☆ 4.8 Article

Searches for new physics using the t(t)over-bar invariant mass distribution in pp collisions at √s=8 TeV

PHYSICAL REVIEW LETTERS (2013)

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Journal

PHYSICAL REVIEW LETTERS
Volume 111, Issue 21, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.211804

Keywords

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Categories

Physics, Multidisciplinary

Funding

  1. BMWF (Austria)
  2. FWF (Austria)
  3. FNRS (Belgium)
  4. FWO (Belgium)
  5. CNPq (Brazil)
  6. CAPES (Brazil)
  7. FAPERJ (Brazil)
  8. FAPESP (Brazil)
  9. MES (Bulgaria)
  10. CERN
  11. CAS (China)
  12. MoST (China)
  13. NSFC (China)
  14. COLCIENCIAS (Colombia)
  15. MSES (Croatia)
  16. RPF (Cyprus)
  17. MoER [SF0690030s09]
  18. ERDF (Estonia)
  19. Academy of Finland (Finland)
  20. MEC (China)
  21. HIP (Finland)
  22. CEA (France)
  23. CNRS/IN2P3 (France)
  24. BMBF (Germany)
  25. GSRT (Greece)
  26. OTKA (Hungary)
  27. NKTH (Hungary)
  28. DAE (India)
  29. DST (India)
  30. IPM (Iran)
  31. SFI (Ireland)
  32. INFN (Italy)
  33. NRF (Republic of Korea)
  34. WCU (Republic of Korea)
  35. LAS (Lithuania)
  36. CINVESTAV (Mexico)
  37. CONACYT (Mexico)
  38. SEP (Mexico)
  39. UASLP-FAI (Mexico)
  40. MBIE (New Zealand)
  41. PAEC (Pakistan)
  42. MSHE (Poland)
  43. NSC (Poland)
  44. FCT (Portugal)
  45. JINR (Dubna)
  46. MON (Russia)
  47. RosAtom (Russia)
  48. RAS (Russia)
  49. RFBR (Russia)
  50. MESTD (Serbia)
  51. SEIDI (Spain)
  52. CPAN (Spain)
  53. Swiss Funding Agencies (Switzerland)
  54. NSC (Taipei)
  55. ThEPCenter (Thailand)
  56. IPST (Thailand)
  57. STAR (Thailand)
  58. NSTDA (Thailand)
  59. TUBITAK (Turkey)
  60. TAEK (Turkey)
  61. NASU (Ukraine)
  62. STFC (United Kingdom)
  63. DOE (USA)
  64. NSF (USA)
  65. STFC [ST/H000925/1, ST/G502347/1, ST/L00609X/1, ST/K001639/1, ST/F006748/1, ST/I000410/1, ST/I005912/1, ST/I505580/1, ST/J005665/1, ST/F007094/1, ST/J004901/1, ST/I002200/1, ST/I505572/1, ST/F007434/1, ST/K003844/1, ST/K001604/1] Funding Source: UKRI
  66. Science and Technology Facilities Council [ST/K001604/1, ST/K001604/1 MICE/UKNF, ST/K001604/1 GRIDPP, ST/K001604/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/K001604/1 T2K, ST/K001604/1 LHCb, ST/K001604/1 SuperNEMO, ST/K001604/1 CMS Upgrade, CMS] Funding Source: researchfish
  67. Direct For Mathematical & Physical Scien
  68. Division Of Physics [0969555, 1205960, 1211067] Funding Source: National Science Foundation
  69. Division Of Physics
  70. Direct For Mathematical & Physical Scien [1151640, 1306951] Funding Source: National Science Foundation

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Searches for anomalous top quark-antiquark production are presented, based on pp collisions at root s = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb(-1), were collected with the CMS detector at the LHC. The observed t (t) over bar invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.

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