Helium identification with LHCb-Reference-Cited by-同舟云学术

Helium identification with LHCb

Published:2024-02-01 Issue:02 Volume:19 Page:P02010
ISSN:1748-0221
Container-title:Journal of Instrumentation
language:
Short-container-title:J. Inst.

Author:

Aaij R.^ORCID,Abdelmotteleb A.S.W.^ORCID,Abellan Beteta C.,Abudinén F.^ORCID,Ackernley T.^ORCID,Adeva B.^ORCID,Adinolfi M.^ORCID,Adlarson P.^ORCID,Agapopoulou C.^ORCID,Aidala C.A.^ORCID,Ajaltouni Z.,Akar S.^ORCID,Akiba K.^ORCID,Albicocco P.^ORCID,Albrecht J.^ORCID,Alessio F.^ORCID,Alexander M.^ORCID,Alfonso Albero A.^ORCID,Aliouche Z.^ORCID,Alvarez Cartelle P.^ORCID,Amalric R.^ORCID,Amato S.^ORCID,Amey J.L.^ORCID,Amhis Y.^ORCID,An L.^ORCID,Anderlini L.^ORCID,Andersson M.^ORCID,Andreianov A.^ORCID,Andreola P.^ORCID,Andreotti M.^ORCID,Andreou D.^ORCID,Anelli A.A.^ORCID,Ao D.^ORCID,Archilli F.^ORCID,Argenton M.^ORCID,Arguedas Cuendis S.^ORCID,Artamonov A.^ORCID,Artuso M.^ORCID,Aslanides E.^ORCID,Atzeni M.^ORCID,Audurier B.^ORCID,Bacher D.^ORCID,Bachiller Perea I.^ORCID,Bachmann S.^ORCID,Bachmayer M.^ORCID,Back J.J.^ORCID,Bailly-reyre A.,Baladron Rodriguez P.^ORCID,Balagura V.^ORCID,Baldini W.^ORCID,Baptista de Souza Leite J.^ORCID,Barbetti M.^ORCID,Barbosa I.R.^ORCID,Barlow R.J.^ORCID,Barsuk S.^ORCID,Barter W.^ORCID,Bartolini M.^ORCID,Baryshnikov F.^ORCID,Basels J.M.^ORCID,Bassi G.^ORCID,Batsukh B.^ORCID,Battig A.^ORCID,Bay A.^ORCID,Beck A.^ORCID,Becker M.^ORCID,Bedeschi F.^ORCID,Bediaga I.B.^ORCID,Beiter A.,Belin S.^ORCID,Bellee V.^ORCID,Belous K.^ORCID,Belov I.^ORCID,Belyaev I.^ORCID,Benane G.^ORCID,Bencivenni G.^ORCID,Ben-Haim E.^ORCID,Berezhnoy A.^ORCID,Bernet R.^ORCID,Bernet Andres S.^ORCID,Bernstein H.C.,Bertella C.^ORCID,Bertolin A.^ORCID,Betancourt C.^ORCID,Betti F.^ORCID,Bex J.^ORCID,Bezshyiko Ia.^ORCID,Bhom J.^ORCID,Bieker M.S.^ORCID,Biesuz N.V.^ORCID,Billoir P.^ORCID,Biolchini A.^ORCID,Birch M.^ORCID,Bishop F.C.R.^ORCID,Bitadze A.^ORCID,Bizzeti A.^ORCID,Blago M.P.^ORCID,Blake T.^ORCID,Blanc F.^ORCID,Blank J.E.^ORCID,Blusk S.^ORCID,Bobulska D.^ORCID,Bocharnikov V.^ORCID,Boelhauve J.A.^ORCID,Boente Garcia O.^ORCID,Boettcher T.^ORCID,Bohare A.^ORCID,Boldyrev A.^ORCID,Bolognani C.S.^ORCID,Bolzonella R.^ORCID,Bondar N.^ORCID,Borgato F.^ORCID,Borghi S.^ORCID,Borsato M.^ORCID,Borsuk J.T.^ORCID,Bouchiba S.A.^ORCID,Bowcock T.J.V.^ORCID,Boyer A.^ORCID,Bozzi C.^ORCID,Bradley M.J.,Braun S.^ORCID,Brea Rodriguez A.^ORCID,Breer N.^ORCID,Brodzicka J.^ORCID,Brossa Gonzalo A.^ORCID,Brown J.^ORCID,Brundu D.^ORCID,Buonaura A.