Keyword: kaon
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WEPAB186 Studies for the K12 High-Intensity Kaon Beam at CERN detector, experiment, simulation, target 3049
 
  • G.L. D’Alessandro, D. Banerjee, J. Bernhard, M. Brugger, N. Doble, L. Gatignon, A. Gerbershagen, R. Marchevski, B. Rae, S. Schuchmann, F.W. Stummer, M.W.U. Van Dijk
    CERN, Meyrin, Switzerland
  • S.T. Boogert, S.M. Gibson, L.J. Nevay
    JAI, Egham, Surrey, United Kingdom
  
  The NA62 ex­per­i­ment is a fixed tar­get ex­per­i­ment lo­cated in the North Area of CERN and has as main goal the mea­sure­ment of the branch­ing ratio of the rare decay K±>pi+vv. The pri­mary pro­ton beam from the SPS ac­cel­er­a­tor in­ter­acts with the T10 beryl­lium tar­get and the gen­er­ated 75 GeV/c sec­ondary par­ti­cles, con­tain­ing about 6% of pos­i­tive kaons, are trans­ported by the K12 beam­line to the NA62 ex­per­i­ment. Stud­ies in this paper pre­sent de­tailed sim­u­la­tions of the K12 beam­line de­vel­oped in both FLUKA and BDSIM codes, which re­pro­duce the cur­rent con­fig­u­ra­tion of K12 for the NA62 ex­per­i­ment. The beam op­tics pa­ra­me­ters of K12 are stud­ied in BDSIM and com­pared to MADX op­tics and track­ing cal­cu­la­tions. The mod­els in FLUKA and BDSIM are used for beam stud­ies and muon pro­duc­tion at var­i­ous lo­ca­tions along the beam­line, and the pa­ra­me­ters ob­tained from sim­u­la­tions are bench­marked against data recorded by the ex­per­i­ment. The im­pact of the Cherenkov kaon tag­ging de­tec­tor (CEDAR) on the beam qual­ity is cal­cu­lated for two dif­fer­ent gas com­po­si­tions in view of a pos­si­ble up­grade of the de­tec­tor.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB186  
About • paper received ※ 17 May 2021       paper accepted ※ 01 July 2021       issue date ※ 27 August 2021  
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WEPAB187 The ENUBET Multi Momentum Secondary Beamline Design target, electron, proton, experiment 3053
 
  • E.G. Parozzi, N. Charitonidis
    CERN, Geneva, Switzerland
  • G. Brunetti, E.G. Parozzi, F. Terranova
    Universita Milano Bicocca, MILANO, Italy
  • A. Longhin, M. Pari, F. Pupilli
    INFN- Sez. di Padova, Padova, Italy
  • A. Longhin, M. Pari
    Univ. degli Studi di Padova, Padova, Italy
  • E.G. Parozzi, F. Terranova
    INFN MIB, MILANO, Italy
  
  The aim of neu­trino physics for the next decades is to de­tect ef­fects due to CP vi­o­la­tion, mass hi­er­ar­chy, and search for ef­fects be­yond the Stan­dard Model pre­dic­tions. Fu­ture ex­per­i­ments need pre­cise mea­sure­ments of the neu­trino in­ter­ac­tion cross-sec­tions at the ~GeV/c regime, cur­rently lim­ited by the exact knowl­edge of the ini­tial neu­trino flux on a ~10-20% un­cer­tainty level. The ENU­BET pro­ject is propos­ing a novel fa­cil­ity, ca­pa­ble of con­strain­ing the neu­trino flux nor­mal­iza­tion through the pre­cise mon­i­tor­ing of the Ke3 (K±>e+pi0nu) decay prod­ucts in an in­stru­mented decay tun­nel. ENU­BET can also mon­i­tor muons from the two body kaon and pion de­cays (nu flux) and mea­sure the neu­trino en­ergy with a 10% pre­ci­sion with­out re­ly­ing on the event re­con­struc­tion at the neu­trino de­tec­tor. We pre­sent here a novel de­sign based on a broad (4-8.5 GeV/c) mo­men­tum range sec­ondary beam­line, that widen the cross-sec­tion en­ergy range that can be ex­plored by ENU­BET. In this poster, we dis­cuss the tar­get op­ti­miza­tion stud­ies and we show the early re­sults on the new line’s op­tics and the lay­out de­sign. We dis­cuss the ex­pected per­for­mance of this line and the forth­com­ing ac­tiv­i­ties.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB187  
About • paper received ※ 13 May 2021       paper accepted ※ 29 July 2021       issue date ※ 14 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)