Observation of Λ Hyperon Local Polarization in p-Pb Collisions at sqrt[s_{NN}]=8.16 TeV
Affiliations
- 1 Yerevan Physics Institute, Yerevan, Armenia.
- 2 Institut für Hochenergiephysik, Vienna, Austria.
- 3 Universiteit Antwerpen, Antwerpen, Belgium.
- 4 Vrije Universiteit Brussel, Brussel, Belgium.
- 5 Université Libre de Bruxelles, Bruxelles, Belgium.
- 6 Ghent University, Ghent, Belgium.
- 7 Université Catholique de Louvain, Louvain-la-Neuve, Belgium.
- 8 Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil.
- 9 Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
- 10 Universidade Estadual Paulista, Universidade Federal do ABC, São Paulo, Brazil.
- 11 Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria.
- 12 University of Sofia, Sofia, Bulgaria.
- 13 Instituto De Alta Investigación, Universidad de Tarapacá, Casilla 7 D, Arica, Chile.
- 14 Beihang University, Beijing, China.
- 15 Department of Physics, Tsinghua University, Beijing, China.
- 16 Institute of High Energy Physics, Beijing, China.
- 17 State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 18 Guangdong Provincial Key Laboratory of Nuclear Science and Guangdong-Hong Kong Joint Laboratory of Quantum Matter, South China Normal University, Guangzhou, China.
- 19 Sun Yat-Sen University, Guangzhou, China.
- 20 University of Science and Technology of China, Hefei, China.
- 21 Nanjing Normal University, Nanjing, China.
- 22 Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, China.
- 23 Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) - Fudan University, Shanghai, China.
- 24 Zhejiang University, Hangzhou, Zhejiang, China.
- 25 Universidad de Los Andes, Bogota, Colombia.
- 26 Universidad de Antioquia, Medellin, Colombia.
- 27 University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia.
- 28 University of Split, Faculty of Science, Split, Croatia.
- 29 Institute Rudjer Boskovic, Zagreb, Croatia.
- 30 University of Cyprus, Nicosia, Cyprus.
- 31 Charles University, Prague, Czech Republic.
- 32 Escuela Politecnica Nacional, Quito, Ecuador.
- 33 Universidad San Francisco de Quito, Quito, Ecuador.
- 34 Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt.
- 35 Center for High Energy Physics (CHEP-FU), Fayoum University, El-Fayoum, Egypt.
- 36 National Institute of Chemical Physics and Biophysics, Tallinn, Estonia.
- 37 Department of Physics, University of Helsinki, Helsinki, Finland.
- 38 Helsinki Institute of Physics, Helsinki, Finland.
- 39 Lappeenranta-Lahti University of Technology, Lappeenranta, Finland.
- 40 IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.
- 41 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 42 Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France.
- 43 Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France.
- 44 Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France.
- 45 Georgian Technical University, Tbilisi, Georgia.
- 46 RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany.
- 47 RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany.
- 48 RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany.
- 49 Deutsches Elektronen-Synchrotron, Hamburg, Germany.
- 50 University of Hamburg, Hamburg, Germany.
- 51 Karlsruher Institut fuer Technologie, Karlsruhe, Germany.
- 52 Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece.
- 53 National and Kapodistrian University of Athens, Athens, Greece.
- 54 National Technical University of Athens, Athens, Greece.
- 55 University of Ioánnina, Ioánnina, Greece.
- 56 HUN-REN Wigner Research Centre for Physics, Budapest, Hungary.
- 57 MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University, Budapest, Hungary.
- 58 Faculty of Informatics, University of Debrecen, Debrecen, Hungary.
- 59 HUN-REN ATOMKI - Institute of Nuclear Research, Debrecen, Hungary.
- 60 Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary.
- 61 Panjab University, Chandigarh, India.
- 62 University of Delhi, Delhi, India.
- 63 Saha Institute of Nuclear Physics, HBNI, Kolkata, India.
- 64 Indian Institute of Technology Madras, Madras, India.
- 65 Tata Institute of Fundamental Research-A, Mumbai, India.
- 66 Tata Institute of Fundamental Research-B, Mumbai, India.
- 67 National Institute of Science Education and Research, An OCC of Homi Bhabha National Institute, Bhubaneswar, Odisha, India.
- 68 Indian Institute of Science Education and Research (IISER), Pune, India.
- 69 Isfahan University of Technology, Isfahan, Iran.
- 70 Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.
- 71 University College Dublin, Dublin, Ireland.
