کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1850912 | 1528810 | 2015 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Muon-induced background to proton decay in the p→K+νp→K+ν decay channel with large underground liquid argon TPC detectors Muon-induced background to proton decay in the p→K+νp→K+ν decay channel with large underground liquid argon TPC detectors](/preview/png/1850912.png)
Large liquid argon TPC detector programs such as LBNE and LAGUNA-LBNO will be able to make measurements of the proton lifetime which will outperform Cherenkov detectors in the proton decay channel p→K+νp→K+ν. At the large depths which are proposed for such experiments, a non-negligible source of isolated charged kaons may be produced in the showers of cosmogenic muons. We present an estimate of the cosmogenic muon background to proton decay in the p→K+νp→K+ν channel. The simulation of muon transport to a depth of 4 km w.e. is performed in the MUSIC framework and the subsequent propagation of muons and secondary particles in the vicinity of a cylindrical 20 kt LAr target is performed using Geant4. An exposure time of 100 years is considered, with a rate of <0.0012 events/kt/year at 90% CL predicted from our simulations.
Journal: Physics Letters B - Volume 746, 30 June 2015, Pages 44–47