descriptionPublicationkeyboard_double_arrow_right Article , Research , Preprint 01 Feb 2024Embargo end date: 01 Jan 2023Publisher:IOP PublishingJournal:Journal of Instrumentation, volume 19, page P02010 (eissn: 1748-0221,

Authors: LHCb Collaboration; Aaij, Roel; Abdelmotteleb, Ahmed Sameh Wagih; Abellan Beteta, Carlos; Abudinén, Fernando Jesus; Ackernley, Thomas; Adeva, Bernardo; +193 Authors

LHCb Collaboration; Aaij, Roel; Abdelmotteleb, Ahmed Sameh Wagih; Abellan Beteta, Carlos; Abudinén, Fernando Jesus; Ackernley, Thomas; Adeva, Bernardo; Adinolfi, Marco; Adlarson, Patrik Harri; Agapopoulou, Christina; Aidala, Christine Angela; Ajaltouni, Ziad; Akar, Simon; Akiba, Kazuyoshi; Albicocco, Pietro; Albrecht, Johannes; Alessio, Federico; Alexander, Michael; Alfonso Albero, Alejandro; Aliouche, Zakariya; Alvarez Cartelle, Paula; Amalric, Renaud; Amato, Sandra; Amey, Jake Lewis; Amhis, Yasmine; An, Liupan; Anderlini, Lucio; Andersson, Martin; Andreianov, Aleksei; Andreola, Pasquale; Andreotti, Mirco; Andreou, Dimitra; Anelli, Alessia; Ao, Dong; Archilli, Flavio; Argenton, Matteo; Arguedas Cuendis, Sergio; Artamonov, Alexander; Artuso, Marina; Aslanides, Elie; Atzeni, Michele; Audurier, Benjamin; Bacher, David; Bachiller Perea, Irene; Bachmann, Sebastian; Bachmayer, Marie; Back, John; Bailly-reyre, A.; Baladron Rodriguez, Pablo; Balagura, Vladislav; Baldini, Wander; Baptista de Souza Leite, Juan; Barbetti, Matteo; Barbosa, Ivanildo Rui; Barlow, Roger; Barsuk, Sergey; Barter, William; Bartolini, Matteo; Bartz, Justin; Baryshnikov, Fedor; Basels, Jan-Marc; Bassi, Giovanni; Batsukh, Baasansuren; Battig, Alexander; Bay, Aurelio; Beck, Anja; Becker, Maik; Bedeschi, Franco; Bediaga, Ignacio; Beiter, Andrew; Belin, Samuel; Bellee, Violaine; Belous, Konstantin; Belov, Ilia; Belyaev, Ivan; Benane, Gaya; Bencivenni, Giovanni; Ben-Haim, Eli; Berezhnoy, Alexander; Bernet, Roland; Bernet Andres, Sergi; Bernstein, H. C.; Bertella, Claudia; Bertolin, Alessandro; Betancourt, Christopher; Betti, Federico; Bex, Josh; Bezshyiko, Iaroslava; Bezshyiko, Ia.; Bhom, Jihyun; Bieker, Martin Stefan; Biesuz, Nicolo Vladi; Billoir, Pierre; Biolchini, Alice; Birch, Matthew; Bishop, Fionn Caitlin Ros; Bitadze, Alexander; Bizzeti, Andrea; Blago, Michele Piero; Blake, Thomas; Blanc, Frederic; Blank, Jonah Evan; Blusk, Steven; Bobulska, Dana; Bocharnikov, Vladimir; Boelhauve, Julian Alexander; Boente Garcia, Oscar; Boettcher, Thomas; Bohare, Abhishek; Boldyrev, Alexey; Bolognani, Carolina; Bolzonella, Riccardo; Bondar, Nikolay; Borgato, Federica; Borghi, Silvia; Borsato, Martino; Borsuk, Jozef Tomasz; Bouchiba, Sonia Amina; Bowcock, Themistocles; Boyer, Alexandre; Bozzi, Concezio; Bradley, Matthew John; Braun, S.; Brea Rodriguez, Alexandre; Breer, Nils; Brodzicka, Jolanta; Brossa Gonzalo, Arnau; Brown, James David; Brundu, Davide; Buonaura, Annarita; Buonincontri, Laura; Burke, Aodhan Tomas; Burr, Christopher; Bursche, Albert; Butkevich, Anatoly; Butter, Jordy Sebastiaan; Buytaert, Jan; Byczynski, Wiktor; Cadeddu, Sandro; Cai, Hao; Calabrese, Roberto; Calefice, Lukas; Cali, Stefano; Calvi, Marta; Calvo Gomez, Miriam; Cambon Bouzas, Jose Ivan; Campana, Pierluigi; Campora Perez, Daniel Hugo; Campoverde Quezada, Angel Fernando; Capelli, Simone; Capriotti, Lorenzo; Caravaca-Mora, Ronald Gerardo; Carbone, Angelo; Carcedo Salgado, Lidia; Cardinale, Roberta; Cardini, Alessandro; Carniti, Paolo; Carus, Leon David; Casais Vidal, Adrian; Caspary, Rowina; Casse, Gianluigi; Castro Godinez, Jorge; Cattaneo, Marco; Cavallero, Giovanni; Cavallini, Viola; Celani, Sara; Cerasoli, Jacopo; Cervenkov, Daniel; Cesare, Sara; Chadwick, Abbie Jane; Chahrour, Ibrahim; Charles, Matthew; Charpentier, Philippe; Charpentier, Ph.; Chavez Barajas, Carlos Alberto; Chefdeville, Maximilien; Chen, Chen; Chen, Shanzhen; Chen, Zewen; Chernov, Aleksei; Chernyshenko, Serhii; Chobanova, Veronika; Cholak, Serhii; Chrzaszcz, Marcin; Chubykin, Aleksei; Chulikov, Vladimir; Ciambrone, Paolo; Cicala, Maria Flavia; Cid Vidal, Xabier; Ciezarek, Gregory; Cifra, Pierfrancesco; Clarke, P. E. L.; Clemencic, Marco; Cliff, Harry; Closier, Joel; Cobbledick, John Leslie; Cocha Toapaxi, Carlos Eduardo; Coco, Victor; Cogan, Julien; Cogneras, Eric;

