@article{2f933c877885459185a920f228e96369,
title = "Antihydrogen annihilation reconstruction with the ALPHA silicon detector",
abstract = "The ALPHA experiment has succeeded in trapping antihydrogen, a major milestone on the road to spectroscopic comparisons of antihydrogen with hydrogen. An annihilation vertex detector, which determines the time and position of antiproton annihilations, has been central to this achievement. This detector, an array of double-sided silicon microstrip detector modules arranged in three concentric cylindrical tiers, is sensitive to the passage of charged particles resulting from antiproton annihilation. This article describes the method used to reconstruct the annihilation location and to distinguish the annihilation signal from the cosmic ray background. Recent experimental results using this detector are outlined.",
keywords = "Antihydrogen, Antimatter, Cosmic ray background suppression, Event reconstruction, Vertexing detector",
author = "Andresen, {G. B.} and Ashkezari, {M. D.} and W. Bertsche and Bowe, {P. D.} and E. Butler and Cesar, {C. L.} and S. Chapman and M. Charlton and A. Deller and S. Eriksson and J. Fajans and T. Friesen and Fujiwara, {M. C.} and Gill, {D. R.} and A. Gutierrez and Hangst, {J. S.} and Hardy, {W. N.} and Hayden, {M. E.} and Hayano, {R. S.} and Humphries, {A. J.} and R. Hydomako and S. Jonsell and Jorgensen, {L. V.} and L. Kurchaninov and N. Madsen and S. Menary and P. Nolan and K. Olchanski and A. Olin and A. Povilus and P. Pusa and E. Sarid and {Seif El Nasr}, S. and Silveira, {D. M.} and C. So and Storey, {J. W.} and Thompson, {R. I.} and {Van Der Werf}, {D. P.} and Y. Yamazaki",
note = "Funding Information: This work was supported by CNPq, FINEP/RENAFAE (Brazil) ; ISF (Israel) ; MEXT (Japan) ; FNU (Denmark) ; VR (Sweden) ; NSERC, NRC/TRIUMF, AIF/AITF, FQRNT , and the Killam Trust (Canada) ; the DOE and the NSF (USA) ; and EPSRC , the Royal Society and the Leverhulme Trust (UK) . We would like to thank D. Seddon, J. Thornhill, and D. Wells (University of Liverpool) for their work on the construction of the vertex detector.",
year = "2012",
month = aug,
day = "21",
doi = "10.1016/j.nima.2012.04.082",
language = "English",
volume = "684",
pages = "73--81",
journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",
}