- 72 INFN Sezione di Bari, Bari, Italy.
- 73 Università di Bari, Bari, Italy.
- 74 Politecnico di Bari, Bari, Italy.
- 75 INFN Sezione di Bologna, Bologna, Italy.
- 76 Università di Bologna, Bologna, Italy.
- 77 INFN Sezione di Catania, Catania, Italy.
- 78 Università di Catania, Catania, Italy.
- 79 INFN Sezione di Firenze, Firenze, Italy.
- 80 Università di Firenze, Firenze, Italy.
- 81 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 82 INFN Sezione di Genova, Genova, Italy.
- 83 Università di Genova, Genova, Italy.
- 84 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 85 Università di Milano-Bicocca, Milano, Italy.
- 86 INFN Sezione di Napoli, Napoli, Italy.
- 87 Università di Napoli 'Federico II', Napoli, Italy.
- 88 Università della Basilicata, Potenza, Italy.
- 89 INFN Sezione di Padova, Padova, Italy.
- 90 Università di Padova, Padova, Italy.
- 91 INFN Sezione di Pavia, Pavia, Italy.
- 92 Università di Pavia, Pavia, Italy.
- 93 INFN Sezione di Perugia, Perugia, Italy.
- 94 Università di Perugia, Perugia, Italy.
- 95 INFN Sezione di Pisa, Pisa, Italy.
- 96 Scuola Normale Superiore di Pisa, Pisa, Italy.
- 97 Università di Pisa, Pisa, Italy.
- 98 Università di Siena, Siena, Italy.
- 99 INFN Sezione di Roma, Roma, Italy.
- 100 Sapienza Università di Roma, Roma, Italy.
- 101 INFN Sezione di Torino, Torino, Italy.
- 102 Università di Torino, Torino, Italy.
- 103 Università del Piemonte Orientale, Novara, Italy.
- 104 INFN Sezione di Trieste, Trieste, Italy.
- 105 Università di Trieste, Trieste, Italy.
- 106 Kyungpook National University, Daegu, Korea.
- 107 Department of Mathematics and Physics - GWNU, Gangneung, Korea.
- 108 Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea.
- 109 Hanyang University, Seoul, Korea.
- 110 Korea University, Seoul, Korea.
- 111 Kyung Hee University, Department of Physics, Seoul, Korea.
- 112 Sejong University, Seoul, Korea.
- 113 Seoul National University, Seoul, Korea.
- 114 University of Seoul, Seoul, Korea.
- 115 Yonsei University, Department of Physics, Seoul, Korea.
- 116 Sungkyunkwan University, Suwon, Korea.
- 117 College of Engineering and Technology, American University of the Middle East (AUM), Dasman, Kuwait.
- 118 Kuwait University - College of Science - Department of Physics, Safat, Kuwait.
- 119 Riga Technical University, Riga, Latvia.
- 120 University of Latvia (LU), Riga, Latvia.
- 121 Vilnius University, Vilnius, Lithuania.
- 122 National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia.
- 123 Universidad de Sonora (UNISON), Hermosillo, Mexico.
- 124 Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico.
- 125 Universidad Iberoamericana, Mexico City, Mexico.
- 126 Benemerita Universidad Autonoma de Puebla, Puebla, Mexico.
- 127 University of Montenegro, Podgorica, Montenegro.
- 128 University of Canterbury, Christchurch, New Zealand.
- 129 National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan.
- 130 AGH University of Krakow, Krakow, Poland.
- 131 National Centre for Nuclear Research, Swierk, Poland.
- 132 Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland.
- 133 Warsaw University of Technology, Warsaw, Poland.
- 134 Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal.
- 135 Faculty of Physics, University of Belgrade, Belgrade, Serbia.
- 136 VINCA Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
- 137 Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain.
- 138 Universidad Autónoma de Madrid, Madrid, Spain.
- 139 Universidad de Oviedo, Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA), Oviedo, Spain.
- 140 Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain.
- 141 University of Colombo, Colombo, Sri Lanka.
- 142 University of Ruhuna, Department of Physics, Matara, Sri Lanka.
- 143 CERN, European Organization for Nuclear Research, Geneva, Switzerland.
- 144 PSI Center for Neutron and Muon Sciences, Villigen, Switzerland.
- 145 ETH Zurich - Institute for Particle Physics and Astrophysics (IPA), Zurich, Switzerland.
- 146 Universität Zürich, Zurich, Switzerland.
