Accès ouvert déclaré
2023
article
First measurement of prompt and non-prompt D⁎+ vector meson spin alignment in pp collisions at s=13 TeV
S. Acharya, D. Adamová, Alexander Adler, Gianluca Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja, A. Akindinov, Mohammad Al-Turany, Dmitry Aleksandrov, Bruno Alessandro, H. M. Alfanda, Jose Ruben Alfaro Molina, Bushra Ali, A. Alici, N. Alizadehvandchali, A. Alkin, J. Alme, Giacomo Alocco, Torsten Alt, I. Altsybeev, M. N. Anaam, Cristian Andrei, A. Andronic, Venelin Anguelov, F. Antinori, P. Antonioli, N. Apadula, L. Aphecetche, H. Appelshäuser, C. Arata, Silvia Arcelli, M. Aresti, R. Arnaldi, Jhoao Gabriel Martins Campos Almeida Arneiro, I. C. Arsene, Mesut Arslandok, Andre Augustinus, R. Averbeck, M. D. Azmi, A. Badalà, Joonsuk Bae, Y. W. Baek, Xiaozhi Bai, R. Bailhache, Y. Bailung, A. Balbino, A. Baldisseri, Bartosz Baliś, D. Banerjee, Zarina Banoo, R. Barbera, F. Barile, L. Barioglio, Maria Barlou, G. G. Barnaföldi, L. S. Barnby, V. Barret, Leonardo Barreto de Oliveira Campos, C. Bartels, Klaus Barth, E. Bartsch, N. Bastid, S. Basu, G. Batigne, Daniel Battistini, B. Batyunya, Dibakar Bauri, Jose Luis Bazo Alba, I. G. Bearden, C. Beattie, P. Becht, D. Behera, I. Belikov, Ailec Bell Hechavarria, F. Bellini, R. Bellwied, Svetlana Belokurova, V. Belyaev, Gyula Bencedi, S. Beolè, A. Bercuci, Y. Berdnikov, A. Berdnikova, L. Bergmann, Mihaela Gabriela Besoiu, L. Betev, Partha Pratim Bhaduri, A. Bhasin, M. A. Bhat, Buddhadeb Bhattacharjee, L. Bianchi, Nicola Bianchi, Jaroslav Bielcik, J. Bielčíková, Jacek Bogumil Biernat, Alexandre Patrick Bigot, A. Bilandzic, G. Bíró, S. Biswas, N. Bize, Justin Thomas Blair, D. Blau, Mihail Bogdan Blidaru, Nora Bluhme, Christoph Blume, Gianluigi Boca, F. Bock, Tea Bodova, Alexey Bogdanov, S. Boi, J. Bok, L. Boldizsár, M. Bombara, Peter Matthew Bond, Germano Bonomi, H. Borel, Alexander Borissov, A. G. Borquez Carcamo, Hannah Bossi, E. Botta, Youssef El Mard Bouziani, L. Bratrud, P. Braun‐Munzinger, Marco Bregant, Michal Broz, G. Bruno, M. D. Buckland, D. Budnikov, Henner Buesching, S. Bufalino, Ophélie Bugnon, Paul Alois Buhler, Edith Zinhle Buthelezi, Sebastian Adam Bysiak, Mengke Cai, Helen Louise Caines, Alberto Caliva, Ernesto Calvo Villar, Juan Manuel Mejia Camacho, P. Camerini, Fabio de Moraes Canedo, Mihai Carabaș, Aitor Amatriain Carballo, F. Carnesecchi, Leopoldo Abranches de Carvalho, J. Castillo Castellanos, F. Catalano, I. Chakaberia, Pritam Chakraborty, Sinjini Chandra, Sylvain Chapeland, M. Chartier, Sukalyan Chattopadhyay, Tonatiuh Garcia Chavez, T. Cheng, C. Cheshkov, B. Cheynis, Vasco Miguel Chibante Barroso, David Dobrigkeit Chinellato, E. S. Chizzali, J. Cho, Peter Chochula, P. Christakoglou, C. H. Christensen, P. Christiansen, T. Chujo, M. Ciacco, C. Cicalò, Federico Cindolo, Michael Rudolf Ciupek, Giulia Clai, Fabio Filippo Colamaria, J. S. Colburn, D. Colella, M. Colocci, Matteo Concas, Gustavo Conesa Balbastre, Z. Conesa del Valle, G. Contin, Jesus Guillermo Contreras Nuño, M. L. Coquet, Thomas Michael Cormier, P. Cortese, M. R. Cosentino, Filippo