University of Birmingham > Talks@bham > Particle Physics Seminars > KLEVER: An experiment to measure the BR(K_L -> pi0 + nubar + nu) at the CERN SPS

KLEVER: An experiment to measure the BR(K_L -> pi0 + nubar + nu) at the CERN SPS

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If you have a question about this talk, please contact Prof Ian Kenyon.

Precise measurements of the branching ratios (BRs) for the flavor-changing neutral current decays K → pi nubar nu can provide unique constraints on CKM unitarity and, potentially, evidence for new physics. The NA62 experiment at the CERN SPS is currently collecting data and will measure BR(K+ → pi+ nubar nu) to within 10%. The KOTO experiment at J-PARC plans to measure BR(K_L → pi0 nubar nu) with similar precision using a low-energy neutral beam, but no official proposal has yet been made. As a natural continuation of the NA62 physics program, we are designing the KLEVER experiment to measure BR(K_L → pi0 nubar nu) to ~20% using a high-energy neutral beam at the CERN SPS starting in LHC Run 4. Our approach is complementary to that of KOTO . We present findings from our feasibility studies, with an emphasis on the design challenges faced and the potential sensitivity for the measurement of BR(K_L → pi0 nubar nu).

This talk is part of the Particle Physics Seminars series.

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