@article{Aaij:2024:02/P02010,
author = {Aaij, R and Abdelmotteleb, ASW and Beteta, CA and Abudinén, F and Ackernley, T and Adeva, B and Adinolfi, M and Adlarson, P and Agapopoulou, C and Aidala, CA and Ajaltouni, Z and Akar, S and Akiba, K and Albicocco, P and Albrecht, J and Alessio, F and Alexander, M and Albero, AA and Aliouche, Z and Cartelle, PA and Amalric, R and Amato, S and Amey, JL and Amhis, Y and An, L and Anderlini, L and Andersson, M and Andreianov, A and Andreola, P and Andreotti, M and Andreou, D and Anelli, AA and Ao, D and Archilli, F and Argenton, M and Cuendis, SA and Artamonov, A and Artuso, M and Aslanides, E and Atzeni, M and Audurier, B and Bacher, D and Perea, IB and Bachmann, S and Bachmayer, M and Back, JJ and Bailly-Reyre, A and Rodriguez, PB and Balagura, V and Baldini, W and De, Souza Leite JB and Barbetti, M and Barbosa, IR and Barlow, RJ and Barsuk, S and Barter, W and Bartolini, M and Baryshnikov, F and Basels, JM and Bassi, G and Batsukh, B and Battig, A and Bay, A and Beck, A and Becker, M a},
doi = {02/P02010},
journal = {Journal of Instrumentation},
title = {Helium identification with LHCb},
url = {http://dx.doi.org/10.1088/1748-0221/19/02/P02010},
volume = {19},
year = {2024}
}

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TY  - JOUR
AB  - The identification of helium nuclei at LHCb is achieved using a method based on measurements of ionisation losses in the silicon sensors and timing measurements in the Outer Tracker drift tubes. The background from photon conversions is reduced using the RICH detectors and an isolation requirement. The method is developed using pp collision data at √s = 13 TeV recorded by the LHCb experiment in the years 2016 to 2018, corresponding to an integrated luminosity of 5.5 fb−1. A total of around 105 helium and antihelium candidates are identified with negligible background contamination. The helium identification efficiency is estimated to be approximately 50% with a corresponding background rejection rate of up to O(1012). These results demonstrate the feasibility of a rich programme of measurements of QCD and astrophysics interest involving light nuclei.
AU  - Aaij,R
AU  - Abdelmotteleb,ASW
AU  - Beteta,CA
AU  - Abudinén,F
AU  - Ackernley,T
AU  - Adeva,B
AU  - Adinolfi,M
AU  - Adlarson,P
AU  - Agapopoulou,C
AU  - Aidala,CA
AU  - Ajaltouni,Z
AU  - Akar,S
AU  - Akiba,K
AU  - Albicocco,P
AU  - Albrecht,J
AU  - Alessio,F
AU  - Alexander,M
AU  - Albero,AA
AU  - Aliouche,Z
AU  - Cartelle,PA
AU  - Amalric,R
AU  - Amato,S
AU  - Amey,JL
AU  - Amhis,Y
AU  - An,L
AU  - Anderlini,L
AU  - Andersson,M
AU  - Andreianov,A
AU  - Andreola,P
AU  - Andreotti,M
AU  - Andreou,D
AU  - Anelli,AA
AU  - Ao,D
AU  - Archilli,F
AU  - Argenton,M
AU  - Cuendis,SA
AU  - Artamonov,A
AU  - Artuso,M
AU  - Aslanides,E
AU  - Atzeni,M
AU  - Audurier,B
AU  - Bacher,D
AU  - Perea,IB
AU  - Bachmann,S
AU  - Bachmayer,M
AU  - Back,JJ
AU  - Bailly-Reyre,A
AU  - Rodriguez,PB
AU  - Balagura,V
AU  - Baldini,W
AU  - De,Souza Leite JB
AU  - Barbetti,M
AU  - Barbosa,IR
AU  - Barlow,RJ
AU  - Barsuk,S
AU  - Barter,W
AU  - Bartolini,M
AU  - Baryshnikov,F
AU  - Basels,JM
AU  - Bassi,G
AU  - Batsukh,B
AU  - Battig,A
AU  - Bay,A
AU  - Beck,A
AU  - Becker,M
AU  - Bedeschi,F
AU  - Bediaga,IB
AU  - Beiter,A
AU  - Belin,S
AU  - Bellee,V
AU  - Belous,K
AU  - Belov,I
AU  - Belyaev,I
AU  - Benane,G
AU  - Bencivenni,G
AU  - Ben-Haim,E
AU  - Berezhnoy,A
AU  - Bernet,R
AU  - Andres,SB
AU  - Bernstein,HC
AU  - Bertella,C
AU  - Bertolin,A
AU  - Betancourt,C
AU  - Betti,F
AU  - Bex,J
AU  - Bezshyiko,I
AU  - Bhom,J
AU  - Bieker,MS
AU  - Biesuz,NV
AU  - Billoir,P
AU  - Biolchini,A
AU  - Birch,M
AU  - Bishop,FCR
AU  - Bitadze,A
AU  - Bizzeti,A
AU  - Blago,MP
AU  - Blake,T
AU  - Blanc,F
AU  - Blank,JE
AU  - Blusk,S
DO  - 02/P02010
PY  - 2024///
TI  - Helium identification with LHCb
T2  - Journal of Instrumentation
UR  - http://dx.doi.org/10.1088/1748-0221/19/02/P02010
VL  - 19
ER  - 

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