☆ 4.8 Article

Observation of a New Xb State in Radiative Transitions to Y(1S) and Y(2S) at ATLAS

PHYSICAL REVIEW LETTERS (2012)

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Journal

PHYSICAL REVIEW LETTERS
Volume 108, Issue 15, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.152001

Keywords

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Categories

Physics, Multidisciplinary

Funding

  1. ANPCyT, Argentina
  2. YerPhI, Armenia
  3. ARC, Australia
  4. BMWF, Austria
  5. ANAS, Azerbaijan
  6. SSTC, Belarus
  7. CNPq
  8. FAPESP, Brazil
  9. NSERC
  10. NRC
  11. CFI, Canada
  12. CERN
  13. CONICYT, Chile
  14. CAS
  15. MOST
  16. NSFC, China
  17. COLCIENCIAS, Colombia
  18. MSMT CR
  19. MPO CR
  20. VSC CR
  21. Czech Republic
  22. DNRF
  23. DNSRC
  24. Lundbeck Foundation, Denmark
  25. ARTEMIS, European Union
  26. IN2P3-CNRS
  27. CEA-DSM/IRFU, France
  28. GNAS, Georgia
  29. BMBF
  30. DFG
  31. HGF
  32. MPG
  33. AvH Foundation, Germany
  34. GSRT, Greece
  35. ISF
  36. MINERVA
  37. GIF
  38. DIP
  39. Benoziyo Center, Israel
  40. INFN, Italy
  41. MEXT
  42. JSPS, Japan
  43. CNRST, Morocco
  44. FOM
  45. NWO, Netherlands
  46. RCN, Norway
  47. MNiSW, Poland
  48. GRICES
  49. FCT, Portugal
  50. MERYS (MECTS), Romania
  51. MES of Russia
  52. ROSATOM, Russian Federation
  53. JINR
  54. MSTD, Serbia
  55. MSSR, Slovakia
  56. ARRS
  57. MVZT, Slovenia
  58. DST/NRF, South Africa
  59. MICINN, Spain
  60. SRC
  61. Wallenberg Foundation, Sweden
  62. SER
  63. SNSF
  64. Cantons of Bern
  65. Geneva, Switzerland
  66. NSC, Taiwan
  67. TAEK, Turkey
  68. STFC
  69. Royal Society
  70. Leverhulme Trust, United Kingdom
  71. DOE
  72. NSF, U.S.
  73. ANPCyT, Argentina
  74. YerPhI, Armenia
  75. ARC, Australia
  76. BMWF, Austria
  77. ANAS, Azerbaijan
  78. SSTC, Belarus
  79. CNPq
  80. FAPESP, Brazil
  81. NSERC
  82. NRC
  83. CFI, Canada
  84. CERN
  85. CONICYT, Chile
  86. CAS
  87. MOST
  88. NSFC, China
  89. COLCIENCIAS, Colombia
  90. MSMT CR
  91. MPO CR
  92. VSC CR
  93. Czech Republic
  94. DNRF
  95. DNSRC
  96. Lundbeck Foundation, Denmark
  97. ARTEMIS, European Union
  98. IN2P3-CNRS
  99. CEA-DSM/IRFU, France
  100. GNAS, Georgia
  101. BMBF
  102. DFG
  103. HGF
  104. MPG
  105. AvH Foundation, Germany
  106. GSRT, Greece
  107. ISF
  108. MINERVA
  109. GIF
  110. DIP
  111. Benoziyo Center, Israel
  112. INFN, Italy
  113. MEXT
  114. JSPS, Japan
  115. CNRST, Morocco
  116. FOM
  117. NWO, Netherlands
  118. RCN, Norway
  119. MNiSW, Poland
  120. GRICES
  121. FCT, Portugal
  122. MERYS (MECTS), Romania
  123. MES of Russia
  124. ROSATOM, Russian Federation
  125. JINR
  126. MSTD, Serbia
  127. MSSR, Slovakia
  128. ARRS
  129. MVZT, Slovenia
  130. DST/NRF, South Africa
  131. MICINN, Spain
  132. SRC
  133. Wallenberg Foundation, Sweden
  134. SER
  135. SNSF
  136. Cantons of Bern
  137. Geneva, Switzerland
  138. NSC, Taiwan
  139. TAEK, Turkey
  140. STFC
  141. Royal Society
  142. Leverhulme Trust, United Kingdom
  143. DOE
  144. NSF, U.S.
  145. Science and Technology Facilities Council [ST/H001093/2, ST/G502320/1, PP/E003699/1, ST/M001431/1, ST/M001512/1, ST/K001329/1 ATLAS, ST/I003142/1, ST/I005803/1, ST/H001026/2, ST/H001026/1, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/K00073X/1, ST/F007337/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001093/1, ST/K001361/1, ST/K001337/1, ST/K001264/1 ATLAS, ST/K001361/1 ATLAS Upgrades, ST/K001248/1 ATLAS, ST/J002798/1, ST/I005803/1 GRIDPP, ST/K001248/1, ST/K001361/1 ATLAS, ST/I003525/1, ST/K001337/1 ATLAS, ST/I000186/1, ST/J005576/1, ST/J004944/1, ST/K001361/1 LHCb, ST/J004928/1 ATLAS Upgrade, GRIDPP, ATLAS, PP/E003699/2, ST/I006080/1, ST/J004928/1, PP/E003087/1, ST/I003517/1, ST/L001144/1] Funding Source: researchfish
  146. ICREA Funding Source: Custom
  147. STFC [PP/E000355/1, ST/F008015/1, ST/H001085/1, ST/L001195/1, ST/H001093/1, ST/H006737/1, ST/H001085/2, ST/K000705/1, ST/K00140X/1, ST/L00352X/1, ST/J005568/1, ST/M000761/1, ST/H001069/2, ST/F007094/1, ST/K001361/1, ST/L003392/1, ST/L003112/1, LHCb Upgrades, ST/I505572/1, LHCb, ST/J004332/1, ST/K000748/1, ST/M001431/1, ST/H001093/2, ST/K003410/1, ST/H00081X/1, ST/K004646/1, ST/K00073X/1, ST/K00137X/1, ST/G005974/1, ST/K001604/1, ST/H00081X/2, PP/E000347/1, ST/H00100X/2, ST/L001144/1, ST/H00100X/1] Funding Source: UKRI

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The chi(b)(np) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at root s=7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb(-1), these states are reconstructed through their radiative decays to Y(1S,2S) with Y ->mu(+)mu(-). In addition to the mass peaks corresponding to the decay modes chi(b)(1P,2P)-> Y(1S)gamma, a new structure centered at a mass of 10.530 +/- 0.005(stat)+/- 0.009(syst) GeV is also observed, in both the Y(1S)gamma and Y(2S)gamma decay modes. This structure is interpreted as the chi(b)(3P) system.

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