz Zdybal, Hans Dijkstra, Sebastian Bachmann, Markus Frank, Andrey Ustyuzhanin, Georgios Chatzikonstantinidis, Samuel Maddrell-Mander, Sophie Katharina Kretzschmar, M. Calvo Gomez, A. A. Alves, Bernardo Adeva, Samuel Coquereau, S. Monteil, G. Wilkinson, Dana Bobulska, Hangyi Wu, Biagio Saitta, Paul Andre Günther, S. Simone, Elie Aslanides, Guillaume Pietrzyk, Maxim Borisyak, Mark Slater, Varvara Batozskaya, N. Tuning, Violaine Bellee, William Dean, I. V. Gorelov, K. Müller, Giovanni Bassi, Kenenbek Arzymatov, Christopher Betancourt, S. Ferreres Sole, C. Göbel, Maciej Wojciech Dudek, R. Matev, George Holger Lovell, R. Manera Escalero, B. Rachwal, Victor Egorychev, G. Corti, Pavol Stefko, Martin Stefan Bieker, Alessandra Gioventù, Florian Reiss, S. Malde, Jonas Nathanael Eschle, S. Perazzini, M. Franco Sevilla, P. Durante, Giacomo Vitali, A. Bursche, Daniel Charles Craik, J. J. Xu, Stephan Escher, Patrick Koppenburg, Alexander Vagner, Anna Danilina, Karlis Dreimanis, A. F. Campoverde Quezada, E. Ben-Haim, R. Calabrese, P. Gandini, Luca Pescatore, V. Obraztsov, A. Satta, David Loh, Andrii Usachov, Marco Pappagallo, Eliane Epple, M. Rotondo, Serhii Cholak, Renata Kopecna, V. Gibson, Serhii Koliiev, Nikolai Voropaev, Dmitrii Pereima, Manuel Schiller, Emma Buchanan, R. McNulty, Hongjie Mu, P. Krokovny, Lauren Douglas, Adam Davis, S. Ricciardi, Fedor Ratnikov, Ulrik Egede, Cedric Meaux, M. Lucio Martinez, Stephan Eisenhardt, B. D. C. Westhenry, Sandro Cadeddu, L. Shekhtman, Maciej Pawel Szymanski, Jiangqiao Hu, Maxime Schubiger, Christoph Frei, Igor Skiba, Eduardo Rodrigues, Marianna Fontana, Alexandra Paige Rollings, John Leslie Cobbledick, John Back, G. Simi, G. Passaleva, Svende Braun, Paul Seyfert, Xixin Liang, Matthieu Kecke, D. Hill, Victor Renaudin, P. Alvarez Cartelle, Michal Dziewiecki, Ignacio Bediaga, Desmond Mzamo Shangase, Christopher Burr, Wojciech Krupa, T. Ruf, Y. Li, A. Lai, Andrea Mauri, Simon Stemmle, Wenbin Qian, Joseph David Shupperd, D. Melnychuk, X. J. Zhou, S. Farry, J. M. Otalora Goicochea, Piera Muzzetto, Hannah Louise Pullen, Wolfgang Funk, Li Xu, M. Korolev, J. He, Surapat Ek-In, Thomas Ackernley, R. Schwemmer, Tai-hua Lin, Sandra Amato, A. Bondar, D. Vom Bruch, Salvatore Aiola, Philip Ilten, C. Satriano, S. Playfer, Naomi Cooke, O. Steinkamp, O. De Aguiar Francisco, Adalberto Sciubba, Olli Lupton, Andrea Mogini, K. Belous, S. De Capua, Jolanta Brodzicka, Biljana Mitreska, Matthew George Chapman, G. Lanfranchi, M.-N. Minard, Jonas Rademacker, A. Contu, Victor Coco, S. Easo, G. D. Lafferty, Miroslaw Firlej, Lauren Emma Yeomans, P. Campana, Hongxi Xing, Ia. Bezshyiko, Nikolay Nikitin, A. Vollhardt, Emilie Maurice, Patrick Robbe, Kristian Alexander Zarebski, Michael Alexander, Thomas Henry Hancock, Patrick Owen, Olivier Leroy, E. Grauges, Roberta Cardinale, Martino Borsato, E. van Herwijnen, A. Vorobyev, Barbara Sciascia, Zhuoming Li, Ivan Polyakov, Loris Martinazzoli, Daniel Stephen Richards, Jozef Tomasz Borsuk, Laurent Dufour, M. Dorigo, Quentin Fuehring, Paolo Carniti, Alexander Semennikov, Frank Ferrari, F. Dordei, Meril Reboud, Stephen M. Stahl, James Mwangi Kariuki, D. Zhang, Zhiyu Xiang, Nicola Serra, N. Neufeld, Philippe d'Argent, Jordan Daniel Roth, W. Huang, Alexander Berezhnoy, Ao Xu, Mara Senghi Soares, J. García Pardiñas, R. Lindner, P. E. L. Clarke, X. Cid Vidal, F. Muheim, John Gordon Smeaton, L. Ferreira Lopes, Phillip John Marshall, F. Maciuc, Wojciech Krzemien, M. Shapkin, Elisabeth Maria Niel, M. Mukherjee, Hossein Afsharnia, M. R. J. Williams, E. Spadaro Norella, Alexandru Ene, E. Thomas, Sebastien Ponce, Andrew Beiter, Sofia Kotriakhova, C. Hasse, B. Schmidt, Sara Celani, M. Veltri, G. Haefeli, Kayleigh Anne Thomson, D. Campora Perez, Cameron Thomas Dean, B. Souza De Paula, Daniele Manuzzi, A. C. dos Reis, L. Calero Diaz, Yuyue Gan, Anatoly Butkevich, Ivan Belyaev, U. Marconi, A. G. Morris, Federico Cindolo, Evelina Gersabeck, Roger Forty, V. Kudryavtsev, D. R. Ward, Brij Kishor Jashal, A. Palano, Tomasz Szumlak, Adam Dendek, B. Garcia Plana, Anastasia Smetkina, Alexander Battig, Kevin Heinicke, Daniel Berninghoff, S. Filippov, Samuel Belin, Aravindhan Venkateswaran, Jia-Jia Qin, Jan-Marc Basels, A. Artamonov, Donal Murray, Kara Renee Mattioli, M. Cruz Torres, C. Gaspar, Jing Wang, Sara Elizabeth Mitchell, Andrew Crocombe, Z. Mathe, Veronika Chobanova, Valery Pugatch, Benjamin Audurier, Denis Derkach, G. Mancinelli, L. De Paula, Baasansuren Batsukh, C. Parkes, Silvia Gambetta, F. Ferreira Rodrigues, S. Gallorini, D. Martinez Santos, J. Z. Fan, Lukas Witola, Antonino Sergi, Felix Johannes Kress, Shantam Taneja, T. Boettcher, A. Brea Rodriguez, Mark Whitehead, V. Vorobyev, M. Romero Lamas, M. Ferro-Luzzi, L. L. Pappalardo, P. Camargo Magalhaes, G. Manca, O. Schneider, Yanting Fan, Natalia Polukhina, S. Tolk, Giulia Tuci, Alex Pearce, Matteo Bartolini, Pietro Albicocco, T. E. Latham, L. Kravchuk, Roman Greim, Vladimir Romanovskiy, A. Zhelezov, Luca Minzoni, Dylan Jaide White, Lucas Mcconnell, F. J. P. Soler, R. Jacobsson, Rafal Dominik Krawczyk, D. Websdale, Mark Hatch, S. C. Haines, L. M. Garcia Martin, B. Couturier, R. A. Fini, M. Xu, Claudia Bertella, Arseniy Vitkovskiy, Aleksandra Snoch, D. Wiedner, A. Romero Vidal, Daniele Marangotto, Karol Hennessy, Constantin Weisser, Miroslav Saur, Alexey Boldyrev, Iwan Thomas Smith, C. M. Costa Sobral, A. Hicheur, S. Vecchi, F. Stagni, M. De Serio, D. Lacarrere, C. L. Da Silva, Johannes Heuel, Thibaud Humair, M. McCann, Sebastian Schulte, R. I. Rabadan Trejo, L. G. Scantlebury Smead, C. Abellán Beteta, Carina Trippl, Lucia Grillo, C. Matteuzzi, A. Lusiani, M. Charles, S. Schael, A. Dzyuba, Artem Ryzhikov, Nis Meinert, Alessio Piucci, Shudong Zhang, Alison Tully, Michal Kreps, Sergey Strokov, Francesca M. Pisani, Phoebe Meredith Hamilton, Sergey Didenko, Jan Buytaert, Guillermo Loustau, A. McNab, Holger Stevens, Hang Yin, Roland Bernet, Nikolay Bondar, Sune Jakobsen, Niladribihari Sahoo, A. Tsaregorodtsev, Yasmine Amhis, Xia-Ji Liu, Frederic Machefert, Sheldon Stone, Alessandro Cardini, J. M. De Miranda, B. Jost, Hanna Malygina, Simone Bifani, T. Gys, O. Boente Garcia, Gabriela Johanna Pomery, H. Li, Ph. Ghez, J. D. Osborn, M. Morandin, M. Plo Casasus, P. Di Nezza, S. Klaver, Alexander D. Popov, Tengiz Kvaratskheliya, J. J. Saborido Silva, B. R. Gruberg Cazon, J. Marks, Antje Mödden, M. Straticiuc, H. W. Van Hecke, Ross John Hunter, Marco Clemencic, Luyan Sun, Mikkel Bjørn, F. A. Garcia Rosales, Michael Becker, Dmitry Golubkov, Tara Shears, U. Uwer, L. Silva de Oliveira, Anton Poluektov, Lorenzo Sestini, Ryan Calladine, Dominik Stefan Mitzel, Gianfranco Morello, Preema Rennee Pais, Pawel Kopciewicz, Claudio Gotti, Plamen Hristov Hopchev, E. Govorkova, Harald Viemann, Dominik Müller, V. Bocci, Patrick Mackowiak, Alexander Leflat, L. R. Madhan Mohan, Lesya Shchutska, Floris Keizer, D. Pinci, Jihyun Bhom, Mariia Poliakova, Roger Barlow, Igor Kostiuk, Blaise Delaney, Simon Baker, L. Tomassetti, E. Cogneras, Adam Szabelski, A. Ukleja, Laura Promberger, E. Dall’Occo, Antonio Pellegrino, S. A. Wotton, John Jake Lane, F. Redi, E. Polycarpo, Tatsuya Nakada, Rudolf Oldeman, Konstantin Gizdov, Wiktor Byczynski, G. Bencivenni, Alessio Sarti, M. Martinelli, M. Fiorini, S. Stracka, V. Vagnoni, E. Luppi, A. Gallas Torreira, Michele Atzeni, G. Liu, Moran Wang, P. Billoir, Ying Lu, Mark Wilkinson, Roland Waldi, Timofei Maltsev, J. Serrano, Zan Ren, Feng Jiang, Matthieu Marinangeli, S. J. Chen, Jacopo Pinzino, Wen Chao Zhang, C. Sanchez Gras, Anna Ossowska, Nathan Jurik, D. Lucchesi, M. Patel, Anastasiia Kharisova, Michael Sokoloff, Federico Lazzari, N. K. Watson, Marie Helene Schune, James Vincent Mead, Sean Benson, Emilie Bertholet, Xiao-Rui Lyu, Xiao-yan Li, Olivier Deschamps, Niklas Stefan Nolte, Alexander Baranov, Tobias Tekampe, Dawid Gerstel, Eluned Smith, I. Longstaff, Sophie Richards, Malte Hecker, Almagul Kondybayeva, D. Hynds, D. Galli, F. Martinez Vidal, Marina Artuso, W. Wislicki, Tjeerd Ketel, C. Santamarina Rios, Titus Mombächer, Thomas Grammatico, J. Fu, M. van Veghel, G. Martellotti, Petr Fedin, Andrea Valassi, Tara Nanut, W. D. Hulsbergen, Konstantinos Petridis, J. A. Rodriguez Lopez, A. Brossa Gonzalo, Matthew Kenzie, P. Gironella Gironell, Xavier Vilasis-Cardona, Lukas Gruber, and R. Le Gac
Subjects: Physics, Particle physics, Large Hadron Collider, Muon, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), General Physics and Astronomy, Observable, 01 natural sciences, Luminosity, Standard Model, Angular distribution, 0103 physical sciences, Invariant mass, 010306 general physics
Abstract: An angular analysis of the B^{0}→K^{*0}(→K^{+}π^{-})μ^{+}μ^{-} decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb^{-1} of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the K^{+}π^{-} system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters.
Published: 2020
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107. Observation of New Ξc0 Baryons Decaying to Λc+K−

