Measurement of the muon flux from 400 GeV/c protons interacting in a thick molybdenum/tungsten target

Author:

Ahdida C.,Akmete A.,Albanese R.,Alexandrov A.,Anokhina A.,Aoki S.,Arduini G.,Atkin E.,Azorskiy N.,Back J. J.,Bagulya A.,Santos F. Baaltasar Dos,Baranov A.,Bardou F.,Barker G. J.,Battistin M.,Bauche J.,Bay A.,Bayliss V.,Bencivenni G.,Berdnikov A. Y.,Berdnikov Y. A.,Bertani M.,Betancourt C.,Bezshyiko I.,Bezshyyko O.,Bick D.,Bieschke S.,Blanco A.,Boehm J.,Bogomilov M.,Boiarska I.,Bondarenko K.,Bonivento W. M.,Borburgh J.,Boyarsky A.,Brenner R.,Breton D.,Büscher V.,Buonaura A.,Buontempo S.,Cadeddu S.,Calcaterra A.,Calviani M.,Campanelli M.,Casolino M.,Charitonidis N.,Chau P.,Chauveau J.,Chepurnov A.,Chernyavskiy M.,Choi K.-Y.,Chumakov A.,Ciambrone P.,Cicero V.,Congedo L.,Cornelis K.,Cristinziani M.,Crupano A.,Dallavalle G. M.,Datwyler A.,D’Ambrosio N.,D’Appollonio G.,de Asmundis R.,De Carvalho Saraiva J.,De Lellis G.,de Magistris M.,De Roeck A.,De Serio M.,De Simone D.,Dedenko L.,Dergachev P.,Crescenzo A. Di,Giulio L. Di,Marco N. Di,Dib C.,Dijkstra H.,Dmitrenko V.,Dmitrievskiy S.,Dougherty L. A.,Dolmatov A.,Domenici D.,Donskov S.,Drohan V.,Dubreuil A.,Durhan O.,Ehlert M.,Elikkaya E.,Enik T.,Etenko A.,Fabbri F.,Fedin O.,Fedotovs F.,Felici G.,Ferrillo M.,Ferro-Luzzi M.,Filippov K.,Fini R. A.,Fonte P.,Franco C.,Fraser M.,Fresa R.,Froeschl R.,Fukuda T.,Galati G.,Gall J.,Gatignon L.,Gavrilov G.,Gentile V.,Goddard B.,Golinka-Bezshyyko L.,Golovatiuk A.,Golubkov D.,Golutvin A.,Gorbounov P.,Gorbunov D.,Gorbunov S.,Gorkavenko V.,Gorshenkov M.,Grachev V.,Grandchamp A. L.,Graverini E.,Grenard J.-L.,Grenier D.,Grichine V.,Gruzinskii N.,Guler A. M.,Guz Yu.,Haefeli G. J.,Hagner C.,Hakobyan H.,Harris I. W.,Herwijnen E. van,Hessler C.,Hollnagel A.,Hosseini B.,Hushchyn M.,Iaselli G.,Iuliano A.,Jacobsson R.,Joković D.,Jonker M.,Kadenko I.,Kain V.,Kaiser B.,Kamiscioglu C.,Karpenkov D.,Kershaw K.,Khabibullin M.,Khalikov E.,Khaustov G.,Khoriauli G.,Khotyantsev A.,Kim Y. G.,Kim V.,Kitagawa N.,Ko J.-W.,Kodama K.,Kolesnikov A.,Kolev D. I.,Kolosov V.,Komatsu M.,Kono A.,Konovalova N.,Kormannshaus S.,Korol I.,Korol’ko I.,Korzenev A.,Kostyukhin V.,Platia E. Koukovini,Kovalenko S.,Krasilnikova I.,Kudenko Y.,Kurbatov E.,Kurbatov P.,Kurochka V.,Kuznetsova E.,Lacker H. M.,Lamont M.,Lanfranchi G.,Lantwin O.,Lauria A.,Lee K. S.,Lee K. Y.,Lévy J.-M.,Loschiavo V. P.,Lopes L.,Sola E. Lopez,Lyubovitskij V.,Maalmi J.,Magnan A.,Maleev V.,Malinin A.,Manabe Y.,Managadze A. K.,Manfredi M.,Marsh S.,Marshall A. M.,Mefodev A.,Mermod P.,Miano A.,Mikado S.,Mikhaylov Yu.,Milstead D. A.,Mineev O.,Montanari A.,Montesi M. C.,Morishima K.,Movchan S.,Muttoni Y.,Naganawa N.,Nakamura M.,Nakano T.,Nasybulin S.,Ninin P.,Nishio A.,Novikov A.,Obinyakov B.,Ogawa S.,Okateva N.,Opitz B.,Osborne J.,Ovchynnikov M.,Owtscharenko N.,Owen P. H.,Pacholek P.,Paoloni A.,Park B. D.,Pastore A.,Patel M.,Pereyma D.,Perillo-Marcone A.,Petkov G. L.,Petridis K.,Petrov A.,Podgrudkov D.,Poliakov V.,Polukhina N.,Prieto J. Prieto,Prokudin M.,Prota A.,Quercia A.,Rademakers A.,Rakai A.,Ratnikov F.,Rawlings T.,Redi F.,Ricciardi S.,Rinaldesi M.,Rodin Volodymyr,Rodin Viktor,Robbe P.,Cavalcante A. B. Rodrigues,Roganova T.,Rokujo H.,Rosa G.,Rovelli T.,Ruchayskiy O.,Ruf T.,Samoylenko V.,Samsonov V.,Galan F. Sanchez,Diaz P. Santos,Ull A. Sanz,Saputi A.,Sato O.,Savchenko E. S.,Schliwinski J. S.,Schmidt-Parzefall W.,Serra N.,Sgobba S.,Shadura O.,Shakin A.,Shaposhnikov M.,Shatalov P.,Shchedrina T.,Shchutska L.,Shevchenko V.,Shibuya H.,Shihora L.,Shirobokov S.,Shustov A.,Silverstein S. B.,Simone S.,Simoniello R.,Skorokhvatov M.,Smirnov S.,Sohn J. Y.,Sokolenko A.,Solodko E.,Starkov N.,Stoel L.,Stramaglia M. E.,Sukhonos D.,Suzuki Y.,Takahashi S.,Tastet J. L.,Teterin P.,Naing S. Than,Timiryasov I.,Tioukov V.,Tommasini D.,Torii M.,Tosi N.,Treille D.,Tsenov R.,Ulin S.,Ursov E.,Ustyuzhanin A.,Uteshev Z.,Vankova-Kirilova G.,Vannucci F.,Venturi V.,Vilchinski S.,Vincke Heinz,Vincke Helmut,Visone C.,Vlasik K.,Volkov A.,Voronkov R.,Waasen S. van,Wanke R.,Wertelaers P.,Williams O.,Woo J.-K.,Wurm M.,Xella S.,Yilmaz D.,Yilmazer A. U.,Yoon C. S.,Zaytsev Yu.,Zimmerman J.

