Imperial College London

ProfessorGeoffreyHall

Faculty of Natural SciencesDepartment of Physics

Professor of Physics
 
 
 
//

Contact

 

+44 (0)20 7594 7800g.hall Website

 
 
//

Assistant

 

Ms Paula Brown +44 (0)20 7594 7823

 
//

Location

 

511ABlackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Sirunyan:2020:10.1016/j.physletb.2020.135609,
author = {Sirunyan, AM and Tumasyan, A and Adam, W and Ambrogi, F and Bergauer, T and Brandstetter, J and Dragicevic, M and Eroe, J and Del, Valle AE and Flechl, M and Fruehwirth, R and Jeitler, M and Krammer, N and Kraetschmer, I and Liko, D and Madlener, T and Mikulec, I and Rad, N and Schieck, J and Schoefbeck, R and Spanring, M and Spitzbart, D and Waltenberger, W and Wulz, C-E and Zarucki, M and Drugakov, V and Mossolov, V and Gonzalez, JS and Darwish, MR and De, Wolf EA and Di, Croce D and Janssen, X and Lelek, A and Pieters, M and Sfar, HR and Van, Haevermaet H and Van, Mechelen P and Van, Putte S and Van, Remortel N and Blekman, F and Bols, ES and Chhibra, SS and D'Hondt, J and De, Clercq J and Lontkovskyi, D and Lowette, S and Marchesini, I and Moortgat, S and Python, Q and Skovpen, K and Tavernier, S and Van, Doninck W and Van, Mulders P and Burns, D and Beghin, D and Bilin, B and Brun, H and Clerbaux, B and De, Lentdecker G and Delannoy, H and Dorney, B and Favart, L and Grebenyuk, A },
doi = {10.1016/j.physletb.2020.135609},
journal = {Physics Letters B: Nuclear Physics and Particle Physics},
pages = {1--31},
title = {Measurement of CKM matrix elements in single top quark t-channel production in proton-proton collisions at root s=13 TeV},
url = {http://dx.doi.org/10.1016/j.physletb.2020.135609},
volume = {808},
year = {2020}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The first direct, model-independent measurement is presented of the modulus of the Cabibbo–Kobayashi–Maskawa (CKM) matrix elements |Vtb|, |Vtd|, and |Vts|, in final states enriched in single top quark t-channel events. The analysis uses proton-proton collision data from the LHC, collected during 2016 by the CMS experiment, at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. Processes directly sensitive to these matrix elements are considered at both the production and decay vertices of the top quark. In the standard model hypothesis of CKM unitarity, a lower limit of |Vtb| >0.970 is measured at the 95% confidence level. Several theories beyond the standard model are considered, and by releasing all constraints among the involved parameters, the values |Vtb| =0.988 ±0.024, and |Vtd|2+|Vts|2=0.06 ±0.06, where the uncertainties include both statistical and systematic components, are measured.
AU - Sirunyan,AM
AU - Tumasyan,A
AU - Adam,W
AU - Ambrogi,F
AU - Bergauer,T
AU - Brandstetter,J
AU - Dragicevic,M
AU - Eroe,J
AU - Del,Valle AE
AU - Flechl,M
AU - Fruehwirth,R
AU - Jeitler,M
AU - Krammer,N
AU - Kraetschmer,I
AU - Liko,D
AU - Madlener,T
AU - Mikulec,I
AU - Rad,N
AU - Schieck,J
AU - Schoefbeck,R