Author: S. Vecchi, Alessio Piucci, Carmelo D'Ambrosio, Jean François Marchand, Yasmine Amhis, Gabriela Johanna Pomery, M. Morandin, Markus Frank, Alexey Boldyrev, J. J. Xu, Karlis Dreimanis, R. Calabrese, Alexander Semennikov, S. Esen, Kevin Heinicke, Kara Renee Mattioli, M. Cruz Torres, U. Uwer, Oleg Stenyakin, C. Marin Benito, Mika Vesterinen, Wojciech Kucewicz, Samuel Belin, Arseniy Vitkovskiy, P. Durante, Margarita Stepanova, I. Longstaff, F. Martinez Vidal, Marco Adinolfi, Tjeerd Ketel, Dmitry Popov, Simon Akar, A. Bay, A. Fernandez Prieto, C. A. Aidala, L. Del Buono, Emilie Bertholet, Emmy Gabriel, Xiao-Rui Lyu, Hannah Louise Pullen, M. Korolev, J. He, Surapat Ek-In, S. Easo, Miroslaw Firlej, G. Valenti, Kuzma Ivshin, Benedetto Gianluca Siddi, Jonas Rademacker, Jascha Peter Grabowski, V. Shevchenko, A. Romero Vidal, Constantin Weisser, S. Eidelman, Christopher Burr, Mick Mulder, L. Tomassetti, Marco Santimaria, R. Currie, S. Hansmann-Menzemer, H. Li, Philipp Ibis, Adam Szabelski, A. Ukleja, Antonio Pellegrino, Stephane T'Jampens, Gerd Joachim Kunde, F. Redi, A. Schopper, E. Polycarpo, Tatsuya Nakada, G. Bencivenni, Giacomo Vitali, Stephan Escher, Vlad-Mihai Placinta, Patrick Koppenburg, Yiheng Luo, Michele Atzeni, Deepanwita Dutta, G. Liu, J. Fu, Murdo Traill, C. Sanchez Mayordomo, B. T. Meadows, Moran Wang, D. Vom Bruch, G. Raven, D. Decamp, L. Garrido, A. Golutvin, Matthew Kelsey, Jordy Sebastiaan Butter, Stefano Petrucci, A. Petrolini, Lauren Emma Yeomans, M. D. Sokoloff, P. Campana, Oleksander Kot, Hongxi Xing, R. Mountain, Andrea Valassi, Paolo Carniti, Meril Reboud, Tara Nanut, F. Blanc, R. Lefèvre, Jennifer Brigitta Zonneveld, T. Lesiak, Mark Hatch, C. M. Costa Sobral, Johannes Heuel, B. D. C. Westhenry, Sebastian Schulte, Igor Kostiuk, V. V. Gligorov, Sandro Cadeddu, Jozef Tomasz Borsuk, Stephen M. Stahl, H. V. Cliff, Kenenbek Arzymatov, Federico Alessio, S. H. Lee, Tobias Tekampe, Marco Petruzzo, Hans Dembinski, Dawid Gerstel, Marcin Kucharczyk, Maximilien Chefdeville, Eluned Smith, G. Graziani, Matthew Kenzie, David Gascon, J. Lomba Castro, P. Vazquez Regueiro, Alexander Berezhnoy, Xavier Vilasis-Cardona, D. Melnychuk, S. Meloni, Marian Stahl, Naomi Veronika Raab, E. Grauges, Pavol Stefko, Qiang Xu, Konstantin Gizdov, Wiktor Byczynski, M. Martinelli, N. Neufeld, William Barter, Martina Pili, M. T. Tran, Sophie Richards, Malte Hecker, Almagul Kondybayeva, D. Hynds, D. Galli, R. Santacesaria, X. J. Zhou, Thomas Ackernley, Viacheslav Matiunin, L. Ferreira Lopes, X. Han, Andreas Weiden, L. Zhang, Jana Crkovská, D. R. Johnson, P. Gandini, Maciej Witold Majewski, C. R. Jones, A. G. Morris, Matthew Scott Rudolph, Renato Quagliani, C. Göbel, Yonghui Zhou, Marco Cattaneo, P. Billoir, Nikolai Voropaev, David Loh, Vladimir Macko, I. Nasteva, Angelo Carbone, Jaap Velthuis, I. A. Monroy, Matthieu Kecke, M. Patel, Anastasiia Kharisova, Federico Lazzari, A. Vollhardt, N. K. Watson, Marie Helene Schune, Marco Guarise, Alexandre Boyer, A. F. Campoverde Quezada, Kristian Alexander Zarebski, Michael Alexander, O. De Aguiar Francisco, Thomas Henry Hancock, Sofia Kotriakhova, C. Hasse, S. Ferreres Sole, V. Gibson, James Vincent Mead, Naomi Cooke, Loris Martinazzoli, Nikolay Bondar, Ph. Ghez, A. Sciubba, J. D. Osborn, Tengiz Kvaratskheliya, Nikita Kazeev, Marina Artuso, W. Wislicki, Ao Xu, Mara Senghi Soares, J. García Pardiñas, O. Steinkamp, E. Spadaro Norella, Federico Cindolo, Roger Forty, Alexander Battig, Lukas Witola, Roman Greim, Da Yu Tou, Adam Davis, Victor Renaudin, Florian Reiss, S. Malde, Jonas Nathanael Eschle, A. Dovbnya, C. Parkes, Silvia Gambetta, T. J. Gershon, C. Santamarina Rios, Titus Mombächer, Thomas Grammatico, R. Silva Coutinho, Ryan Newcombe, Barbara Sciascia, E. Ben-Haim, Elie Aslanides, B. R. Gruberg Cazon, J. Marks, Antje Mödden, M. Straticiuc, Lukas Gruber, Cameron Thomas Dean, B. Souza De Paula, T. Ruf, F. Teubert, N. Neri, Alex Seuthe, R. Lindner, Elisabeth Maria Niel, Adam Dendek, R. Le Gac, P. Alvarez Cartelle, B. Garcia Plana, V. Franco Lima, Gediminas Sarpis, W. Baldini, Anastasia Smetkina, J. J. Walsh, Davide Lancierini, F. Stagni, Francesca M. Pisani, Phoebe Meredith Hamilton, Sandra Amato, A. Bondar, Daniel Patrick O'Hanlon, Maxime Schubiger, S. Filippov, Lain-Jong Li, Samuel Coquereau, Evgenii Shmanin, V. Vorobyev, M. van Veghel, G. Martellotti, Alexander Vagner, Anna Danilina, Jordan Daniel Roth, Hossein Afsharnia, Cedric Meaux, M. R. J. Williams, Ignacio Bediaga, Desmond Mzamo Shangase, Simon Stemmle, Y. Li, J. A. de Vries, G. Wilkinson, D. Martinez Santos, J. Z. Fan, N. Tuning, Matthew James Tilley, Violaine Bellee, William Dean, Alessandra Gioventù, F. J. P. Soler, R. Schwemmer, Nathanael Farley, Jan Buytaert, Mark Whitehead, K. Belous, J. M. Otalora Goicochea, Piera Muzzetto, Wolfgang Funk, Paul Andre Günther, M. Plo Casasus, S. Playfer, Carmen Giugliano, Silvia Borghi, M. Karacson, S. C. Haines, M. Romero Lamas, M. Ferro-Luzzi, L. L. Pappalardo, A. Hicheur, P. Camargo Magalhaes, Sean Benson, Petr Fedin, Frank Ferrari, Hangyi Wu, Guido Andreassi, Agnieszka Oblakowska-Mucha, Xiao-yan Li, Alexandru Ene, E. Thomas, Qundong Han, G. Lanfranchi, M.-N. Minard, Mark Richard James Williams, Jakub Moron, T. J. V. Bowcock, James Mwangi Kariuki, A. Vorobyev, M. Witek, F. Dordei, Jolanta Brodzicka, Biljana Mitreska, Lucas Mcconnell, M. Rotondo, M. Needham, M. De Serio, Serhii Cholak, Renata Kopecna, D. Lacarrere, Mikhail Zavertyaev, Olivier Deschamps, Niklas Stefan Nolte, C. L. Da Silva, M. McCann, W. D. Hulsbergen, G. Manca, Konstantinos Petridis, Carina Trippl, J. A. Rodriguez Lopez, S. Gallorini, O. Schneider, Natalia Polukhina, Yunyun Fan, Ryan Calladine, L. Kravchuk, Matthew George Chapman, Martina Ferrillo, Louis Henry, Emilie Maurice, Nicola Skidmore, Vasyl Dobishuk, Giovanni Passaleva, Hilbrand Steffen Kuindersma, Lucia Grillo, Zhiyu Xiang, Laurent Dufour, Kodassery Prasanth, G. Alkhazov, E. Tournefier, Stanislav Poslavskii, Plamen Hristov Hopchev, G. D. Lafferty, Julien Cogan, Alessandro Cardini, C. Matteuzzi, A. McNab, A. Brossa Gonzalo, P. Gironella Gironell, J. M. De Miranda, C. Chen, L. R. Madhan Mohan, Lesya Shchutska, J. Baptista Leite, Ying Lu, Tomasz Fiutowski, X. Cid Vidal, F. Muheim, Konrad Klimaszewski, David Gerick, John Gordon Smeaton, Anatoly Konoplyannikov, Mikhail Hushchyn, Patrick Owen, P. Collins, Y. Sun, M. Tobin, Martino Borsato, M. Xu, M. De Cian, Johannes Albrecht, J. Ruiz Vidal, Dominik Stefan Mitzel, Gianfranco Morello, Preema Rennee Pais, Pawel Kopciewicz, D. Zhang, Malcolm John, Gerwin Meier, Karol Hennessy, Roland Bernet, L. G. Scantlebury Smead, M. Gandelman, M. Rama, F. Fontanelli, Michele Veronesi, M. Charles, Claudio Gotti, Krzysztof Swientek, Dominik Müller, E. Cogneras, E. Dall’Occo, E. Golobardes, Christopher John Parkinson, M. Veltri, G. Haefeli, Tommaso Colombo, Mark Wilkinson, Roland Waldi, Franco Bedeschi, Xuhao Yuan, Kurt Rinnert, Jiayin Sun, Y. Gao, A. Alfonso Albero, E. van Herwijnen, S. Kandybei, J. A. B. Coelho, Daniel Vieira, S. Stracka, T. Kirn, R. Matev, Basem Khanji, Y. Xie, Thomas Blake, Ming Zeng, Tommaso Pajero, R. Cenci, S.-G. Chitic, Adam Benjamin Morris, Milosz Zdybal, B. Rachwal, V. Vagnoni, E. Luppi, P. Fernandez Declara, Timofei Maltsev, L. Calero Diaz, J. Serrano, H. Schindler, Marek Idzik, G. Wormser, Sara Celani, Victor Egorychev, S. A. Wotton, John Jake Lane, Georgios Chatzikonstantinidis, Yuyue Gan, Anatoly Butkevich, Sophie Katharina Kretzschmar, M. Calvo Gomez, Vladimir Chulikov, Guillaume Pietrzyk, Maciej Wojciech Dudek, G. Corti, Thomas Hadavizadeh, Dmitrii Pereima, Yawen Wang, A. Dziurda, K. De Bruyn, S. Sellam, Samuel Maddrell-Mander, R. Graciani Diaz, Claire Prouve, Neville Harnew, M. van Beuzekom, C. Vázquez Sierra, A. Büchler-Germann, Timon Schmelzer, Zan Ren, Sebastian Neubert, Scott Ely, Maria Elena Stramaglia, Feng Jiang, Matthieu Marinangeli, A. Bursche, Martin Stefan Bieker, Aravindhan Venkateswaran, Jia-Jia Qin, Andrii Usachov, Marco Pappagallo, Daniel Charles Craik, S. Ricciardi, Yuezhe Yao, Huacheng Cai, Rudolf Oldeman, Martha Hilton, F. Archilli, Fedor Ratnikov, Ilaria Neri, Valery Pugatch, S. J. Chen, Jacopo Pinzino, Wen Chao Zhang, Davide Fazzini, C. Sanchez Gras, Cynthia Nunez, E. Gushchin, Sara Elizabeth Mitchell, Andrew Crocombe, Z. Mathe, B. Malecki, Christoph Frei, Chenxi Gu, K. Carvalho Akiba, R. McNulty, Paul Seyfert, Ekaterina Trifonova, P. Krokovny, R. Nandakumar, Anna Ossowska, Nathan Jurik, D. Lucchesi, Veronika Chobanova, l. Soares Lavra, Vladimir Romanovskiy, A. Zhelezov, G. Carboni, A. Gallas Torreira, Anna Lupato, T. E. Latham, M. Pepe Altarelli, G. Punzi, Eduardo Rodrigues, D. E. Hutchcroft, Marcel Materok, Thomas Harrison, S. Monteil, Edward James Millard, Marco Gersabeck, Miroslav Saur, George Holger Lovell, R. Manera Escalero, D. Hill, J. Maratas, Gennady Panshin, Ifan Williams, A. Lusiani, Michal Dziewiecki, I. V. Gorelov, K. Müller, Giovanni Bassi, M. Poli Lener, Tai-hua Lin, Manuel Schiller, Lauren Douglas, Li Xu, M. Ramos Pernas, Vitalii Lisovskyi, T. Gys, Andrea Mogini, Sergey Didenko, Simone Bifani, Wojciech Krupa, A. A. Alves, P. Di Nezza, S. Klaver, S. Perazzini, M. Franco Sevilla, Alexey A. Petrov, Olli Lupton, S. De Capua, J. J. Saborido Silva, K. Wyllie, Fabrice Desse, Joseph David Shupperd, Ia. Bezshyiko, B. Pietrzyk, Nikolay Nikitin, Igor Skiba, A. Lai, Andrea Mauri, Wenbin Qian, Daniel Stephen Richards, D. Savrina, Philippe d'Argent, Cheryl Pappenheimer, M. Merk, S. Farry, P. E. L. Clarke, Sebastien Ponce, Kayleigh Anne Thomson, Daniele Manuzzi, A. C. dos Reis, Y. H. Zheng, C. J. G. Onderwater, Emma Buchanan, Lars Eklund, Alexander Inglessi, Hongjie Mu, Elena Graverini, Ziad Ajaltouni, M. Dorigo, Michele Piero Blago, Salvatore Aiola, Philip Ilten, Andreas Güth, Margarete Schellenberg, Peter Svihra, T. D. Nguyen, Vladislav Balagura, N. Sagidova, L. De Paula, Baasansuren Batsukh, P. Spradlin, Felix Johannes Kress, Shantam Taneja, Roberta Cardinale, Kevin Heijhoff, Lorenzo Capriotti, A. Jawahery, M. Bartolini, Razvan Daniel Moise, J. M. Yu, Christoph Langenbruch, M. Shapkin, Gianluigi Casse, Angelo Loi, B. Schmidt, Ivan Belyaev, Jan-Marc Basels, A. Artamonov, E. Jans, Brij Kishor Jashal, Srishti Bhasin, Tara Shears, L. Silva de Oliveira, Anton Poluektov, Lorenzo Sestini, D. Wiedner, E. Govorkova, Harald Viemann, Alexander Leflat, Iwan Thomas Smith, M. S. Rangel, Liupan An, R. Vazquez Gomez, A. Palano, Tomasz Szumlak, Blaise Delaney, Laura Promberger, Alessio Sarti, M. Fiorini, A. Dzyuba, Guillermo Loustau, O. Maev, Simon Nieswand, Annarita Buonaura, Valery Zhukov, Abhijit Mathad, Tomasz Skwarnicki, Sebastian Bachmann, R. Jacobsson, Rafal Dominik Krawczyk, S. Simone, V. Obraztsov, Diego Alejandro Milanes, M. Lucio Martinez, Stephan Eisenhardt, Christopher Betancourt, Thibaud Humair, A. Satta, R. I. Rabadan Trejo, Ulrik Egede, Ivan Polyakov, M. Brodski, F. Maciuc, Svende Braun, M. J. Morello, Daniel Berninghoff, C. Satriano, A. Contu, Olivier Leroy, P. Perret, Sune Jakobsen, Eliane Epple, Sergey Barsuk, Oliver Lantwin, Luca Minzoni, Dylan Jaide White, Claudia Bertella, A. Di Canto, Aleksandra Snoch, Harris Conan Bernstein, Holger Stevens, Hang Yin, O. Boente Garcia, C. Bozzi, A. Puig Navarro, François Fleuret, B. Leverington, M. Chrzaszcz, L. Giubega, A. Oyanguren, Alexander D. Popov, R. J. Barlow, Marta Calvi, Nicola Serra, Thomas N. Williams, Francesco Dettori, Andrew Beiter, U. Marconi, A. Falabella, M. Sarpis, Biagio Saitta, Ross John Hunter, Michael Becker, Serhii Koliiev, Dmitry Golubkov, Alexandra Paige Rollings, John Leslie Cobbledick, G. Simi, V. Bocci, Lucian Cojocariu, Mark Smith, Patrick Mackowiak, A. Bertolin, Aleksei Chernov, Floris Keizer, D. Pinci, Jihyun Bhom, Mariia Poliakova, Simon Baker, K. E. Kim, William Parker, F. Polci, G. Mancinelli, Conor Fitzpatrick, Antonino Sergi, T. Boettcher, A. Brea Rodriguez, D. Websdale, L. M. Garcia Martin, B. Couturier, R. A. Fini, C. Abellán Beteta, Jakub Ryzka, Robert Hart, Timothy Evans, M. Vieites Diaz, S. Schael, Niladribihari Sahoo, A. Tsaregorodtsev, Lucio Anderlini, Ina Carli, Xiaofeng Zhu, C. Remon Alepuz, A. Papanestis, Xia-Ji Liu, Frederic Machefert, Sheldon Stone, A. Grecu, Andrey Ustyuzhanin, J. J. Back, Bernardo Adeva, Marianna Fontana, Davide Brundu, Colm Harold Murphy, Patrick Robbe, Quentin Fuehring, Phillip John Marshall, Arnaud Robert, C. Patrignani, Wojciech Krzemien, Evelina Gersabeck, Markus Roehrken, V. Tisserand, M. Andreotti, Benjamin Audurier, Denis Derkach, F. Ferreira Rodrigues, Giulia Tuci, Tatiana Ovsiannikova, Ph. Charpentier, Arthur Marius Hennequin, S. Ogilvy, Alexander Malinin, Heather Mckenzie Wark, A. B. Rodrigues, P. Naik, David Anthony Friday, Stefano Cali, George Coombs, F. F. Wilson, Mauricio Féo, A. Gomes, Federico Betti, L. A. Granado Cardoso, Maria Flavia Cicala, Petr Andreevich Gorbounov, A. Casais Vidal, L. Meyer Garcia, Pietro Marino, M. Schmelling, Dong Xiao, B. Quintana, Yu. Guz, Jonathan Plews, P. De Simone, E. Santovetti, Tatiana Gaintseva, B. Spaan, J. Closier, A. Massafferri, John Matthew Durham, Biplab Dey, Serena Maccolini, Roel Aaij, Vadym Denysenko, Alexsei Chubykin, J. H. Lopes, Zhipeng Tang, Andrea Merli, Jacopo Cerasoli, Dmitrii Maisuzenko, Hans Dijkstra, Wenhua Hu, Y. Zhang, S. Blusk, Maxim Borisyak, H. F. Schreiner, Saverio Mariani, Z. Xu, Vukan Jevtic, O. V. Mineev, Alessandro Camboni, K. M. Fischer, Fedor Baryshnikov, C. Gaspar, Jing Wang, D. Torres Machado, Alex Pearce, Chung Nguyen-Mau, Daniele Marangotto, Gregory Ciezarek, Alessandro Pastore, Zhenzi Wang, Veronica Soelund Kirsebom, Artem Ryzhikov, Nis Meinert, Shudong Zhang, Alison Tully, Jeremy Dalseno, Michal Kreps, Sergey Strokov, B. Jost, Giovanni Cavallero, Stefano Zucchelli, Hanna Malygina, P. Griffith, C. Haen, Artem Maevskiy, C. B. Van Hulse, Paolo Ciambrone, V. Chekalina, Oleg Yushchenko, J. V. Viana Barbosa, M. J. Bradley, H. W. Van Hecke, Marco Clemencic, Zishuo Yang, M. Palutan, Luyan Sun, Mikkel Bjørn, F. A. Garcia Rosales, Mark Slater, Mikhail Mikhasenko, Andrea Bizzeti, M. O. Bettler, Vladislav Belavin, Varvara Batozskaya, Dana Bobulska, L. Shekhtman, Maciej Pawel Szymanski, Jiangqiao Hu, Xixin Liang, Victor Coco, Zhuoming Li, W. Huang, M. Mukherjee, D. Campora Perez, V. Kudryavtsev, D. R. Ward, Donal Murray, and S. Tolk
Subjects: Quantum chromodynamics, Physics, Quark model, Strong interaction, General Physics and Astronomy, State (functional analysis), 01 natural sciences, Luminosity, Baryon, Crystallography, 0103 physical sciences, Mass spectrum, 010306 general physics, Energy (signal processing)
Abstract: The Λ_{c}^{+}K^{-} mass spectrum is studied with a data sample of pp collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.6 fb^{-1} collected by the LHCb experiment. Three Ξ_{c}^{0} states are observed with a large significance and their masses and natural widths are measured to be m[Ξ_{c}(2923)^{0}]=2923.04±0.25±0.20±0.14 MeV, Γ[Ξ_{c}(2923)^{0}]=7.1±0.8±1.8 MeV, m[Ξ_{c}(2939)^{0}]=2938.55±0.21±0.17±0.14 MeV, Γ[Ξ_{c}(2939)^{0}]=10.2±0.8±1.1 MeV, m[Ξ_{c}(2965)^{0}]=2964.88±0.26±0.14±0.14 MeV, Γ[Ξ_{c}(2965)^{0}]=14.1±0.9±1.3 MeV, where the uncertainties are statistical, systematic, and due to the limited knowledge of the Λ_{c}^{+} mass. The Ξ_{c}(2923)^{0} and Ξ_{c}(2939)^{0} baryons are new states. The Ξ_{c}(2965)^{0} state is in the vicinity of the known Ξ_{c}(2970)^{0} baryon; however, their masses and natural widths differ significantly.
Published: 2020
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108. Persistent insulating state at megabar pressures in strongly spin-orbit coupled Sr2IrO4

Author: Chao An, Lili Zhang, Zhaorong Yang, Xuliang Chen, Bowen Zhang, Ranran Zhang, Yifang Yuan, Shuyang Wang, L. E. DeLong, Ying Zhou, Changjin Zhang, Gang Cao, Chunhua Chen, Tao Han, and Yonghui Zhou
Subjects: Diffraction, Electron density, Structural phase, Materials science, Condensed matter physics, Band gap, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, symbols.namesake, Tetragonal crystal system, Electrical resistance and conductance, 0103 physical sciences, symbols, Condensed Matter::Strongly Correlated Electrons, Orthorhombic crystal system, 010306 general physics, 0210 nano-technology, Raman scattering
Abstract: It is commonly anticipated that an insulating state will collapse in favor of an emergent metallic state at high pressures: The average electron density must increase with pressure, while the electronic bandwidth is expected to broaden and fill the insulating energy band gap. Here we report an unusually stable insulating state that persists up to at least 185 GPa in $\mathrm{S}{\mathrm{r}}_{2}\mathrm{Ir}{\mathrm{O}}_{4}$, the archetypical spin-orbit-driven ${J}_{\mathrm{eff}\phantom{\rule{0.28em}{0ex}}}=1/2$ insulator. This study shows that the electrical resistance R of single-crystal $\mathrm{S}{\mathrm{r}}_{2}\mathrm{Ir}{\mathrm{O}}_{4}$ initially decreases with applied pressure P, reaches a minimum in the range 32--38 GPa, then abruptly rises to recover the insulating state with increasing P up to 185 GPa. However, evidence of a saturation of R below 80 K for $P\ensuremath{\ge}124\phantom{\rule{0.16em}{0ex}}\mathrm{GPa}$ GPa raises the possibility of a low-temperature exotic state. Our synchrotron x-ray diffraction and Raman scattering data show the emergence of the rapid increase in R is accompanied by a structural phase transition from the native tetragonal $I{4}_{1}/acd$ phase to an orthorhombic $Pbca$ phase (with much reduced symmetry) at 40.6 GPa. The clear correspondence of the onset pressures of these two anomalies is key to understanding the stability of the insulating state at megabar pressures: Pressure-induced, structural distortions prevent the expected onset of metallization, despite the sizable volume compression attained at the highest pressure accessed in this study.
Published: 2020
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109. Long-Range Ordered Amorphous Atomic Chains as Building Blocks of a Superconducting Quasi-One-Dimensional Crystal

Author: Chunhua Chen, Gufei Zhang, Yonghui Zhou, Jianhui Zhou, Victor Moshchalkov, Xuliang Chen, Zhaorong Yang, Fengqi Song, Chao An, Changyong Park, Horst-Günter Rubahn, and Fucong Fei
Subjects: Materials science, Fullerene, 02 engineering and technology, 010402 general chemistry, Condensed Matter::Disordered Systems and Neural Networks, 01 natural sciences, linear chain compound, Monocrystalline silicon, Crystal, Condensed Matter::Materials Science, Lattice (order), high pressures, General Materials Science, quasi-1D materials, Superconductivity, Condensed matter physics, Mechanical Engineering, superconductivity, A diamond, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Amorphous solid, combination of crystalline and amorphous structures, Mechanics of Materials, Quasi one dimensional, 0210 nano-technology
Abstract: Crystalline and amorphous structures are two of the most common solid-state phases. Crystals having orientational and periodic translation symmetries are usually both short-range and long-range ordered, while amorphous materials have no long-range order. Short-range ordered but long-range disordered materials are generally categorized into amorphous phases. In contrast to the extensively studied crystalline and amorphous phases, the combination of short-range disordered and long-range ordered structures at the atomic level is extremely rare and so far has only been reported for solvated fullerenes under compression. Here, a report on the creation and investigation of a superconducting quasi-1D material with long-range ordered amorphous building blocks is presented. Using a diamond anvil cell, monocrystalline (TaSe 4 ) 2 I is compressed and a system is created where the TaSe 4 atomic chains are in amorphous state without breaking the orientational and periodic translation symmetries of the chain lattice. Strikingly, along with the amorphization of the atomic chains, the insulating (TaSe 4 ) 2 I becomes a superconductor. The data provide critical insight into a new phase of solid-state materials. The findings demonstrate a first ever case where superconductivity is hosted by a lattice with periodic but amorphous constituent atomic chains.
Published: 2020
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110. Pressure-driven Lifshitz transition in type-II Dirac semimetal NiTe2

Author: Bowen Zhang, Xuliang Chen, Zhaorong Yang, Yonghui Zhou, Chunhua Chen, Shuyang Wang, Ranran Zhang, Mengyao Qi, Chao An, Hao Wu, Ying Zhou, and Yifang Yuan
Subjects: Superconductivity, Diffraction, Physics, Condensed matter physics, Dirac (software), 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Pressure coefficient, Semimetal, symbols.namesake, Electrical resistivity and conductivity, 0103 physical sciences, symbols, 010306 general physics, 0210 nano-technology, Raman spectroscopy, Raman scattering
Abstract: Band engineering in layered transition metal dichalcogenides (TMDs) leads to a variety of emergent phenomena and has obtained considerable attention recently. Transition metal ditelluride ${\mathrm{NiTe}}_{2}$ has been discovered experimentally to be a type-II Dirac semimetal at ambient pressure, and was predicted to display superconductivity in the monolayer limit. Here we systematically investigate the structural and electronic properties of type-II Dirac semimetal ${\mathrm{NiTe}}_{2}$ under high pressure. Room-temperature synchrotron x-ray diffraction and Raman scattering measurements reveal the stability of the pristine hexagonal phase up to 52.2 GPa, whereas both the pressure coefficient and linewidth of Raman mode ${E}_{g}$ exhibit anomalies at a critical pressure ${P}_{\mathrm{c}}\ensuremath{\sim}16\phantom{\rule{0.28em}{0ex}}\mathrm{GPa}$. Meantime, Hall resistivity measurement indicates that the hole-dominated behavior maintains up to 15.6 GPa and transforms into electron-dominated behavior at higher pressures. Our findings consistently demonstrate a pressure-induced Lifshitz transition in type-II Dirac semimetal ${\mathrm{NiTe}}_{2}$.
Published: 2020
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111. Polymer Matrix Systems Used for Date Palm Composite Reinforcement

Author: Yonghui Zhou, Mizi Fan, Said Awad, and Evina Katsou
Subjects: chemistry.chemical_classification, chemistry, Polymer science, Computer science, Composite number, Polymeric matrix, Polymer, Reinforcement, Elastomer
Abstract: Date palm fibres have some physical and mechanical properties that are similar to those of synthetic fibres, which make them attractive for developing sustainable composites. However, in common with other natural fibres, date palm fibres have some unique characteristics, such as hydrophilicity and relatively low mechanical properties, which require some specific considerations when they are used for composite formulations. This chapter reviews and discusses various types of polymer matrices that are used to date and can be potentially used with date palm tree fibres to develop sustainable composites in the future, e.g. thermoplastics and thermosets. More importantly, elastomer polymers and bio-derived resins are playing an increasingly critical role in the development of new natural fibre composites, which were often omitted in the currently available book chapters or review articles. Hence, this chapter also pays specific attention on the potentially promising elastomers and bio-resins, such to draw a complete picture of the polymeric matrices. Furthermore, this chapter discusses the effect of various types of date palm fibres and fibre characteristics on the mechanical, physical and thermal properties of the composites developed and provides a database with the reported research done to date on developing date palm fibre reinforced polymeric composites. This paper finishes with some critical suggestions and future perspectives, underlining the issues to be addressed in further in-depth studies and potential industrialisation of the composites.
Published: 2020
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112. Wave breaking phenomena and global existence for the weakly dissipative generalized Camassa-Holm equation

Author: Yonghui Zhou and Shuguan Ji
Subjects: Physics, Moment (mathematics), Camassa–Holm equation, Semigroup, Applied Mathematics, Mathematics::Analysis of PDEs, Dissipative system, Breaking wave, Geodetic datum, General Medicine, Analysis, Mathematical physics, Sign (mathematics)
Abstract: In this paper, we mainly study several problems on the weakly dissipative generalized Camassa-Holm equation. We first establish the local well-posedness of solutions by Kato's semigroup theory. We then derive the necessary and sufficient condition of the blow-up of solutions and a criteria to guarantee occurrence of wave breaking. Moreover, when the solution blows up, we obtain the precise blow-up rate. We finally show that the equation has a unique global solution provided the momentum density associated with their initial datum satisfies appropriate sign conditions.
Published: 2022
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113. Circular development of recycled natural fibers from medium density fiberboard wastes

