1,721,055 research outputs found
Results and perspectives from the NA62 experiment at CERN
No full textThe NA62 experiment at the CERN SPS collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A preliminary result of a new measurement of the electromagnetic transition form factor slope of the neutral pion in the time-like momentum region from 1.05 million fully reconstructed π0 Dalitz decays is presented in the first part of this report. In the second part, prospects and current status of a new measurement of B(K+ → π +νν) at the NA62 experiment are summarised. The experiment took data in physics runs in 2014 and 2015 reaching the designed beam intensity
NA62 Status Report to the CERN SPSC: Summary of the 2010 Activities and Plans for 2011
No full textThe document reports the progress of experiment NA62 to study the rare decay at the CERN SPS. The status of the analysis of the data collected by the Collaboration in 2007-2008 to study Lepton Universality in Kaon decays is also given. The implications of the absence of SPS beam in 2012, as currenntly foreseen, are mentioned and the plan to mitigate for this lack of beam is presented. The overall construction schedule is reviewed and the status of the sub-detectors is presente
2011 NA62 Status Report to the CERN SPSC
No full textNA62 will study the rare decay at the CERN SPS. We report here progress on the construction and the preparations for the experiment since November 2010. The implications of the postponed LHC shutdown are presented. We report the final (published) result on the 40 % of the data collected 2007-2008 to study Lepton Universality and the work towards the completion of the full sample analysis
2014 NA62 Status report to the CERN SPSC
No full textNA62 aims to study the rare decay at the CERN SPS. In this document we report the status of the detector construction and the general progress of the experiment since April 2013. The schedule for the completion of the construction and the preparations in view of the physics data taking in October 2014 are detailed. During the past year many major elements have been delivered, including the RICH vessel and the TDCpix ASIC. The production of the LKR CREAM modules has started and the manufacturing of the Straw chambers and of the LAV stations have continued steadily. All the Straw frontend electronics has been procured
A search for the decay
Get PDFA search for the decay, forbidden within the Standard
Model by either lepton number or lepton flavour conservation depending on the
flavour of the emitted neutrino, has been performed using the dataset collected
by the NA62 experiment at CERN in 2016--2018. An upper limit of is obtained for the decay branching fraction at 90% CL, improving by
a factor of 250 over the previous search.Comment: Final version, published in Physics Letters
2025 NA62 Status Report to the CERN SPSC
No full textThe status of the NA62 experiment is reported. The 2024 data taking, the hardware and software activities, and the plans for 2025 are discussed. The status of the analysis is presented, together with the highlights from the studies of rare and forbidden decays, as well as of the beam-dump data
2017 NA62 status report to the CERN SPSC
No full textThe status of the analysis of the data collected in 2016 by the NA62 experiment is reported. About decays have been taken to study the decay. Preliminary results from the analysis based on about 5% of the 2016 data are summarised in this document. Analysis on exotic physics searches and rare and forbidden decays are also discussed
2013 NA62 Status Report to the CERN SPSC
No full textNA62 aims to study the rare decay at the CERN SPS. In this document we report the status of the detector construction and the general progress of the experiment since April 2012. A report on the achievements obtained during the 2012 technical run is given. The schedule for the completion of the construction and the preparations in view of the physics data taking in October 2014 are detailed. \end{abstract
Search for dark photon decays to at NA62
Get PDFThe NA62 experiment at CERN, designed to study the ultra-rare decay , has also collected data in beam-dump mode. In this
configuration, dark photons may be produced by protons dumped on an absorber
and reach a decay volume beginning 80 m downstream. A search for dark photons
decaying in flight to pairs is reported, based on a sample of protons on dump collected in 2021. No evidence for a dark
photon signal is observed. A region of the parameter space is excluded at 90%
CL, improving on previous experimental limits for dark photon masses between
215 and 550 MeV.Comment: 23 pages, 16 figures, final version, accepted for publication in JHE
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