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Bounds on Lorentz invariance violation from muon fluctuations at the Pierre Auger Observatory

Journal Article · · No journal information
OSTI ID:3019829
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  1. Adelaide U.
  2. LIP, Lisbon
  3. OATo, Turin; INFN, Turin
  4. Centro Atomico Bariloche
  5. Nikhef, Amsterdam; Nijmegen U., IMAPP
  6. Gran Sasso
  7. Santiago de Compostela U., IGFAE
  8. Lehman Coll.
  9. ITeDA, Buenos Aires
  10. Milan U.; INFN, Milan
  11. INFN, Naples
  12. INFN, Turin; Turin U.
  13. UNAM, Morelia, Inst. Math.
  14. Pierre Auger Observ.
  15. L'Aquila U.; Gran Sasso
  16. Prague, Inst. Phys.
  17. Nova Gorica U.
  18. Colorado School of Mines
  19. LPSC, Grenoble
  20. Bonn, Max Planck Inst., Radioastron.
  21. Rosario U.
  22. KIT, Karlsruhe, ETP; ITeDA, Buenos Aires
  23. Nijmegen U., IMAPP; Nikhef, Amsterdam
  24. IJCLab, Orsay; IUF, Paris
  25. KIT, Karlsruhe, SCC
  26. Rio de Janeiro, CBPF; ICAS, UNSAM, Buenos Aires
  27. Cracow, INP
  28. Colorado State U.
  29. ITeDA, Buenos Aires; KIT, Karlsruhe, SCC
  30. Granada U.; CAFPE, Granada
  31. Vrije U., Brussels
  32. Chiapas Autonoma U.
  33. Catania U.; INFN, Catania; Catania, CSFNSM
  34. U. Sao Paulo (main)
  35. INFN, Lecce
  36. Palacky U.
  37. Campinas State U.
  38. ITeDA, Buenos Aires; Natl. Tech. U., San Rafael
  39. Naples U.; INFN, Naples
  40. INFN, Milan; Milan Polytechnic
  41. INFN, Lecce; Salento U.
  42. Rio de Janeiro Federal U.
  43. Case Western Reserve U.
  44. Siegen U.
  45. La Plata U.; Buenos Aires, CONICET
  46. Buenos Aires, CONICET; U. Buenos Aires
  47. Hamburg U., Inst. Theor. Phys. II
  48. Sao Paulo U., Sao Carlos
  49. IJCLab, Orsay
  50. Charles U.
  51. INFN, Turin
  52. Mexico U.
  53. Rio de Janeiro, CBPF; LIP, Lisbon
  54. Santander Industrial U.
  55. Parana U.
  56. KIT, Karlsruhe, ETP; KIT, Karlsruhe, SCC
  57. Aachen, Tech. Hochsch.
  58. ITeDA, Buenos Aires; U. Tech. Natl., Argentina
  59. Nijmegen U., IMAPP; ASFYON; Amsterdam U.; Nikhef, Amsterdam
  60. New York U. (main)
  61. KIT, Karlsruhe, IPE
  62. Brussels U., IIHE
  63. Michigan Tech. U.
  64. Stefan Inst., Ljubljana; Nova Gorica U.
  65. Delaware U.
  66. Chicago U., EFI; Osaka Metropolitan U.
  67. Nijmegen U., IMAPP
  68. Wuppertal U.
  69. Dortmund U.
  70. Rio de Janeiro, CBPF; UEFS, Feira de Santana; Rio de Janeiro Federal U.
  71. KIT, Karlsruhe, ETP
  72. Fermilab
  73. KIT, Karlsruhe, SCC; Vrije U., Brussels
  74. Bucharest, Inst. Space Science
  75. CEFET, Rio de Janeiro
  76. ABC Federal U.
  77. LPNHE, Paris
  78. Palermo U.; INFN, Catania; Catania U.; Catania, CSFNSM
  79. KIT, Karlsruhe, SCC; ITeDA, Buenos Aires
  80. Puebla U., Inst. Fis.
  81. NASA, Goddard
  82. Rome U., Tor Vergata; INFN, Rome
  83. Buenos Aires, CONICET
  84. Sao Paulo U.
  85. CINVESTAV, IPN
  86. L'Aquila U.
  87. Chicago U., EFI
  88. Lodz U.
  89. Dortmund U.; Tech. U., Dortmund (main)
  90. INFN, Rome
  91. Bucharest U.
  92. Vrije U., Brussels; Kapteyn Astron. Inst., Groningen
  93. Delaware U.; KIT, Karlsruhe, SCC
  94. Vrije U., Brussels; Brussels U., IIHE
  95. Penn State U.
  96. KIT, Karlsruhe, SCC; INFN, Milan; Milan U.