Author: Yonghui Zhou, Qinzhi Zeng, Mizi Fan, Chen Nairong, Lu Qiufen, and Jiuping Rao
Subjects: 0106 biological sciences, Water resistant, Materials science, Renewable Energy, Sustainability and the Environment, Ecological environment, 020209 energy, Strategy and Management, Significant difference, Economic shortage, 02 engineering and technology, Raw material, 01 natural sciences, Industrial and Manufacturing Engineering, 010608 biotechnology, 0202 electrical engineering, electronic engineering, information engineering, Fiber, Composite material, Medium density fiberboard, General Environmental Science
Abstract: This paper addresses a circular economy strategy for the medium density fiberboard (MDF) industry by effectively recycling fibers from MDF residues as raw materials, additionally reducing waste discharge, preserving the ecological environment, saving the wooden resources, and relieving the shortage of raw materials. The work specifically discussed the characteristics and bonding properties of the recycled fibers from the MDF offcuts by the cooking and beating method. The morphology of the recycled fibers was compared with that of the virgin fibers, and then the chemical characteristics of the recycled fibers were analyzed with XPS. Finally, the bonding properties between the recycled fibers and some virgin fibers were compared. The results showed that the fiber length of the recycled fibers is about 12% shorter than that of the virgin fibers and the percentage of shorter fibers (≤0.68 mm) is higher for the former than the latter, in addition, the broken ends ratio of the recycled fibers is 17% higher than that of the virgin fibers, while there is no significant difference in the fiber width and its distribution. SEM and XPS characterizations confirmed that there are some cured UF resin on the surface of the recycled fibers. The MOE, MOR, and IB of the recycled MDF is 5, 10 and 11% respectively lower than those of the fresh MDF manufactured with the virgin fiber, but its TS is 12% lower than that of the fresh MDF, this means that the recycled fiber MDF is more dimensionally stable and water resistant.
Published: 2018
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114. Structural and transport properties of the topological semimetal TaSb2 at high pressures

Author: Chuanchuan Gu, Xuliang Chen, Yonghui Zhou, Ying Zhou, Chao An, and Zhaorong Yang
Subjects: Bulk modulus, Equation of state, Materials science, Magnetoresistance, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Thermal conduction, Topology, 01 natural sciences, Power law, Semimetal, Diamond anvil cell, Electronic, Optical and Magnetic Materials, Inorganic Chemistry, 0103 physical sciences, Materials Chemistry, Ceramics and Composites, Physical and Theoretical Chemistry, 010306 general physics, 0210 nano-technology, Ambient pressure
Abstract: We performed in situ high-pressure synchrotron x-ray diffraction (XRD) and electrical transport measurements on topological semimetal TaSb2 in diamond anvil cells with pressures up to 60.0–63.0 GPa. No evident trace of structural phase transitions is observed from our XRD. A fit of the volume versus pressure data by using the third-order Birch–Murnaghan equation of state yields the bulk modulus B 0 = 131.2 ± 3.4 GPa and its first-order derivative B 0 ′ = 6 ± 0.3. From ambient pressure to 27.8 GPa, the low-temperature conduction behaviors of TaSb2 stay almost unchanged, exhibiting a power law with the exponent around 3; meanwhile, the magnetoresistance (MR) at 5 K follows a same relationship of MR∝Bm with m= 1.45 ± 0.10. These results imply that the topological semimetal state of TaSb2 may be robust subjected to pressure, at least to 27.8 GPa.
Published: 2018
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115. Sequential Fair Stackelberg Equilibria of Linear Strategies in Risk-Seeking Insider Trading

Author: Yonghui Zhou and Fuzhou Gong
Subjects: 050208 finance, 05 social sciences, Profit (economics), Market liquidity, Risk-seeking, 0502 economics and business, Computer Science (miscellaneous), Stackelberg competition, Economics, Common value auction, Insider trading, Uniqueness, 050207 economics, Mathematical economics, Information Systems
Abstract: This paper develops a sequential fair Stackelberg auction model in which each of the two risk-seeking insiders has an equal chance to be a leader or follower at each auction stage. The authors establish the existence, uniqueness of sequential fair Stackelberg equilibria (in short, FSE) when both insiders adopt linear strategies, and find that at the sequential equilibria such two insiders compete aggressively that cause the liquidity of market to drop, the information to be revealed and the profit to go down very rapidly while the trading intensity goes substantially high. Furthermore, the authors also give continuous versions of corresponding parameters in the sequential FSE in closed forms, as the time interval between auctions approaches to zero. It shows that such parameters go down or up approximately exponentially and all of the liquidity of market, information and profit become zero while the trading intensity goes to infinity. Some numerical simulations about the sequential FSE are also illustrated.
Published: 2018
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116. Pressure-induced superconductivity in MoP

Author: Chao An, Yifang Yuan, Xiangang Wan, Yonghui Zhou, Bowen Zhang, Gang Wu, Zili Feng, Xiaoping Yang, Jinggeng Zhao, Zhaorong Yang, Zhenhua Chi, Curtis Kenney-Benson, Liuxiang Yang, Youguo Shi, Ying Zhou, Wenge Yang, Chuanchuan Gu, and Xuliang Chen
Subjects: 02 engineering and technology, lcsh:Atomic physics. Constitution and properties of matter, 01 natural sciences, Physics::Geophysics, symbols.namesake, Condensed Matter::Materials Science, Condensed Matter::Superconductivity, 0103 physical sciences, lcsh:TA401-492, 010306 general physics, Quantum, Superconductivity, Physics, Condensed matter physics, Degenerate energy levels, Fermi level, Macroscopic quantum phenomena, Fermion, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Semimetal, Electronic, Optical and Magnetic Materials, lcsh:QC170-197, symbols, Density functional theory, Condensed Matter::Strongly Correlated Electrons, lcsh:Materials of engineering and construction. Mechanics of materials, 0210 nano-technology
Abstract: Topological semimetal, a novel state of quantum matter hosting exotic emergent quantum phenomena dictated by the nontrivial band topology, has emerged as a new frontier in condensed-matter physics. Very recently, the coexistence of triply degenerate points of band crossing and Weyl points near the Fermi level was theoretically predicted and experimentally identified in MoP. Via high-pressure electrical transport measurements, we report here the emergence of pressure-induced superconductivity in MoP with a critical transition temperature Tc of ca. 2.5 K at ca. 30 GPa. No structural phase transition is observed up to ca. 60 GPa via synchrotron X-ray diffraction study. Accordingly, the topologically nontrivial band protected by the crystal structure symmetries and superconductivity are expected to coexist at pressures above 30 GPa, consistent with density functional theory calculations. Thus, the pressurized MoP represents a promising candidate of topological superconductor. Our finding is expected to stimulate further exploitation of exotic emergent quantum phenomena in novel unconventional fermion system. Molybdenum phosphide becomes superconducting above 30 GPa, with a critical transition temperature of 2.5 K. A team led by Youguo Shi, Xiaoping Yang and Zhaorong Yang from the Chinese Academy of Sciences perform high-pressure electrical transport measurements in molybdenum phosphide, which is a recently proved topological material hosting exotic fermions. They apply pressure over 90 GPa and observe a superconducting transition above 30 GPa with a critical transition temperature of 2.5 K, which increases to 4 K at 95 GPa. Meanwhile, the compound crystalizes into a (tungsten carbide) WC-type structure where the topological properties are predicted from ambient pressure up to 60 GPa. They expect that topological fermions and superconductivity could coexist under a pressure between 30 GPa and 60 GPa, suggesting a possible candidate for topological superconductivity.
Published: 2018
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117. Stability of traveling waves in a population dynamic model with delay and quiescent stage

Author: Yunrui Yang, Kepan Liu, and Yonghui Zhou
Subjects: Physics, education.field_of_study, General Mathematics, 010102 general mathematics, Mathematical analysis, Population, General Physics and Astronomy, Perturbation (astronomy), 01 natural sciences, Continuation method, 010101 applied mathematics, Exponential stability, Traveling wave, Uniform boundedness, 0101 mathematics, education
Abstract: This article is concerned with a population dynamic model with delay and quiescent stage. By using the weighted-energy method combining continuation method, the exponential stability of traveling waves of the model under non-quasi-monotonicity conditions is established. Particularly, the requirement for initial perturbation is weaker and it is uniformly bounded only at x = +∞ but may not be vanishing.
Published: 2018
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118. Date palm fibre geometry and its effect on the physical and mechanical properties of recycled polyvinyl chloride composite

Author: Said Awad, Yonghui Zhou, Mohamad Midani, Mizi Fan, Tamer Hamouda, and Evina Katsou
Subjects: Materials science, Absorption of water, Flexural strength, Ultimate tensile strength, Composite number, Sieve analysis, Izod impact strength test, Geometry, Microstructure, Agronomy and Crop Science, Water content
Abstract: Natural fibre (NF) is considered as the most available resource that exists in nature. Date palm trees (DPT) accounts for more than 2.8 million tons of waste annually, making it the most abundant agricultural biomass waste in the MENA region. Date palm fibre (DPF) extracted from DPT possesses great mechanical and physical characteristics which make them superior to other NFs in the MENA region. This study investigates the effect of DPF diameter size and loading content on both the mechanical and physical properties of DPF reinforced recycled polyvinyl chloride (RPVC) composite. The composites are developed using melt-mixing technique which is followed by compression moulding. The influence of the mechanical properties is investigated by evaluating the impact strength, tensile strength and flexural strength. Meanwhile the sieve analysis, thickness swelling (TS), moisture content (MC) and water absorption (WA) characteristics are evaluated. Composite microstructures are examined using optical microscopy to investigate the interfacial bonding between DPF and RPVC matrix. Results showed that at 40 wt% DPF, the TS, MC and WA were the highest demonstrating an increase of 1.57%, 1.76%, and 10.80%, respectively. The flexural strength, tensile strength and impact strength decreased as the loading content increased showing maximum reduction at 40 wt% loading, varying depending on DPF geometry. Although the results demonstrated a decrease in mechanical properties and an increase in physical properties as DPF loading increased depending on DPF geometry, the results indicate a great potential that the developed technologies could be industrialised under the waste management scheme for non-structural applications.
Published: 2021
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119. Research on community legal management

Author: Yonghui, Zhou, primary
Published: 2020
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120. Structural and electrical transport properties of charge density wave material LaAgSb2 under high pressure*

Author: Bowen Zhang, Yonghui Zhou, Chunhua Chen, Zhaorong Yang, Chao An, Yifang Yuan, Xuliang Chen, Xiaoping Yang, Ying Zhou, and Lili Zhang
Subjects: Materials science, Electrical transport, Condensed matter physics, High pressure, General Physics and Astronomy, Charge density wave
Abstract: Layered lanthanum silver antimonide LaAgSb2 exhibits both charge density wave (CDW) order and Dirac-cone-like band structure at ambient pressure. Here, we systematically investigate the pressure evolution of structural and electronic properties of LaAgSb2 single crystal. We show that the CDW order is destabilized under compression, as evidenced by the gradual suppression of magnetoresistance. At P C ∼ 22 GPa, synchrotron x-ray diffraction and Raman scattering measurements reveal a structural modification at room-temperature. Meanwhile, the sign change of the Hall coefficient is observed at 5 K. Our results demonstrate the tunability of CDW order in the pressurized LaAgSb2 single crystal, which can be helpful for its potential applications in the next-generation devices.
Published: 2021
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121. Multilayer graphene reinforced functionally graded tungsten carbide nano-composites

Author: Jun Zhao, Feng Gong, Jialin Sun, Mengjie Chen, Xiuying Ni, Yonghui Zhou, and Zuoli Li
Subjects: Materials science, Sintering, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, chemistry.chemical_compound, Fracture toughness, Tungsten carbide, law, lcsh:TA401-492, General Materials Science, Ceramic, Composite material, Lubricant, Graphene, Mechanical Engineering, Tribology, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Grain growth, chemistry, Mechanics of Materials, visual_art, visual_art.visual_art_medium, lcsh:Materials of engineering and construction. Mechanics of materials, 0210 nano-technology
Abstract: Mechanical and tribological properties of functionally graded multilayer graphene (MLG) reinforced WC-TiC-Al2O3 ceramics prepared employing two-step sintering (TSS) are determined in this paper. Results showed that MLG can act as not only an exceptional reinforcement phase, but also a superior lubricant phase. A 0.1 wt% MLG/WC-TiC-Al2O3 ceramics exhibits ~53.3% enhancement in fracture toughness, ~73.8% decrement in friction coefficient, ~82.65% improvement in wear resistance in comparison with monolithic ceramics. MLG bending, wrapping, interface debonding, MLG wall and network, MLG induced weak interface, grains bridging by MLG, MLG pullout, crack deflection, crack bridging and crack stopping are the major toughening mechanisms. The dramatic improvement in tribological performance is attributed to the self-lubrication of MLG and easily formed friction layer in the contact interface. Furthermore, the unrivalled thermal conductivity of MLG and its rather significant effect in inhibiting the grain growth are the important contribution to the improved tribological performance. Therefore, the functionally graded MLG/WC-TiC-Al2O3 ceramics are conducive to be engineered as high-speed cutting tools. Keywords: FGM, MLG, Microstructure, Mechanical properties, Tribological properties
Published: 2017
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122. Investigation of bulk and in situ mechanical properties of coupling agents treated wood plastic composites

Author: Yonghui Zhou, Mizi Fan, and Lanying Lin
Subjects: Materials science, Polymers and Plastics, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Nanoindentation, law.invention, Magazine, law, Ultimate tensile strength, medicine, Interface structure, Bulk property, Composite material, Softening, Wood plastic composites, Organic Chemistry, Stiffness, Wood flour, Penetration (firestop), 021001 nanoscience & nanotechnology, 0104 chemical sciences, Wetting, medicine.symptom, 0210 nano-technology, Interfacial property
Abstract: This paper presents the interfacial optimisation and characterisation of WPC by the use of maleated and silane coupling agents (MAPE, Si69 and VTMS), and its effect on the bulk and in situ mechanical properties. The results showed the treated WPC possessed better interface by showing improved compatibility between the constituents, wettability of wood flour, and resin penetration in the SEM images. The enhanced interface led to the increase in the tensile strength and stiffness of the treated WPC, which was confirmed by their superior load bearing capacity, namely the higher storage moduli measured by DMA. The observed shift of the relaxation peak of the treated WPC indicated the constraints on the segmental mobility of the polymeric molecules resulted from the treatments. Nanoindentation investigation revealed that the in situ mechanical properties were subject to a number of phenomena including fibre weakening or softening impact, crystalline structure transformation and cell wall deformation, concluding that the bulk mechanical properties of WPC might not be governed by the local property of materials within the interface. The authors gratefully acknowledge the financial support from the European CIP-EIP-Ecoinnovation- 2012 (Project Number: 333083).
Published: 2017
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123. Effects of initial particle size distribution and sintering parameters on microstructure and mechanical properties of functionally graded WC-TiC-VC-Cr3C2-Co hard alloys

Author: Yonghui Zhou, Jun Zhao, Zuoli Li, Anhai Li, Xiuying Ni, and Jialin Sun
Subjects: Toughness, Materials science, 020502 materials, Process Chemistry and Technology, Metallurgy, Sintering, 02 engineering and technology, 021001 nanoscience & nanotechnology, Microstructure, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Carbide, Grain growth, Fracture toughness, 0205 materials engineering, Phase (matter), Materials Chemistry, Ceramics and Composites, Surface layer, Composite material, 0210 nano-technology
Abstract: Functionally graded WC-TiC-Co cemented carbides with a Co content gradient and not comprising the η-phase were prepared employing hot-pressing sintering technique by introducing pre-designed both gradients of Co contents and WC grain sizes. The effects of initial hard phase particle size distribution and sintering parameters on the microstructure and mechanical properties of functionally graded cemented carbides were investigated by fabricating coarse-particle, fine-particle and hybrid-particle (combining coarse-particle and fine-particle) functionally graded cemented carbides employing hot-pressing sintering technique. Various hot sintering temperatures (1325 ℃, 1350 ℃, 1375 ℃ and 1400 ℃) and soaking times (15 min, 30 min, 45 min, 60 min) were tested in order to determine the optimal parameters of hybrid-particle functionally graded WC-TiC-Co cemented carbides with the assistance of VC and Cr 3 C 2 as grain growth inhibitors and PVP as dispersant. The experimental results showed that excellent mechanical properties are achieved for sintering at 1375 ℃ soaked for 45 min with a hardness of 1986 kgf/mm 2 , a TRS of 1752 MPa and a fracture toughness of 13.05 MPa m 1/2 . Hybrid-particle functionally graded WC-TiC-Co cemented carbides generated a good liquid-phase sintering at 1375 ℃ soaked for 45 min. Specimens sintering for 1325 ℃ and 1350 ℃ maintained the pre-designed Co gradient, whereas the specimens sintering for 1375 ℃ maintained a smaller Co gradient and the specimen sintering for 1400 ℃ had no Co gradient. The excessive grain growth of fine-grained WC resulted the WC size difference disappear of coarse-grain and fine-grain, which weaken the Co phase migration pressure from surface layer to core layer. Furthermore, Co liquid phase distribution behavior is normally related with temperature, soaking time and pressure. The five-layer structure developed in this paper provides the surface with exceptional combination of high wear resistance and high toughness, which is favorable for the application as metal cutting tools.
Published: 2017
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124. High-performance of self-powered UV photodetector with long-term stability based on ZnO nanorods and an iodine-free quasi solid-state electrolyte

Author: Xiaoli Peng, Zhizhen Ye, Fengzhi Wang, Weihao Wang, Yiyu Zeng, Xinhua Pan, Qiaoqi Lu, and Yonghui Zhou
Subjects: chemistry.chemical_classification, Photocurrent, Materials science, General Chemical Engineering, Iodide, Inorganic chemistry, technology, industry, and agriculture, 02 engineering and technology, General Chemistry, Electrolyte, Photoelectrochemical cell, 010402 general chemistry, 021001 nanoscience & nanotechnology, Tin oxide, 01 natural sciences, 0104 chemical sciences, Responsivity, chemistry, Chemical engineering, Nanorod, 0210 nano-technology, Quasi-solid
Abstract: Vertical zinc oxide nanorods (ZnO NRs) were grown on a fluorine-doped tin oxide coated glass substrate using a simple hydrothermal method. A novel iodine-free quasi solid-state electrolyte containing 1-methyl-3-propylimidazolium iodide, potassium iodide (KI) and poly(ethylene oxide) (PEO) was prepared. KI acted as a charge transfer auxiliary agent and PEO was used to solidify the liquid electrolyte. A self-powered photoelectrochemical cell type ultraviolet (UV) photodetector was fabricated, using ZnO NRs as the active photoanode and the quasi solid-state electrolyte as the electrolyte. The dependence of the photocurrent on the iodine-free quasi solid-state electrolyte containing different amounts of KI and PEO was investigated in detail. An optimal photocurrent can be obtained when the amount of KI and PEO was up to 0.03 g and 0.2 g, respectively, and the photodetector shows high responsivity (2.33 A W−1) and high sensitivity (533). The performance of the self-powered UV photodetector showed no obvious decay four months later, which shows great stability.
Published: 2017
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125. Recycled tyre rubber-thermoplastic composites through interface optimisation

Author: Mizi Fan and Yonghui Zhou
Subjects: chemistry.chemical_classification, Materials science, General Chemical Engineering, Composite number, technology, industry, and agriculture, 02 engineering and technology, General Chemistry, Polymer, Dynamic mechanical analysis, Polyethylene, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, chemistry.chemical_compound, chemistry, Natural rubber, visual_art, Polymer chemistry, visual_art.visual_art_medium, Molecule, Wetting, Composite material, 0210 nano-technology, Glass transition
Abstract: This paper presents the development of a rubber–polyethylene (PE) composite based on recycled materials with the aim of its interfacial optimisation by the use of maleated and silane coupling agents (maleated polyethylene (MAPE), bis(triethoxysilylpropyl)tetrasulfide (Si69) and vinyltrimethoxysilane (VTMS)). ATR-FTIR analysis revealed (1) the macromolecular entanglements between the grafted PE moiety in MAPE and the polymer chains of both rubber and PE in the composite, and (2) the chemical crosslinking between dissociated Si69 and rubber molecules followed by the entangling with PE polymer. These chemical interactions benefited the improvement of the constituent compatibility, rubber wettability, and interfacial adhesion of the corresponding composites, which were evident in SEM observations. The higher loss moduli, shift of glass transition peaks and inferior tan δ of the treated composites indicated the segmental immobility of the macromolecules after the treatments, which was confirmed by the NMR analysis by showing comparatively broader resonance peaks. The optimised interface led to the increase of the mechanical properties of the composites including storage modulus, tensile stress and strain. VTMS treatment was not as effective as MAPE and Si69 treatments in terms of interface refinery and property strengthening.
Published: 2017
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126. Effect of pressure on structural and electronic properties of the noncentrosymmetric superconductor Rh2Mo3N

