Observation of the rare decay KS→π0e+e−

Batley, J. R.; Kalmus, G.; Lazzeroni, C.; Munday, D.J.; Patel, M.; Slater, M. W.; Wotton, S. A.; Arcidiacono, R.; Bocquet, G.; Ceccucci, A.; Cundy, D.; Doble, N.; Falaleev, V.; Gatignon, L.; Gonidec, A.; Grafström, P.; Kubischta, W.; Marchetto, F.; Mikulec, I.; Norton, A.; Panzer-Steindel, B.; Rubin, P.; Wahl, H.; Goudzovski, E.; Gurev, D.; Hristov, P.; Kekelidze, V.; Litov, L.; Madigozhin, D.; Molokanova, N.; Potrebenikov, Yu.; Stoynev, S.; Zinchenko, A.; Monnier, E.; Swallow, E. C.; Winston, R.; Sacco, R.; Walker, A.; Baldini, W.; Dalpiaz, P.; Frabetti, P. L.; Gianoli, A.; Martini, M.; Petrucci, F.; Scarpa, M.; Savrié, M.; Bizzeti, A.; Calvetti, M.; Collazuol, G.; Graziani, G.; Iacopini, E.; Lenti, M.; Martelli, F.; Ruggiero, G.; Veltri, M.; Behler, M.; Eppard, K.; Eppard, M.; Hirstius, A.; Kleinknecht, K.; Koch, U.; Masetti, L.; Marouelli, P.; Moosbrugger, U.; Morales, C. Morales; Peters, A.; Wanke, R.; Winhart, A.; Dabrowski, A.; Martin, T. Fonseca; Lopez, S. Goy; Velasco, M.; Anzivino, G.; Cenci, P.; Imbergamo, E.; Lamanna, G.; Lubrano, P.; Michetti, A.; Nappi, A.; Pepé, M.; Petrucci, M. C.; Piccini, M.; Valdata, M.; Cerri, C.; Costantini, F.; Fantechi, R.; Fiorini, L.; Giudici, S.; Mannelli, I.; Pierazzini, G.; Sozzi, M.; Cheshkov, C.; Chèze, J.B.; Beer, M. De; Debu, P.; Gouge, G.; Marel, G.; Mazzucato, E.; Peyaud, B.; Vallage, B.; Holder, M.; Maier, A.; Ziolkowski, M.; Biino, C.; Cartiglia, N.; Clemencic, M.; Menichetti, E.; Pastrone, N.; Wiślicki, W.; Dibon, H.; Jeitler, M.; Markytan, M.; Neuhofer, G.; Widhalm, L.

doi:10.1016/j.physletb.2003.10.001

Cited by 58 publications

(32 citation statements)

References 16 publications

(12 reference statements)

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“…In this case, NLO momenta dependent terms in the form factor cannot be determined from a fit to data due to the smallness of the non-analytic contributions [45]. The result one gets using the NA48/1 results [46] 23 . The corresponding decay into muons has also been measured giving compatible results [47].…”

Section: Chpt Progress On Non-leptonic and Radiative Kaon Decays Joaqmentioning

confidence: 99%

ChPT Progress on Non-Leptonic and Radiative Kaon Decays

Prades¹

2008

Proceedings of Kaon International Conference — PoS(KAON)

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Section: Chpt Progress On Non-leptonic and Radiative Kaon Decays Joaqmentioning

confidence: 99%

ChPT Progress on Non-Leptonic and Radiative Kaon Decays

Prades¹

2008

Proceedings of Kaon International Conference — PoS(KAON)

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“…These precision measurements give important information on the low-energy structure of the weak interaction and provide important tests of ChPT. Though expected to be difficult, the first observations of the decays K S → π 0 e + e − (7 events) [6] and K S → π 0 µ + µ − (6 events) [7] are reported by the NA48/1 experiment at the CERN SPS accelerator. These K S decays are important in isolating the contribution of direct CP violation in the decay K L → π 0 + − .…”

Section: Introductionmentioning

confidence: 99%

Prospects for a lattice computation of rare kaon decay amplitudes:K→πℓ+ℓ−decays

et al. 2015

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The rare kaon decays K → π + − and K → πνν are flavor changing neutral current (FCNC) processes and hence promising channels with which to probe the limits of the standard model and to look for signs of new physics. In this paper we demonstrate the feasibility of lattice calculations of K → π + − decay amplitudes for which long-distance contributions are very significant. We show that the dominant finite-volume corrections (those decreasing as powers of the volume) are negligibly small and that, in the four-flavor theory, no new ultraviolet divergences appear as the electromagnetic current J and the effective weak Hamiltonian H W approach each other. In addition, we demonstrate that one can remove the unphysical terms which grow exponentially with the range of the integration over the time separation between J and H W . We will now proceed to exploratory numerical studies with the aim of motivating further experimental measurements of these decays.Our work extends the earlier study by Isidori, Turchetti and Martinelli [1] which focussed largely on the renormalization of ultraviolet divergences. In a companion paper [2] we discuss the evaluation of the long-distance contributions to K → πνν decays; these contributions are expected to be at the level of a few percent for K + decays.

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“…of K L → π 0 γγ and an order ε CP-violating piece that can be determined from measurements of K S → π 0 e + e − [15] and K S → π 0 µ + µ − [16], modulo a sign. The sign is important since this contribution can interfere with the short-distance direct CP-violating one.…”

Section: Pos(kaon13)001mentioning

confidence: 99%

Kaon Physics from 30,000 Feet and Other Perspectives

Littenberg¹

2013

Proceedings of 2013 Kaon Physics International Conference — PoS(KAON13)

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Observation of the rare decay KS→π0e+e−

Cited by 58 publications

References 16 publications

ChPT Progress on Non-Leptonic and Radiative Kaon Decays

ChPT Progress on Non-Leptonic and Radiative Kaon Decays

Prospects for a lattice computation of rare kaon decay amplitudes:K→πℓ+ℓ−decays

Kaon Physics from 30,000 Feet and Other Perspectives

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