- 147 National Central University, Chung-Li, Taiwan.
- 148 National Taiwan University (NTU), Taipei, Taiwan.
- 149 High Energy Physics Research Unit, Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
- 150 Çukurova University, Physics Department, Science and Art Faculty, Adana, Turkey.
- 151 Middle East Technical University, Physics Department, Ankara, Turkey.
- 152 Bogazici University, Istanbul, Turkey.
- 153 Istanbul Technical University, Istanbul, Turkey.
- 154 Istanbul University, Istanbul, Turkey.
- 155 Yildiz Technical University, Istanbul, Turkey.
- 156 Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkiv, Ukraine.
- 157 National Science Centre, Kharkiv Institute of Physics and Technology, Kharkiv, Ukraine.
- 158 University of Bristol, Bristol, United Kingdom.
- 159 Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 160 Imperial College, London, United Kingdom.
- 161 Brunel University, Uxbridge, United Kingdom.
- 162 Baylor University, Waco, Texas, USA.
- 163 Catholic University of America, Washington, DC, USA.
- 164 The University of Alabama, Tuscaloosa, Alabama, USA.
- 165 Boston University, Boston, Massachusetts, USA.
- 166 Brown University, Providence, Rhode Island, USA.
- 167 University of California, Davis, Davis, California, USA.
- 168 University of California, Los Angeles, California, USA.
- 169 University of California, Riverside, Riverside, California, USA.
- 170 University of California, San Diego, La Jolla, California, USA.
- 171 University of California, Santa Barbara - Department of Physics, Santa Barbara, California, USA.
- 172 California Institute of Technology, Pasadena, California, USA.
- 173 Carnegie Mellon University, Pittsburgh, Pennsylvania, USA.
- 174 University of Colorado Boulder, Boulder, Colorado, USA.
- 175 Cornell University, Ithaca, New York, USA.
- 176 Fermi National Accelerator Laboratory, Batavia, Illinois, USA.
- 177 University of Florida, Gainesville, Florida, USA.
- 178 Florida State University, Tallahassee, Florida, USA.
- 179 Florida Institute of Technology, Melbourne, Florida, USA.
- 180 University of Illinois Chicago, Chicago, Illinois, USA.
- 181 The University of Iowa, Iowa City, Iowa, USA.
- 182 Johns Hopkins University, Baltimore, Maryland, USA.
- 183 The University of Kansas, Lawrence, Kansas, USA.
- 184 Kansas State University, Manhattan, Kansas, USA.
- 185 University of Maryland, College Park, Maryland, USA.
- 186 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 187 University of Minnesota, Minneapolis, Minnesota, USA.
- 188 University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
- 189 State University of New York at Buffalo, Buffalo, New York, USA.
- 190 Northeastern University, Boston, Massachusetts, USA.
- 191 Northwestern University, Evanston, Illinois, USA.
- 192 University of Notre Dame, Notre Dame, Indiana, USA.
- 193 The Ohio State University, Columbus, Ohio, USA.
- 194 Princeton University, Princeton, New Jersey, USA.
- 195 University of Puerto Rico, Mayaguez, Puerto Rico, USA.
- 196 Purdue University, West Lafayette, Indiana, USA.
- 197 Purdue University Northwest, Hammond, Indiana, USA.
- 198 Rice University, Houston, Texas, USA.
- 199 University of Rochester, Rochester, New York, USA.
- 200 Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA.
- 201 University of Tennessee, Knoxville, Tennessee, USA.
- 202 Texas A&M University, College Station, Texas, USA.
- 203 Texas Tech University, Lubbock, Texas, USA.
- 204 Vanderbilt University, Nashville, Tennessee, USA.
- 205 University of Virginia, Charlottesville, Virginia, USA.
- 206 Wayne State University, Detroit, Michigan, USA.
- 207 University of Wisconsin - Madison, Madison, Wisconsin, USA.
- 208 An institute or international laboratory covered by a cooperation agreement with CERN.
- PMID: 41076707
- DOI: 10.1103/6ywq-gm61
Observation of Λ Hyperon Local Polarization in p-Pb Collisions at sqrt[s_{NN}]=8.16 TeV
Authors
Affiliations
- 1 Yerevan Physics Institute, Yerevan, Armenia.
- 2 Institut für Hochenergiephysik, Vienna, Austria.
- 3 Universiteit Antwerpen, Antwerpen, Belgium.
- 4 Vrije Universiteit Brussel, Brussel, Belgium.