Author: Xuliang Chen, Bowen Zhang, Hao Wu, Chao An, Yifang Yuan, Shuyang Wang, Mingliang Tian, Mengyao Qi, Yonghui Zhou, Changyong Park, Zhaorong Yang, Wensen Wei, Ranran Zhang, Ying Zhou, and Chunhua Chen
Subjects: Physics, Diffraction, Superconductivity, chemistry.chemical_element, 02 engineering and technology, Nitride, 021001 nanoscience & nanotechnology, Coupling (probability), 01 natural sciences, Crystallography, chemistry, Octahedron, Molybdenum, Condensed Matter::Superconductivity, Phase (matter), 0103 physical sciences, 010306 general physics, 0210 nano-technology, Electronic properties
Abstract: Noncentrosymmetric molybdenum nitride $\mathrm{R}{\mathrm{h}}_{2}\mathrm{M}{\mathrm{o}}_{3}\mathrm{N}$ is a conventional $s$-wave superconductor at ambient pressure. Here we report the evolution of structural and electronic properties of $\mathrm{R}{\mathrm{h}}_{2}\mathrm{M}{\mathrm{o}}_{3}\mathrm{N}$ under high pressure. X-ray diffraction measurements reveal the stability of pristine \ensuremath{\beta}-Mn-type cubic structure up to 47.9 GPa, accompanied by the continuously enhanced distortion of $\mathrm{M}{\mathrm{o}}_{6}\mathrm{N}$ octahedra. Electronic transport experiments show the robustness of superconductivity under pressure, i.e., the superconducting transition temperature ${T}_{\mathrm{c}}$ varies only \ensuremath{\sim}0.7 K upon compression up to 38.5 GPa. Meanwhile, detailed analyses of both structural and transport results consistently reveal a critical pressure of \ensuremath{\sim}14.0 GPa. In agreement with the enhancement of octahedral distortion, the temperature dependence of upper critical magnetic field accords with a $p$-wave model at 22.0 GPa and an $s$-wave model at 6.0 GPa. These results suggest the emergence of novel superconductivity in the distorted $\mathrm{R}{\mathrm{h}}_{2}\mathrm{M}{\mathrm{o}}_{3}\mathrm{N}$ cubic phase under pressure, which could be attributed to the enhanced strength of antisymmetric spin-orbit coupling (ASOC) via pressure-modified local octahedral distortion. Our findings may shed light on the searching and understanding of unique triplet-pairing superconductivity in other inversion-broken superconductors with strong ASOC.
Published: 2019
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127. Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2

Author: Ying Zhou, Chunhua Chen, Chuanchuan Gu, Xuliang Chen, Meng-Yao Qi, Yifang Yuan, Haidong Zhou, Jianhui Zhou, Bowen Zhang, Shuyang Wang, Yugui Yao, Yonghui Zhou, Zhaorong Yang, Lili Zhang, Chao An, and Maoyuan Wang
Subjects: Diffraction, Materials science, Condensed matter physics, Weyl semimetal, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Semimetal, Magnetization, Ferromagnetism, Hall effect, Electrical resistivity and conductivity, 0103 physical sciences, Berry connection and curvature, 010306 general physics, 0210 nano-technology
Abstract: We report a systematic high-pressure study of magnetic topological semimetal ${\mathrm{Co}}_{3}{\mathrm{Sn}}_{2}{\mathrm{S}}_{2}$ through measurements of synchrotron x-ray diffraction (XRD), magnetization, electrical, and Hall transports combined with first-principle theoretical calculations. No evident trace of structural phase transition is detected through synchrotron x-ray diffraction over the measured pressure range of 0.2--50.9 GPa. We find that the ferromagnetism and the anomalous Hall resistivity are monotonically suppressed as increasing pressure and almost vanish around 22 GPa. The anomalous Hall conductivity varies nonmonotonically against pressure at low temperatures, involving competition between original and emergent Weyl nodes. Combined with first-principle calculations, we reveal that the intrinsic mechanism due to the Berry curvature dominates the anomalous Hall effect under high pressure.
Published: 2019
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128. Observation of New Resonances in the Λb0π+π− System

Author: Angelo Carbone, Jaap Velthuis, Mick Mulder, V. Volkov, Hannah Louise Pullen, F. Blanc, G. Valenti, Z. C. Huard, R. Lefèvre, Sulin Zhang, Florian Reiss, S. Malde, J. He, Surapat Ek-In, S. Easo, Miroslaw Firlej, E. Ben-Haim, Maxime Schubiger, Kevin Maguire, Kuzma Ivshin, A. Petrolini, Marco Petruzzo, Philipp Ibis, Lauren Emma Yeomans, P. Campana, Hongxi Xing, Mark Wilkinson, Roland Waldi, G. Graziani, Ignacio Bediaga, Desmond Mzamo Shangase, Matthew Kelsey, Matthew Kenzie, Marian Stahl, David Gascon, J. Wang, Kevin Heijhoff, Lorenzo Capriotti, Tommaso Colombo, Paolo Carniti, Meril Reboud, Naomi Veronika Raab, Alexander Berezhnoy, Jordy Sebastiaan Butter, Marcin Kucharczyk, Maximilien Chefdeville, J. Lomba Castro, P. Vazquez Regueiro, Tatiana Ovsiannikova, Timofei Maltsev, J. Serrano, Timothy Gershon, Basem Khanji, Y. Xie, Thomas Blake, H. Schindler, Marek Idzik, A. Jawahery, Da Yu Tou, F. Teubert, D. Zhang, Viacheslav Matiunin, D. R. Johnson, Maciej Witold Majewski, C. R. Jones, Thomas Hadavizadeh, D. Hill, Maurizio Martinelli, S. Borghi, S. Esen, Wojciech Kucewicz, Arthur Marius Hennequin, S. Ogilvy, M. van Beuzekom, Scott Ely, Maria Elena Stramaglia, Zan Ren, Matthew Charles, Feng Jiang, Matthieu Marinangeli, Li Xu, Heather Mckenzie Wark, Matthew Scott Rudolph, Cameron Thomas Dean, B. Souza De Paula, Razvan Daniel Moise, Mika Vesterinen, Yonghui Zhou, Marco Cattaneo, Andrea Mogini, S. De Capua, Nikita Kazeev, Yuezhe Yao, Huacheng Cai, S. J. Chen, Jacopo Pinzino, Wen Chao Zhang, C. Sanchez Gras, Sara Elizabeth Mitchell, Marco Santimaria, Naomi Cooke, Flavio Pisani, Mark Slater, J. M. Yu, R. Currie, C. Sanchez Mayordomo, H. V. Cliff, Federico Alessio, Andrew Crocombe, Z. Mathe, Veronika Chobanova, Ia. Bezshyiko, W. Wislicki, Jonas Rademacker, Varvara Batozskaya, Davide Fazzini, Stephane T'Jampens, Christoph Langenbruch, S. Hansmann-Menzemer, M. Shapkin, M. R. J. Williams, Gianluigi Casse, Angelo Loi, Gerd Joachim Kunde, Anna Ossowska, Nathan Jurik, A. Schopper, M. Heß, D. Lucchesi, Nikolay Nikitin, E. Jans, Srishti Bhasin, M. S. Rangel, Liupan An, Oleksander Kot, Stefanie Reichert, l. Soares Lavra, F. F. Wilson, Diego Alejandro Milanes, S. Tolk, Vlad-Mihai Placinta, M. J. Morello, Nikolai Voropaev, P. Perret, Sergey Barsuk, François Fleuret, B. Leverington, L. Giubega, A. Oyanguren, D. Savrina, Jennifer Brigitta Zonneveld, R. Mountain, Sarah Beranek, L. Shekhtman, Qiang Xu, M. T. Tran, Jozef Tomasz Borsuk, R. Santacesaria, Gediminas Sarpis, Jiangqiao Hu, A. Dosil Suárez, Xixin Liang, Stephen M. Stahl, Brij Kishor Jashal, A. Palano, Tomasz Szumlak, Alison Tully, Anna Lupato, T. Lesiak, C. Khurewathanakul, C. Santamarina Rios, N. Neufeld, Miroslav Saur, N. Tuning, Violaine Bellee, William Dean, Titus Mombächer, Thomas Grammatico, A. Gomes, M. Patel, R. Hidalgo Charman, A. Lusiani, Federico Betti, Alex Seuthe, L. A. Granado Cardoso, Mark Hatch, Sebastien Valat, P. E. L. Clarke, Nikita Beliy, R. Vazquez Gomez, S. Monteil, George Holger Lovell, Sebastien Ponce, R. Manera Escalero, I. A. Monroy, Alessandra Gioventù, C. M. Costa Sobral, Sofia Kotriakhova, M. van Veghel, G. Martellotti, Matthieu Kecke, L. Garrido, Loris Martinazzoli, Ao Xu, S. Vecchi, Kayleigh Anne Thomson, M. Rotondo, Renata Kopecna, G. Carboni, Daniele Manuzzi, Mara Senghi Soares, J. García Pardiñas, R. Lindner, Elisabeth Maria Niel, Alex Birnkraut, Anastasiia Kharisova, Federico Lazzari, N. K. Watson, Marie Helene Schune, D. Tonelli, T. J. V. Bowcock, James Vincent Mead, A. C. dos Reis, T. Gys, Johannes Heuel, Manuel Schiller, Sebastian Schulte, Maria Flavia Cicala, D. E. Hutchcroft, R. Jacobsson, Rafal Dominik Krawczyk, Lauren Douglas, Victor Coco, Zhuoming Li, Alessio Piucci, Yasmine Amhis, Albert Comerma-Montells, Elie Aslanides, Thibaud Humair, W. D. Hulsbergen, Konstantinos Petridis, J. A. Rodriguez Lopez, Alexandru Ene, E. Thomas, Florian Lemaitre, Y. N. Gao, Marcel Materok, Julien Cogan, Lennaert Bel, Gabriela Johanna Pomery, G. Alkhazov, U. Egede, Michael McCann, Pavol Stefko, P. Di Nezza, W. Huang, S. Klaver, J. J. Saborido Silva, Nikolay Bondar, Wojciech Krupa, Mikhail Hushchyn, M. Ramos Pernas, Mark Richard James Williams, Mikhail Zavertyaev, Nicola Skidmore, G. Manca, O. Schneider, Natalia Polukhina, Alexander Vagner, Xuhao Yuan, Jiayin Sun, Matteo Bartolini, J. H. Lopes, Zhipeng Tang, Wenhua Hu, Y. Zhang, Malgorzata Pikies, S. Blusk, Anna Danilina, Saverio Mariani, Vukan Jevtic, O. V. Mineev, M. Morandin, Samuel Belin, U. Uwer, M. Mukherjee, Cedric Meaux, Arseniy Vitkovskiy, A. Brossa Gonzalo, P. Gironella Gironell, Patrick Owen, Adam Dendek, B. Garcia Plana, D. Martinez Santos, L. Kravchuk, Simon Stemmle, O. De Aguiar Francisco, B. Sanmartin Sedes, E. van Herwijnen, Sune Jakobsen, R. Matev, Sophie Katharina Kretzschmar, M. Calvo Gomez, A. A. Alves, B. Rachwal, Victor Egorychev, M. Vernet, M. Xu, M. Ravonel Salzgeber, Ph. Ghez, Axel Kevin Kuonen, R. Ekelhof, Vladimir Gligorov, P. Gandini, Alessandro Cardini, J. M. De Miranda, Luca Pescatore, D. Campora Perez, Maciej Wojciech Dudek, G. Corti, Adam Davis, Marcin Chrzaszcz, V. Kudryavtsev, D. R. Ward, Karol Hennessy, Martin Stefan Bieker, Alessandro Camboni, K. M. Fischer, Fedor Baryshnikov, S. Playfer, Frank Ferrari, Daniel Charles Craik, Donal Murray, Dominik Stefan Mitzel, Gianfranco Morello, Preema Rennee Pais, Pawel Kopciewicz, James Mwangi Kariuki, A. Sciubba, J. D. Osborn, Tengiz Kvaratskheliya, J. Z. Fan, Mark Whitehead, Lucas Mcconnell, Semen Eidelman, T. E. Latham, A. Romero Vidal, Constantin Weisser, Vladimir Shevchenko, Olivier Göran Girard, L. G. Scantlebury Smead, Igor Skiba, Sean Benson, R. McNulty, P. Krokovny, Claudio Gotti, U. Straumann, Eduardo Rodrigues, Dominik Müller, Chung Nguyen-Mau, J. M. Otalora Goicochea, Piera Muzzetto, Wolfgang Funk, B. R. Gruberg Cazon, J. Marks, Antje Mödden, H.-P. Dembinski, R. Dzhelyadin, A. Lai, Wander Baldini, Victor Renaudin, P. Alvarez Cartelle, E. Tournefier, Stanislav Poslavskii, David Gerick, J. Ruiz Vidal, L. Tomassetti, Adam Szabelski, A. Ukleja, Sandra Amato, C. Lazzeroni, Gregory Ciezarek, Samuel Coquereau, Matthew George Chapman, G. Wilkinson, Emilie Maurice, S. Gallorini, L. Ferreira Lopes, A. Casais Vidal, M. Straticiuc, S. Stracka, B. Quintana, Barbara Sciascia, G. A. Cowan, Michal Dziewiecki, Emilie Bertholet, Margarita Stepanova, H. Li, Xiao-yan Li, G. Cavallero, C. Vázquez Sierra, V. Vagnoni, E. Luppi, F. J. P. Soler, S. C. Haines, A. Hicheur, Martino Borsato, Andrea Mauri, Wenbin Qian, R. Schwemmer, R. Silva Coutinho, Ryan Newcombe, M. De Serio, D. Lacarrere, C. L. Da Silva, Evgenii Shmanin, Olivier Deschamps, Niklas Stefan Nolte, Alexander Baranov, Jeremy Dalseno, K. Belous, Antonio Pellegrino, Hangyi Wu, Kurt Rinnert, Lukas Gruber, Jolanta Brodzicka, S. Karodia, Biljana Mitreska, Chenxi Gu, P. Griffith, F. Redi, Paolo Ciambrone, E. Santovetti, R. Le Gac, Xiao-Rui Lyu, Jordan Daniel Roth, Dmitrii Pereima, Hossein Afsharnia, V. Franco Lima, Marco Adinolfi, E. Polycarpo, Tatsuya Nakada, Konrad Klimaszewski, Anatoly Konoplyannikov, K. Carvalho Akiba, Lars Eklund, K. Wyllie, Lucia Grillo, B. Pietrzyk, Zhiyu Xiang, C. Matteuzzi, A. McNab, Laurent Dufour, Vanessa Müller, I. Longstaff, Roland Bernet, Milosz Zdybal, G. Bencivenni, John Matthew Durham, S. Filippov, F. Martinez Vidal, X. Cid Vidal, F. Muheim, Ziad Ajaltouni, Fedor Ratnikov, Matthew James Tilley, Nathanael Farley, J. van Tilburg, Carmen Giugliano, Nicola Neri, Andrea Bizzeti, V. Vorobyev, M. Witek, M. Romero Lamas, M. Ferro-Luzzi, Aravindhan Venkateswaran, Tobias Tekampe, Jia-Jia Qin, Carmelo D'Ambrosio, Jean François Marchand, M. Needham, Guillaume Pietrzyk, Igor Kostiuk, A. Fernandez Prieto, Michele Atzeni, A. Trisovic, M. Karacson, John Gordon Smeaton, M. Veltri, G. Haefeli, Alexander Inyakin, Qundong Han, Emmy Gabriel, M. Merk, Y. H. Zheng, Michele Piero Blago, Daniel Vieira, Ming Zeng, Tommaso Pajero, R. Cenci, L. L. Pappalardo, J. Jalocha, Benedetto Gianluca Siddi, Tjeerd Ketel, Dawid Gerstel, Eluned Smith, G. Liu, Andreas Güth, Jascha Peter Grabowski, J. Maratas, Moran Wang, Ifan Williams, Margarete Schellenberg, Peter Svihra, X. Han, Salvatore Aiola, Philip Ilten, Yu. Guz, Jonathan Plews, Oleg Stenyakin, C. Fitzpatrick, C. A. Aidala, L. Del Buono, T. D. Nguyen, Andrea Merli, Jacopo Cerasoli, Sergey Didenko, C. J. G. Onderwater, Alexander Inglessi, Simone Bifani, Sophie Richards, Malte Hecker, Johannes Albrecht, Andrii Usachov, Marco Pappagallo, Malcolm John, Dmitrii Maisuzenko, Hans Dijkstra, Konstantin Gizdov, Wiktor Byczynski, Maxim Borisyak, Yuyue Gan, P. Durante, A. Alfonso Albero, G. Wormser, P. De Simone, Elena Graverini, Roberta Cardinale, Guido Andreassi, C. Gaspar, Sebastian Neubert, Louis Henry, Hilbrand Steffen Kuindersma, Valery Pugatch, J. Fu, Martha Hilton, F. Archilli, Yiheng Luo, B. Malecki, Andrea Valassi, Agnieszka Oblakowska-Mucha, M. Gandelman, N. Sagidova, Svende Braun, B. Spaan, V. Belavin, Murdo Traill, Tomasz Fiutowski, Almagul Kondybayeva, D. Hynds, D. Galli, Alex Pearce, Paul Seyfert, P. Collins, Y. Sun, Slavomira Stefkova, Marina Artuso, E. Gushchin, Pietro Albicocco, P. Billoir, Emanuele Michielin, Deepanwita Dutta, Tara Nanut, J. Garra Tico, Vladimir Romanovskiy, C. Chen, A. Zhelezov, Stephan Escher, J. Closier, A. Massafferri, Emma Buchanan, Daniele Marangotto, Patrick Koppenburg, G. Tellarini, Markus Frank, Mohamad Kozeiha, Andreas Weiden, R. Nandakumar, Karlis Dreimanis, R. Calabrese, M. De Cian, Hongjie Mu, Jakub Moron, Kodassery Prasanth, Vladimir Macko, I. Nasteva, Vladislav Balagura, Zehua Xu, A. Leflat, G. Punzi, Gennady Panshin, Xavier Vilasis-Cardona, M. Poli Lener, M. Winn, M. Pepe Altarelli, Thomas Harrison, Edward James Millard, Marco Gersabeck, I. V. Gorelov, K. Müller, Giovanni Bassi, M. Rama, F. Fontanelli, Michele Veronesi, Roel Aaij, Vadym Denysenko, Renato Quagliani, C. Göbel, S. Kandybei, J. A. B. Coelho, P. Spradlin, T. Kirn, P. R. Li, A. Dziurda, R. Graciani Diaz, Claire Prouve, Vincenzo Battista, S. Perazzini, M. Franco Sevilla, Alexey A. Petrov, Alexey Boldyrev, Nis Meinert, Michal Kreps, Sergey Strokov, C. Marin Benito, Dmitry Popov, Simon Akar, Stefano Petrucci, Kenenbek Arzymatov, B. D. C. Westhenry, Sandro Cadeddu, Alexander Semennikov, Fabrice Desse, L. Zhang, Christoph Hasse, Christopher Burr, D. Vom Bruch, Neville Harnew, Maciej Pawel Szymanski, David Loh, A. Dovbnya, Joseph David Shupperd, J. J. Walsh, Davide Lancierini, B. Jost, S. Farry, A. Bay, Hanna Malygina, Daniel Patrick O'Hanlon, G. Tuci, B. T. Meadows, J. Arnau Romeu, D. Melnychuk, X. J. Zhou, Kevin Heinicke, Kara Renee Mattioli, M. Cruz Torres, E. Grauges, M. Dorigo, G. Raven, D. Decamp, A. Golutvin, Alexander Bondar, M. D. Sokoloff, H. W. Van Hecke, Marco Clemencic, Luyan Sun, Thomas Ackernley, M. Tobin, S.-G. Chitic, Adam Benjamin Morris, Georgios Chatzikonstantinidis, Samuel Maddrell-Mander, S. Ferreres Sole, A. G. Morris, Mikkel Bjørn, F. A. Garcia Rosales, O. Steinkamp, V. Gibson, S. Meloni, E. Dall'Occo, Krzysztof Swientek, Silvia Gambetta, L. De Paula, Baasansuren Batsukh, Franco Bedeschi, A. Vollhardt, A. Bursche, Christopher Parkes, G. D. Lafferty, S. Ricciardi, Felix Johannes Kress, Federica Lionetto, Shantam Taneja, Moritz Demmer, Kristian Alexander Zarebski, Michael Alexander, P. Fernandez Declara, K. De Bruyn, S. Sellam, Thomas Henry Hancock, E. Spadaro Norella, Christoph Frei, Federico Cindolo, Roger Forty, Timon Schmelzer, T. Ruf, Y. Li, Alexander Battig, Roman Greim, S. Roiser, F. Stagni, Giulio Dujany, Phoebe Meredith Hamilton, Jan Buytaert, G. Lanfranchi, M.-N. Minard, A. Vorobyev, F. Dordei, M. Plo Casasus, Ryan Calladine, Plamen Hristov Hopchev, Floris Keizer, L. R. Madhan Mohan, E. Cogneras, Giovanni Passaleva, S. A. Wotton, John Jake Lane, Rudolf Oldeman, Oliver Lupton, A. Gallas Torreira, Simon Nieswand, Annarita Buonaura, Valery Zhukov, S. Simone, Christopher Betancourt, A. Satta, J. A. de Vries, C. Satriano, A. Contu, Olivier Leroy, B. Schmidt, Ivan Belyaev, A. Artamonov, M. Boubdir, D. Wiedner, Iwan Thomas Smith, A. Dzyuba, Guillermo Loustau, A. Di Canto, Tara Shears, L. Silva de Oliveira, Anton Poluektov, Lorenzo Sestini, Anita Nandi, E. Govorkova, Harald Viemann, Blaise Delaney, Laura Promberger, Alessio Sarti, M. Fiorini, P. d'Argent, C. Bozzi, Daniel Berninghoff, A. Heister, A. Puig Navarro, Luca Minzoni, Dylan Jaide White, Y. Wang, C. Haen, Holger Stevens, Hang Yin, Giulio Gazzoni, O. Boente Garcia, Artem Maevskiy, C. B. Van Hulse, Achille Stocchi, Alexander D. Popov, V. Chekalina, Oleg Yushchenko, O. Maev, R. J. Barlow, Abhijit Mathad, Marta Calvi, Tomasz Skwarnicki, Sebastian Bachmann, P. Santangelo, V. Obraztsov, J. V. Viana Barbosa, M. Lucio Martinez, Stephan Eisenhardt, Ivan Polyakov, F. Maciuc, Zishuo Yang, M. Palutan, M. O. Bettler, Gianni Penso, Dana Bobulska, P. Naik, Mauricio Féo, M. Vieites Diaz, Lucio Anderlini, Pietro Marino, M. Schmelling, Xiaofeng Zhu, C. Remon Alepuz, A. Papanestis, A. Grecu, Andrey Ustyuzhanin, J. J. Back, Bernardo Adeva, Dong Xiao, Ph. Charpentier, Alexander Malinin, Janine Müller, Thomas N. Williams, Francesco Dettori, A. B. Rodrigues, A. Falabella, Biagio Saitta, Serhii Koliiev, Alexandra Paige Rollings, John Leslie Cobbledick, G. Simi, Lucian Cojocariu, Mark Smith, A. Bertolin, Aleksei Chernov, Biplab Dey, Serena Maccolini, K. E. Kim, William Parker, F. Polci, Vitalii Lisovskyi, David Anthony Friday, Jakub Ryzka, Robert Hart, Timothy Evans, Davide Brundu, Colm Harold Murphy, Arnaud Robert, Stefano Cali, George Coombs, C. Patrignani, Markus Roehrken, V. Tisserand, M. Andreotti, Alexsei Chubykin, Marianna Fontana, Patrick Robbe, M. Brodski, Phillip John Marshall, Wojciech Krzemien, Evelina Gersabeck, Benjamin Audurier, Denis Derkach, F. Ferreira Rodrigues, H. F. Schreiner, Nicola Serra, Andrew Beiter, U. Marconi, Balazs Voneki, G. Mancinelli, Antonino Sergi, T. Boettcher, Alessandro Pastore, Zhenzi Wang, Veronica Soelund Kirsebom, A. Brea Rodriguez, D. Websdale, L. M. Garcia Martin, B. Couturier, R. A. Fini, C. Abellán Beteta, S. Schael, A. Tsaregorodtsev, Xia-Ji Liu, Frederic Machefert, Sheldon Stone, C. Hadjivasiliou, Ross John Hunter, Michael Becker, Dmitry Golubkov, Stefano Zucchelli, V. Bocci, Patrick Mackowiak, D. Pinci, Jihyun Bhom, Mariia Poliakova, Simon Baker, William Barter, and Martina Pili
Subjects: Baryon, Nuclear physics, Physics, Superposition principle, Excited state, 0103 physical sciences, Degenerate energy levels, Spectrum (functional analysis), General Physics and Astronomy, 010306 general physics, 01 natural sciences, Luminosity, Interpretation (model theory)
Abstract: We report the observation of a new structure in the Λb0π+π- spectrum using the full LHCb data set of pp collisions, corresponding to an integrated luminosity of 9 fb-1, collected at s=7, 8, and 13 TeV. A study of the structure suggests its interpretation as a superposition of two almost degenerate narrow states. The masses and widths of these states are measured to be mΛb(6146)0=6146.17±0.33±0.22±0.16 MeV,mΛb(6152)0=6152.51±0.26±0.22±0.16 MeV,ΓΛb(6146)0=2.9±1.3±0.3 MeV,ΓΛb(6152)0=2.1±0.8±0.3 MeV,with a mass splitting of Δm=6.34±0.32±0.02 MeV, where the first uncertainty is statistical, the second systematic. The third uncertainty for the mass measurements derives from the knowledge of the mass of the Λb0 baryon. The measured masses and widths of these new excited states suggest their possible interpretation as a doublet of Λb(1D)0 states.
Published: 2019
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129. Structural, vibrational and electrical properties of type-II Dirac semimetal PtSe