Costa, S. Costanza, Corentin Cot, J. Crkovská, Philippe Crochet, Reynier Cruz Torres, Eleazar Cuautle Flores, Pengyao Cui, A. Dainese, Meike Charlotte Danisch, Andrea Danu, Prottay Das, P. Das, S. Das, A. Dash, Sadhana Dash, A. De, G. de Cataldo, J. de Cuveland, D. De Gruttola, Chiara de Martin, S. De Pasquale, Suman Deb, R. J. Debski, Kamil Rafał Deja, R. Del Grande, L. Dello Stritto, W. Deng, P. Dhankher, D. Di Bari, A. Di Mauro, Raul Arteche Diaz, T. Dietel, Yanchun Ding, R. Divià, Dhruv Utpalkumar Dixit, Oeystein Djuvsland, U. Dmitrieva, Alexandru Florin Dobrin, Benjamin Dönigus, Jan Michal Dubinski, A. Dubla, S. Dudi, Pascal Dupieux, Martin Durkac, Natalia Dzalaiova, Tabea Maria Eder, Raymond James Ehlers, Viljar Nilsen Eikeland, Florian Eisenhut, Domenico Elia, B. Erazmus, F. Ercolessi, F. Erhardt, Magnus Rentsch Ersdal, B. Espagnon, G. Eulisse, D. Evans, S. Evdokimov, L. Fabbietti, M. Faggin, J. Faivre, F. Fan, W. Fan, A. Fantoni, M. Fasel, P. Fecchio, A. Feliciello, Г. Феофилов, A. Fernández Téllez, Lucas Ferrandi de Oliveira, M. B. Ferrer, A. Ferrero, C. Ferrero, A. Ferretti, Victor Jose Gaston Feuillard, V. Filova, F. M. Fionda, F. Flor, Amanda Nicole Flores, Siegfried Valentin Foertsch, I. Fokin, S. Fokin, E. Fragiacomo, Eszter Frajna, Ulrich Fuchs, Nicola Funicello, C. Furget, Artur Furs, T. Fusayasu, M. Gagliardi, Alberto Martin Gago Medina, Carlos Duarte Galvan, Dhevan Raja Gangadharan, Paraskevi Ganoti, Jose Maria Garabatos Cuadrado, Jesus Ricardo Alvarado Garcia, E. García-Solis, Kunal Garg, Corrado Gargiulo, P. Gasik, A. Gautam, M. Germain, A. Ghimouz, C. Ghosh, Marco Giacalone, P. Giubellino, P. Giubilato, Aude Marie Camille Glaenzer, P. Glässel, E. Glimos, Daniel Jia Qin Goh, V. González, M. Gorgoń, Varlen Grabski, L. K. Graczykowski, Ekaterina Grecka, A. Grelli, Costin Grigoras, V. Grigoriev, S. Grigoryan, F. Grosa, Jan Fiete Grosse-Oetringhaus, R. Grosso, David Grund, Gabriel Garcia Guardiano, R. Guernane, M. Guilbaud, K. Gulbrandsen, T. Gündem, T. Gunji, Wenda Guo, A. Gupta, R. Gupta, Sergio Paisano Guzman, Laszlo Gyulai, Michael Karim Habib, C. Hadjidakis, Fakhar Ul Haider, H. Hamagaki, Abdennacer Hamdi, M. Hamid, Younghoon Han, R. Hannigan, Md Rihan Haque, John William Harris, A. Harton, Hadi Hassan, D. Hatzifotiadou, Philip Hauer, L. B. Havener, Stefan Thomas Heckel, Ernst Hellbar, Haavard Helstrup, Marvin Hemmer, T. Herman, Gerardo Antonio Herrera Corral, Florian Herrmann, Sarah Nina Edwige Herrmann, K. F. Hetland, Benedict Heybeck, Hartmut Hillemanns, C. Hills, B. Hippolyte, Felix Willi Hoffmann, B. Hofman, B. Hohlweger, Geun Hee Hong, Maximilian Horst, Adrian Horzyk, Yongzhen Hou, Peter Zahariev Hristov, Charles Hughes, Patrick Huhn, Laura Maria Huhta, C. V. Hulse, T. J. Humanic, A. Hutson, Dirk Hutter, J. P. Iddon, Radiy Ilkaev, Hira Ilyas, Motoi Inaba, Gian Michele Innocenti, Mikhail Ippolitov, Artem Isakov, T. Isidori, Md Samsul Islam, M. Ivanov, В. Иванов, M. Jabłoński, B. Jacak, N. Jacazio, Peter Martin Jacobs, Slavka Jadlovska, Jan Jadlovsky, Syaefudin Jaelani, Ludwig Albert