- 5 Université Libre de Bruxelles, Bruxelles, Belgium.
- 6 Ghent University, Ghent, Belgium.
- 7 Université Catholique de Louvain, Louvain-la-Neuve, Belgium.
- 8 Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil.
- 9 Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
- 10 Universidade Estadual Paulista, Universidade Federal do ABC, São Paulo, Brazil.
- 11 Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria.
- 12 University of Sofia, Sofia, Bulgaria.
- 13 Instituto De Alta Investigación, Universidad de Tarapacá, Casilla 7 D, Arica, Chile.
- 14 Beihang University, Beijing, China.
- 15 Department of Physics, Tsinghua University, Beijing, China.
- 16 Institute of High Energy Physics, Beijing, China.
- 17 State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 18 Guangdong Provincial Key Laboratory of Nuclear Science and Guangdong-Hong Kong Joint Laboratory of Quantum Matter, South China Normal University, Guangzhou, China.
- 19 Sun Yat-Sen University, Guangzhou, China.
- 20 University of Science and Technology of China, Hefei, China.
- 21 Nanjing Normal University, Nanjing, China.
- 22 Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, China.
- 23 Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) - Fudan University, Shanghai, China.
- 24 Zhejiang University, Hangzhou, Zhejiang, China.
- 25 Universidad de Los Andes, Bogota, Colombia.
- 26 Universidad de Antioquia, Medellin, Colombia.
- 27 University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia.
- 28 University of Split, Faculty of Science, Split, Croatia.
- 29 Institute Rudjer Boskovic, Zagreb, Croatia.
- 30 University of Cyprus, Nicosia, Cyprus.
- 31 Charles University, Prague, Czech Republic.
- 32 Escuela Politecnica Nacional, Quito, Ecuador.
- 33 Universidad San Francisco de Quito, Quito, Ecuador.
- 34 Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt.
- 35 Center for High Energy Physics (CHEP-FU), Fayoum University, El-Fayoum, Egypt.
- 36 National Institute of Chemical Physics and Biophysics, Tallinn, Estonia.
- 37 Department of Physics, University of Helsinki, Helsinki, Finland.
- 38 Helsinki Institute of Physics, Helsinki, Finland.
- 39 Lappeenranta-Lahti University of Technology, Lappeenranta, Finland.
- 40 IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.
- 41 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 42 Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France.
- 43 Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France.
- 44 Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France.
- 45 Georgian Technical University, Tbilisi, Georgia.
- 46 RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany.
- 47 RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany.
- 48 RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany.
- 49 Deutsches Elektronen-Synchrotron, Hamburg, Germany.
- 50 University of Hamburg, Hamburg, Germany.
- 51 Karlsruher Institut fuer Technologie, Karlsruhe, Germany.
- 52 Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece.
- 53 National and Kapodistrian University of Athens, Athens, Greece.
- 54 National Technical University of Athens, Athens, Greece.
- 55 University of Ioánnina, Ioánnina, Greece.
- 56 HUN-REN Wigner Research Centre for Physics, Budapest, Hungary.
- 57 MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University, Budapest, Hungary.
- 58 Faculty of Informatics, University of Debrecen, Debrecen, Hungary.
- 59 HUN-REN ATOMKI - Institute of Nuclear Research, Debrecen, Hungary.
- 60 Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary.
- 61 Panjab University, Chandigarh, India.
- 62 University of Delhi, Delhi, India.
- 63 Saha Institute of Nuclear Physics, HBNI, Kolkata, India.
- 64 Indian Institute of Technology Madras, Madras, India.
- 65 Tata Institute of Fundamental Research-A, Mumbai, India.
- 66 Tata Institute of Fundamental Research-B, Mumbai, India.
- 67 National Institute of Science Education and Research, An OCC of Homi Bhabha National Institute, Bhubaneswar, Odisha, India.
- 68 Indian Institute of Science Education and Research (IISER), Pune, India.
- 69 Isfahan University of Technology, Isfahan, Iran.
- 70 Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.
- 71 University College Dublin, Dublin, Ireland.
- 72 INFN Sezione di Bari, Bari, Italy.
- 73 Università di Bari, Bari, Italy.
- 74 Politecnico di Bari, Bari, Italy.
- 75 INFN Sezione di Bologna, Bologna, Italy.
- 76 Università di Bologna, Bologna, Italy.
- 77 INFN Sezione di Catania, Catania, Italy.
- 78 Università di Catania, Catania, Italy.
