Measurement of CKM matrix elements in single top quark $t$-channel production in proton-proton collisions at $\sqrt{s} = $ 13 TeV
2020
- Albert M Sirunyan
- Armen Tumasyan
- Wolfgang Adam
- Federico Ambrogi
- Thomas Bergauer
- Marko Dragicevic
- Janos Erö
- A. Escalante Del Valle
- Martin Flechl
- R. Frühwirth
- M. Jeitler
- Natascha Krammer
- Ilse Krätschmer
- D. Liko
- Thomas Madlener
- I. Mikulec
- Navid Rad
- Jochen Schieck
- Robert Schöfbeck
- Markus Spanring
- Wolfgang Waltenberger
- Claudia-Elisabeth Wulz
- Mateusz Zarucki
- Vladimir Drugakov
- Vladimir Mossolov
- J. Suarez Gonzalez
- Mohamed Rashad Darwish
- E. A. De Wolf
- D. Di Croce
- X. Janssen
- Tomas Kello
- Aleksandra Lelek
- Maxim Pieters
- H. Rejeb Sfar
- H. Van Haevermaet
- P. Van Mechelen
- S. Van Putte
- N. Van Remortel
- Freya Blekman
- Emil Sørensen Bols
- Simranjit Singh Chhibra
- J. DHondt
- J. De Clercq
- Denys Lontkovskyi
- Steven Lowette
- Ivan Marchesini
- Seth Moortgat
- Quentin Python
- Stefaan Tavernier
- W. Van Doninck
- P. Van Mulders
- Diego Beghin
- Bugra Bilin
- Barbara Clerbaux
- G. De Lentdecker
- Hugo Delannoy
- Brian Dorney
- Laurent Favart
- Anastasia Grebenyuk
- Amandeep Kaur Kalsi
- Louis Moureaux
- Alexander Popov
- Nicolas Postiau
- Elizabeth Starling
- Laurent Thomas
- C. Vander Velde
- Pascal Vanlaer
- David Vannerom
- Tom Cornelis
- Didar Dobur
- Illia Khvastunov
- Marek Niedziela
- Christos Roskas
- Kirill Skovpen
- Michael Tytgat
- Willem Verbeke
- Basile Vermassen
- Martina Vit
- Giacomo Bruno
- Claudio Caputo
- Pieter David
- Christophe Delaere
- Martin Delcourt
- Andrea Giammanco
- Vincent Lemaitre
- J. Prisciandaro
- Alessia Saggio
- Pietro Vischia
- Joze Zobec
- Gilvan Alves
- G. Correia Silva
- C. Hensel
- A. Moraes
- E. Belchior Batista Das Chagas
- W. Carvalho
- Jose Chinellato
- Eduardo Coelho
- E. M. Da Costa
- G. G. Da Silveira
- D. De Jesus Damiao
- C. De Oliveira Martins
- S. Fonseca De Souza
- H. B. Malbouisson
- Jordan Martins
- D. Matos Figueiredo
- M. Medina Jaime
- M. Melo De Almeida
- C. Mora Herrera
- L. Mundim
- H. Nogima
- W. L. Prado Da Silva
- P. Rebello Teles
- L. J. Sanchez Rosas
- A. Santoro
- A Sznajder
- Mauricio Thiel
- E. J. Tonelli Manganote
- F. Torres Da Silva De Araujo
- A. Vilela Pereira
- C. Avila
- Andrés Cabrera
- Carlos Florez
- C. F. González Hernández
- M. A. Segura Delgado
- J. Mejia Guisao
- J. D. Ruiz Alvarez
- C.A. Salazar González
- N. Vanegas Arbelaez
- Duje Giljanović
- Nikola Godinovic
- Damir Lelas
- Ivica Puljak
- Toni Sculac
- Z. Antunovic
- M. Kovac
- Vuko Brigljević
- D. Ferencek
- K. Kadija
- Benjamin Mesic
- Matej Roguljić
- A. Starodumov
- Tatjana Susa
- Mohsan Waseem Ather
- A. Attikis
- Eleni Erodotou
- Aimilios Ioannou
- Marina Kolosova
- Sotiroulla Konstantinou
- G. Mavromanolakis
- J. Mousa
- C. Nicolaou
- F. Ptochos
- P. A. Razis
- Hans Rykaczewski
- Halil Saka
- Demetra Tsiakkouri
- S. Ahuja
- Chiara Amendola
- F. Beaudette
- Matteo Bonanomi
- P. Busson
- C. Charlot
- Batoul Diab
- Guillaume Falmagne
- R. Granier de Cassagnac
- Inna Kucher
- Artur Lobanov
- C. Martin-Perez
- Matthew Nguyen