Jaffe, Cristiane Jahnke, Monika Joanna Jakubowska, M. A. Janik, Thomas Janson, Marko Jerčić, S. Jia, Alom Antonio Paz Jimenez, F. Jonas, J. M. Jowett, J. Jung, M. Jung, A. Junique, Anton Jusko, Jetnipit Kaewjai, Annalena Sophie Kalteyer, Alexander Philipp Kalweit, Vladimir Kaplin, A. Karasu Uysal, D. Karatovic, O. Karavichev, T. Karavicheva, P. Karczmarczyk, E. Karpechev, Ralf Keidel, Darius Keijdener, Markus Keil, Bernhard Franz Ketzer, Shaista Khan, A. Khanzadeev, Y. Kharlov, A. Khatun, A. Khuntia, Miles Brower Kidson, B. Kileng, Beomkyu Kim, Chong Kim, D. J. Kim, E. J. Kim, J. Kim, Jinsook Kim, Junlee Kim, M. Kim, Se Yong Kim, T. Kim, Kento Kimura, Stefan Kirsch, I. Kisel, Sergey Kiselev, A. Kisiel, Jacek Kitowski, Jennifer Lynn Klay, J. Klein, Spencer Robert Klein, C. Klein-Bösing, Matthias Kleiner, Thomas Klemenz, Alexander Kluge, Anders Garritt Knospe, C. Kobdaj, T. Kollegger, Andrey Kondratyev, Natalia Kondratyeva, E. Kondratyuk, Joshua Leon Konig, Stephan Alexander Konigstorfer, P. J. Konopka, G. Kornakov, Maximilian Korwieser, Sebastian Dominik Koryciak, Artem Kotliarov, V. Kovalenko, M. Kowalski, V. Kozhuharov, Ivan Kralik, A. Kravčáková, Lukas Kreis, Marian Krivda, Filip Krizek, K. Krizkova Gajdosova, Martin Kroesen, M. Krüger, Diana Mária Krupová, E. Kryshen, V. Kučera, Christian Claude Kuhn, P. G. Kuijer, Takuya Kumaoka, Deekshit Kumar, L. Kumar, Navneet Kumar, Shyam Kumar, Podist Kurashvili, A. Kurepin, A. Kuryakin, Svetlana Kushpil, J. Kvapil, M. J. Kweon, Jiyeon Kwon, Y. Kwon, Sarah Louise La Pointe, Paola La Rocca, Y. S. Lai, Anantachai Lakrathok, M. Lamanna, Rune Langoy, P. Larionov, E. Laudi, Lukas Lautner, R. Lavicka, T. Lazareva, R. Lea, H. Lee, G. Legras, Johannes Lehrbach, R. C. Lemmon, I. León Monzón, Marcel Markus Lesch, Ezra Douglas Lesser, Michael Lettrich, P. Lévai, Xiaomei Li, X. L. Li, Jorgen Andre Lien, R. Lietava, I. Likmeta, Bong-Hwi Lim, Sanghoon Lim, Volker Lindenstruth, A. Lindner, C. Lippmann, Alwina Ruixin Liu, J. Liu, Ingrid Mckibben Lofnes, Constantinos Loizides, S. Lökòs, J. Lömker, P. Loncar, J. A. López, Xavier Bernard Lopez, Ernesto Lopez Torres, P. Lu, M. Lunardon, G. Luparello, Y. G., Alla Maevskaya, M. Mager, T. Mahmoud, A. Maire, Martin Vasilev Makariev, Mikhail Malaev, Giovanni Malfattore, N. M. Malik, Qasim Malik, Salman Khurshid Malik, Liudmila Malinina, Dukhishyam Mallick, Neelkamal Mallick, G. Mandaglio, Sushobhan Kumar Mandal, V. Manko, Franck Manso, V. Manzari, Yaxian Mao, G. V. Margagliotti, A. Margotti, Ana Maria Marin, C. Markert, Paolo Martinengo, Jacobb Lee Martinez, Mario Iván Martínez Hernández, G. Martınez García, Silvia Masciocchi, M. Masera, A. Masoni, Laure Marie Massacrier, Annalisa Mastroserio, O. Matonoha, P. F. T. Matuoka, A. Matyja, C. Mayer, Antonio Lafuente Mazuecos, F. Mazzaschi, M. Mazzilli, Joyful Elma Mdhluli, Adrian Florin Mechler, Y. Melikyan, A. Menchaca-Rocha, E. Meninno, A. S. Menon, Michal Meres, Sibaliso Mhlanga, Yasuo Miake, L. Micheletti, Lucrezia Camilla Migliorin, Dimitar Lubomirov Mihaylov, Konstantin Mikhaylov, A. N. Mishra, D. Miśkowiec, A. Modak, Auro