Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions

Journal:
Nature Physics
Published:
Affiliations:
152
Authors:
1003

Research Highlight

Straining a strange soup for lessons on our Universe

© Science Photo Library - MEHAU KULYK/Getty Images

© Science Photo Library - MEHAU KULYK/Getty Images

Scientists have used collisions between protons to investigate strange hadrons, whose formation may provide deeper insights into the origins of our Universe, according to a study published in Nature Physics.

A few billionths of a second after the Big Bang, an extremely hot and dense primordial ‘soup’ formed from freely roaming quarks and gluons, the fundamental building blocks of the Universe. By studying the properties of this soup, known as a quark-gluon plasma, scientists can gain a better understanding into the origins of our Universe.

Using data from the ALICE detector at the Large Hadron Collider, an international team of physicists, including researchers from the Moscow Engineering Physics Institute, have observed for the first time the enhanced formation of strange hadrons, particles that contain at least one strange quark, which are indicative of the formation of the quark-gluon plasma, opening up a new way to study the origins of our Universe.

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References

  1. Nature Physics 13, 535–539 (2017). doi: 10.1038/nphys4111
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European Organization for Nuclear Research (CERN), Switzerland
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Goethe University Frankfurt (GU), Germany
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ExtreMe Matter Institute (EMMI), Germany
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National Institute for Subatomic Physics (Nikhef), Netherlands
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Heidelberg University (Uni Heidelberg), Germany
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Variable Energy Cyclotron Centre (VECC), India
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INFN Section in Torino, Italy
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Institute for Nuclear Research (INR), RAS, Russia
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Central China Normal University (CCNU), China
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University of São Paulo (USP), Brazil
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Yale University, United States of America (USA)
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INFN Section in Bologna, Italy
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SUBATECH, France
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University of Oslo (UiO), Norway
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University of Jammu, India
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University of Bergen (UIB), Norway
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University of Münster (WWU), Germany
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National Autonomous University of Mexico (UNAM), Mexico
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University of Copenhagen (UCPH), Denmark
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HUN-REN Wigner Research Centre for Physics, Hungary
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Benemérita Universidad Autónoma de Puebla (BUAP), Mexico
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Indian Institute of Technology Bombay (IIT Bombay), India
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Laboratoire de Physique de Clermont (LPC), France
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National Research Center Kurchatov Institute (NRCKI), Russia
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The Henryk Niewodniczanski Institute of Nuclear Physics (IFJ PAN), PAS, Poland
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Lawrence Berkeley National Laboratory (LBNL), United States of America (USA)
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University of Birmingham, United Kingdom (UK)
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University of Tsukuba, Japan
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Warsaw University of Technology (WUT), Poland
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INFN Section in Bari, Italy
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INFN Section in Padova, Italy
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INFN Frascati National Laboratory (LNF), Italy
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University of Houston (UH), United States of America (USA)
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Institute of Space Science (ISS), Romania
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Petersburg Nuclear Physics Institute (PNPI), NRCKI, Russia
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Russian Federal Nuclear Center - All-Russian Scientific Research Institute of Experimental Physics (RFNC-VNIIEF), Russia
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Wayne State University, United States of America (USA)
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National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russia
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University of Turin (UNITO), Italy
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Czech Technical University in Prague (CTU), Czech Republic
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Institut Pluridisciplinaire Hubert Curien (IPHC), France
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Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN HH), Romania
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Nuclear Physics Institute (UJF), CAS, Czech Republic
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A. A. Logunov Institute for High Energy Physics (IHEP), NRCKI, Russia
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University of Jyväskylä, Finland
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The University of Tokyo (UTokyo), Japan
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Saint Petersburg State University (SPbU), Russia
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Yonsei University, South Korea
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Bogolyubov Institute for Theoretical Physics, NASU, Ukraine
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CEA Institute of Research into the Fundamental Laws of the Universe (IRFU), France
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A.I. Alikhanov Institute of Theoretical and Experimental Physics (ITEP), NRCKI, Russia
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The University of Tennessee at Knoxville (UTK), United States of America (USA)
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Aligarh Muslim University (AMU), India
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INFN Section in Trieste, Italy
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Lund University (LU), Sweden
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National Centre for Nuclear Research (NCBJ), Poland
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Institute of Experimental Physics, SAS, Slovakia
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NRF iThemba Laboratory for Accelerator-Based Sciences (IThemba Labs), South Africa
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INFN Section in Cagliari, Italy
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INFN Gruppo Collegato di Salerno, Italy
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Comenius University in Bratislava (UK), Slovakia