^ORCID,Buonincontri L.^ORCID,Burke A.T.^ORCID,Burr C.^ORCID,Bursche A.,Butkevich A.^ORCID,Butter J.S.^ORCID,Buytaert J.^ORCID,Byczynski W.^ORCID,Cadeddu S.^ORCID,Cai H.,Calabrese R.^ORCID,Calefice L.^ORCID,Cali S.^ORCID,Calvi M.^ORCID,Calvo Gomez M.^ORCID,Cambon Bouzas J.^ORCID,Campana P.^ORCID,Campora Perez D.H.^ORCID,Campoverde Quezada A.F.^ORCID,Capelli S.^ORCID,Capriotti L.^ORCID,Caravaca-Mora R.^ORCID,Carbone A.^ORCID,Carcedo Salgado L.^ORCID,Cardinale R.^ORCID,Cardini A.^ORCID,Carniti P.^ORCID,Carus L.,Casais Vidal A.^ORCID,Caspary R.^ORCID,Casse G.^ORCID,Castro Godinez J.^ORCID,Cattaneo M.^ORCID,Cavallero G.^ORCID,Cavallini V.^ORCID,Celani S.^ORCID,Cerasoli J.^ORCID,Cervenkov D.^ORCID,Cesare S.^ORCID,Chadwick A.J.^ORCID,Chahrour I.^ORCID,Charles M.^ORCID,Charpentier Ph.^ORCID,Chavez Barajas C.A.^ORCID,Chefdeville M.^ORCID,Chen C.^ORCID,Chen S.^ORCID,Chernov A.^ORCID,Chernyshenko S.^ORCID,Chobanova V.^ORCID,Cholak S.^ORCID,Chrzaszcz M.^ORCID,Chubykin A.^ORCID,Chulikov V.^ORCID,Ciambrone P.^ORCID,Cicala M.F.^ORCID,Cid Vidal X.^ORCID,Ciezarek G.^ORCID,Cifra P.^ORCID,Clarke P.E.L.^ORCID,Clemencic M.^ORCID,Cliff H.V.^ORCID,Closier J.^ORCID,Cobbledick J.L.^ORCID,Cocha Toapaxi C.^ORCID,Coco V.^ORCID,Cogan J.^ORCID,Cogneras E.^ORCID,Cojocariu L.^ORCID,Collins P.^ORCID,Colombo T.^ORCID,Comerma-Montells A.^ORCID,Congedo L.^ORCID,Contu A.^ORCID,Cooke N.^ORCID,Corredoira I.^ORCID,Correia A.^ORCID,Corti G.^ORCID,Cottee Meldrum J.J.,Couturier B.^ORCID,Craik D.C.^ORCID,Cruz Torres M.^ORCID,Currie R.^ORCID,Da Silva C.L.^ORCID,Dadabaev S.^ORCID,Dai L.^ORCID,Dai X.^ORCID,Dall'Occo E.^ORCID,Dalseno J.^ORCID,D'Ambrosio C.^ORCID,Daniel J.^ORCID,Danilina A.^ORCID,d'Argent P.^ORCID,Davidson A.^ORCID,Davies J.E.^ORCID,Davis A.^ORCID,De Aguiar Francisco O.^ORCID,De Angelis C.,de Boer J.^ORCID,De Bruyn K.^ORCID,De Capua S.^ORCID,De Cian M.^ORCID,De Freitas Carneiro Da Graca U.^ORCID,De Lucia E.^ORCID,De Miranda J.M.^ORCID,De Paula L.^ORCID,De Serio M.^ORCID,De Simone D.^ORCID,De Simone P.^ORCID,De Vellis F.^ORCID,de Vries J.A.^ORCID,Debernardis F.^ORCID,Decamp D.^ORCID,Dedu V.^ORCID,Del Buono L.^ORCID,Delaney B.^ORCID,Dembinski H.-P.^ORCID,Deng J.^ORCID,Denysenko V.^ORCID,Deschamps O.^ORCID,Dettori F.^ORCID,Dey B.^ORCID,Di Nezza P.^ORCID,Diachkov I.^ORCID,Didenko S.^ORCID,Ding S.^ORCID,Dobishuk V.^ORCID,Docheva A.D.^ORCID,Dolmatov A.,Dong C.^ORCID,Donohoe A.M.^ORCID,Dordei F.^ORCID,dos Reis A.C.^ORCID,Douglas L.,Downes A.G.^ORCID,Duan W.^ORCID,Duda P.^ORCID,Dudek M.W.^ORCID,Dufour L.