Prasad Mohanty, B. Mohanty, M. Mohisin Khan, Mikael Andreas Molander, Zuzana Moravcova, C. Mordasini, Denise Aparecida Moreira de Godoy, Igor Morozov, Andreas Morsch, Teo Mrnjavac, V. Muccifora, S. Muhuri, James Declan Mulligan, A. Mulliri, M. G. Munhoz, Robert Helmut Münzer, Hikari Murakami, S. Murray, L. Musa, Jan Musinsky, Julian Wojciech Myrcha, Bharati Naik, Anjali Ila Nambrath, Basanta Kumar Nandi, R. Nania, E. Nappi, Adrian Fereydon Nassirpour, Abhishek Nath, C. Nattrass, Momchil Nikolaev Naydenov, Alexandra Neagu, Adrian-Eduard Negru, L. Nellen, Simon Voigt Nesbø, Gvozden Neskovic, Dmitrii Nesterov, B. S. Nielsen, Sergey Nikolaev, S. Nikulin, Vladimir Nikulin, Francesco Noferini, Seoyoung Noh, Petr Nomokonov, J. Norman, N. Novitzky, P. Nowakowski, A. Nyanin, Joakim Ingemar Nystrand, M. Ogino, A. Ohlson, Vitaly Okorokov, J. Oleniacz, Antonio Carlos Oliveira da Silva, M. H. Oliver, A. Önnerstad, C. Oppedisano, A. Ortiz Velasquez, Jacek Tomasz Otwinowski, Motomi Oya, K. Oyama, Y. Pachmayer, Sonali Padhan, Davide Pagano, Guy Paić, Antonio Palasciano, S. Panebianco, Hanseo Park, Hyebin Park, Jonghan Park, Jasper Elias Parkkila, Rajendra Nath Patra, B. Paul, H. Pei, T. Peitzmann, X. Peng, Luis Gustavo Pereira, Guillermo Mesa Perez, S. Perrin, Yury Pestov, V. Petráček, V. Petrov, M. Petrovici, R. P. Pezzi, Stefano Piano, M. Pikna, P. Pillot, Ombretta Pinazza, Lawrence Pinsky, C. Pinto, S. Pisano, Mateusz Andrzej Ploskon, M. Planinić, Fabian Pliquett, Martin Poghosyan, B. Polichtchouk, Stefano Politano, Nikola Poljak, A. Pop, Sarah Julie Porteboeuf, V. Pozdniakov, Kshitish Kumar Pradhan, Suraj Prasad, R. Preghenella, F. Prino, C. A. Pruneau, Igor Pshenichnov, Maximiliano Puccio, S. Pucillo, Zuzana Pugelova, S. Qiu, Luca Quaglia, Raquel Estefania Quishpe Quishpe, Andry Malala Rakotozafindrabe, L. Ramello, F. Rami, Saul Anibal Rodriguez Ramirez, Thibaut Albert Rancien, M. Rasa, S. S. Räsänen, R. Rath, Max Philip Rauch, I. Ravasenga, K. F. Read, Christian Reckziegel, A. Redelbach, K. Redlich, C. A. Reetz, Attiq Ur Rehman, F. Reidt, Haakon André Reme-Ness, Klaus Johannes Reygers, Andrei Riabov, Viktor Riabov, R. Ricci, Matthias Rudolph Richter, Anton Albert Riedel, Werner Riegler, Catalin-Lucian Ristea, M. Rodríguez Cahuantzi, Roman Rogalev, Elena Rogochaya, Tim Sebastian Rogoschinski, D. Røhr, P.F. Rojas, Solangel Rojas Torres, Przemyslaw Stefan Rokita, Gleb Romanenko, F. Ronchetti, A. Rosano, Edgar Dominguez Rosas, Krystian Roslon, Andrea Rossi, Ankhi Roy, Subhadeep Roy, N. Rubini, D. Ruggiano, R. Rui, Boris Rumyantsev, Pawel Grzegorz Russek, R. Russo, A. Rustamov, Evgeny Ryabinkin, Yury Ryabov, Andrzej Krzysztof Rybicki, H. Rytkönen, W. Rzesa, O. A. M. Saarimaki, Rita Sadek, Samrangy Sadhu, S. Sadovsky, Jon-Are Saetre, K. Šafařı́k, S. K. Saha, Swati Saha, B. Sahoo, R. Sahoo, Sarita Sahoo, Dushmanta Sahu, Pradip Kumar Sahu, Jogender Saini, Shingo Sakai, Malavika Panikkassery Salvan, Sanjeev Singh Sambyal, I. Sanna, Thiago Badaro Saramela, D. Sarkar, Nachiketa Sarkar, P. Sarma, Valerio Sarritzu, V. M. Sarti, M. H. P. Sas, Johann