- 79 INFN Sezione di Firenze, Firenze, Italy.
- 80 Università di Firenze, Firenze, Italy.
- 81 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 82 INFN Sezione di Genova, Genova, Italy.
- 83 Università di Genova, Genova, Italy.
- 84 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 85 Università di Milano-Bicocca, Milano, Italy.
- 86 INFN Sezione di Napoli, Napoli, Italy.
- 87 Università di Napoli 'Federico II', Napoli, Italy.
- 88 Università della Basilicata, Potenza, Italy.
- 89 INFN Sezione di Padova, Padova, Italy.
- 90 Università di Padova, Padova, Italy.
- 91 INFN Sezione di Pavia, Pavia, Italy.
- 92 Università di Pavia, Pavia, Italy.
- 93 INFN Sezione di Perugia, Perugia, Italy.
- 94 Università di Perugia, Perugia, Italy.
- 95 INFN Sezione di Pisa, Pisa, Italy.
- 96 Scuola Normale Superiore di Pisa, Pisa, Italy.
- 97 Università di Pisa, Pisa, Italy.
- 98 Università di Siena, Siena, Italy.
- 99 INFN Sezione di Roma, Roma, Italy.
- 100 Sapienza Università di Roma, Roma, Italy.
- 101 INFN Sezione di Torino, Torino, Italy.
- 102 Università di Torino, Torino, Italy.
- 103 Università del Piemonte Orientale, Novara, Italy.
- 104 INFN Sezione di Trieste, Trieste, Italy.
- 105 Università di Trieste, Trieste, Italy.
- 106 Kyungpook National University, Daegu, Korea.
- 107 Department of Mathematics and Physics - GWNU, Gangneung, Korea.
- 108 Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea.
- 109 Hanyang University, Seoul, Korea.
- 110 Korea University, Seoul, Korea.
- 111 Kyung Hee University, Department of Physics, Seoul, Korea.
- 112 Sejong University, Seoul, Korea.
- 113 Seoul National University, Seoul, Korea.
- 114 University of Seoul, Seoul, Korea.
- 115 Yonsei University, Department of Physics, Seoul, Korea.
- 116 Sungkyunkwan University, Suwon, Korea.
- 117 College of Engineering and Technology, American University of the Middle East (AUM), Dasman, Kuwait.
- 118 Kuwait University - College of Science - Department of Physics, Safat, Kuwait.
- 119 Riga Technical University, Riga, Latvia.
- 120 University of Latvia (LU), Riga, Latvia.
- 121 Vilnius University, Vilnius, Lithuania.
- 122 National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia.
- 123 Universidad de Sonora (UNISON), Hermosillo, Mexico.
- 124 Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico.
- 125 Universidad Iberoamericana, Mexico City, Mexico.
- 126 Benemerita Universidad Autonoma de Puebla, Puebla, Mexico.
- 127 University of Montenegro, Podgorica, Montenegro.
- 128 University of Canterbury, Christchurch, New Zealand.
- 129 National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan.
- 130 AGH University of Krakow, Krakow, Poland.
- 131 National Centre for Nuclear Research, Swierk, Poland.
- 132 Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland.
- 133 Warsaw University of Technology, Warsaw, Poland.
- 134 Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal.
- 135 Faculty of Physics, University of Belgrade, Belgrade, Serbia.
- 136 VINCA Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
- 137 Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain.
- 138 Universidad Autónoma de Madrid, Madrid, Spain.
- 139 Universidad de Oviedo, Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA), Oviedo, Spain.
- 140 Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain.
- 141 University of Colombo, Colombo, Sri Lanka.
- 142 University of Ruhuna, Department of Physics, Matara, Sri Lanka.
- 143 CERN, European Organization for Nuclear Research, Geneva, Switzerland.
- 144 PSI Center for Neutron and Muon Sciences, Villigen, Switzerland.
- 145 ETH Zurich - Institute for Particle Physics and Astrophysics (IPA), Zurich, Switzerland.
- 146 Universität Zürich, Zurich, Switzerland.
- 147 National Central University, Chung-Li, Taiwan.
- 148 National Taiwan University (NTU), Taipei, Taiwan.
- 149 High Energy Physics Research Unit, Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
- 150 Çukurova University, Physics Department, Science and Art Faculty, Adana, Turkey.
- 151 Middle East Technical University, Physics Department, Ankara, Turkey.
- 152 Bogazici University, Istanbul, Turkey.
- 153 Istanbul Technical University, Istanbul, Turkey.
