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@article{Aaij:2024:03/P03010,
author = {Aaij, R and Abdelmotteleb, ASW and Abellan, Beteta C and Abudinen, 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 Alfonso, Albero A and Aliouche, Z and Alvarez, Cartelle P 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, A and Ao, D and Archilli, F and Argenton, M and Arguedas, Cuendis S and Artamonov, A and Artuso, M and Aslanides, E and Atzeni, M and Audurier, B and Bacher, D and Bachiller, Perea I and Bachmann, S and Bachmayer, M and Back, JJ and Baladron, Rodriguez P and Balagura, V and Baldini, W and Baptista, de Souza Leite J and Barbetti, M and Barbosa, IR and Barlow, RJ and Barsuk, S and Barter, W and Bartolini, M and Bartz, J and Baryshnikov, F and Basels, JM and Bassi, G and Batsukh, B and Ba},
doi = {03/P03010},
journal = {Journal of Instrumentation},
title = {Curvature-bias corrections using a pseudomass method},
url = {http://dx.doi.org/10.1088/1748-0221/19/03/P03010},
volume = {19},
year = {2024}
}

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TY  - JOUR
AB  - Momentum measurements for very high momentum charged particles, such as muons from electroweak vector boson decays, are particularly susceptible to charge-dependent curvature biases that arise from misalignments of tracking detectors. Low momentum charged particles used in alignment procedures have limited sensitivity to coherent displacements of such detectors, and therefore are unable to fully constrain these misalignments to the precision necessary for studies of electroweak physics. Additional approaches are therefore required to understand and correct for these effects. In this paper the curvature biases present at the LHCb detector are studied using the pseudomass method in proton-proton collision data recorded at centre of mass energy √s = 13 TeV during 2016, 2017 and 2018. The biases are determined using Z → μ+μ- decays in intervals defined by the data-taking period, magnet polarity and muon direction. Correcting for these biases, which are typically at the 10-4 GeV-1 level, improves the Z → μ+μ- mass resolution by roughly 18% and eliminates several pathological trends in the kinematic-dependence of the mean dimuon invariant mass.
AU  - Aaij,R
AU  - Abdelmotteleb,ASW
AU  - Abellan,Beteta C
AU  - Abudinen,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  - Alfonso,Albero A
AU  - Aliouche,Z
AU  - Alvarez,Cartelle P
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,A
AU  - Ao,D
AU  - Archilli,F
AU  - Argenton,M
AU  - Arguedas,Cuendis S
AU  - Artamonov,A
AU  - Artuso,M
AU  - Aslanides,E
AU  - Atzeni,M
AU  - Audurier,B
AU  - Bacher,D
AU  - Bachiller,Perea I
AU  - Bachmann,S
AU  - Bachmayer,M
AU  - Back,JJ
AU  - Baladron,Rodriguez P
AU  - Balagura,V
AU  - Baldini,W
AU  - Baptista,de Souza Leite J
AU  - Barbetti,M
AU  - Barbosa,IR
AU  - Barlow,RJ
AU  - Barsuk,S
AU  - Barter,W
AU  - Bartolini,M
AU  - Bartz,J
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  - Bernet,Andres S
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
AU  - Bobulska,D
DO  - 03/P03010
PY  - 2024///
TI  - Curvature-bias corrections using a pseudomass method
T2  - Journal of Instrumentation
UR  - http://dx.doi.org/10.1088/1748-0221/19/03/P03010
VL  - 19
ER  -

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