Antihydrogen detection in ALPHA

Richard Hydomako; Gorm Bruun Andresen; Mohammad Dehghani Ashkezari; Marcelo Baquero-Ruiz; William Bertsche; Eoin Butler; Paul David Bowe; Claudo Lenz Cesar; Steve Chapman; Michael Charlton; Joel Fajans; Tim Friesen; Makoto C. Fujiwara; David Russell Gill; Jeffrey Scott Hangst; Walter Newbold Hardy; Ryugo S. Hayano; Michael Edward Hayden; Andrew James Humphries; Svante Jonsell; Leonid Kurchaninov; Niels Madsen; Scott Menary; Paul Nolan; Konstantin Olchanski; Arthur Olin; Alexander Povilus; Petteri Pusa; Francis Robicheaux; Elazar Sarid; Daniel Miranda Silveira; Chukman So; James William Storey; Robert Ian Thompson; Dirk Peter van der Werf; Jonathan Syrkin Wurtele; Yasunori Yamazaki

doi:10.1007/s10751-011-0456-8

Antihydrogen detection in ALPHA

Richard Hydomako, Gorm Bruun Andresen, Mohammad Dehghani Ashkezari, Marcelo Baquero-Ruiz, William Bertsche, Eoin Butler, Paul David Bowe, Claudo Lenz Cesar, Steve Chapman, Michael Charlton, Joel Fajans, Tim Friesen, Makoto C. Fujiwara, David Russell Gill, Jeffrey Scott Hangst, Walter Newbold Hardy, Ryugo S. Hayano, Michael Edward Hayden, Andrew James Humphries, Svante JonsellLeonid Kurchaninov, Niels Madsen, Scott Menary, Paul Nolan, Konstantin Olchanski, Arthur Olin, Alexander Povilus, Petteri Pusa, Francis Robicheaux, Elazar Sarid, Daniel Miranda Silveira, Chukman So, James William Storey, Robert Ian Thompson, Dirk Peter van der Werf, Jonathan Syrkin Wurtele, Yasunori Yamazaki

Research output: Contribution to journal › Article › peer-review

Abstract

The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of silicon modules surrounding the antihydrogen trapping region of the ALPHA apparatus. Using this device, the antihydrogen annihilation position can be determined with a spatial resolution of better than 5 mm. Knowledge of the annihilation distribution was a critical component in the recently successful antihydrogen trapping effort. This paper will describe the methods used to reconstruct annihilation events in the ALPHA detector. Particular attention will be given to the description of the background rejection criteria.

Original language	English
Pages (from-to)	91-99
Number of pages	9
Journal	Hyperfine Interactions
Volume	212
Issue number	1-3
DOIs	https://doi.org/10.1007/s10751-011-0456-8
State	Published - 1 Dec 2012
Externally published	Yes

Keywords

Antihydrogen
Cosmic background rejection
Event reconstruction
Silicon vertex detector

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1007/s10751-011-0456-8

Cite this

Hydomako, R., Andresen, G. B., Ashkezari, M. D., Baquero-Ruiz, M., Bertsche, W., Butler, E., Bowe, P. D., Cesar, C. L., Chapman, S., Charlton, M., Fajans, J., Friesen, T., Fujiwara, M. C., Gill, D. R., Hangst, J. S., Hardy, W. N., Hayano, R. S., Hayden, M. E., Humphries, A. J., ... Yamazaki, Y. (2012). Antihydrogen detection in ALPHA. Hyperfine Interactions, 212(1-3), 91-99. https://doi.org/10.1007/s10751-011-0456-8

@article{eaf338e1984e4613a5c6ff28cff4bca4,

title = "Antihydrogen detection in ALPHA",

abstract = "The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of silicon modules surrounding the antihydrogen trapping region of the ALPHA apparatus. Using this device, the antihydrogen annihilation position can be determined with a spatial resolution of better than 5 mm. Knowledge of the annihilation distribution was a critical component in the recently successful antihydrogen trapping effort. This paper will describe the methods used to reconstruct annihilation events in the ALPHA detector. Particular attention will be given to the description of the background rejection criteria.",

keywords = "Antihydrogen, Cosmic background rejection, Event reconstruction, Silicon vertex detector",

author = "Richard Hydomako and Andresen, {Gorm Bruun} and Ashkezari, {Mohammad Dehghani} and Marcelo Baquero-Ruiz and William Bertsche and Eoin Butler and Bowe, {Paul David} and Cesar, {Claudo Lenz} and Steve Chapman and Michael Charlton and Joel Fajans and Tim Friesen and Fujiwara, {Makoto C.} and Gill, {David Russell} and Hangst, {Jeffrey Scott} and Hardy, {Walter Newbold} and Hayano, {Ryugo S.} and Hayden, {Michael Edward} and Humphries, {Andrew James} and Svante Jonsell and Leonid Kurchaninov and Niels Madsen and Scott Menary and Paul Nolan and Konstantin Olchanski and Arthur Olin and Alexander Povilus and Petteri Pusa and Francis Robicheaux and Elazar Sarid and Silveira, {Daniel Miranda} and Chukman So and Storey, {James William} and Thompson, {Robert Ian} and {van der Werf}, {Dirk Peter} and Wurtele, {Jonathan Syrkin} and Yasunori Yamazaki",