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Indian Institute of Technology Indore (IIT Indore), India
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Institute of Nuclear Physics of Orsay (IPNO), France
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Laboratoire de Physique Subatomique et de Cosmologie (LPSC), France
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Pusan National University (PNU), South Korea
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Saha Institute of Nuclear Physics (SINP), India
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Institute of Nuclear Physics of Lyon (IPNL), France
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Bose Institute, India
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Centre for Energy, Environment and Technology (CIEMAT), Spain
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Technical University of Košice (TUKE), Slovakia
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Frankfurt Institute for Advanced Studies (FIAS), Germany
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COMSATS University Islamabad (CUI), Pakistan
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Helsinki Institute of Physics (HIP), Finland
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Hiroshima University (HU), Japan
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Institute of Physics, Bhubaneswar, India
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Panjab University (PU), India
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University of Zagreb, Croatia
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University of Bologna (UNIBO), Italy
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TUM Cluster of Excellence - Origin and Structure of the Universe (Excellence Cluster Universe), Germany
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INFN Section in Catania, Italy
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University of Padova (UNIPD), Italy
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National Institute of Science Education and Research (NISER), India
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The University of Texas at Austin (UT Austin), United States of America (USA)
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Dipartimento Interateneo di Fisica "Michelangelo Merlin", Italy
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Technical University of Munich (TUM), Germany
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Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV), Mexico
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University of Tübingen (Uni Tübingen), Germany
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Pavol Jozef Šafárik University in Košice (UPJŠ), Slovakia
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Inha University, South Korea
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National and Kapodistrian University of Athens (UOA), Greece
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University of Cape Town (UCT), South Africa
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Autonomous University of Sinaloa (UAS), Mexico
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State University of Campinas (UNICAMP), Brazil
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Bergen University College (HiB), Norway
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Oak Ridge National Laboratory (ORNL), United States of America (USA)
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University of Cagliari (UNICA), Italy
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University of Trieste (UNITS), Italy
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INFN Gruppo Collegato di Alessandria, Italy
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Gauhati University, India
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KTO Karatay University, Turkey
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Pontifical Catholic University of Peru (PUCP), Peru
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Stefan Meyer Institute for Subatomic Physics (SMI), ÖAW, Austria
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University of Split, Croatia
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University of Liverpool, United Kingdom (UK)
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Enrico Fermi Research Center (CREF), Italy
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University of Catania, Italy
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Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Cuba
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A. Alikhanyan National Laboratory (AANL) / Yerevan Physics Institute (YerPhi), Armenia
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Chicago State University (CSU), United States of America (USA)
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Sejong University, South Korea
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Buskerud and Vestfold University College (HBV), Norway
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Gangneung-Wonju National University (GWNU), South Korea
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Institute of Physics (FZU), CAS, Czech Republic
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Konkuk University, South Korea
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Creighton University, United States of America (USA)
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University of Rajasthan, India
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Suranaree University of Technology (SUT), Thailand
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STFC Daresbury Laboratory, United Kingdom (UK)
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INFN Section in Roma, Italy
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University of the Witwatersrand, Johannesburg (Wits University), South Africa
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G.I. Budker Institute of Nuclear Physics (INP), SB RAS, Russia
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California Polytechnic State University (Cal Poly), United States of America (USA)
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National Institute of Nuclear Physics and Particle Physics (IN2P3), CNRS, France
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China Institute of Atomic Energy (CIAE), China
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University of Santiago de Compostela (USC), Spain
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University of Bonn (Uni Bonn), Germany
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Indonesian Institute of Sciences (LIPI), Indonesia
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Korea Institute of Science and Technology Information (KISTI), South Korea
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INFN Legnaro National Laboratory (LNL), Italy
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Purdue University, United States of America (USA)
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Rudjer Boskovic Institute (RBI), Croatia
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University of Brescia (UNIBS), Italy
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University of Applied Sciences Worms, Germany
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Polytechnic University of Turin, Italy
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Sapienza University of Rome, Italy
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Nagasaki Institute of Applied Science, Japan
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