doi: 10.1088/1748-0221/19/02/p02010 , 10.18154/rwth-2024-07462 , 10.18154/rwth-2024-07416 , 10.48550/arxiv.2310.05864

arXiv: http://arxiv.org/abs/2310.05864

handle: 1871.1/f0d7dbba-c928-477a-9278-908ab61c4da2 , 11370/ca86c448-e121-4645-99ab-dada349471d3 , 2434/1109268 , 10446/282929 , 21.11116/0000-000E-6679-8 , 11577/3530523 , 11380/1342946 , 11573/1720420 , 11584/403963 , 11392/2542590 , 11567/1220845 , 11568/1226310 , 11585/1001606 , 11586/470147

Helium identification with LHCb

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Abstract

Abstract 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.

Related Organizations

Hunan Women'S University
China (People's Republic of)
Wuhan University
China (People's Republic of)
University of Genoa
Italy
Heidelberg University
Germany
University of Liverpool
United Kingdom

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Keywords

dE/dx detector, drift tube, 13000 GeV-cms, particle identification: efficiency, High Energy Physics - Experiment, Subatomär fysik, High Energy Physics - Experiment (hep-ex), helium: nucleus, Particle identification methods, Ion identification systems, Subatomic Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], tracking detector, LHCb - Abteilung Hinton, info:eu-repo/classification/ddc/610, light nucleus: particle identification, photon, transition, p p, CERN LHC Coll, light nucleus, helium, nucleus, p p: scattering, photon, transition, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], photon: transition, p p, scattering, FOS: Physical sciences, 610, helium, Physics; HEP; LHC; LHCb; Particles and fields; dE/dx detectors; Ion identification systems; Large detector systems for particle and astroparticle physics; Particle identification methods;, 530, dE/dx detectors, dE/dx detectors; Ion identification systems; Large detector systems for particle and astroparticle physics; Particle identification methods, Ion identification system, ionization, quantum chromodynamics, TeV, RICH, background, Large detector systems for particle and astroparticle physics, scattering, nucleus, 500, silicon, LHC-B, helium: particle identification, efficiency, Large detector systems for particle and astroparticle physic, semiconductor detector, p p: colliding beams, experimental results

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