Author: Chao, An, Xuliang, Chen, Yonghui, Zhou, Ying, Zhou, Bowen, Zhang, Chunhua, Chen, Yifang, Yuan, Ranran, Zhang, Lili, Zhang, Xiangde, Zhu, and Zhaorong, Yang
Abstract: We present a high-pressure study of type-II Dirac semimetal PtSe
Published: 2019

130. Effect of PVC film pretreatment on performance and lamination of wood-plastic composite plywood

Author: Zeng Qinzhi, Mizi Fan, Gao Yanlong, Jiuping Rao, Chen Nairong, Xinglai Qi, Li Zhihui, and Yonghui Zhou
Subjects: Materials science, General Chemical Engineering, medicine.medical_treatment, Perforation (oil well), Composite number, Wood-plastic composite, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Hot pressing, 01 natural sciences, 0104 chemical sciences, law.invention, Polyvinyl chloride, chemistry.chemical_compound, chemistry, law, Lamination, medicine, Veneer, Composite material, 0210 nano-technology, Punching
Abstract: In order to solve the practical problem of heat transfer during the hot pressing process of a novel wood-plastic composite plywood, this paper investigates the perforation treatment of polyvinyl chloride (PVC) plastic films and their plywood composites. The PVC films were pretreated by the physical punching method, and the effects of PVC perforation diameter, hot pressing time and hot pressing temperature on the mechanical properties of the plywood composites were investigated by orthogonal experimental design. The results showed that the optimum hot pressing time was 7 min, the hot pressing temperature was 170 °C, and the PVC perforation diameter was 15 mm for the optimum mechanical properties. The punching pretreatment of PVC films gave rise to a reduction of the hot pressing time by 51 s due to improved heat transfer and heat loss by 5.06%, and allowed an increase in the initial moisture content of the veneer by 2–3%, thereby cutting down the drying cost in the veneer production process, which is conducive to energy conservation and environmental protection. Science & Technology Program in Fujian Province of China; Science & Technology Innovation Program in Fujian Agriculture and Forestry University of China
Published: 2019

131. Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC

Author: Beat Jost, L. A. Granado Cardoso, V. Rives Molina, F. Rethore, Mike Williams, Christopher Burr, Sevda Esen, Simone Stracka, J. Prisciandaro, Olivier Leroy, C. Weisser, Joel Closier, Regis Lefèvre, Maximilien Chefdeville, W. Hu, Johannes Albrecht, G. Sarpis, A. Puig Navarro, Conor Fitzpatrick, Agnieszka Dziurda, M. Daoudi, Francesca Dordei, Marie-Noelle Minard, Clara Gaspar, M. Whitehead, M. Calvo Gomez, E. E. Bowen, C. Linn, I. Guz, Christopher Jones, Pascal Perret, A. Usachov, Philippe d'Argent, Paolo Durante, Zhiyu Xiang, Rosen Matev, Y.Y. Li, J. Serrano, M. Stahl, P. Ciambrone, Lucia Grillo, William Barter, R. Vazquez Gomez, Mark Smith, Frederic Machefert, Silvia Borghi, S. Maddrell-Mander, Lucio Anderlini, Julien Cogan, Niko Neufeld, Sebastian Neubert, Barbara Storaci, Paras Naik, Jibo He, Michael Joseph Morello, M. van Veghel, Giampiero Mancinelli, Vladimir Gligorov, S. Benson, D. Gerstel, P.-Y. Duval, M. Traill, Francesco Polci, S. Valat, Michael Andreas Winn, Giulio Dujany, Hang Yin, Patrick Koppenburg, Michael Sokoloff, R. Le Gac, Laurent Dufour, Paul Seyfert, U. Marconi, M. De Cian, M. Martinelli, L. Brarda, Ph. Ghez, Marie Helene Schune, G. Raven, Markus Frank, A. Alfonso Albero, Mika Vesterinen, Olivier Deschamps, Alexander Baranov, Michael Alexander, Karlis Dreimanis, S. Stahl, Y. Zhang, E. Govorkova, E. Michielin, B. Voneki, A. Solomin, F. Hachon, Ao Xu, Matthew Kenzie, Zehua Xu, Donal Hill, Elisabeth Maria Niel, Oliver Lupton, F. Sborzacchi, B. Sciascia, Matthew George Chapman, M. Ramos Pernas, Jean François Marchand, P. Robbe, Alex Pearce, D. Martinez Santos, Roel Aaij, Daniel Johnson, Thomas Boettcher, Michal Kreps, C. Marin Benito, Simon Akar, S. Amerio, Yonghui Zhou, Marco Cattaneo, P. Spradlin, Marco Clemencic, Benjamin Couturier, L. Douglas, Wouter Hulsbergen, J.-P. Cachemiche, K. De Bruyn, H. Chanal, K. Gizdov, Philip Ilten, Francesco Dettori, Mariusz Witek, M. Fontanna, M. H.L.S. Wang, Adam Benjamin Morris, Rainer Schwemmer, H. Mohamed, S. G. Chitic, M. Chebbi, D. Bobulska, S. Monteil, Manuel Schiller, Claire Prouve, Maciej Pawel Szymanski, R. Kopecna, Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes (UGA), LHCb, Aaij, R, Akar, S, Albrecht, J, Alexander, M, Albero, A, Amerio, S, Anderlini, L, D'Argent, P, Baranov, A, Barter, W, Benson, S, Bobulska, D, Boettcher, T, Borghi, S, Bowen, E, Brarda, L, Burr, C, Cachemiche, J, Gomez, M, Cattaneo, M, Chanal, H, Chapman, M, Chebbi, M, Chefdeville, M, Ciambrone, P, Cogan, J, Chitic, S, Clemencic, M, Closier, J, Couturier, B, Daoudi, M, Bruyn, K, Cian, M, Deschamps, O, Dettori, F, Dordei, F, Douglas, L, Dreimanis, K, Dufour, L, Dujany, G, Durante, P, Duval, P, Dziurda, A, Esen, S, Fitzpatrick, C, Fontanna, M, Frank, M, Veghel, M, Gaspar, C, Gerstel, D, Ghez, P, Gizdov, K, Gligorov, V, Govorkova, E, Cardoso, L, Grillo, L, Guz, I, Hachon, F, He, J, Hill, D, Hu, W, Hulsbergen, W, Ilten, P, Li, Y, Linn, C, Lupton, O, Johnson, D, Jones, C, Jost, B, Kenzie, M, Kopecna, R, Koppenburg, P, Kreps, M, Gac, R, Lefevre, R, Leroy, O, Machefert, F, Mancinelli, G, Maddrell-Mander, S, Marchand, J, Marconi, U, Benito, C, Martinelli, M, Santos, D, Matev, R, Michielin, E, Monteil, S, Morris, A, Minard, M, Mohamed, H, Morello, M, Naik, P, Neubert, S, Neufeld, N, Niel, E, Pearce, A, Perret, P, Polci, F, Prisciandaro, J, Prouve, C, Navarro, A, Pernas, M, Raven, G, Rethore, F, Molina, V, Robbe, P, Sarpis, G, Sborzacchi, F, Schiller, M, Schwemmer, R, Sciascia, B, Serrano, J, Seyfert, P, Schune, M, Smith, M, Solomin, A, Sokoloff, M, Spradlin, P, Stahl, M, Stahl, S, Storaci, B, Stracka, S, Szymanski, M, Traill, M, Usachov, A, Valat, S, Gomez, R, Vesterinen, M, Voneki, B, Wang, M, Weisser, C, Whitehead, M, Williams, M, Winn, M, Witek, M, Xiang, Z, Xu, A, Xu, Z, Yin, H, Zhang, Y, Zhou, Y, LHCb Collaboration, (Astro)-Particles Physics, Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Annecy de Physique des Particules (LAPP), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Aaij, R., Akar, S., Albrecht, J., Alexander, M., Albero, A. Alfonso, Amerio, S., Anderlini, L., D'Argent, P., Baranov, A., Barter, W., Benson, S., Bobulska, D., Boettcher, T., Borghi, S., Bowen, E. E., Brarda, L., Burr, C., Cachemiche, J-P, Calvo Gomez, M., Cattaneo, M., Chanal, H., Chapman, M., Chebbi, M., Chefdeville, M., Ciambrone, P., Cogan, J., Chitic, S-G, Clemencic, M., Closier, J., Couturier, B., Daoudi, M., De Bruyn, K., De Cian, M., Deschamps, O., Dettori, F., Dordei, F., Douglas, L., Dreimanis, K., Dufour, L., Dujany, G., Durante, P., Duval, P-Y, Dziurda, A., Esen, S., Fitzpatrick, C., Fontanna, M., Frank, M., Van Veghel, M., Gaspar, C., Gerstel, D., Ghez, Ph, Gizdov, K., Gligorov, Vv, Govorkova, E., Granado Cardoso, L. A., Grillo, L., Hachon, F., He, J., Hill, D., Hu, W., Hulsbergen, W., Ilten, P., Li, Y., Linn, C. P., Lupton, O., Johnson, D., Jones, C. R., Jost, B., Kenzie, M., Kopecna, R., Koppenburg, P., Kreps, M., Le Gac, R., Lefevre, R., Leroy, O., Machefert, F., Mancinelli, G., Maddrell-Mander, S., Marchand, J. F., Marconi, U., Benito, C. Marin, Martinelli, M., Martinez Santos, D., Matev, R., Michielin, E., Monteil, S., Morris, A., Minard, M-N, Mohamed, H., Morello, M. J., Naik, P., Neubert, S., Neufeld, N., Niel, E., Pearce, A., Perret, P., Polci, F., Prisciandaro, J., Prouve, C., Navarro, A. Puig, Ramos Pernas, M., Raven, G., Rethore, F., Rives Molina, V, Robbe, P., Sarpis, G., Sborzacchi, F., Schiller, M., Schwemmer, R., Sciascia, B., Serrano, J., Seyfert, P., Schune, M-H, Smith, M., Solomin, A., Sokoloff, M., Spradlin, P., Stahl, M., Stahl, S., Storaci, B., Stracka, S., Szymanski, M., Traill, M., Usachov, A., Valat, S., Vazquez Gomez, R., Vesterinen, M., Voneki, B., Wang, M., Weisser, C., Whitehead, M., Williams, M., Winn, M., Witek, M., Xiang, Z., Xu, A., Xu, Z., Yin, H., Zhang, Y., and Zhou, Y.
Subjects: Technology, Physics - Instrumentation and Detectors, Calibration (statistics), Performance of High Energy Physics Detector, performance [LHC-B], Particle Physics, Trigger, Detector Alignment, 01 natural sciences, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), off-line, 0302 clinical medicine, Software, calibration [detector], scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], detector: calibration, Detectors and Experimental Techniques, physics.ins-det, Instrumentation, Instruments & Instrumentation, Mathematical Physics, QC, Large detector-systems performance, Physics, Large Hadron Collider, Detector, Instrumentation and Detectors (physics.ins-det), detector: alignment, Trigger algorithms, Nuclear & Particles Physics, CERN LHC Coll, LHC-B: performance, Trigger concepts and systems (hardware and software), colliding beams [p p], Particle Physics - Experiment, Particle physics, p p: scattering, 0299 Other Physical Sciences, Real-time computing, FOS: Physical sciences, programming, 03 medical and health sciences, SDG 17 - Partnerships for the Goals, 0103 physical sciences, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], systems (hardware and software), Trigger concepts and, Science & Technology, hep-ex, 010308 nuclear & particles physics, business.industry, efficiency [trigger], Software deployment, trigger: efficiency, Performance of High Energy Physics Detectors, business, p p: colliding beams, alignment [detector], experimental results
Abstract: The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the high-level physics objects produced during real-time processing, this redesign enabled the widespread deployment of real-time analysis during Run 2. We describe the design of the Run 2 trigger and real-time reconstruction, and present data-driven performance measurements for a representative sample of LHCb's physics programme., 46 pages, 35 figures, 1 table. All figures and tables are available at https://cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-DP-2019-001.html
Published: 2019
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132. Pressure-induced evolution of structural and electronic properties in TiTe2

Author: Bowen Zhang, Chuanchuan Gu, Yonghui Zhou, Xiaoping Yang, Zhaorong Yang, Chao An, Lili Zhang, Chunhua Chen, Ying Zhou, Xiangde Zhu, Xuliang Chen, Hao Wu, Yifang Yuan, and Ranran Zhang
Subjects: Diffraction, Physics, Superconductivity, Anderson localization, Condensed matter physics, Hall effect, High pressure, Electron, Monoclinic crystal system, Electronic properties
Abstract: Bulk $1T\text{\ensuremath{-}}\mathrm{TiT}{\mathrm{e}}_{2}$ (hexagonal, space group P-$3m1$) exhibits semimetallic conductivity with weak Anderson localization characteristic at ambient pressure, but superconductivity under high pressure of $\ensuremath{\sim}5\phantom{\rule{0.16em}{0ex}}\mathrm{GPa}$. Here the detailed evolutions of structural and transport properties in $\mathrm{TiT}{\mathrm{e}}_{2}$ during compression are investigated by extending pressure up to 50.2 GPa. The combined high-pressure electrical transport and synchrotron x-ray diffraction experiments unravel two critical pressure points. At ${P}_{c1}\ensuremath{\sim}5.4\phantom{\rule{0.16em}{0ex}}\mathrm{GPa}$, the superconductivity emerges, which is accompanied by a structural transition from $P\text{\ensuremath{-}}3m1$ to a mixture of $P\text{\ensuremath{-}}3m1$ and monoclinic $C2/m$ phase. The localization effect maintains until the structural transition is over at ${P}_{c2}\ensuremath{\sim}19.1\phantom{\rule{0.16em}{0ex}}\mathrm{GPa}$, meanwhile the Hall coefficient ${R}_{\mathrm{H}}$ changes from positive to negative. Our results demonstrate that the superconductivity in the pressurized $\mathrm{TiT}{\mathrm{e}}_{2}$ can be assigned to the high-pressure $C2/m$ phase which is electron dominated.
Published: 2019
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133. Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films

Author: Oleksandr Onufriienko, Peter Samuely, Horst-Günter Rubahn, Svetlana Korneychuk, Yonghui Zhou, Gufei Zhang, Paul W May, Zhaorong Yang, Johan Verbeeck, Zheng Xu, Victor Moshchalkov, Xuefeng Zhang, Liwang Liu, and Tomas Samuely
Subjects: Superconductivity, Technology, DIAMOND THIN-FILMS, Materials science, Science & Technology, Physics and Astronomy (miscellaneous), Condensed matter physics, Physics, Materials Science, Materials Science, Multidisciplinary, 02 engineering and technology, Josephson coupling, 021001 nanoscience & nanotechnology, 01 natural sciences, Superconductor Insulator Transition, Quantum dot, High pressure, Condensed Matter::Superconductivity, 0103 physical sciences, General Materials Science, Grain boundary, 010306 general physics, 0210 nano-technology, Nanodiamond, Coherence (physics)
Abstract: © 2019 American Physical Society. We report on the pressure-driven superconductor-insulator transition in heavily boron-doped nanodiamond films. By systematically increasing the pressure, we suppress the Josephson coupling between the superconducting nanodiamond grains. The diminished intergrain coupling gives rise to an overall insulating state in the films, which is interpreted in the framework of a parallel-series circuit model to be the result of bosonic insulators with preserved localized intragrain superconducting order parameters. Our investigation opens up perspectives for the application of high pressure in research on quantum confinement and coherence. Our data unveil the percolative nature of the electrical transport in nanodiamond films, and highlight the essential role of grain boundaries in determining the electronic properties of this material. ispartof: PHYSICAL REVIEW MATERIALS vol:3 issue:3 status: published
Published: 2019
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134. Pressure-induced irreversible evolution of superconductivity in PdBi2

Author: Chao An, Jiyong Yang, Ying Zhou, Xuliang Chen, Yonghui Zhou, Zhaorong Yang, Mingliang Tian, Chunhua Chen, Zhitao Zhang, Langsheng Ling, and Lili Zhang
Subjects: Physics, Crystal, Superconductivity, Crystallography, Condensed Matter::Superconductivity, 0103 physical sciences, 02 engineering and technology, Pressure dependence, 021001 nanoscience & nanotechnology, 010306 general physics, 0210 nano-technology, 01 natural sciences, Maximum pressure
Abstract: Both $\ensuremath{\alpha}\text{\ensuremath{-}}\mathrm{PdB}{\mathrm{i}}_{2}$ and $\ensuremath{\beta}\text{\ensuremath{-}}\mathrm{PdB}{\mathrm{i}}_{2}$ are superconductors with topological nontrivial signs. Here we report that the $\ensuremath{\alpha}\text{\ensuremath{-}}\mathrm{PdB}{\mathrm{i}}_{2}$ superconductor is converted by pressure into the \ensuremath{\beta}-phase superconducting polymorph, with the superconductivity being further enhanced upon decompression. Through high-pressure resistance and synchrotron x-ray-diffraction experiments, we show that the \ensuremath{\alpha} phase transforms into the \ensuremath{\beta} phase at ${P}_{c}\ensuremath{\sim}8$ GPa, above which the superconductivity is robust up to the maximum pressure investigated in this work. More interestingly, when the applied pressure is gradually released from 42.9 down to 1.7 GPa, the ${T}_{c}$ increases monotonously from 2.5 to 4.0 K. We argue that the observed unusual evolution of superconductivity can be explained by combination of pressure-manipulated crystal quality and the pressure dependence of ${T}_{c}$ of the $\ensuremath{\beta}\text{\ensuremath{-}}\mathrm{PdB}{\mathrm{i}}_{2}$ superconductor.
Published: 2019
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135. Measurement of the $\eta_c(1S)$ production cross-section in $pp$ collisions at $\sqrt{s} = 13$ TeV