Joachim Schambach, Horst Sebastian Scheid, Claudiu Cornel Schiaua, R. Schicker, Alexander Schmah, Christian Joachim Schmidt, Hans Rudolf Schmidt, Marten Ole Schmidt, Martin Schmidt, Nicolas Schmidt, Austin Robert Schmier, Romain Schotter, Alexander Schroter, J. Schukraft, K. Schwarz, K. Schweda, G. Scioli, E. Scomparin, Janet Elizabeth Seger, Yuko Sekiguchi, Daiki Sekihata, Ilya Selyuzhenkov, S. Senyukov, Jin Joo Seo, D. Serebryakov, Laura Serksnyte, A. Sevcenco, Tebogo Joyce Shaba, Alexandre Shabetai, Ruben Shahoyan, A. Shangaraev, A. Sharma, Binti Sharma, Deependra Sharma, Himanshu Sharma, M. Sharma, Samarth Sharma, Sheetal Sharma, Upasana Sharma, Afnan Shatat, Oveis Sheibani, K. Shigaki, Maya Hachiya Shimomura, Jaehyuck Shin, S. Shirinkin, Qiye Shou, S. Siddhanta, Teodor Siemiarczuk, Tiago Fiorini da Silva, D. Silvermyr, Tawanchat Simantathammakul, Radoslav Simeonov, Balwan Singh, Bhawani Singh, Ranbir Singh, Randhir Singh, R. Singh, Sweta Singh, V. Singhal, Tinku Sarkar - Sinha, Branislav Sitár, Mario Sitta, Bernhard Skaali, Georgijs Skorodumovs, Maciej Slupecki, Nikolai Smirnov, R. J. M. Snellings, Emilie Haugland Solheim, Jihye Song, Arnon Songmoolnak, F. Soramel, Rik Spijkers, Iwona Anna Sputowska, J. Staa, Johanna Stachel, I. Stan, Patrick John Steffanic, Stephan Friedrich Stiefelmaier, D. Stocco, Ida Storehaug, Peter Stratmann, S. Strazzi, Christos Pliatskas Stylianidis, Alexandre Alarcon Do Passo Suaide, Christophe Pierre Suire, Mikhail Sukhanov, Miljenko Suljic, R. Sultanov, Vikash Sumberia, Suharyo Sumowidagdo, Sagarika Swain, I. Szarka, Maciej Szymkowski, Seyed Farid Taghavi, G. Taillepied, J. Takahashi, Ganesh Jagannath Tambave, Siyu Tang, Zebo Tang, J. D. Tapia Takaki, Nicolae Tapus, Lucia Anna Tarasovicova, Madalina-Gabriela Tarzila, Giovanni Francesco Tassielli, Arturo Tauro, Guillermo Tejeda Munoz, Adriana Telesca, Livia Terlizzi, C. Terrevoli, G. Tersimonov, S. Thakur, Deepa Thomas, Anatoly Tikhonov, Anthony Robert Timmins, Milan Tkáčik, T. Tkacik, A. Toia, Ryoka Tokumoto, N. Topilskaya, Marco Toppi, Fernando Torales Acosta, T. Tork, Arianna Grisel Torres Ramos, Antonio Trifiro, Andrea Sofia Triolo, S. Tripathy, Tulika Tripathy, Stefano Trogolo, Victor Trubnikov, W. H. Trzaska, Tomasz Piotr Trzcinski, Alexandr Tumkin, R. Turrisi, Trine Spedstad Tveter, Kjetil Ullaland, Berkin Ulukutlu, A. Uras, M. Urioni, G. L. Usaı́, Martin Vala, N. Valle, Lennart van Doremalen, M. van Leeuwen, C. A. van Veen, Roelof Jan Gijs van Weelden, P. Vande Vyvre, D. Varga, Z. Varga, Maria Vasileiou, Andrey Vasiliev, O. Vázquez Doce, Omar Vázquez Rueda, V. Vechernin, Ermanno Vercellin, Sergio Vergara Limon, L. Vermunt, Robert Vertesi, M. Verweij, Linda Vickovic, Zabulon Vilakazi, Orlando Villalobos Baillie, Anna Villani, Gioacchino Vino, Alexander Vinogradov, T. Virgili, Vytautas Vislavicius, Alexander Vodopyanov, Martin Andreas Volkl, Kirill Voloshin, Sergey Voloshin, G. Volpe, Barthelemy von Haller, I. Vorobyev, Nikita Vozniuk, Janka Vrlakova, Chunzheng Wang, Dongfang Wang, Y. Wang, Adam Tadeusz Wegrzynek, Felix Thomas Weiglhofer, Sandro Christian Wenzel, Johannes Peter Wessels, Sierra Lisa Weyhmiller, Jens Wiechula, J. Wikne, Grzegorz Andrzej Wilk, J. Wilkinson, Guido Alexander Willems, Bernd Stefan Windelband, M. Winn, Josephina Rae Wright, Wenya Wu, Y. Wu, R. Xu, A. Yadav, Arun Kumar Yadav, Yorito Yamaguchi, S. Yang, S. Yano, Zhongbao Yin, I.