note = "Funding Information: Acknowledgements This work was supported by CNPq, FINEP/RENAFAE (Brazil); ISF (Israel); MEXT (Japan); FNU (Denmark); VR (Sweden); NSERC, NRC/TRIUMF, AIF, 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 = dec,

day = "1",

doi = "10.1007/s10751-011-0456-8",

language = "English",

volume = "212",

pages = "91--99",

journal = "Hyperfine Interactions",

issn = "0304-3843",

publisher = "Springer Netherlands",

number = "1-3",

}

Hydomako, R, Andresen, GB, Ashkezari, MD, Baquero-Ruiz, M, Bertsche, W, Butler, E, Bowe, PD, Cesar, CL, Chapman, S, Charlton, M, Fajans, J, Friesen, T, Fujiwara, MC, Gill, DR, Hangst, JS, Hardy, WN, Hayano, RS, Hayden, ME, Humphries, AJ, Jonsell, S, Kurchaninov, L, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, DM, So, C, Storey, JW, Thompson, RI, van der Werf, DP, Wurtele, JS & Yamazaki, Y 2012, 'Antihydrogen detection in ALPHA', Hyperfine Interactions, vol. 212, no. 1-3, pp. 91-99. https://doi.org/10.1007/s10751-011-0456-8

TY - JOUR

T1 - Antihydrogen detection in ALPHA

AU - Hydomako, Richard

AU - Andresen, Gorm Bruun

AU - Ashkezari, Mohammad Dehghani

AU - Baquero-Ruiz, Marcelo

AU - Bertsche, William

AU - Butler, Eoin

AU - Bowe, Paul David

AU - Cesar, Claudo Lenz

AU - Chapman, Steve

AU - Charlton, Michael

AU - Fajans, Joel

AU - Friesen, Tim

AU - Fujiwara, Makoto C.

AU - Gill, David Russell

AU - Hangst, Jeffrey Scott

AU - Hardy, Walter Newbold

AU - Hayano, Ryugo S.

AU - Hayden, Michael Edward

AU - Humphries, Andrew James

AU - Jonsell, Svante

AU - Kurchaninov, Leonid

AU - Madsen, Niels

AU - Menary, Scott

AU - Nolan, Paul

AU - Olchanski, Konstantin

AU - Olin, Arthur

AU - Povilus, Alexander

AU - Pusa, Petteri

AU - Robicheaux, Francis

AU - Sarid, Elazar

AU - Silveira, Daniel Miranda

AU - So, Chukman

AU - Storey, James William

AU - Thompson, Robert Ian

AU - van der Werf, Dirk Peter

AU - Wurtele, Jonathan Syrkin

AU - Yamazaki, Yasunori

N1 - Funding Information: Acknowledgements This work was supported by CNPq, FINEP/RENAFAE (Brazil); ISF (Israel); MEXT (Japan); FNU (Denmark); VR (Sweden); NSERC, NRC/TRIUMF, AIF, 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.

PY - 2012/12/1

Y1 - 2012/12/1

N2 - The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of silicon modules surrounding the antihydrogen trapping region of the ALPHA apparatus. Using this device, the antihydrogen annihilation position can be determined with a spatial resolution of better than 5 mm. Knowledge of the annihilation distribution was a critical component in the recently successful antihydrogen trapping effort. This paper will describe the methods used to reconstruct annihilation events in the ALPHA detector. Particular attention will be given to the description of the background rejection criteria.

AB - The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of silicon modules surrounding the antihydrogen trapping region of the ALPHA apparatus. Using this device, the antihydrogen annihilation position can be determined with a spatial resolution of better than 5 mm. Knowledge of the annihilation distribution was a critical component in the recently successful antihydrogen trapping effort. This paper will describe the methods used to reconstruct annihilation events in the ALPHA detector. Particular attention will be given to the description of the background rejection criteria.

KW - Antihydrogen

KW - Cosmic background rejection

KW - Event reconstruction

KW - Silicon vertex detector

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U2 - 10.1007/s10751-011-0456-8

DO - 10.1007/s10751-011-0456-8

M3 - Article

AN - SCOPUS:84869880990

SN - 0304-3843

VL - 212

SP - 91

EP - 99

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1-3

ER -

Antihydrogen detection in ALPHA

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Keywords

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