- C. Ochando
- P. Paganini
- Jonas Rembser
- R. Salerno
- J. B. Sauvan
- Yves Sirois
- A. Zabi
- Amina Zghiche
- Jean-Laurent Agram
- J. Andrea
- Donald B. Bloch
- Guillaume Bourgatte
- Jean-Marie Brom
- E. C. Chabert
- Caroline Collard
- E. Conte
- Jean-Charles Fontaine
- D. Gelé
- U. Goerlach
- Clément Grimault
- A.-C. Le Bihan
- Nicolas Tonon
- P. Van Hove
- C. Autermann
- Lutz Feld
- K. Klein
- Martin Lipinski
- Danilo Meuser
- Alexander Pauls
- Marius Preuten
- Max Philip Rauch
- Johannes Schulz
- Marius Teroerde
- M. Erdmann
- Bryan Fischer
- Sushant G. Ghosh
- T. Hebbeker
- K. Hoepfner
- Henning Keller
- Luca Mastrolorenzo
- M. Merschmeyer
- A. Meyer
- Philipp Millet
- Giovanni Mocellin
- Spandan Mondal
- Soumya Mukherjee
- Dennis Noll
- Andrzej Novak
- Tobias Pook
- Andrey Pozdnyakov
- Thorben Quast
- Markus Radziej
- Yannik Rath
- Hans Reithler
- Jonas Roemer
- Alexander Schmidt
- Simon Christoph Schuler
- Ashish Sharma
- Sebastian Wiedenbeck
- Shawn Zaleski
- Günter Flügge
- W. Haj Ahmad
- Olena Hlushchenko
- T Kress
- Thomas Müller
- A. Nowack
- Claudia Pistone
- O. Pooth
- Debarati Roy
- Hale Sert
- A. Stahl
- M. Aldaya Martin
- Paul Asmuss
- Illia Babounikau
- H. Bakhshiansohi
- K. Beernaert
- O. Behnke
- A. Bermúdez Martínez
- A. A. Bin Anuar
- Kerstin Borras
- Valeria Botta
- A. J. Campbell
- Alessandro Cardini
- Patrick Connor
- S. Consuegra Rodríguez
- Christian Contreras-Campana
- Vladyslav Danilov
- A. de Wit
- Matteo Maria Defranchis
- C. Diez Pardos
- D. Domínguez Damiani
- G. Eckerlin
- D. Eckstein
- Thomas Eichhorn
- Adam Elwood
- Engin Eren
- L.I. Estevez Banos
- Elisabetta Gallo
- A Geiser
- Alexander Grohsjean
- M. Guthoff
- M. Haranko
- Ali Harb
- Abideh Jafari
- Nur Zulaiha Jomhari
- Hannes Jung
- A. Kasem
- M. Kasemann
- Hessamoddin Kaveh
- J. Keaveney
- C. Kleinwort
- Joscha Knolle
- Dirk Krücker
- W. Lange
- T. Lenz
- Jindrich Lidrych
- K. Lipka
- Wolfgang Lohmann
- R. Mankel
- I. A. Melzer-Pellmann
- Andreas Bernhard Meyer
- M. Meyer
- Marino Missiroli
- J. Mnich
- A. Mussgiller
- Volodymyr Myronenko
- D. Pérez Adán
- Svenja Karen Pflitsch
- D. Pitzl
- A. Raspereza
- Andrej Saibel
- Mykola Savitskyi
- Valérie Scheurer
- Paul Schütze
- Christian Schwanenberger
- Rostyslav Shevchenko
- A. Singh
- R.E. Sosa Ricardo
- Heiner Tholen
- Oleksii Turkot
- Antonio Vagnerini
- M. Van De Klundert
- R. Walsh
- Yiwen Wen
- Katarzyna Wichmann
- C. Wissing
- Oleksandr Zenaiev
- Radek Zlebcik
- Robin Aggleton
- Samuel Bein
- Lisa Benato
- Anna Benecke
- Torben Dreyer
- Aliakbar Ebrahimi
- Finn Feindt
- Alexander Fröhlich
- Christoph Garbers
- Erika Garutti
- Daniel Gonzalez
- Paolo Gunnellini
- Johannes Haller
- Andreas Hinzmann
- Anastasia Karavdina
- Gregor Kasieczka
- R. Klanner
- Roman Kogler
- Nataliia Kovalchuk
- Simon Kurz
- Viktor Kutzner
- Johannes Lange
- Torben Lange
- Andrea Malara
- Jens Multhaup
- Caroline Elisabeth Niniane Niemeyer
- Arne Reimers
- Oliver Rieger
- P. Schleper
- Svenja Schumann
- J. Schwandt
- Jory Sonneveld
- H. Stadie
- Georg Steinbrück
- Benedikt Vormwald
- Irene Zoi
- Melike Akbiyik
- Marta Baselga