Author: C. Sanchez Mayordomo, H. V. Cliff, Federico Alessio, Vladimir Macko, I. Nasteva, Sarah Beranek, O. Maev, Abhijit Mathad, Tomasz Skwarnicki, H. F. Schreiner, Sebastian Bachmann, Qiang Xu, M. T. Tran, I. A. Monroy, Balazs Voneki, Alessandro Pastore, Zhenzi Wang, V. Obraztsov, Veronica Soelund Kirsebom, M. Lucio Martinez, Stephan Eisenhardt, Simon Nieswand, Annarita Buonaura, Valery Zhukov, S. Simone, Christopher Betancourt, A. Satta, M. Patel, R. Hidalgo Charman, Anastasiia Kharisova, Federico Lazzari, Elie Aslanides, Ivan Polyakov, F. Maciuc, Daniel Berninghoff, L. Ferreira Lopes, A. Dovbnya, J. J. Walsh, Davide Lancierini, Daniel Patrick O'Hanlon, G. Mancinelli, Antonino Sergi, T. Boettcher, A. Brea Rodriguez, Christopher Parkes, G. D. Lafferty, J. A. de Vries, C. Satriano, A. Contu, Samuel Coquereau, G. Wilkinson, Hangyi Wu, A. Heister, N. K. Watson, Marie Helene Schune, D. Tonelli, James Vincent Mead, U. Egede, S. Esen, J. H. Lopes, Zhipeng Tang, Luca Minzoni, Dylan Jaide White, D. Websdale, L. M. Garcia Martin, B. Couturier, R. A. Fini, C. Abellán Beteta, Alexander Vagner, Anna Danilina, Cedric Meaux, Simon Stemmle, Samuel Belin, Arseniy Vitkovskiy, A. Romero Vidal, Constantin Weisser, H. Li, Jonas Rademacker, Wenhua Hu, Y. Zhang, Malgorzata Pikies, S. Blusk, Saverio Mariani, Vukan Jevtic, O. V. Mineev, Igor Kostiuk, Konstantin Gizdov, Wiktor Byczynski, S. Filippov, Olivier Leroy, P. Billoir, S. Karodia, Dmitrii Pereima, Fedor Ratnikov, J. van Tilburg, M. Ravonel Salzgeber, Sean Benson, Alessandro Camboni, K. M. Fischer, Fedor Baryshnikov, Wojciech Kucewicz, Jozef Tomasz Borsuk, Stephen M. Stahl, R. Silva Coutinho, Ryan Newcombe, Ph. Charpentier, Alexander Malinin, S. Schael, A. Tsaregorodtsev, Xia-Ji Liu, Carmelo D'Ambrosio, Jean François Marchand, Oleg Stenyakin, C. Fitzpatrick, S. Playfer, Frank Ferrari, Chung Nguyen-Mau, Evgenii Shmanin, Holger Stevens, Hang Yin, Gregory Ciezarek, L. Garrido, James Mwangi Kariuki, Frederic Machefert, Sheldon Stone, N. Neufeld, C. Haen, V. Vorobyev, H. Cai, M. Romero Lamas, M. Ferro-Luzzi, L. L. Pappalardo, L. Tomassetti, Adam Szabelski, A. Ukleja, A. Di Canto, C. Hadjivasiliou, Harris Conan Bernstein, Salvatore Aiola, Philip Ilten, U. Straumann, Xiao-yan Li, G. Cavallero, Olivier Deschamps, Niklas Stefan Nolte, Guido Andreassi, Alexander Baranov, Artem Maevskiy, X. Han, C. B. Van Hulse, Andreas Weiden, Lukas Gruber, C. A. Aidala, R. Le Gac, L. Del Buono, V. Franco Lima, Murdo Traill, O. Boente Garcia, Olivier Göran Girard, S. Gallorini, Carmen Giugliano, V. Chekalina, Alexander D. Popov, Antonio Pellegrino, Jeremy Dalseno, Agnieszka Oblakowska-Mucha, A. Trisovic, R. Santacesaria, M. Karacson, Oleg Yushchenko, Qundong Han, Sofia Kotriakhova, A. B. Rodrigues, M. Brodski, Matthew James Tilley, Nathanael Farley, Pavol Stefko, Gediminas Sarpis, David Anthony Friday, L. Zhang, J. V. Viana Barbosa, P. Griffith, M. Witek, M. Needham, C. Bozzi, A. Puig Navarro, Roberta Cardinale, Hannah Louise Pullen, J. He, Marco Santimaria, F. Redi, E. Polycarpo, Tatsuya Nakada, Paolo Ciambrone, Tara Shears, Mark Slater, N. Tuning, Konrad Klimaszewski, Anatoly Konoplyannikov, T. J. V. Bowcock, G. Bencivenni, I. Longstaff, F. Martinez Vidal, Renato Quagliani, Stefano Cali, George Coombs, Vladislav Belavin, Varvara Batozskaya, R. Currie, Surapat Ek-In, L. Silva de Oliveira, Violaine Bellee, William Dean, Alessandra Gioventù, Anton Poluektov, Lorenzo Sestini, Giulio Gazzoni, R. J. Barlow, Axel Kevin Kuonen, P. Gandini, Luca Pescatore, Adam Davis, S. Ferreres Sole, V. Gibson, Zishuo Yang, M. Palutan, J. Jalocha, Johannes Albrecht, Svende Braun, M. O. Bettler, Alex Seuthe, S. Easo, Miroslaw Firlej, G. Manca, Malcolm John, C. Göbel, Julien Cogan, Anita Nandi, E. Govorkova, Harald Viemann, M. Rotondo, C. Chen, Lauren Emma Yeomans, P. Campana, Michele Atzeni, O. Schneider, Natalia Polukhina, Nicola Serra, Tjeerd Ketel, J. Fu, S. Hansmann-Menzemer, Gerd Joachim Kunde, M. Gandelman, Renata Kopecna, Marta Calvi, M. Vieites Diaz, Lucio Anderlini, Blaise Delaney, Andrea Bizzeti, M. Shapkin, David Loh, Wander Baldini, Tatiana Ovsiannikova, M. De Cian, Victor Renaudin, P. Alvarez Cartelle, G. Liu, Gianni Penso, Sandra Amato, A. Schopper, M. Heß, L. Shekhtman, Arthur Marius Hennequin, S. Ogilvy, Sebastien Valat, Heather Mckenzie Wark, T. Ruf, Y. Li, M. Rama, F. Fontanelli, Louis Henry, Hongxi Xing, Michele Veronesi, Paolo Carniti, Meril Reboud, M. Tobin, Nikita Beliy, Andrew Beiter, Kevin Maguire, Dana Bobulska, P. Ling, M. Vernet, M. Xu, Alexander Berezhnoy, E. Gushchin, Moran Wang, R. Matev, B. Rachwal, E. Dall'Occo, Hilbrand Steffen Kuindersma, U. Marconi, Laura Promberger, Guillaume Pietrzyk, Sara Elizabeth Mitchell, Andrew Crocombe, Z. Mathe, Victor Egorychev, Oleksander Kot, Karol Hennessy, R. Mountain, P. Naik, Krzysztof Swientek, Andrea Valassi, Tara Nanut, J. Garra Tico, Jiangqiao Hu, A. Dosil Suárez, Xixin Liang, Alessio Sarti, Brij Kishor Jashal, K. Belous, Veronika Chobanova, Jolanta Brodzicka, Biljana Mitreska, Mauricio Féo, Andrii Usachov, Marco Pappagallo, Franco Bedeschi, G. Lanfranchi, M.-N. Minard, Tomasz Fiutowski, Flavio Pisani, A. Vorobyev, P. Collins, Y. Sun, F. Dordei, Slavomira Stefkova, B. Schmidt, Alison Tully, L. G. Scantlebury Smead, Mark Richard James Williams, C. Lazzeroni, Tommaso Colombo, Valeriia Zhovkovska, Cameron Thomas Dean, Daniel Vieira, Ross John Hunter, M. Fiorini, Mika Vesterinen, Paul Seyfert, R. McNulty, P. Krokovny, B. Souza De Paula, Xiaofeng Zhu, C. Remon Alepuz, A. Papanestis, Mohamad Kozeiha, Ivan Belyaev, Lennaert Bel, G. Alkhazov, Pietro Marino, M. Schmelling, Michael Becker, Dmitry Golubkov, Timothy Gershon, P. Fernandez Declara, K. De Bruyn, T. Lesiak, P. d'Argent, A. Palano, Tomasz Szumlak, Patrick Owen, Mikhail Zavertyaev, A. Grecu, L. Sun, Andrey Ustyuzhanin, J. J. Back, Victor Coco, Laurent Dufour, Miroslav Saur, Nicola Neri, G. Tellarini, Zehua Xu, Markus Frank, Ming Zeng, Tommaso Pajero, R. Cenci, M. Winn, Zhuoming Li, Albert Comerma-Montells, Margarita Stepanova, Dong Xiao, Marco Adinolfi, S. Kandybei, J. A. B. Coelho, Giovanni Passaleva, F. F. Wilson, Xavier Vilasis-Cardona, T. Kirn, Michael McCann, Nicola Skidmore, Basem Khanji, Y. Xie, Mikhail Hushchyn, A. Lusiani, E. van Herwijnen, Eduardo Rodrigues, Timon Schmelzer, Thomas Blake, H. Schindler, Marek Idzik, Stephane T'Jampens, Naomi Cooke, Michal Dziewiecki, Bernardo Adeva, T. E. Latham, A. Artamonov, Janine Müller, Yawen Wang, Sebastian Neubert, C. Vázquez Sierra, Thomas Hadavizadeh, Nikolai Voropaev, R. Ekelhof, W. Huang, Karlis Dreimanis, R. Calabrese, A. Gomes, Federico Betti, Marianna Fontana, A. Alfonso Albero, M. Mukherjee, R. Jacobsson, Rafal Dominik Krawczyk, T. Gys, Vlad-Mihai Placinta, Alexandru Ene, E. Thomas, G. Wormser, D. Campora Perez, L. A. Granado Cardoso, Chenxi Gu, P. R. Li, A. Dziurda, R. Graciani Diaz, Claire Prouve, Neville Harnew, Maciej Pawel Szymanski, E. Tournefier, Stanislav Poslavskii, Biplab Dey, Serena Maccolini, G. Valenti, Vladimir Shevchenko, Florian Lemaitre, Xuhao Yuan, Jiayin Sun, M. Boubdir, V. Kudryavtsev, Olli Lupton, V. Bocci, M. van Beuzekom, Scott Ely, Maria Elena Stramaglia, Jennifer Brigitta Zonneveld, V. V. Gligorov, P. Di Nezza, S. Klaver, K. Wyllie, B. Pietrzyk, A. Fernandez Prieto, Patrick Robbe, Alexsei Chubykin, K. Carvalho Akiba, Matteo Bartolini, Patrick Mackowiak, D. Pinci, Jihyun Bhom, Thibaud Humair, Matthieu Kecke, David Gerick, J. Ruiz Vidal, D. R. Ward, Kuzma Ivshin, Emmy Gabriel, Alexander Semennikov, Benedetto Gianluca Siddi, Phillip John Marshall, Sophie Katharina Kretzschmar, M. Calvo Gomez, J. J. Saborido Silva, Donal Murray, A. Casais Vidal, Jascha Peter Grabowski, Yuezhe Yao, Loris Martinazzoli, Ao Xu, Mara Senghi Soares, J. García Pardiñas, L. Kravchuk, R. Lindner, Maria Flavia Cicala, Davide Fazzini, Elisabeth Maria Niel, Martha Hilton, F. Archilli, Sune Jakobsen, Kurt Rinnert, Mariia Poliakova, Maciej Wojciech Dudek, G. Corti, B. Quintana, Alessandro Cardini, J. M. De Miranda, Y. N. Gao, Martin Stefan Bieker, M. Merk, Y. H. Zheng, Wojciech Krzemien, C. J. G. Onderwater, D. Wiedner, O. De Aguiar Francisco, Iwan Thomas Smith, B. Sanmartin Sedes, Simon Baker, Philipp Ibis, G. Punzi, B. Malecki, Evelina Gersabeck, Daniel Charles Craik, E. Santovetti, Gennady Panshin, M. Poli Lener, J. Maratas, Ifan Williams, Yiheng Luo, Yu. Guz, Jonathan Plews, l. Soares Lavra, Adam Dendek, B. Garcia Plana, Kevin Heinicke, Dominik Stefan Mitzel, Sergey Didenko, Kara Renee Mattioli, M. Cruz Torres, Anna Lupato, Milosz Zdybal, Simone Bifani, Mark Wilkinson, Roland Waldi, Matthew Kelsey, Jordy Sebastiaan Butter, Kevin Heijhoff, Lorenzo Capriotti, J. M. Otalora Goicochea, Piera Muzzetto, Wolfgang Funk, Alexander Inglessi, Emanuele Michielin, Deepanwita Dutta, D. Martinez Santos, J. Z. Fan, Adalberto Sciubba, Gianfranco Morello, Preema Rennee Pais, Matthew George Chapman, S. Tolk, Elena Graverini, B.R. Gruberg Cazon, Benjamin Audurier, Denis Derkach, F. Ferreira Rodrigues, Pawel Kopciewicz, John Matthew Durham, P. De Simone, Marcin Kucharczyk, Stefano Petrucci, Fabrice Desse, Claudio Gotti, Emilie Maurice, Martino Borsato, H.-P. Dembinski, B. Spaan, Mark Whitehead, S. Monteil, George Holger Lovell, Lucas Mcconnell, Semen Eidelman, R. Manera Escalero, Dominik Müller, P. Durante, Maximilien Chefdeville, Manuel Schiller, A. Jawahery, D. Hill, Maurizio Martinelli, S. Borghi, A. Dzyuba, Barbara Sciascia, Guillermo Loustau, Jordan Daniel Roth, Hossein Afsharnia, D. Zhang, S. Vecchi, Timofei Maltsev, M. R. J. Williams, J. Serrano, D. R. Johnson, J. Closier, A. Massafferri, S. Stracka, Andrea Merli, Jacopo Cerasoli, Jakub Moron, Kodassery Prasanth, C. Marin Benito, Dmitry Popov, Roel Aaij, Vadym Denysenko, Li Xu, Stephan Escher, Simon Akar, Lauren Douglas, Patrick Koppenburg, V. Vagnoni, Maciej Witold Majewski, Kenenbek Arzymatov, M. Pepe Altarelli, Vladislav Balagura, Dmitrii Maisuzenko, Hans Dijkstra, E. Luppi, Zan Ren, Razvan Daniel Moise, Mick Mulder, Alessio Piucci, V. Volkov, Yasmine Amhis, Gabriela Johanna Pomery, Emma Buchanan, Hongjie Mu, P. Spradlin, C. R. Jones, Matthew Scott Rudolph, Maxim Borisyak, C. Gaspar, A. Bay, Aravindhan Venkateswaran, Jia-Jia Qin, Andrea Mogini, S. De Capua, M. Morandin, Alexey Boldyrev, B. D. C. Westhenry, Sandro Cadeddu, Wojciech Krupa, Thomas Harrison, Nikita Kazeev, J. M. Yu, Alex Pearce, G. Tuci, B. T. Meadows, A. Leflat, F. Blanc, Z. C. Huard, R. Lefèvre, U. Uwer, G. Raven, D. Decamp, A. Golutvin, Alexander Bondar, Pietro Albicocco, Daniele Marangotto, Edward James Millard, Marco Gersabeck, William Barter, Martina Pili, D. Melnychuk, Marcin Chrzaszcz, Ia. Bezshyiko, Nikolay Nikitin, M. D. Sokoloff, Matthew Charles, X. J. Zhou, Feng Jiang, Matthieu Marinangeli, Angelo Carbone, D. Savrina, O. Steinkamp, Jaap Velthuis, Ryan Calladine, S. Meloni, Nis Meinert, Michal Kreps, Sergey Strokov, B. Jost, X. Guo, Thomas Ackernley, S. J. Chen, Jacopo Pinzino, Wen Chao Zhang, Hanna Malygina, C. Sanchez Gras, P. E. L. Clarke, G. Graziani, R. Vazquez Gomez, David Gascon, J. Wang, J. Lomba Castro, I. V. Gorelov, K. Müller, Giovanni Bassi, Plamen Hristov Hopchev, Floris Keizer, J. Arnau Romeu, A. Vollhardt, Florian Reiss, Moritz Demmer, Kristian Alexander Zarebski, S. Malde, Michael Alexander, Sebastien Ponce, Kayleigh Anne Thomson, Daniele Manuzzi, A. C. dos Reis, P. Vazquez Regueiro, H. W. Van Hecke, Viacheslav Matiunin, Yonghui Zhou, Marco Cattaneo, E. Ben-Haim, L. R. 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Bertolin, Aleksei Chernov, S. Zucchelli, K. E. Kim, William Parker, E. Grauges, F. Polci, Vitalii Lisovskyi, A. G. Morris, Silvia Gambetta, F. J. P. Soler, S. C. Haines, A. Hicheur, M. De Serio, D. Lacarrere, C. L. Da Silva, Jakub Ryzka, Robert Hart, Timothy Evans, Lucia Grillo, C. Matteuzzi, A. McNab, Roland Bernet, Davide Brundu, Colm Harold Murphy, Arnaud Robert, C. Patrignani, Markus Roehrken, V. Tisserand, M. Andreotti, Christoph Langenbruch, Gianluigi Casse, Angelo Loi, E. Jans, Srishti Bhasin, M. S. Rangel, Liupan An, R. Schwemmer, Stefanie Reichert, Sara Sellam, Diego Alejandro Milanes, M. J. Morello, P. Perret, Sergey Barsuk, Zhiyu Xiang, François Fleuret, B. Leverington, L. Giubega, A. Oyanguren, X. Cid Vidal, F. Muheim, John Gordon Smeaton, M. Veltri, G. Haefeli, Alexander Inyakin, Yuyue Gan, Valery Pugatch, Vladimir Romanovskiy, A. Zhelezov, G. Carboni, Alex Birnkraut, D. E. Hutchcroft, Marcel Materok, W. Wislicki, C. Khurewathanakul, C. Santamarina Rios, Titus Mombächer, Thomas Grammatico, M. van Veghel, G. Martellotti, W. D. Hulsbergen, M. Ramos Pernas, Konstantinos Petridis, J. A. Rodriguez Lopez, A. Brossa Gonzalo, P. Gironella Gironell, A. A. Alves, Igor Skiba, R. Dzhelyadin, A. Lai, Andrea Mauri, Wenbin Qian, Emilie Bertholet, A. Petrolini, Marco Petruzzo, Xiao-Rui Lyu, Matthew Kenzie, Marian Stahl, Naomi Veronika Raab, Da Yu Tou, F. Teubert, Tobias Tekampe, Dawid Gerstel, Eluned Smith, Sophie Richards, Malte Hecker, Almagul Kondybayeva, D. Hynds, D. Galli, Marina Artuso, Mark Hatch, C. M. Costa Sobral, Johannes Heuel, Sebastian Schulte, Nikolay Bondar, Ph. Ghez, J. D. Osborn, Tengiz Kvaratskheliya, J. Marks, Antje Mödden, M. Straticiuc, G. A. Cowan, R. Nandakumar, Vincenzo Battista, S. Perazzini, M. Franco Sevilla, Alexey A. Petrov, Joseph David Shupperd, S. Farry, M. Dorigo, L. De Paula, Baasansuren Batsukh, Felix Johannes Kress, Federica Lionetto, Shantam Taneja, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), LHCb, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Aaij, R., Beteta, C. 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Subjects: Physics and Astronomy (miscellaneous), 13000 GeV-cms, (eta/c(2980) J/psi(3100)) [mass difference], Factorization (Mathematics), measured [channel cross section], +p+anti-p%22">eta/c(2980) --> p anti-p, transverse momentum dependence, 7. Clean energy, 01 natural sciences, decay, hadronic decay [eta/c(2980)], High Energy Physics - Experiment, rapidity dependence, J/psi(3100): branching ratio, eta/c(2980): branching ratio, prompt j/psi, scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], quarkonium production, J/psi(3100): hadronic decay, Nuclear Experiment, Physics, Quantum chromodynamics, +p+anti-p%22">J/psi(3100) --> p anti-p, Large Hadron Collider, Settore FIS/01 - Fisica Sperimentale, ratio: measured [cross section], inclusive j/psi production, Quarkonium, S051.223, CERN LHC Coll, Transverse momentum, colliding beams [p p], S051.106, channel cross section: measured, Particle Physics - Experiment, direct production [eta/c(2980)], p p: scattering, Meson, Single measurement, hadronic decay [J/psi(3100)], decay modes, Nuclear physics, Factorització (Matemàtica), 0103 physical sciences, ddc:530, Rapidity, 010306 general physics, Engineering (miscellaneous), Large Hadron Collider (France and Switzerland), hep-ex, 010308 nuclear & particles physics, Branching fraction, eta/c(2980): direct production, High Energy Physics::Phenomenology, branching ratio: ratio: measured, Gran Col·lisionador d'Hadrons, dependence, LHC-B, mass difference: (eta/c(2980) J/psi(3100)), branching ratio [eta/c(2980)], cross section: ratio: measured, proton-proton collisions, High Energy Physics::Experiment, M026M, ratio: measured [branching ratio], p p: colliding beams, statistical, branching ratio [J/psi(3100)], eta/c(2980): hadronic decay, experimental results
Abstract: Using a data sample corresponding to an integrated luminosity of $2.0\,fb^{-1}$, collected by the LHCb experiment, the production of the $\eta_c(1S)$ state in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13 \text{ TeV}$ is studied in the rapidity range ${2.0 < y < 4.5}$ and in the transverse momentum range ${6.5 < p_{T} < 14.0\text{ GeV}}$. The cross-section for prompt production of $\eta_c(1S)$ mesons relative to that of the $J/\psi$ meson is measured using the ${p\bar{p}}$ decay mode and is found to be ${\sigma_{\eta_c(1S)}/\sigma_{J/\psi} = 1.69 \pm 0.15 \pm 0.10 \pm 0.18}$. The quoted uncertainties are, in order, statistical, systematic and due to uncertainties on the branching fractions of the ${J/\psi\to p \bar{p}}$ and ${\eta_c\to p \bar{p}}$ decays. The prompt $\eta_c(1S)$ production cross-section is determined to be ${\sigma_{\eta_c(1S)} = 1.26 \pm 0.11\pm 0.08 \pm 0.14 \,\mu b}$, where the last uncertainty includes that on the ${J/\psi}$ meson cross-section. The ratio of the branching fractions of $b$-hadron decays to the $\eta_c(1S)$ and ${J/\psi}$ states is measured to be ${\mathcal{B}_{b\to\eta_c X}/\mathcal{B}_{b\to J/\psi X} = 0.48 \pm 0.03 \pm 0.03 \pm 0.05}$, where the last uncertainty is due to those on the branching fractions of the ${J/\psi \to p \bar{p}}$ and ${\eta_c\to p \bar{p}}$ decays. The difference between the ${J/\psi}$ and $\eta_c(1S)$ masses is also determined to be ${113.0 \pm 0.7 \pm 0.1\text{ MeV}}$, which is the most precise single measurement of this quantity to date., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-024.html (LHCb public pages)
Published: 2019
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136. Observation of the semileptonic decay $B^{+}\to p\overline{p}\mu^{+}\nu_{\mu}