  97. Medellin U.
  98. Leeds U.
  99. Nova Gorica U.; Stefan Inst., Ljubljana
+ Show Author Affiliations
Quantum gravity theories often modify spacetime symmetries. In particular, Lorentz invariance may be violated when approaching the Planck scale. Although the scales at which interactions occur in extensive air showers induced by ultra-high-energy cosmic rays in the atmosphere are many orders of magnitude below the Planck scale, these violations might still be observable. In this work, the fluctuations in the number of muons in the extensive air showers measured at the Pierre Auger Observatory are exploited, for the first time, to constrain Lorentz invariance violations. The bounds derived in the hadronic sector are the strongest ever obtained, and do not rely on assumptions about the mass composition of ultra-high-energy cosmic rays. The fluctuations in the number of muons constitute a new and powerful observable to further explore Lorentz invariance in a region of the parameter space not accessible to other observables.
Research Organization:
Naples U.; IUF, Paris; ASFYON; Kapteyn Astron. Inst., Groningen; CEFET, Rio de Janeiro; OATo, Turin; Parana U.; U. Tech. Natl., Argentina; Salento U.; Medellin U.; Milan U.; Bonn, Max Planck Inst., Radioastron.; Prague, Inst. Phys.; Nijmegen U., IMAPP; La Plata U.; L'Aquila U.; Puebla U., Inst. Fis.; NASA, Goddard; Case Western Reserve U.; Osaka Metropolitan U.; Palermo U.; Catania U.; Gran Sasso; Lodz U.; ICAS, UNSAM, Buenos Aires; Bucharest, Inst. Space Science; UEFS, Feira de Santana; Lehman Coll.; Hamburg U., Inst. Theor. Phys. II; Colorado State U.; KIT, Karlsruhe, IPE; KIT, Karlsruhe, ETP; Michigan Tech. U.; Turin U.; Vrije U., Brussels; Tech. U., Dortmund (main); Chiapas Autonoma U.; LIP, Lisbon; Santander Industrial U.; Rio de Janeiro, CBPF; Catania, CSFNSM; U. Buenos Aires; Chicago U., EFI; UNAM, Morelia, Inst. Math.; Rio de Janeiro Federal U.; CINVESTAV, IPN; Aachen, Tech. Hochsch.; Mexico U.; Wuppertal U.; ABC Federal U.; Bucharest U.; Rome U., Tor Vergata; INFN, Catania; Dortmund U.; Nova Gorica U.; Brussels U., IIHE; IJCLab, Orsay; Centro Atomico Bariloche; LPNHE, Paris; LPSC, Grenoble; Charles U.; Sao Paulo U.; INFN, Turin; Siegen U.; Adelaide U.; Granada U.; Delaware U.; Penn State U.; Nikhef, Amsterdam; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Buenos Aires, CONICET; INFN, Lecce; New York U. (main); KIT, Karlsruhe, SCC; Colorado School of Mines; Natl. Tech. U., San Rafael; Santiago de Compostela U., IGFAE; INFN, Rome; INFN, Naples; Campinas State U.; Amsterdam U.; Pierre Auger Observ.; CAFPE, Granada; Milan Polytechnic; Cracow, INP; INFN, Milan; ITeDA, Buenos Aires; Rosario U.; Leeds U.; U. Sao Paulo (main); Sao Paulo U., Sao Carlos; Palacky U.; Stefan Inst., Ljubljana
Sponsoring Organization:
US Department of Energy
DOE Contract Number:
89243024CSC000002
OSTI ID:
3019829
Report Number(s):
FERMILAB-PUB-26-0098; oai:inspirehep.net:3120714; arXiv:2602.14720
Journal Information:
No journal information, Journal Name: No journal information
Country of Publication:
United States
Language:
English

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