AU - Spanring,M
AU - Spitzbart,D
AU - Waltenberger,W
AU - Wulz,C-E
AU - Zarucki,M
AU - Drugakov,V
AU - Mossolov,V
AU - Gonzalez,JS
AU - Darwish,MR
AU - De,Wolf EA
AU - Di,Croce D
AU - Janssen,X
AU - Lelek,A
AU - Pieters,M
AU - Sfar,HR
AU - Van,Haevermaet H
AU - Van,Mechelen P
AU - Van,Putte S
AU - Van,Remortel N
AU - Blekman,F
AU - Bols,ES
AU - Chhibra,SS
AU - D'Hondt,J
AU - De,Clercq J
AU - Lontkovskyi,D
AU - Lowette,S
AU - Marchesini,I
AU - Moortgat,S
AU - Python,Q
AU - Skovpen,K
AU - Tavernier,S
AU - Van,Doninck W
AU - Van,Mulders P
AU - Burns,D
AU - Beghin,D
AU - Bilin,B
AU - Brun,H
AU - Clerbaux,B
AU - De,Lentdecker G
AU - Delannoy,H
AU - Dorney,B
AU - Favart,L
AU - Grebenyuk,A
AU - Kalsi,AK
AU - Popov,A
AU - Postiau,N
AU - Starling,E
AU - Thomas,L
AU - Vander,Velde C
AU - Vanlaer,P
AU - Vannerom,D
AU - Fang,W
AU - Gao,X
AU - Cornelis,T
AU - Dobur,D
AU - Khvastunov,I
AU - Niedziela,M
AU - Roskas,C
AU - Trocino,D
AU - Tytgat,M
AU - Verbeke,W
AU - Vermassen,B
AU - Vit,M
AU - Bondu,O
AU - Bruno,G
AU - Caputo,C
AU - David,P
AU - Delaere,C
AU - Delcourt,M
AU - Giammanco,A
AU - Lemaitre,V
AU - Prisciandaro,J
AU - Saggio,A
AU - Marono,MV
AU - Vischia,P
AU - Zobec,J
AU - Alves,FL
AU - Alves,GA
AU - Correia,Silva G
AU - Hensel,C
AU - Moraes,A
AU - Rebello,Teles P
AU - Belchior,Batista Das Chagas E
AU - Carvalho,W
AU - Chinellato,J
AU - Coelho,E
AU - Da,Costa EM
AU - Da,Silveira GG
AU - De,Jesus Damiao D
AU - De,Oliveira Martins C
AU - Fonseca,De Souza S
AU - Huertas,Guativa LM
AU - Malbouisson,H
AU - Martins,J
AU - Matos,Figueiredo D
AU - Medina,Jaime M
AU - Melo,De Almeida M
AU - Mora,Herrera C
AU - Mundim,L
AU - Nogima,H
AU - Prado,Da Silva WL
AU - Sanchez,Rosas LJ
AU - Santoro,A
AU - Sznajder,A
AU - Thiel,M
AU - Tonelli,Manganote EJ
AU - Torres,Da Silva De Araujo F
AU - Vilela,Pereira A
AU - Bernardes,CA
AU - Calligaris,L
AU - Fernandez,Perez Tomei TR
AU - Novaes,SF
AU - Padula,S
AU - Gregores,EM
AU - Lemos,DS
AU - Mercadante,PG
AU - Aleksandrov,A
AU - Antchev,G
AU - Hadjiiska,R
AU - Iaydjiev,P
AU - Misheva,M
AU - Rodozov,M
AU - Shopova,M
AU - Sultanov,G
AU - Bonchev,M
AU - Dimitrov,A
AU - Ivanov,T
AU - Litov,L
AU - Pavlov,B
AU - Petkov,P
AU - Yuan,L
AU - Ahmad,M
AU - Hu,Z
AU - Wang,Y
AU - Dozen,C
AU - Chen,GM
AU - Chen,HS
AU - Chen,M
AU - Jiang,CH
AU - Leggat,D
AU - Liao,H
AU - Liu,Z
AU - Spiezia,A
DO - 10.1016/j.physletb.2020.135609
EP - 31
PY - 2020///
SN - 0370-2693
SP - 1
TI - Measurement of CKM matrix elements in single top quark t-channel production in proton-proton collisions at root s=13 TeV
T2 - Physics Letters B: Nuclear Physics and Particle Physics
UR - http://dx.doi.org/10.1016/j.physletb.2020.135609
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000571769700003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://reader.elsevier.com/reader/sd/pii/S0370269320304123?token=742947E78E2529AD9981714B4363A2CBBF86888062767E8CE9B5FBD5545DCEA75F60819BFD913FA7D1C1741E8BA7A6FE
UR - http://hdl.handle.net/10044/1/83230
VL - 808
ER -