- Sebastian Baur
- T. Berger
- Erik Butz
- René Caspart
- T. Chwalek
- W. De Boer
- A. Dierlamm
- K. El Morabit
- Nils Faltermann
- Manuel Giffels
- Artur Gottmann
- F. Hartmann
- Christoph Heidecker
- Ulrich Husemann
- M. A. Iqbal
- Simon Kudella
- S. Maier
- Soureek Mitra
- Matthias Ulrich Mozer
- D. Muller
- Th. Müller
- Marco Musich
- Andreas Nürnberg
- G. Quast
- K. Rabbertz
- Daniel Savoiu
- Daniela Schäfer
- Matthias Schnepf
- Matthias Schröder
- Ivan Shvetsov
- H. J. Simonis
- R. Ulrich
- Michael Wassmer
- M. Weber
- Clemens Wöhrmann
- Roger Wolf
- Sebastian Wozniewski
- G. Anagnostou
- Patrick Asenov
- G. Daskalakis
- T. Geralis
- Aristotelis Kyriakis
- D. Loukas
- G. Paspalaki
- Anna Stakia
- Magda Diamantopoulou
- George Karathanasis
- Pantelis Kontaxakis
- Arkadios Manousakis-Katsikakis
- A D Panagiotou
- Ioanna Papavergou
- N. Saoulidou
- Konstantinos Theofilatos
- Konstantinos Vellidis
- Emmanouil Vourliotis
- Leonid Chtchipounov
- Victor Golovtcov
- Y. Ivanov
- Victor Kim
- E. Kuznetsova
- P. Levchenko
- Victor Murzin
- Vadim Oreshkin
- I. Smirnov
- Dmitry Sosnov
- Valentin Sulimov
- L. Uvarov
- A. Vorobyev
- Yu. Andreev
- A. Dermenev
- S. Gninenko
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- Anton Karneyeu
- M. Kirsanov
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- D. Tlisov
- A. Toropin
- Anton Babaev
- Aleksandr Iuzhakov
- Vitalii Okhotnikov
- Vladislav Borchsh
- Vladimir Ivanchenko
- Evgueni Tcherniaev
- P. Adzic
- Predrag Cirkovic
- Miloš Đorđević
- Predrag Milenovic
- Jovan Milosevic
- Milan Stojanovic
- Thea Klaeboe Aarrestad
- Duccio Abbaneo
- B. Akgun
- E. Auffray
- G. Auzinger
- Joachim Baechler
- P. Baillon
- A. H. Ball
- David Barney
- Joshua Bendavid
- Michele Bianco
- Andrea Bocci
- Pierluigi Bortignon
- Edoardo Bossini
- Erica Brondolin
- Tiziano Camporesi
- Alessandro Caratelli
- G. Cerminara
- Emilien Chapon
- Giacomo Cucciati
- David DEnterria
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- A. David
- Olivier Davignon
- A. De Roeck
- Mario Deile
- R. Di Maria
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- Marc Dünser
- Niels Dupont
- Anna Elliott-Peisert
- Natalia Emriskova
- Francesco Fallavollita
- D. Fasanella
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- G. Franzoni
- J. Fulcher
- W. Funk
- S. Gianì
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- K. Gill
- F. Glege
- Loukas Gouskos
- Marek Gruchala
- Maxime Guilbaud
- Doga Gulhan
- J. Hegeman
- Constantin Heidegger
- Yutaro Iiyama
- Vincenzo Innocente
- Thomas James
- Patrick Janot
- Olena Karacheban
- Jan Kaspar
- Jan Kieseler
- Manfred Krammer
- Nicolaus Kratochwil
- Clemens Lange
- P. Lecoq
- Kenneth Long
- Carlos Lourenco
- L. Malgeri
- M. Mannelli
- A. Massironi
- F. Meijers
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- F. Moortgat
- Martijn Mulders
- Jennifer Ngadiuba
- Jeremi Niedziela
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- Felice Pantaleo
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- Emmanuelle Perez
- M. Peruzzi
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- G Petrucciani