- 154 Istanbul University, Istanbul, Turkey.
- 155 Yildiz Technical University, Istanbul, Turkey.
- 156 Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkiv, Ukraine.
- 157 National Science Centre, Kharkiv Institute of Physics and Technology, Kharkiv, Ukraine.
- 158 University of Bristol, Bristol, United Kingdom.
- 159 Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 160 Imperial College, London, United Kingdom.
- 161 Brunel University, Uxbridge, United Kingdom.
- 162 Baylor University, Waco, Texas, USA.
- 163 Catholic University of America, Washington, DC, USA.
- 164 The University of Alabama, Tuscaloosa, Alabama, USA.
- 165 Boston University, Boston, Massachusetts, USA.
- 166 Brown University, Providence, Rhode Island, USA.
- 167 University of California, Davis, Davis, California, USA.
- 168 University of California, Los Angeles, California, USA.
- 169 University of California, Riverside, Riverside, California, USA.
- 170 University of California, San Diego, La Jolla, California, USA.
- 171 University of California, Santa Barbara - Department of Physics, Santa Barbara, California, USA.
- 172 California Institute of Technology, Pasadena, California, USA.
- 173 Carnegie Mellon University, Pittsburgh, Pennsylvania, USA.
- 174 University of Colorado Boulder, Boulder, Colorado, USA.
- 175 Cornell University, Ithaca, New York, USA.
- 176 Fermi National Accelerator Laboratory, Batavia, Illinois, USA.
- 177 University of Florida, Gainesville, Florida, USA.
- 178 Florida State University, Tallahassee, Florida, USA.
- 179 Florida Institute of Technology, Melbourne, Florida, USA.
- 180 University of Illinois Chicago, Chicago, Illinois, USA.
- 181 The University of Iowa, Iowa City, Iowa, USA.
- 182 Johns Hopkins University, Baltimore, Maryland, USA.
- 183 The University of Kansas, Lawrence, Kansas, USA.
- 184 Kansas State University, Manhattan, Kansas, USA.
- 185 University of Maryland, College Park, Maryland, USA.
- 186 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 187 University of Minnesota, Minneapolis, Minnesota, USA.
- 188 University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
- 189 State University of New York at Buffalo, Buffalo, New York, USA.
- 190 Northeastern University, Boston, Massachusetts, USA.
- 191 Northwestern University, Evanston, Illinois, USA.
- 192 University of Notre Dame, Notre Dame, Indiana, USA.
- 193 The Ohio State University, Columbus, Ohio, USA.
- 194 Princeton University, Princeton, New Jersey, USA.
- 195 University of Puerto Rico, Mayaguez, Puerto Rico, USA.
- 196 Purdue University, West Lafayette, Indiana, USA.
- 197 Purdue University Northwest, Hammond, Indiana, USA.
- 198 Rice University, Houston, Texas, USA.
- 199 University of Rochester, Rochester, New York, USA.
- 200 Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA.
- 201 University of Tennessee, Knoxville, Tennessee, USA.
- 202 Texas A&M University, College Station, Texas, USA.
- 203 Texas Tech University, Lubbock, Texas, USA.
- 204 Vanderbilt University, Nashville, Tennessee, USA.
- 205 University of Virginia, Charlottesville, Virginia, USA.
- 206 Wayne State University, Detroit, Michigan, USA.
- 207 University of Wisconsin - Madison, Madison, Wisconsin, USA.
- 208 An institute or international laboratory covered by a cooperation agreement with CERN.
- PMID: 41076707
- DOI: 10.1103/6ywq-gm61
Abstract
The polarization of the Λ and Λ[over ¯] hyperons along the beam direction has been measured in proton-lead (p-Pb) collisions at a center-of-mass energy per nucleon pair of 8.16 TeV. The data were obtained with the CMS detector at the LHC and correspond to an integrated luminosity of 186.0±6.5 nb^{-1}. A significant azimuthal dependence of the hyperon polarization, characterized by the second-order Fourier sine coefficient P_{z,s2}, is observed. The P_{z,s2} values decrease as a function of charged particle multiplicity, but increase with transverse momentum. A hydrodynamic model that describes the observed P_{z,s2} values in nucleus-nucleus collisions by introducing vorticity effects does not reproduce either the sign or the magnitude of the p-Pb results. These observations pose a challenge to the current theoretical implementation of spin polarization in heavy ion collisions and offer new insights into the origin of spin polarization in hadronic collisions at LHC energies.
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