☆ 4.7 Article

A search for prompt lepton-jets in pp collisions at √s=7 TeV with the ATLAS detector

PHYSICS LETTERS B (2013)

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PHYSICS LETTERS B
卷 719, 期 4-5, 页码 299-317

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ELSEVIER
DOI: 10.1016/j.physletb.2013.01.034

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类别

Astronomy & Astrophysics Physics, Nuclear Physics, Particles & Fields

资金

  1. ANPCyT, Argentina
  2. YerPhI, Armenia
  3. ARC, Australia
  4. BMWF, Austria
  5. FWF, Austria
  6. ANAS, Azerbaijan
  7. SSTC, Belarus
  8. CNPq, Brazil
  9. FAPESP, Brazil
  10. NSERC, Canada
  11. NRC, Canada
  12. CFI, Canada
  13. CERN
  14. CONICYT, Chile
  15. CAS, China
  16. MOST, China
  17. NSFC, China
  18. COLCIENCIAS, Colombia
  19. MSMT CR, Czech Republic
  20. MPO CR, Czech Republic
  21. VSC CR, Czech Republic
  22. DNRF, Denmark
  23. DNSRC, Denmark
  24. Lundbeck Foundation, Denmark
  25. EPLANET, European Union
  26. ERC, European Union
  27. NSRF, European Union
  28. IN2P3-CNRS, France
  29. CEA-DSM/IRFU, France
  30. GNSF, Georgia
  31. BMBF, Germany
  32. DFG, Germany
  33. HGF, Germany
  34. MPG, Germany
  35. AvH Foundation, Germany
  36. GSRT, Greece
  37. NSRF, Greece
  38. ISF, Israel
  39. MINERVA, Israel
  40. GIF, Israel
  41. DIP, Israel
  42. Benoziyo Center, Israel
  43. INFN, Italy
  44. MEXT, Japan
  45. JSPS, Japan
  46. CNRST, Morocco
  47. FOM, Netherlands
  48. NWO, Netherlands
  49. BRF, Norway
  50. RCN, Norway
  51. MNiSW, Poland
  52. GRICES, Portugal
  53. FCT, Portugal
  54. MERYS (MECTS), Romania
  55. MES of Russia, Russian Federation
  56. ROSATOM, Russian Federation
  57. JINR
  58. MSTD, Serbia
  59. MSSR, Slovakia
  60. ARRS, Slovenia
  61. MVZT, Slovenia
  62. DST/NRF, South Africa
  63. MICINN, Spain
  64. SRC, Sweden
  65. Wallenberg Foundation, Sweden
  66. SER, Switzerland
  67. SNSF, Switzerland
  68. Canton of Bern, Switzerland
  69. Cantons of Geneva, Switzerland
  70. NSC, Taiwan
  71. TAEK, Turkey
  72. STFC, United Kingdom
  73. Royal Society, United Kingdom
  74. Leverhulme Trust, United Kingdom
  75. DOE , United States of America
  76. NSF, United States of America
  77. STFC [ST/I005803/1, ST/J005460/1, PP/E003087/1, ST/I000186/1, ST/L001144/1, ST/J004936/1, ST/K001388/1, ST/K001329/1, ST/M001431/1, ST/I505756/1, ST/K003437/1, ST/H001093/2, ST/K001248/1, ST/J005541/1, ST/K00073X/1, ST/K00137X/1, ST/M001512/1, PP/E003699/1, ST/H001026/2, ST/G502320/1, ST/K001337/1, ST/J004804/1, ST/I003525/1, ST/H00095X/2, ST/K001361/1, ST/L000970/1, ST/M000664/1, ST/K000713/1, ST/H001069/2, ST/J005576/1, ST/M000761/1, ST/J005568/1, ST/L00352X/1, PP/E003699/2, PP/E000347/1, ST/L003325/1, ST/J004944/1, ST/H001042/2, ST/F007337/1, ST/K00140X/1, ST/J501074/1, ST/H00095X/1, PP/E002757/1, ST/F007418/1, ST/M000753/1, ST/K000640/1, ST/H001026/1, ST/K501840/1, ST/K003496/1, ST/H001093/1, ST/F00754X/1, ST/L001004/1, ST/I006080/1, PP/E000487/1, ST/K003658/1, ST/J004928/1, ST/K000659/1, ST/H001042/1, ST/I005811/1, ST/K50208X/1] Funding Source: UKRI
  78. ICREA Funding Source: Custom
  79. Direct For Mathematical & Physical Scien
  80. Division Of Physics [1206092, 1119200] Funding Source: National Science Foundation
  81. Science and Technology Facilities Council [ST/K00073X/1, ST/J005460/1, GRIDPP, PP/E003699/2, ST/K003437/1, ST/J004936/1, ST/F00754X/1, ST/J005541/1, ST/L001144/1, PP/E003087/1, ST/J004928/1, ST/I006080/1, ST/K001388/1, ST/I000186/1, ST/J005568/1, ST/K001337/1 ATLAS, ST/K000713/1, ST/J005576/1, ST/K003496/1, ST/L000970/1 ATLAS Upgrades, ST/I005811/1, ST/L003325/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L00352X/1, ST/H001042/1, ST/H001042/2, ST/H001093/1, ST/K001361/1, ST/K501840/1, ST/K001337/1, ST/K001264/1 ATLAS, ST/H00095X/2, ST/I005803/1 GRIDPP, ST/M000761/1, ST/K001248/1, ST/K001361/1 ATLAS, ST/K00140X/1 ATLAS, ST/I003525/1, PP/E002757/1, ST/K000659/1, ST/L000970/1 ATLAS Upgrade, ST/K001396/1 ATLAS, ST/K003658/1 GRIDPP, ST/K001329/1 ATLAS, PP/E000487/1, ST/M000664/1, ST/J501074/1, ST/K003658/1, ST/J004804/1, ST/I005803/1, ST/H001026/2, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/L001004/1, ST/K001361/1 ATLAS Upgrades, ST/K003496/1 GRIDPP, ST/K001248/1 ATLAS, ST/K50208X/1, ST/J004928/1 ATLAS Upgrades, ST/F007418/1, ST/L000970/1, ST/K001361/1 LHCb, ST/J004928/1 ATLAS Upgrade, ST/K00140X/1, ST/K001329/1, ATLAS, ST/J004944/1, ST/K003437/1 GRIDPP, ST/H001093/2, ST/H00095X/1, ST/K501840/1 GRIDPP, ST/K00137X/1, ST/G502320/1, PP/E003699/1, ST/M001431/1, ST/M001512/1, ST/I505756/1, ST/F007337/1] Funding Source: researchfish

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We present a search for a light (mass < 2 GeV) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, denoted lepton-jets. The analysis uses 5 fb(-1) of root s = 7 TeV proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider to search for the following signatures: single lepton-jets with at least four muons; pairs of lepton-jets, each with two or more muons; and pairs of lepton-jets with two or more electrons. This study finds no statistically significant deviation from the Standard Model prediction and places 95% confidence-level exclusion limits on the production cross section times branching ratio of light bosons for several parameter sets of a Hidden Valley model. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.

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