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April 14, 2022
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Track reconstruction and matching between emulsion and silicon pixel detectors for the SHiP-charm experiment

Publicated to:Journal of Instrumentation. 17 (3): - 2022-03-01 17(3), DOI: 10.1088/1748-0221/17/03/P03013

Authors: Ahdida C; Akmete A; Albanese R; Alt J; Alexandrov A; Anokhina A; Aoki S; Arduini G; Atkin E; Azorskiy N; Back JJ; Bagulya A; Baaltasar Dos Santos F; Baranov A; Bardou F; Barker GJ; Battistin M; Bauche J; Bay A; Bayliss V; Bencivenni G; Berdnikov AY; Berdnikov YA; Bertani M; Betancourt C; Bezshyiko I; Bezshyyko O; Bick D; Bieschke S; Blanco A; Boehm J; Bogomilov M; Boiarska I; Bondarenko K; Bonivento WM; Borburgh J; Boyarsky A; Brenner R; Breton D; Brignoli A; 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 KY; Chumakov A; Ciambrone P; Cicero V; Climescu M; Conaboy A; Congedo L; Cornelis K; Cristinziani M; Crupano A; Dallavalle GM; 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; Di Crescenzo A; Di Giulio L; Di Marco N; Dib C; Dijkstra H; Dmitrenko V; Dougherty LA; 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

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Abstract

In July 2018 an optimization run for the proposed charm cross section measurement for SHiP was performed at the CERN SPS. A heavy, moving target instrumented with nuclear emulsion films followed by a silicon pixel tracker was installed in front of the Goliath magnet at the H4 proton beam-line. Behind the magnet, scintillating-fibre, drift-tube and RPC detectors were placed. The purpose of this run was to validate the measurement's feasibility, to develop the required analysis tools and fine-tune the detector layout. In this paper, we present the track reconstruction in the pixel tracker and the track matching with the moving emulsion detector. The pixel detector performed as expected and it is shown that, after proper alignment, a vertex matching rate of 87% is achieved.

Keywords

Detector alignment and calibration methods (lasers, sources, particle-beams)Particle tracking detectors (solid-state detectors)Pattern recognition, cluster finding, calibration and fitting methods

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal of Instrumentation due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Instrumentation. Notably, the journal is positioned en el Cuartil Q4 for the agency WoS (JCR) in the category Instruments & Instrumentation.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.25, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-06:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 5.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 6 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.25.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).