Abstract

AbstractThe SHiP experiment is proposed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. About $$10^{11}$$1011 muons per spill will be produced in the dump. To design the experiment such that the muon-induced background is minimized, a precise knowledge of the muon spectrum is required. To validate the muon flux generated by our Pythia and GEANT4 based Monte Carlo simulation (FairShip), we have measured the muon flux emanating from a SHiP-like target at the SPS. This target, consisting of 13 interaction lengths of slabs of molybdenum and tungsten, followed by a 2.4 m iron hadron absorber was placed in the H4 400 GeV/c proton beam line. To identify muons and to measure the momentum spectrum, a spectrometer instrumented with drift tubes and a muon tagger were used. During a 3-week period a dataset for analysis corresponding to $$(3.27\pm 0.07)~\times ~10^{11}$$(3.27±0.07)×1011 protons on target was recorded. This amounts to approximatively 1% of a SHiP spill.

Funder

Türkiye Atom Enerjisi Kurumu

National Research Foundation of Korea

Russian Foundation for Basic Research

Publisher

Springer Science and Business Media LLC

Subject

Physics and Astronomy (miscellaneous),Engineering (miscellaneous)

Reference15 articles.

1. The SHiP Collaboration, A facility to Search for Hidden Particles (SHIP) at the CERN SPS. 2015. arXiv:1504.04956v1

2. The SHiP Collaboration, The active muon shield in the SHiP experiment. JINST 12(05), P05011 (2017)

3. The SHiP Collaboration, Muon flux measurements for SHiP at H4. CERN-SPSC-2017-020 (2017)

4. R. Zimmermann, J. Ebert, C. Hagner, B. Koppitz, V. Savelev, W. Schmidt-Parzefall, J. Sewing, Y. Zaitsev, The precision tracker of the OPERA detector. Nucl. Instrum. Meth. A 555, 435–450 (2005)

5. M. Rosenthal et al., Magnetic field measurements of the GOLIATH magnet in EHN1. CERN-ACC-NOTE-2018-0028 (2018)

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