Author: Jean François Marchand, Stephane T'Jampens, Oleg Stenyakin, Ming Zeng, Tommaso Pajero, R. Cenci, Adam Szabelski, Alessia Satta, Mark Hatch, D. Martinez Santos, Giacomo Graziani, Vlad-Mihai Placinta, Jennifer Brigitta Zonneveld, C. A. Aidala, Lev Shekhtman, E. Spadaro Norella, V. Volkov, Yawen Wang, Yanxi Zhang, Alexander Vagner, Anna Danilina, Cedric Meaux, Sebastian Neubert, V. Bocci, Simon Stemmle, S. Playfer, James Mwangi Kariuki, Olivier Göran Girard, Samuel Coquereau, A. Pellegrino, S. Gallorini, Guy Wilkinson, Ph. Ghez, Luciano Pappalardo, Roberta Cardinale, Ying Lu, F. Blanc, Niels Tuning, Harry Cliff, David Ward, V. Belavin, Federico Cindolo, Roger Forty, Alexander Battig, Gabriele Simi, Roman Greim, F. Redi, Christoph Langenbruch, G. Bencivenni, Martha Hilton, F. Archilli, Cynthia Nunez, C. Sanchez Mayordomo, Minh Tâm Tran, Federico Alessio, C. M. Costa Sobral, Richard Jacobsson, Murdo Traill, Johannes Heuel, Sebastian Schulte, Marco Petruzzo, Andrea Contu, B. Malecki, Zhipeng Tang, Sarah Beranek, Yuezhe Yao, Hangyi Wu, William Barter, Martina Pili, Jaap Velthuis, W. Wislicki, Marco Clemencic, Alexey Vorobyev, Gloria Corti, P. Owen, C. Vázquez Sierra, Mariusz Witek, Chenxi Gu, Qiang Xu, Domenico Galli, Michele Atzeni, Davide Fazzini, L. Del Buono, J. Buytaert, Darya Savrina, I. A. Monroy, Samuel Belin, Arseniy Vitkovskiy, Giulio Dujany, Renato Quagliani, Phoebe Meredith Hamilton, S. Ricciardi, G. Liu, Davide Pinci, Eleonora Luppi, Moran Wang, Naomi Cooke, Matthew Kenzie, Marian Stahl, Yang Gao, Mark Wilkinson, Roland Waldi, Evgeny Gushchin, A. Romero Vidal, Constantin Weisser, J. Serrano, Wenhua Hu, Malgorzata Pikies, R. Silva Coutinho, Titus Mombächer, Thomas Grammatico, Naomi Veronika Raab, Jana Crkovská, S. Blusk, David Gascon, Nikolay Bondar, Saverio Mariani, Vukan Jevtic, O. V. Mineev, Ph. Charpentier, J. Lomba Castro, Elie Aslanides, Z. Mathe, Niko Neufeld, l. Soares Lavra, Thomas Harrison, Alessandro Camboni, K. M. Fischer, Edward James Millard, Marco Gersabeck, M. van Veghel, Kuzma Ivshin, Philipp Ibis, Dmitrii Pereima, Fedor Ratnikov, Roberto Calabrese, M. Fuehring, Pavol Stefko, G. Manca, J. M. Otalora Goicochea, Tommaso Colombo, J. J. Saborido Silva, P. Campana, David Loh, Florin Maciuc, J. D. Osborn, R. Oldeman, Florian Reiss, Anna Lupato, Daniel Johnson, Timofei Maltsev, Timothy Gershon, Yu. Guz, H. Li, Andrey Golutvin, Thomas Blake, Matthew Kelsey, Anatoliy Dovbnya, Luca Tomassetti, H. Schindler, Marek Idzik, Thomas Hadavizadeh, Viacheslav Matiunin, J. Maratas, Ifan Williams, W. Qian, I. V. Gorelov, Giovanni Bassi, Da Yu Tou, Scott Ely, Maria Elena Stramaglia, Albert Bursche, Sneha Malde, Naylya Sagidova, Jing Wang, P. Durante, Fedor Baryshnikov, Yonghui Zhou, Marco Cattaneo, J. M. De Miranda, Gregory Ciezarek, Piera Muzzetto, Wolfgang Funk, E. Ben-Haim, Maxime Schubiger, George Holger Lovell, Zan Ren, Katharina Müller, Luca Pescatore, Ryan Newcombe, Evgenii Shmanin, John Back, Christoph Hasse, Jordy Sebastiaan Butter, Fabio Ferrari, Guido Andreassi, Agnieszka Oblakowska-Mucha, J. A. Rodriguez Lopez, Feng Jiang, Matthieu Marinangeli, Salvatore Aiola, Philip Ilten, Murilo Rangel, Adam Davis, Stephan Escher, P. Alvarez Cartelle, Matthew George Chapman, B. R. Gruberg Cazon, R. Manera Escalero, N. G. Polukhina, Wander Baldini, Victor Renaudin, A. Puig Navarro, S. J. Chen, Jacopo Pinzino, Wen Chao Zhang, Manuel Schiller, P. Vazquez Regueiro, Christopher Burr, Lauren Douglas, D. Vom Bruch, Marcin Kucharczyk, Emilie Maurice, Maximilien Chefdeville, S. Tolk, Alex Pearce, Sergii Kandybei, Antje Mödden, C. Gaspar, Cheryl Pappenheimer, Y. H. Zheng, Paul Seyfert, C. Sanchez Gras, Martino Borsato, B. Pietrzyk, Igor Kostiuk, Loris Martinazzoli, D. Zhang, E. van Herwijnen, Ao Xu, Mara Senghi Soares, J. García Pardiñas, Patrick Koppenburg, Martina Ferrillo, Sergey Didenko, Elisabeth Maria Niel, Jeremy Dalseno, Simone Bifani, M. De Cian, Stefano Perazzini, Ignacio Bediaga, Desmond Mzamo Shangase, P. Griffith, Paolo Ciambrone, Tatsuya Nakada, M. Ferro-Luzzi, A. Brossa Gonzalo, P. Gironella Gironell, Pietro Albicocco, Carmen Giugliano, Silvia Borghi, Pavel Krokovny, A. Trisovic, Qundong Han, Eduardo Rodrigues, Lennaert Bel, Emma Buchanan, Daniele Marangotto, G. Alkhazov, Michael McCann, Sandra Amato, Lei Zhang, Marcel Merk, Hongjie Mu, Ryan Calladine, Plamen Hristov Hopchev, Floris Keizer, Maciej Witold Majewski, E. Grauges, L. R. Madhan Mohan, K. Carvalho Akiba, T. Skwarnicki, S. Benson, Alessio Piucci, Yasmine Amhis, Gabriela Johanna Pomery, Krzysztof Swientek, Franco Bedeschi, Giovanni Valenti, Zhiyu Xiang, Mikhail Mikhasenko, Andrea Bizzeti, M. Morandin, Tatiana Ovsiannikova, Arthur Marius Hennequin, Heather Mckenzie Wark, S. Esen, Wojciech Kucewicz, D. Decamp, A. Vollhardt, Anna Ossowska, Nathan Jurik, B. D. C. Westhenry, Wojciech Krupa, Kevin Heijhoff, Lorenzo Capriotti, I. Longstaff, F. Martinez Vidal, Tjeerd Ketel, John Gordon Smeaton, Alexander Inyakin, Lluis Garrido, Jonas Rademacker, Jozef Tomasz Borsuk, Stephen M. Stahl, Nigel Watson, Jakub Moron, Kodassery Prasanth, Oleg Maev, Alexey Boldyrev, Franz Muheim, D. Melnychuk, X. J. Zhou, L. Calero Diaz, C. Satriano, S. A. Wotton, Yuyue Gan, Eddy Jans, Mikhail Hushchyn, Xuhao Yuan, Jiayin Sun, Sophie Katharina Kretzschmar, Maciej Wojciech Dudek, Alexandru Grecu, S. Monteil, Matthew Scott Rudolph, J. He, Nikita Kazeev, Svende Braun, Martin Stefan Bieker, Thomas Ackernley, M. Shapkin, Flavio Pisani, Victor Egorychev, M. Pepe Altarelli, Vincenzo Vagnoni, Daniel Charles Craik, Marco Santimaria, U. Marconi, G. Martellotti, Gerd Joachim Kunde, J. Jalocha, E. Cogneras, P. Fernandez Declara, Gaia Lanfranchi, E. Dall’Occo, John Jake Lane, Nis Meinert, Alison Tully, A. Comerma-Montells, Sergey Strokov, David Websdale, Aravindhan Venkateswaran, Jia-Jia Qin, Sara Elizabeth Mitchell, Andrew Crocombe, Veronika Chobanova, A. Jawahery, M. Bartolini, Valery Pugatch, Erica Polycarpo, Miroslav Saur, Emilie Bertholet, Konstantin Gizdov, Wiktor Byczynski, M. Martinelli, Xiao-Rui Lyu, P. Billoir, Vladimir Macko, Sofia Kotriakhova, A. Lusiani, Andrea Valassi, Tara Nanut, Adam Dendek, B. Garcia Plana, Marianna Fontana, Yuehong Xie, Anastasia Smetkina, A. Gomes, Federico Betti, S.-G. Chitic, Adam Benjamin Morris, Stefania Vecchi, Hanna Malygina, J. Arnau Romeu, Frederic Teubert, Vladimir Romanovskiy, A. G. Morris, Silvia Gambetta, Georgios Chatzikonstantinidis, J. Z. Fan, Mark Whitehead, Lucas Mcconnell, Semen Eidelman, Samuel Maddrell-Mander, C. Chen, M. Rama, Michele Veronesi, S. Meloni, Oleksander Kot, S. Zucchelli, X. Han, Andreas Weiden, R. Graciani Diaz, Razvan Daniel Moise, M. Plo Casasus, K. Petridis, T. Ruf, Massimiliano Fiorini, C. Santamarina Rios, Louis Henry, Hilbrand Steffen Kuindersma, C. J. G. Onderwater, Alexander Inglessi, Elena Graverini, M. van Beuzekom, D. A. Milanes, M. Franco Sevilla, Alexey A. Petrov, Joseph David Shupperd, M. Dorigo, Vladislav Balagura, J. M. Yu, Tomasz Fiutowski, P. Collins, S. C. Haines, G. Tellarini, Maulik R. Patel, M. Mulder, Mikhail Zavertyaev, P. Di Nezza, Markus Frank, L. A. Granado Cardoso, Moritz Demmer, Kristian Alexander Zarebski, H. W. Van Hecke, Michael Alexander, D. Lucchesi, Thomas Henry Hancock, Benjamin Couturier, Mikkel Bjørn, Maria Flavia Cicala, Marcel Materok, A. Schopper, Zehua Xu, B. Souza De Paula, Tengiz Kvaratskheliya, Antonios Papanestis, Petr Andreevich Gorbounov, C. Parkes, Cristina Lazzeroni, F. A. Garcia Rosales, Flavio Fontanelli, A. Casais Vidal, Karlis Dreimanis, T. Lesiak, Gediminas Sarpis, Tobias Tekampe, Guido Haefeli, S. Klaver, Dawid Gerstel, Y. Sun, Slavomira Stefkova, Gerwin Meier, Serena Maccolini, J. A. B. Coelho, Xavier Vilasis-Cardona, Margarita Stepanova, M. Ramos Pernas, O. Schneider, M. Gandelman, Thierry Gys, S. Ferreres Sole, Marco Adinolfi, Derek L. G. Hill, Eluned Smith, M. N. Minard, J. J. Walsh, Davide Lancierini, Christoph Frei, Rainer Schwemmer, Christopher Jones, Daniel Patrick O'Hanlon, Alex Seuthe, T. Kirn, V.G. Shevchenko, Alessandro Petrolini, M. Veltri, A. A. Alves, Matthias Karacson, Hannah Louise Pullen, H.-P. Dembinski, Jonathan Plews, B. Quintana, Surapat Ek-In, Nikita Beliy, Violaine Bellee, William Dean, Alessandra Gioventù, F. J. P. Soler, Joel Closier, M. Rotondo, George Lafferty, Sophie Richards, Baasansuren Batsukh, A. Fernandez Prieto, Emmy Gabriel, Benedetto Gianluca Siddi, Stephen Ogilvy, Federico Stagni, Jascha Peter Grabowski, Alexandru Ene, Florian Lemaitre, Konrad Klimaszewski, Felix Johannes Kress, Shantam Taneja, Y. Li, Yiheng Luo, Malte Hecker, Deepanwita Dutta, Zhenwei Yang, Mark Richard James Williams, P. Spradlin, Anatoly Konoplyannikov, M. Vernet, M. Xu, Igor Skiba, Andrea Mauri, Miroslaw Firlej, O. Yushchenko, B. Spaan, Claire Prouve, Kevin Heinicke, Neville Harnew, Maciej Pawel Szymanski, Lauren Emma Yeomans, Hongxi Xing, Paolo Carniti, Renata Kopecna, Almagul Kondybayeva, D. Hynds, Stefano Petrucci, Jose Lopes, R. Hidalgo Charman, Anastasiia Kharisova, John Matthew Durham, Karol Hennessy, R. Dzhelyadin, L. G. Scantlebury Smead, A. Hicheur, Marina Artuso, Kenenbek Arzymatov, Andrei Tsaregorodtsev, Nicola Skidmore, Meril Reboud, Brij Kishor Jashal, Federico Lazzari, R. Santacesaria, S. Cadeddu, Li Xu, C. Matteuzzi, M. De Serio, Roel Aaij, Vadym Denysenko, Francesca Dordei, Alessandro Cardini, C. L. Da Silva, Guillaume Pietrzyk, K. De Bruyn, Vasyl Dobishuk, Themistocles Bowcock, Kara Renee Mattioli, M. Cruz Torres, Alexander Berezhnoy, E. G. Thomas, Stanislav Poslavskii, Matteo Palutan, Marie Helene Schune, D. Tonelli, James Vincent Mead, Andrea Mogini, Andrea Merli, Jacopo Cerasoli, Jinlin Fu, A. Palano, Tomasz Szumlak, A. Carbone, Andrii Usachov, Michael Schmelling, David Gerick, Dmitrii Maisuzenko, Ia. Bezshyiko, B. Khanji, Hans Dijkstra, Nikolay Nikitin, Giampiero Mancinelli, J. Ruiz Vidal, Vladimir Gligorov, Dominik Stefan Mitzel, Gianfranco Morello, Preema Rennee Pais, Carina Trippl, Cameron Thomas Dean, Maxim Borisyak, L. Ferreira Lopes, Mark Slater, Varvara Batozskaya, Antonio Falabella, Lucia Grillo, Kurt Rinnert, Lukas Gruber, Stephanie Hansmann-Menzemer, Pawel Kopciewicz, R. Le Gac, A. McNab, Claudio Gotti, Milosz Zdybal, B. Schmidt, A. Lai, Kenneth Wyllie, Roland Bernet, C. Marin Benito, Simon Akar, Rafal Dominik Krawczyk, Marc-Olivier Bettler, Jiangqiao Hu, Xixin Liang, Thibaud Humair, David Hutchcroft, R. I. Rabadan Trejo, Dominik Müller, A. Bay, G. Tuci, Robert Ekelhof, Victor Coco, S. Stracka, B. T. Meadows, G. Raven, V. Franco Lima, Alexander Bondar, M. Kreps, M. D. Sokoloff, Zhuoming Li, Matthew James Tilley, Sune Jakobsen, W. Huang, Nathanael Farley, V. Vorobyev, H. Cai, M. Mukherjee, Stefan Roiser, D. Campora Perez, A. Massafferri, V. Kudryavtsev, Donal Murray, Xiao-yan Li, M. Romero Lamas, Olivier Deschamps, Niklas Stefan Nolte, Alexander Baranov, M. Calvo Gomez, Johannes Albrecht, Malcolm John, Sebastien Ponce, Kayleigh Anne Thomson, Daniele Manuzzi, Paras Naik, Lars Eklund, Julien Cogan, Alexey Zhelezov, Vanessa Müller, Ziad Ajaltouni, Michele Piero Blago, Andreas Güth, Margarete Schellenberg, Peter Svihra, T. D. Nguyen, R. Matev, B. Rachwal, X. Cid Vidal, R. McNulty, Michal Dziewiecki, Olli Lupton, Simon Nieswand, Annarita Buonaura, Valery Zhukov, S. Simone, Mihai Straticiuc, Christopher Betancourt, Ulrik Egede, J. A. de Vries, K. Belous, Jolanta Brodzicka, Biljana Mitreska, Laurent Dufour, Nicola Neri, R. Mountain, A. Alfonso Albero, G. Wormser, Timon Schmelzer, G. Punzi, Gennady Panshin, M. Poli Lener, Fabrice Desse, Nikolai Voropaev, Matthieu Kecke, Olivier Leroy, Wouter Hulsbergen, O. De Aguiar Francisco, B. Sanmartin Sedes, Adalberto Sciubba, Barbara Sciascia, Jordan Daniel Roth, Hossein Afsharnia, M. R. J. Williams, Abhijit Mathad, Sebastian Bachmann, Dmitry Popov, G. Passaleva, V. Obraztsov, Ivan Belyaev, M. Lucio Martinez, Stephan Eisenhardt, A. Artamonov, S. De Capua, R. Lindner, Ivan Polyakov, Daniel Berninghoff, Giovanni Carboni, D. Wiedner, Iwan Thomas Smith, Valerie Gibson, A. Dzyuba, Guillermo Loustau, C. Nguyen-Mau, A. Heister, Luca Minzoni, Dylan Jaide White, M. Tobin, A. Di Canto, J. Garra Tico, Aleksandra Snoch, F. Ferreira Rodrigues, Carla Göbel, Beat Jost, Holger Stevens, Hang Yin, Harris Conan Bernstein, C. Bozzi, O. Boente Garcia, Agnieszka Dziurda, Alexander D. Popov, Tara Shears, L. Silva de Oliveira, Anton Poluektov, Lorenzo Sestini, Marta Calvi, Anita Nandi, E. Govorkova, Harald Viemann, Alexander Leflat, Artem Maevskiy, C. B. Van Hulse, Blaise Delaney, Laura Promberger, Alessio Sarti, V. Chekalina, Patrick Robbe, P. d'Argent, J. V. Viana Barbosa, M. J. Bradley, Artur Ukleja, Phillip John Marshall, Wojciech Krzemien, Evelina Gersabeck, Dana Bobulska, Benjamin Audurier, Denis Derkach, H. F. Schreiner, M. Vieites Diaz, Lucio Anderlini, Alessandro Pastore, Zhenzi Wang, Veronica Soelund Kirsebom, Peter Clarke, Matthew Needham, Giovanni Cavallero, A. Gallas Torreira, Xiaofeng Zhu, C. Remon Alepuz, R. Nandakumar, Ross John Hunter, Lucian Cojocariu, Mark Smith, Michael Becker, L. Sun, Andrey Ustyuzhanin, Sajan Easo, Bernardo Adeva, Dmitry Golubkov, A. Bertolin, Aleksei Chernov, O. Steinkamp, S. Filippov, Matthew Charles, Mauricio Féo, E. Tournefier, Alexander Malinin, J. Marks, Irina Nasteva, U. Uwer, Patrick Mackowiak, K. E. Kim, William Parker, L. De Paula, Pietro Marino, Jihyun Bhom, F. Polci, Mariia Poliakova, Vitalii Lisovskyi, M. Winn, Dong Xiao, Roger Barlow, Simon Baker, Conor Fitzpatrick, Antonino Sergi, T. Boettcher, A. Brea Rodriguez, P. De Simone, R. Lefèvre, Christophe Haen, Robert Currie, Carmelo D'Ambrosio, A. B. Rodrigues, Jakub Ryzka, Robert Hart, Daniel Lacarrere, L. M. Garcia Martin, R. A. Fini, C. Abellán Beteta, Timothy Evans, Paolo Gandini, Biplab Dey, Leonid Kravchuk, Biagio Saitta, David Anthony Friday, S. Schael, Stefano Cali, Xia-Ji Liu, Frederic Machefert, Sheldon Stone, Fergus Wilson, Alexsei Chubykin, George Coombs, Emanuele Santovetti, Davide Brundu, M. Brodski, Daniel Vieira, Colm Harold Murphy, Arnaud Robert, Thomas Latham, C. Patrignani, Markus Roehrken, V. Tisserand, M. Andreotti, S. Farry, Nicola Serra, Gianluigi Casse, Angelo Loi, Andrew Beiter, A. C. dos Reis, Srishti Bhasin, Liupan An, R. Vazquez Gomez, Alexander Semennikov, Sara Sellam, M. J. Morello, Sergey Barsuk, François Fleuret, B. Leverington, M. Chrzaszcz, L. Giubega, A. Oyanguren, Thomas N. Williams, Francesco Dettori, Pascal Perret, Serhii Koliiev, Shuang-Nan Zhang, Alexandra Paige Rollings, John Leslie Cobbledick, M. Pappagallo, Mika Vesterinen, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), LHCb, Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Annecy de Physique des Particules (LAPP), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Semileptonic decay, Nuclear and High Energy Physics, Particle physics, p p: scattering, 13000 GeV-cms, B+: branching ratio: measured, rare decay [B+], S041.631, +J%2Fpsi%283100%29+K%2B%22">B+ --> J/psi(3100) K+, 01 natural sciences, B physics, High Energy Physics - Experiment, Flavor physics, B+: decay modes, Hadron-Hadron scattering (experiments), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], scattering [p p], Invariant mass, mass spectrum: (p anti-p), ddc:530, 010306 general physics, Physics, 8000 GeV-cms, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, hep-ex, +p+anti-p+muon%2B+neutrino%2Fmu%22">B+ --> p anti-p muon+ neutrino/mu, LHC-B, (p anti-p) [mass spectrum], mass dependence, CERN LHC Coll, B+: rare decay, 7000 GeV-cms, decay modes [B+], branching ratio: measured [B+], semileptonic decay [B+], colliding beams [p p], B+: semileptonic decay, p p: colliding beams, statistical, S041.3, Particle Physics - Experiment, experimental results
Abstract: Journal of high energy physics 03(3), 146 (1-21) (2020). doi:10.1007/JHEP03(2020)146, The Cabibbo-suppressed semileptonic decay $ {B}^{+}\to p\overline{p}{\mu}^{+}{\nu}_{\mu } $ is observed for the first time using a sample of $pp$ collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb$^{−1}$ at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the $ p\overline{p} $ invariant mass using the decay mode B$^{+}$→ J/ψK$^{+}$ for normalisation. The total branching fraction is measured to be $ \mathrm{\mathcal{B}}\left({B}^{+}\to p\overline{p}{\mu}^{+}{\nu}_{\mu}\right)=\left({5.27}_{-0.24}^{+0.23}\pm 0.21\pm 0.15\right)\times {10}^{-6}$, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel., Published by SISSA, [Trieste]
Published: 2019
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137. Pressure-tuned colossal magnetoresistance effect in n-type CdCr2Se4