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- Maurizio Pierini
- Florian Michael Pitters
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- H. Sakulin
- Jakob Salfeld-Nebgen
- Simone Scarfi
- Christoph Schäfer
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- Jan Steggemann
- Sioni Summers
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- Kinga Anna Wozniak
- W. D. Zeuner
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- Alessandro Calandri
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- Günther Dissertori
- M. Dittmar
- Mauro Donegà
- Christian Dorfer
- T. A. Gómez Espinosa
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- Si Xie
- Zehui Zhang
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- Michael Benjamin Andrews
- T. Ferguson
- Tanmay Mudholkar
- Manfred Paulini
- Menglei Sun
- I. Vorobiev
- Marc Weinberg
- Daniel Abercrombie
- Brandon Allen
- Ran Bi
- Stephanie Brandt
- Wit Busza
- Ivan Amos Cali
- Mariarosaria DAlfonso
- G. Gomez Ceballos
- Maxim Goncharov
- Philip Harris
- Dylan Hsu
- Miao Hu
- Markus Klute
- Dmytro Kovalskyi
- Yonghoon Lee
- P.D. Luckey
- Benedikt Maier
- Andrea Carlo Marini
- Christopher Mcginn
- Camelia Mironov
- Siddharth Narayanan
- Xinmei Niu
- Christoph Paus
- Dylan Rankin
- Christof Roland
- Gunther Roland
- Zhaozhong Shi
- G.S.F. Stephans
- Konstanty Sumorok
- Kaya Tatar
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- Jing Wang
- T. W. Wang
- Bolek Wyslouch
- N Akchurin
- J. Damgov
- F. De Guio
- Vinay Hegde
- S. Kunori
- Kamal Lamichhane
- Seh Wook Lee
- Tielige Mengke
- Samila Muthumuni
- Timo Peltola
- Sonaina Undleeb
- I. Volobouev
- Zhangqier Wang
- Andrew Whitbeck
- S. V. Greene
- A. Gurrola
- Ravi Janjam
- W. Johns
- C. F. Maguire
- A. Melo
- Hong Ni
- Klaas Padeken
- Francesco Romeo
- P.D. Sheldon
- S. Tuo
- J. Velkovska
- Marta Verweij
- M. W. Arenton
- Patrizia Barria
- Bradley Cox
- Grace Cummings
- John Hakala
- Robert Hirosky
- Matthew Joyce
- A. Ledovskoy
- C. Neu
- Benjamin Bordy Tannenwald
- Yanchu Wang
- Evan Wolfe
- Fan Xia
- R.F. Harr
- P. E. Karchin
- Nabin Poudyal
- Jared Sturdy
- Prakash Thapa
- K M Black
- Tulika Bose
- James Buchanan
- Cécile Caillol
- D. Carlsmith
- Sridhara Dasu
- I. De Bruyn
- Laura Dodd
- Camilla Galloni
- He He
- M. Herndon
- A. Hervé
- Usama Hussain
- A. Lanaro
- Andrew Loeliger
- R. Loveless
- J. Madhusudanan Sreekala
- Abhishikth Mallampalli
- Deborah Pinna
- Tyler Ruggles
- Alexander Savin
- W. H. Smith
- Dylan Teague
- Stephen Trembath-reichert
The first direct, model-independent measurement is presented of the modulus of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements $|V_\mathrm{tb}|$, $|V_\mathrm{td}|$, and $|V_\mathrm{ts}|$, 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 $|V_\mathrm{tb}| >$ 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 $|V_\mathrm{tb}| =$ 0.988 $\pm$ 0.024, and $|V_\mathrm{td}|^2 +|V_\mathrm{ts}|^2 =$ 0.06 $\pm$ 0.06, where the uncertainties include both statistical and systematic components, are measured.
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