-K. Yoo, J. H. Yoon, Shiming Yuan, A. Yuncu, V. Zaccolo, C. Zampolli, Federica Zanone, Nima Zardoshti, A. Zarochentsev, Petr Zavada, Mikhail Zhalov, L. Zhang, S. Zhang, Xiaoming Zhang, Yifei Zhang, Zhen Zhang, M. Zhao, Vladimir Zherebchevskii, Zhi Yu, Daicui Zhou, Y. Zhou, Jianhui Zhu, Ya Zhu, Stefan Cristi Zugravel, Nicola Zurlo
8Citations signalées, ce qui n’est pas une note de qualité
29Institutions déclarées
11Pays d’affiliation déclarés
Rattachement africain : fr, cz, de, ch, it, in, kr, sk, cn, mx, us.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
This letter reports the first measurement of spin alignment, with respect to the helicity axis, for D⁎+ vector mesons and their charge conjugates from charm-quark hadronisation (prompt) and from beauty-meson decays (non-prompt) in hadron collisions. The measurements were performed at midrapidity (|y|<0.8) as a function of transverse momentum (pT ) in proton–proton (pp) collisions collected by ALICE at the centre-of-mass energy s=13TeV. The diagonal spin density matrix element ρ00 of D⁎+ mesons was measured from the angular distribution of the D⁎+→D0(→K−π+)π+ decay products, in the D⁎+ rest frame, with respect to the D⁎+ momentum direction in the pp centre of mass frame. The ρ00 value for prompt D⁎+ mesons is consistent with 1/3, which implies no spin alignment. However, for non-prompt D⁎+ mesons an evidence of ρ00 larger than 1/3 is found. The measured value of the spin density element is ρ00=0.455±0.022(stat.)±0.035(syst.) in the 5<pT<20GeV/c interval, which is consistent with a Pythia 8 Monte Carlo simulation coupled with the EvtGen package, which implements the helicity conservation in the decay of D⁎+ meson from beauty mesons. In non-central heavy-ion collisions, the spin of the D⁎+ mesons may be globally aligned with the direction of the initial angular momentum and magnetic field. Based on the results for pp collisions reported in this letter it is shown that alignment of non-prompt D⁎+ mesons due to the helicity conservation coupled to the collective anisotropic expansion may mimic the signal of global spin alignment in heavy-ion collisions.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.
- Titre Crossref
- First measurement of prompt and non-prompt D⁎+ vector meson spin alignment in pp collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo linebreak="goodbreak" linebreakstyle="after">=</mml:mo><mml:mn>13</mml:mn></mml:math> TeV
- Date Crossref
- 01/11/2023
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Les institutions déclarées
Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Les sujets associés
Quantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions ResearchParticle physics theoretical and experimental studies