4.2 Article

Meson and baryon femtoscopy in heavy-ion collisions at ALICE

Journal

NUCLEAR PHYSICS A
Volume 904, Issue -, Pages 447C-450C

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2013.02.045

Keywords

-

Funding

  1. State Committee of Science, Armenia
  2. Calouste Gulbenkian Foundation from Lisbon, Armenia
  3. Swiss Fonds Kidagan, Armenia
  4. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
  5. Financiadora de Estudos e Projetos (FINEP)
  6. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
  7. National Natural Science Foundation of China (NSFC)
  8. Chinese Ministry of Education (CMOE)
  9. Ministry of Science and Technology of China (MSTC)
  10. Ministry of Education and Youth of the Czech Republic
  11. Danish Natural Science Research Council
  12. Carlsberg Foundation
  13. Danish National Research Foundation
  14. European Research Council under the European Community's Seventh Framework Programme
  15. Helsinki Institute of Physics of Finland
  16. Academy of Finland
  17. French CNRS-IN2P3, France
  18. 'Region Pays de Loire', France
  19. 'Region Alsace', France
  20. 'Region Auvergne', France
  21. CEA, France
  22. German BMBF
  23. Helmholtz Association
  24. General Secretariat for Research and Technology, Ministry of Development, Greece
  25. Hungarian OTKA
  26. National Office for Research and Technology (NKTH)
  27. Department of Atomic Energy of the Government of India
  28. Department of Science and Technology of the Government of India
  29. Istituto Nazionale di Fisica Nucleare (INFN), Italy
  30. Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Italy
  31. MEXT, Japan
  32. Joint Institute for Nuclear Research, Dubna
  33. National Research Foundation of Korea (NRF)
  34. CONACYT, Mexico
  35. DGAPA, Mexico
  36. ALFA-EC
  37. HELEN Program (High-Energy physics Latin-American-European Network)
  38. Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands
  39. Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
  40. Research Council of Norway (NFR)
  41. Polish Ministry of Science and Higher Education
  42. National Authority for Scientific Research - NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS)
  43. Ministry of Education and Science of Russian Federation
  44. International Science and Technology Center
  45. Russian Academy of Sciences
  46. Russian Federal Agency of Atomic Energy
  47. Russian Federal Agency for Science and Innovations
  48. CERN-INTAS
  49. Ministry of Education of Slovakia
  50. Department of Science and Technology, South Africa
  51. CIEMAT, EELA, Ministerio de Educacion y Ciencia of Spain
  52. Xunta de Galicia (Conselleria de Educacion)
  53. CEA-DEN
  54. Cubaenergia, Cuba
  55. IAEA (International Atomic Energy Agency)
  56. Swedish Research Council (VR)
  57. Knut & Alice Wallenberg Foundation (KAW)
  58. Ukraine Ministry of Education and Science
  59. United Kingdom Science and Technology Facilities Council (STFC)
  60. United States Department of Energy
  61. United States National Science Foundation
  62. State of Texas
  63. State of Ohio

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We present results of femtoscopic analysis with (KsKs0)-K-0, (KK +/-)-K-+/-, pp, (p) over bar(p) over bar, p (p) over bar and Lambda(Lambda) over bar in Pb-Pb collisions at root s(NN) = 2.76 TeV and (KsKs0)-K-0 in pp collisions at root s = 7 TeV registered by ALICE at the LHC. The femtoscopic radius is extracted from the one-dimensional correlation functions. The analysis reveals that the emission source sizes of pions, kaons and protons measured in heavy-ion collisions exhibit approximate transverse mass scaling which is consistent with hydrodynamic collectivity prediction. Furthermore, baryon-antibaryon correlations are investigated to study the influence of Final State Interactions (annihilation). It may contribute to lower multiplicities of protons observed at LHC energies, with respect to predictions from thermal models.

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