KLEVER: An experiment to measure BR($K_L \rightarrow \pi^0\nu\bar{\nu}$) at the CERN SPS

  title={KLEVER: An experiment to measure BR(\$K\_L \rightarrow \pi^0\nu\bar\{\nu\}\$) at the CERN SPS},
  author={M. Moulson},
  journal={Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018)},
  • M. Moulson
  • Published 5 December 2018
  • Physics
  • Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018)
Precise measurements of the branching ratios for the flavor-changing neutral current decays $K\to\pi\nu\bar{\nu}$ can provide unique constraints on CKM unitarity and, potentially, evidence for new physics. It is important to measure both decay modes, $K^+\to\pi^+\nu\bar{\nu}$ and $K_L\to\pi^0\nu\bar{\nu}$, since different new physics models affect the rates for each channel differently. The goal of the NA62 experiment at the CERN SPS is to measure the BR for the charged channel to within 10… 
6 Citations

Figures from this paper

Constraints on New Physics from B Mesons

  • M. Blanke
  • Physics
    Proceedings of XXIX International Symposium on Lepton Photon Interactions at High Energies — PoS(LeptonPhoton2019)
  • 2019
These proceedings review the status of New Physics contributions to flavour violating $B$ decays. The anomalies in charged and neutral current $B$ decays related to lepton flavour universality

Quark flavor phenomenology of the QCD axion

Axion models with generation-dependent Peccei-Quinn charges can lead to flavor-changing neutral currents, thus motivating QCD axion searches at precision flavor experiments. We rigorously derive

Probing pre-BBN era with scale invariant FIMP

Detecting dark matter (DM) relic via freeze-in is difficult in laboratories due to smallness of the couplings involved. However, a non-standard cosmological history of the Universe, prior to Big Bang

Scale invariant FIMP miracle

We study the freeze-in production of vector dark matter (DM) in a classically scale invariant theory, where the Standard Model (SM) is augmented with an abelian U(1) X gauge symmetry that is

Dark scalars and heavy neutral leptons at DarkQuest

Abstract The proposed DarkQuest beam dump experiment, a modest upgrade to the existing SeaQuest/SpinQuest experiment, has great potential for uncovering new physics within a dark sector. We explore

The Dark Photon

The dark photon is a new gauge boson whose existence has been conjectured. It is dark because it arises from a symmetry of a hypothetical dark sector comprising particles completely neutral under the



Footprints of leptoquarks: from $ R_{K^{(*)}} $ to $ K \to \pi \nu \bar\nu $

Rare $$K \rightarrow \pi \nu \bar{\nu }$$K→πνν¯ decays, being dominated by short distance contributions within the standard model (SM), open a window for new physics (NP) searches at low energies.

Search for $K_L \!\to\! π^0 ν\overlineν$ and $K_L \!\to\! π^0 X^0$ Decays at the J-PARC KOTO Experiment

A search for the rare decay $K_L \!\to\! \pi^0 \nu \overline{\nu}$ was performed. With the data collected in 2015, corresponding to $2.2 \times 10^{19}$ protons on target, a single event sensitivity

K+→π+νν¯$$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ and KL→π0νν¯$$ {K}_L\to {\pi}^0\nu \overline{\nu} $$ in the Standard Model: status and perspectives

A bstractIn view of the recent start of the NA62 experiment at CERN that is expected to measure the K+→π+νν¯$$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ branching ratio with a precision of 10%, we

Can we reach the Zeptouniverse with rare K and Bs,d decays?

A bstractThe Large Hadron Collider (LHC) will directly probe distance scales as short as 10−19 m, corresponding to energy scales at the level of a few TeV. In order to reach even higher resolutions

B-physics anomalies: a guide to combined explanations

A bstractMotivated by additional experimental hints of Lepton Flavour Universality violation in B decays, both in charged- and in neutral-current processes, we analyse the ingredients necessary to

A prototype large-angle photon veto detector for the P326 experiment at CERN

The P326 experiment at the CERN SPS has been proposed with the purpose of measuring the branching ratio for the decay K+ rarrpi+nunu macrto within ~10%. The photon veto system must provide a

The beam and detector of the NA62 experiment at CERN

NA62 is a fixed-target experiment at the CERN SPS dedicated to measurements of rare kaon decays. Such measurements, like the branching fraction of the K+ → π+ ν ν̄ decay, have the potential to bring

Review of lepton universality tests in B decays

Several measurements of tree- and loop-level b-hadron decays performed in the recent years hint at a possible violation of Lepton Universality. This article presents an experimental and theoretical