^ORCID,Duk V.^ORCID,Durante P.^ORCID,Duras M.M.^ORCID,Durham J.M.^ORCID,Dziurda A.^ORCID,Dzyuba A.^ORCID,Easo S.^ORCID,Eckstein E.,Egede U.^ORCID,Egorychev A.^ORCID,Egorychev V.^ORCID,Eirea Orro C.,Eisenhardt 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M.^ORCID,Kostiuk I.^ORCID,Kot O.,Kotriakhova S.^ORCID,Kozachuk A.^ORCID,Kravchenko P.^ORCID,Kravchuk L.^ORCID,Kreps M.^ORCID,Kretzschmar S.^ORCID,Krokovny P.^ORCID,Krupa W.^ORCID,Krzemien W.^ORCID,Kubat J.,Kubis S.^ORCID,Kucewicz W.^ORCID,Kucharczyk M.^ORCID,Kudryavtsev V.^ORCID,Kulikova E.^ORCID,Kupsc A.^ORCID,Kutsenko B.K.^ORCID,Lacarrere D.^ORCID,Lai A.^ORCID,Lampis A.^ORCID,Lancierini D.^ORCID,Landesa Gomez C.^ORCID,Lane J.J.^ORCID,Lane R.^ORCID,Langenbruch C.^ORCID,Langer J.^ORCID,Lantwin O.^ORCID,Latham T.^ORCID,Lazzari F.^ORCID,Lazzeroni C.^ORCID,Le Gac R.^ORCID,Lee S.H.^ORCID,Lefèvre R.^ORCID,Leflat A.^ORCID,Legotin S.^ORCID,Lehuraux M.^ORCID,Leroy O.^ORCID,Lesiak T.^ORCID,Leverington B.^ORCID,Li A.^ORCID,Li H.^ORCID,Li K.^ORCID,Li L.^ORCID,Li P.^ORCID,Li P.-R.^ORCID,Li S.^ORCID,Li T.^ORCID,Li T.^ORCID,Li Y.,Li Y.^ORCID,Li Z.^ORCID,Lian Z.^ORCID,Liang X.^ORCID,Lin C.^ORCID,Lin T.^ORCID,Lindner R.^ORCID,Lisovskyi V.^ORCID,Litvinov R.^ORCID,Liu G.^ORCID,Liu H.^ORCID,Liu K.^ORCID,Liu Q.^ORCID,Liu S.^ORCID,Liu Y.^ORCID,Liu Y.,Liu Y.L.^ORCID,Lobo Salvia A.^ORCID,Loi A.^ORCID,Lomba Castro J.^ORCID,Long T.^ORCID,Lopes J.H.^ORCID,Lopez Huertas A.^ORCID,López Soliño S.^ORCID,Lovell G.H.^ORCID,Lucarelli C.^ORCID,Lucchesi D.^ORCID,Luchuk S.^ORCID,Lucio Martinez M.^ORCID,Lukashenko V.^ORCID,Luo Y.^ORCID,Lupato A.^ORCID,Luppi E.^ORCID,Lynch K.^ORCID,Lyu X.-R.^ORCID,Ma G.M.^ORCID,Ma R.^ORCID,Maccolini S.^ORCID,Machefert F.^ORCID,Maciuc F.^ORCID,Mackay I.^ORCID,Madhan Mohan L.R.^ORCID,Madurai M.M.^ORCID,Maevskiy A.^ORCID,Magdalinski D.^ORCID,Maisuzenko D.^ORCID,Majewski M.W.,Malczewski J.J.^ORCID,Malde S.^ORCID,Malecki B.^ORCID,Malentacca L.,Malinin A.^ORCID,Maltsev T.^ORCID,Manca G.^ORCID,Mancinelli G.^ORCID,Mancuso C.^ORCID,Manera Escalero R.,Manuzzi D.^ORCID,Marangotto D.^ORCID,Marchand J.F.^ORCID,Marchevski R.^ORCID,Marconi U.^ORCID,Mariani S.^ORCID,Marin Benito C.^ORCID,Marks J.^ORCID,Marshall A.M.^ORCID,Marshall P.J.,Martelli G.^ORCID,Martellotti 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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.

Publisher

IOP Publishing

Link

https://iopscience.iop.org/article/10.1088/1748-0221/19/02/P02010/pdf

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