Author: Ying Zhou, Chao An, Zhaorong Yang, Yonghui Zhou, Bowen Zhang, Chuanchuan Gu, and Xuliang Chen
Subjects: 010302 applied physics, Colossal magnetoresistance, Materials science, Physics and Astronomy (miscellaneous), Magnetoresistance, Condensed matter physics, 02 engineering and technology, Conductivity, 021001 nanoscience & nanotechnology, 01 natural sciences, Magnetization, symbols.namesake, Ferromagnetism, 0103 physical sciences, symbols, Curie temperature, 0210 nano-technology, Ground state, Raman spectroscopy
Abstract: The p-type CdCr2Se4 exhibits semiconducting conductivity while n-type CdCr2Se4 displays a semiconductor–metal transition and a concomitant colossal magnetoresistance near the Curie temperature. Here, we investigate the pressure effect on the conductivity for both types of compounds. We show that the resistance of p-type sample decreases continuously upon compression, while the semiconducting behavior dominates up to 27.9 GPa. For the n-type sample, the semiconductor-metal transition is suppressed gradually with the increase in pressure; meanwhile, the magnetoresistance becomes less and less pronounced and is negligible at 9.2 GPa. Combined with in situ high-pressure magnetization, x-ray diffraction, and Raman spectra investigations, a ferromagnetic ground state is deduced in the pressurized n-type CdCr2Se4 before the structural transition, which is in stark contrast to the pressure effect on n-type HgCr2Se4.
Published: 2021
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138. Pressure-induced anomalous insulating behavior in frustrated iridate La3Ir3O11 *

Author: Xuliang Chen, Zhaorong Yang, Ying Zhou, Chao An, Zhaoming Tian, Yifang Yuan, Yonghui Zhou, and Chunhua Chen
Subjects: Physics, General Physics and Astronomy
Abstract: The geometrically frustrated iridate La3Ir3O11 with strong spin–orbit coupling and fractional valence was recently predicted to be a quantum spin liquid candidate at ambient conditions. Here, we systematically investigate the evolution of structural and electronic properties of La3Ir3O11 under high pressure. Electrical transport measurements reveal an abnormal insulating behavior rather than metallization above a critical pressure P c ∼ 38.7 GPa. Synchrotron x-ray diffraction (XRD) experiments indicate the stability of the pristine cubic KSbO3-type structure up to 73.1 GPa. Nevertheless, when the pressure gradually increases across P c, the bulk modulus gets enhanced and the pressure dependence of bond length d Ir – Ir undergoes a slope change. Consistent with the XRD data, detailed analyses of Raman spectra reveal an abnormal redshift of Raman mode and a change of Raman intensity around P c. Our results demonstrate that the pressure-induced insulating behavior in La3Ir3O11 can be assigned to the structural modification, such as the distortion of IrO6 octahedra. These findings will shed light on the emergent abnormal insulating behavior in other 5d iridates reported recently.
Published: 2021
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139. Effect of hybrid texture combining micro-pits and micro-grooves on cutting performance of WC/Co-based tools

Author: Jialin Sun, Yonghui Zhou, Jianxin Deng, and Jun Zhao
Subjects: 0209 industrial biotechnology, Materials science, Mechanical Engineering, Metallurgy, Rake, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, 02 engineering and technology, 021001 nanoscience & nanotechnology, Industrial and Manufacturing Engineering, Computer Science Applications, Carbide, chemistry.chemical_compound, 020901 industrial engineering & automation, chemistry, Control and Systems Engineering, Numerical control, Surface roughness, Texture (crystalline), Tool wear, Lubricant, Composite material, 0210 nano-technology, Molybdenum disulfide, Software, ComputingMethodologies_COMPUTERGRAPHICS
Abstract: Friction at the tool-chip interface may be reduced by introducing a lubricant into the tool-chip interface; the effectiveness of which can be enhanced by surface texturing the tool. Micro-grooves, micro-pits, and hybrid texture combining micro-pits and micro-grooves were fabricated employing laser on the rake face of carbide tools, with a view to facilitating lubricant penetrate and retention; then, solid lubricant (molybdenum disulfide) was applied to fill micro-textures to form micro-pools. In the present study, the effect of hybrid texture on the cutting performance was experimentally investigated using the hybrid-textured tools, single-textured tools, and conventional tools in dry turning pure iron tests on the numerical control lathe. The behavior of these tools was quantified in terms of the cutting forces, cutting temperature, friction coefficient at the tool-chip interface, shear angle, surface roughness of machined workpiece, chip morphology, and tool wear on the rake face. Results confirm enhanced cutting performance of hybrid-textured tools by collaborative complementation as micro-reservoir for constant lubricant replenishment of micro-grooves and micro-pits. It is suggested that the hybrid-textured self-lubricating tool is applicable to a stable dry cutting of pure iron.
Published: 2016
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140. Non-hydrostatic pressure-dependent structural and transport properties of BiCuSeO and BiCuSO single crystals

Author: Jian Zhou, Yang-Yang Lv, Yan-Feng Chen, Yonghui Zhou, Lu Xu, Shan-Tao Zhang, Zhaorong Yang, Ye-Cheng Luo, Shu-Hua Yao, Lin Cao, Yu-Lei Chen, and Yan-Yan Zhang
Subjects: Work (thermodynamics), Materials science, Crystal structure, Condensed Matter Physics, law.invention, symbols.namesake, Tetragonal crystal system, Lattice constant, Electrical resistance and conductance, Chemical physics, law, symbols, General Materials Science, Hydrostatic equilibrium, Raman spectroscopy, Material properties
Abstract: High-pressure experiments usually expect a hydrostatic condition, in which the physical properties of materials can be easily understood by theoretical simulations. Unfortunately, non-hydrostatic effect is inevitable in experiments due to the solidification of the pressure transmitting media under high pressure. Resultantly, non-hydrostaticity affects the accuracy of the experimental data and sometimes even leads to false phenomena. Since the non-hydrostatic effect is extrinsic, it is quite hard to analyze quantitatively. Here, we have conducted high pressure experiments on the layered BiCuXO (X = S and Se) single crystals and quantitatively analyzed their pronounced non-hydrostatic effect by high throughput first-principles calculations and experimental Raman spectra. Our experiments find that the BiCuXO single crystals sustain the tetragonal structure up to 55 GPa (maximum pressure in our experiment). However, their pressure-dependent Raman shift and electric resistance show anomalous behaviors. Through optimization of thousands of crystal structures in the high throughput first-principles calculations, we have obtained the evolution of the lattice constants under external pressures, which clearly substantiates the non-hydrostatical pressure exerted in BiCuXO crystals. Our work indicates that the high throughput first-principles calculations could be a handy method to investigate the non-hydrostatic effect on the structural and electronic properties of materials in high pressure experiments.
Published: 2020
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141. Overview of 3D additive manufacturing (AM) and corresponding AM composites

Author: Yuxuan Wang, Jorge Corker, Yonghui Zhou, Mizi Fan, and Lanying Lin
Subjects: Materials science, Mechanics of Materials, Ceramics and Composites, 02 engineering and technology, Manufacturing methods, Composite material, 010402 general chemistry, 021001 nanoscience & nanotechnology, 0210 nano-technology, 01 natural sciences, 0104 chemical sciences
Abstract: Additive manufacturing (AM) technologies have experienced a substantial growth in recent decades, AM technologies are able to fabricate and build complicated customized geometry composites without extra tools, and execute multi-materials manufacturing that conventional manufacturing methods cannot offer. This review investigated current AM technologies, including liquid, solid, powder and hybrid of liquid-powder based AM printings, and corresponding AM composites, including particle, nano-fillers and fibre reinforced AM composites. Full biocomposites of natural fibre-biopolymer for AM process have also been evaluated. Upon the understanding of all AM technologies, e.g. printing mechanisms, strength and weakness, and AM composite materials formulations, applicability and performance, the limitations and massive potentials of AM technologies and corresponding composites were discussed for further research, innovation and manufacturing.
Published: 2020
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142. Emerging Superconductivity and the Origin of Its Enhancement in Pressurized Topological Nodal‐Line Semimetal SrAs 3

Author: Bowen Zhang, Yifang Yuan, Ying Zhou, Xiangde Zhu, Zhaorong Yang, Chunhua Chen, Shuyang Wang, Mengyao Qi, Ranran Zhang, Chao An, Yonghui Zhou, Xuliang Chen, and Mingliang Tian
Subjects: Superconductivity, Phase transition, Materials science, Condensed matter physics, Synchrotron X-Ray Diffraction, NODAL, Semimetal, Electronic, Optical and Magnetic Materials, Line (formation)
Published: 2020
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143. Possible Tricritical Behavior and Anomalous Lattice Softening in van der Waals Itinerant Ferromagnet Fe3GeTe2 under High Pressure

Author: Xuliang Chen, Jie-Min Xu, Yonghui Zhou, Zhe Qu, Wen-Jun Wang, Shuyang Wang, and Zhaorong Yang
Subjects: symbols.namesake, Materials science, Ferromagnetism, Condensed matter physics, High pressure, Lattice (order), symbols, General Physics and Astronomy, van der Waals force, Softening
Abstract: We present a high-pressure study of van der Waals ferromagnetic metal Fe3GeTe2 through electrical transport and Raman scattering measurements in diamond anvil cells at pressures up to 22.4GPa. Upon compression, the ferromagnetic transition temperature T c manifested by a kink in resistance curve decreases monotonically and becomes undiscernable around P c = 10GPa, indicative of suppression of the itinerant ferromagnetism. Meanwhile, by fitting the low temperature resistance to the Fermi liquid behavior of R = R 0 + AT 2, we found that R 0 shows a cusp-like anomaly and the coefficient A diverges around P c. These transport anomalies imply a tricritical point as commonly observed in itinerant ferromagnets under pressure. Unexpectedly, the Raman-active E 2g and A 1g modes soften remarkably after an initial weak hardening and the peak widths of both modes broaden evidently on approaching P c, followed by complete disappearance of both modes above this critical pressure. A possible underlying mechanism for such anomalous lattice softening near P c is discussed.
Published: 2020
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144. Direct Z-scheme Ag3PO4/Bi4Ti3O12 heterojunction with enhanced photocatalytic performance for sulfamethoxazole degradation

Author: Junfeng Niu, Jingjing Xu, Chenlu Liu, Yonghui Zhou, and Mindong Chen
Subjects: Chemical substance, Materials science, Composite number, Filtration and Separation, Heterojunction, 02 engineering and technology, 021001 nanoscience & nanotechnology, Analytical Chemistry, law.invention, Search engine, 020401 chemical engineering, Magazine, Chemical engineering, law, Photocatalysis, Degradation (geology), 0204 chemical engineering, 0210 nano-technology, Science, technology and society
Abstract: This paper introduces a Z-scheme Ag3PO4/Bi4Ti3O12 heterojunction composite photocatalyst prepared by an in-situ growth method. The photocatalytic properties of the prepared samples under visible light irradiation were studied by degrading sulfamethoxazole (SMX). The results of photocatalytic experiments and cycle experiments showed that Ag3PO4/Bi4Ti3O12-20% composite exhibited much better photocatalytic activity and stability than pure Ag3PO4 and pure Bi4Ti3O12. The capture experiment results showed that h+ is the main active substance in the process of SMX degradation. In addition, we proposed a possible photocatalytic mechanism based on the results of experiment and characterization. The formation of a direct Z-Scheme photocatalytic system promoted the separation of carriers, thereby improving the stability and activity of the composite samples.
Published: 2020
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145. Classification of wood fibre geometry and its behaviour in wood poly(lactic acid) composites

Author: Yuxuan Wang, Omar Abo Madyan, Jorge Corker, Mizi Fan, Yonghui Zhou, and Guanben Du
Subjects: Materials science, Sieve analysis, Wood flour, Geometry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, 0104 chemical sciences, chemistry.chemical_compound, Flexural strength, Polylactic acid, chemistry, Mechanics of Materials, Compounding, Ultimate tensile strength, Ceramics and Composites, Composite material, 0210 nano-technology, Wood fibre
Abstract: This paper presents a comprehensive characterisation of wood flour geometry for polylactic acid (PLA) wood plastic composites (bioWPCs), and hence explores how the wood flour may influence the microstructure and performance of bioWPCs. The results show that current characterisation of wood flour from the literature can be misleading as they mostly rely on sieve analysis. Image analysis was used to critically study the fibres retained at various mesh sizes to investigate and examine the length and width distributions of the fibres prior to and after processing into bioWPCs. There were clear relationships between the reduction in both fibre size and aspect ratio and compounding processes depending on the original fibre geometry. It was also determined that by sieving out only the fibres retained at 500 µm much stronger bioWPCs can be produced than that using a single size fibre, achieving tensile and flexural stress of 15.3 and 13.2 MPa, respectively.
Published: 2020
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146. Pressure‐Induced Superconductivity in Topological Semimetal Candidate TaTe 4

Author: Chao An, Chunhua Chen, Yifang Yuan, Zhaorong Yang, Weike Wang, Bowen Zhang, Yonghui Zhou, Xuliang Chen, Chuanchuan Gu, Ranran Zhang, and Ying Zhou
Subjects: Superconductivity, Materials science, Condensed matter physics, Semimetal, Electronic, Optical and Magnetic Materials
Published: 2020
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147. Integrating Benzenesulfonic Acid Pretreatment and Bio-Based Lignin-Shielding Agent for Robust Enzymatic Conversion of Cellulose in Bamboo

Author: Liulian Huang, Yonghui Zhou, Jinghao Shi, Wenyuan Zhu, Jing Liu, Lihui Chen, Zhenggang Gong, and Xiaolin Luo
Subjects: 0106 biological sciences, Polymers and Plastics, Cellulase, lignin-shielding agent, 01 natural sciences, Article, lcsh:QD241-441, chemistry.chemical_compound, Benzenesulfonic acid, lcsh:Organic chemistry, lignin deposition, 010608 biotechnology, Enzymatic hydrolysis, Lignin, Hemicellulose, Cellulose, components removal, Soy protein, biology, 010405 organic chemistry, enzymatic hydrolysis, Substrate (chemistry), General Chemistry, 0104 chemical sciences, chemistry, biology.protein, benzenesulfonic acid pretreatment, Nuclear chemistry
Abstract: A hydrotrope-based pretreatment, benzenesulfonic acid (BA) pretreatment, was used to fractionate bamboo in this work. With optimized content (80 wt %) of BA in pretreatment liquor, about 90% of lignin and hemicellulose could be removed from bamboo under mild conditions (95 &deg, C, 30 min or 80 &deg, C, 60 min). The potential accessibility of BA pretreated substrate to cellulase was thus significantly improved and was also found to be much higher than those of acidic ethanol and dilute acid pretreatments. But the deposition of lignin on the surface of solid substrates, especially the BA pretreated substrate, was also observed, which showed a negative effect on the enzymatic hydrolysis efficiency. The addition of inexpensive soy protein, a bio-based lignin-shielding agent, could readily overcome this negative effect, leading the increase of enzymatic conversion of cellulose in BA pretreated substrate from 37% to 92% at a low cellulase loading of 4 FPU/g glucan. As compared to acidic ethanol and dilute acid pretreatments, the combination of BA pretreatment and soy protein could not only stably improve the efficiency of non-cellulose components removal, but also could significantly reduce the loading of cellulase.
Published: 2020
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148. Novel Kinetic Models of Xylan Dissolution and Degradation during Ethanol Based Auto-Catalyzed Organosolv Pretreatment of Bamboo

Author: Lihui Chen, Liulian Huang, Yonghui Zhou, Guangxu Yang, Jing Liu, Zhenggang Gong, and Xiaolin Luo
Subjects: 0106 biological sciences, Polymers and Plastics, susceptible dissolution degree (dX), 020209 energy, Organosolv, Xylan (coating), kinetic models, 02 engineering and technology, macromolecular substances, Xylose, Furfural, 01 natural sciences, Article, xylan, lcsh:QD241-441, chemistry.chemical_compound, Acetic acid, lcsh:Organic chemistry, ethanol based auto-catalyzed organosolv (EACO) pretreatment, 010608 biotechnology, 0202 electrical engineering, electronic engineering, information engineering, Lignin, Dissolution, bamboo, technology, industry, and agriculture, food and beverages, General Chemistry, Biorefinery, chemistry, Chemical engineering
Abstract: Due to the invalidity of traditional models, pretreatment conditions dependent parameter of susceptible dissolution degree of xylan (dX) was introduced into the kinetic models. After the introduction of dX, the dissolution of xylan, and the formation of xylo-oligosaccharides and xylose during ethanol based auto-catalyzed organosolv (EACO) pretreatments of bamboo were well predicted by the pseudo first-order kinetic models (R2 &gt, 97%). The parameter of dX was verified to be a variable dependent of EACO pretreatment conditions (such as solvent content in pretreatment liquor and pretreatment temperature). Based on the established kinetic models of xylan dissolution, the dissolution of glucan and the formation of degradation products (furfural and acetic acid) could also be empirically modeled (R2 &gt, 97%). In addition, the relationship between xylan and lignin removal can provide guidance for alleviating the depositions of lignin or pseudo-lignin. The parameter of dX derived novel kinetic models can not only be used to reveal the multi-step reaction mechanisms of xylan, but also control the final removal of main components in bamboo during EACO pretreatments, indicating scientific and practical significance for governing the biorefinery of woody biomass.
Published: 2018
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149. Pressure-induced topological insulator-to-metal transition and superconductivity in Sn-doped Bi1.1Sb0.9Te2S

Author: Zhaorong Yang, Fengqi Song, Ranran Zhang, Chao An, Bin Wu, Yonghui Zhou, Xuliang Chen, Ying Zhou, and Changyong Park
Subjects: Physics, Superconductivity, Diffraction, Valence (chemistry), Condensed matter physics, Band gap, Doping, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, symbols.namesake, Topological insulator, 0103 physical sciences, symbols, 010306 general physics, 0210 nano-technology, Raman scattering, Monoclinic crystal system
Abstract: Tetradymite-type topological insulator Sn-doped $\mathrm{B}{\mathrm{i}}_{1.1}\mathrm{S}{\mathrm{b}}_{0.9}\mathrm{T}{\mathrm{e}}_{2}\mathrm{S}$ (Sn-BSTS), with a surface state Dirac point energy well isolated from the bulk valence and conduction bands, is an ideal platform for studying the topological transport phenomena. Here, we present high-pressure transport studies on single-crystal Sn-BSTS, combined with Raman scattering and synchrotron x-ray diffraction measurements. Over the studied pressure range of 0.7--37.2 GPa, three critical pressure points can be observed: (i) At $\ensuremath{\sim}9$ GPa, a pressure-induced topological insulator-to-metal transition is revealed due to closure of the bulk band gap, which is accompanied by changes in slope of the Raman frequencies and a minimum in $c$/$a$ within the pristine rhombohedral structure ($R\text{\ensuremath{-}}3m$); (ii) at $\ensuremath{\sim}13$ GPa, superconductivity is observed to emerge, along with the $R\text{\ensuremath{-}}3m$ to a $C2$/$c$ (monoclinic) structural transition; (iii) at $\ensuremath{\sim}24$ GPa, the superconducting transition onset temperature ${T}_{\mathrm{C}}$ reaches a maximum of $\ensuremath{\sim}12\phantom{\rule{0.16em}{0ex}}\mathrm{K}$, accompanied by a second structural transition from the $C2$/$c$ to a body-centered cubic $Im\text{\ensuremath{-}}3m$ phase.
Published: 2018
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150. Pressure-induced multiband superconductivity in pyrite PtBi2 with perfect electron-hole compensation

Author: Tong Chen, Xuliang Chen, Ying Zhou, Chao An, Dexi Shao, Mingliang Tian, Jian Sun, Chuanchuan Gu, Zhaorong Yang, Yonghui Zhou, and Xiangde Zhu
Subjects: Superconductivity, Materials science, Physics and Astronomy (miscellaneous), Condensed matter physics, 02 engineering and technology, Electron hole, engineering.material, 021001 nanoscience & nanotechnology, 01 natural sciences, Compensation (engineering), 0103 physical sciences, engineering, General Materials Science, Pyrite, 010306 general physics, 0210 nano-technology
Published: 2018
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