Journal of High Energy Physics · 2015 · 179 citations · 31 references
Natural SciencesPhysicsComputational PhysicsNuclear PhysicsParticle PhysicsNuclear DecayRadioactive Decay
A bstract A search for $$ {B}_s^0\to {\overline{D}}^0{f}_0(980) $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>s</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo>→</mml:mo><mml:msup><mml:mover><mml:mi>D</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mn>0</mml:mn></mml:msup><mml:msub><mml:mi>f</mml:mi><mml:mn>0</mml:mn></mml:msub><mml:mfenced><mml:mn>980</mml:mn></mml:mfenced></mml:math> decays is performed using 3 . 0 fb 1− of pp collision data recorded by the LHCb experiment during 2011 and 2012. The f 0 (980) meson is reconstructed through its decay to the π + π − final state in the mass window 900 MeV /c 2 < m ( π + π − ) < 1080 MeV /c 2 . No significant signal is observed. The first upper limits on the branching fraction of $$ \mathrm{\mathcal{B}}\left({B}_s^0\to {\overline{D}}^0{f}_0(980)\right)<3.1(3.4)\times 1{0}^{-6} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>ℬ</mml:mi><mml:mfenced><mml:mrow><mml:msubsup><mml:mi>B</mml:mi><mml:mi>s</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo>→</mml:mo><mml:msup><mml:mover><mml:mi>D</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mn>0</mml:mn></mml:msup><mml:msub><mml:mi>f</mml:mi><mml:mn>0</mml:mn></mml:msub><mml:mfenced><mml:mn>980</mml:mn></mml:mfenced></mml:mrow></mml:mfenced><mml:mo><</mml:mo><mml:mn>3.1</mml:mn><mml:mfenced><mml:mn>3.4</mml:mn></mml:mfenced><mml:mo>×</mml:mo><mml:mn>1</mml:mn><mml:msup><mml:mn>0</mml:mn><mml:mrow><mml:mo>−</mml:mo><mml:mn>6</mml:mn></mml:mrow></mml:msup></mml:math> are set at 90 % (95 %) confidence level.
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