Observation of s-channel production of single top quarks at the Tevatron.

نویسندگان

  • T Aaltonen
  • V M Abazov
  • B Abbott
  • B S Acharya
  • M Adams
  • T Adams
  • J P Agnew
  • G D Alexeev
  • G Alkhazov
  • A Alton
  • S Amerio
  • D Amidei
  • A Anastassov
  • A Annovi
  • J Antos
  • G Apollinari
  • J A Appel
  • T Arisawa
  • A Artikov
  • J Asaadi
  • W Ashmanskas
  • A Askew
  • S Atkins
  • B Auerbach
  • K Augsten
  • A Aurisano
  • C Avila
  • F Azfar
  • F Badaud
  • W Badgett
  • T Bae
  • L Bagby
  • B Baldin
  • D V Bandurin
  • S Banerjee
  • A Barbaro-Galtieri
  • E Barberis
  • P Baringer
  • V E Barnes
  • B A Barnett
  • P Barria
  • J F Bartlett
  • P Bartos
  • U Bassler
  • M Bauce
  • V Bazterra
  • A Bean
  • F Bedeschi
  • M Begalli
  • S Behari
  • L Bellantoni
  • G Bellettini
  • J Bellinger
  • D Benjamin
  • A Beretvas
  • S B Beri
  • G Bernardi
  • R Bernhard
  • I Bertram
  • M Besançon
  • R Beuselinck
  • P C Bhat
  • S Bhatia
  • V Bhatnagar
  • A Bhatti
  • K R Bland
  • G Blazey
  • S Blessing
  • K Bloom
  • B Blumenfeld
  • A Bocci
  • A Bodek
  • A Boehnlein
  • D Boline
  • E E Boos
  • G Borissov
  • D Bortoletto
  • M Borysova
  • J Boudreau
  • A Boveia
  • A Brandt
  • O Brandt
  • L Brigliadori
  • R Brock
  • C Bromberg
  • A Bross
  • D Brown
  • E Brucken
  • X B Bu
  • J Budagov
  • H S Budd
  • M Buehler
  • V Buescher
  • V Bunichev
  • S Burdin
  • K Burkett
  • G Busetto
  • P Bussey
  • C P Buszello
  • P Butti
  • A Buzatu
  • A Calamba
  • E Camacho-Pérez
  • S Camarda
  • M Campanelli
  • F Canelli
  • B Carls
  • D Carlsmith
  • R Carosi
  • S Carrillo
  • B Casal
  • M Casarsa
  • B C K Casey
  • H Castilla-Valdez
  • A Castro
  • P Catastini
  • S Caughron
  • D Cauz
  • V Cavaliere
  • M Cavalli-Sforza
  • A Cerri
  • L Cerrito
  • S Chakrabarti
  • K M Chan
  • A Chandra
  • E Chapon
  • G Chen
  • Y C Chen
  • M Chertok
  • G Chiarelli
  • G Chlachidze
  • K Cho
  • S W Cho
  • S Choi
  • D Chokheli
  • B Choudhary
  • S Cihangir
  • D Claes
  • A Clark
  • C Clarke
  • J Clutter
  • M E Convery
  • J Conway
  • M Cooke
  • W E Cooper
  • M Corbo
  • M Corcoran
  • M Cordelli
  • F Couderc
  • M-C Cousinou
  • C A Cox
  • D J Cox
  • M Cremonesi
  • D Cruz
  • J Cuevas
  • R Culbertson
  • D Cutts
  • A Das
  • N d'Ascenzo
  • M Datta
  • G Davies
  • P de Barbaro
  • S J de Jong
  • E De La Cruz-Burelo
  • F Déliot
  • R Demina
  • L Demortier
  • M Deninno
  • D Denisov
  • S P Denisov
  • M D'Errico
  • S Desai
  • C Deterre
  • K DeVaughan
  • F Devoto
  • A Di Canto
  • B Di Ruzza
  • H T Diehl
  • M Diesburg
  • P F Ding
  • J R Dittmann
  • A Dominguez
  • S Donati
  • M D'Onofrio
  • M Dorigo
  • A Driutti
  • A Dubey
  • L V Dudko
  • A Duperrin
  • S Dutt
  • M Eads
  • K Ebina
  • R Edgar
  • D Edmunds
  • A Elagin
  • J Ellison
  • V D Elvira
  • Y Enari
  • R Erbacher
  • S Errede
  • B Esham
  • H Evans
  • V N Evdokimov
  • S Farrington
  • L Feng
  • T Ferbel
  • J P Fernández Ramos
  • F Fiedler
  • R Field
  • F Filthaut
  • W Fisher
  • H E Fisk
  • G Flanagan
  • R Forrest
  • M Fortner
  • H Fox
  • M Franklin
  • J C Freeman
  • H Frisch
  • S Fuess
  • Y Funakoshi
  • C Galloni
  • P H Garbincius
  • A Garcia-Bellido
  • J A García-González
  • A F Garfinkel
  • P Garosi
  • V Gavrilov
  • W Geng
  • C E Gerber
  • H Gerberich
  • E Gerchtein
  • Y Gershtein
  • S Giagu
  • V Giakoumopoulou
  • K Gibson
  • C M Ginsburg
  • G Ginther
  • N Giokaris
  • P Giromini
  • G Giurgiu
  • V Glagolev
  • D Glenzinski
  • M Gold
  • D Goldin
  • A Golossanov
  • G Golovanov
  • G Gomez
  • G Gomez-Ceballos
  • M Goncharov
  • O González López
  • I Gorelov
  • A T Goshaw
  • K Goulianos
  • E Gramellini
  • P D Grannis
  • S Greder
  • H Greenlee
  • G Grenier
  • S Grinstein
  • Ph Gris
  • J-F Grivaz
  • A Grohsjean
  • C Grosso-Pilcher
  • R C Group
  • S Grünendahl
  • M W Grünewald
  • T Guillemin
  • J Guimaraes da Costa
  • G Gutierrez
  • P Gutierrez
  • S R Hahn
  • J Haley
  • J Y Han
  • L Han
  • F Happacher
  • K Hara
  • K Harder
  • M Hare
  • A Harel
  • R F Harr
  • T Harrington-Taber
  • K Hatakeyama
  • J M Hauptman
  • C Hays
  • J Hays
  • T Head
  • T Hebbeker
  • D Hedin
  • H Hegab
  • J Heinrich
  • A P Heinson
  • U Heintz
  • C Hensel
  • I Heredia-De La Cruz
  • M Herndon
  • K Herner
  • G Hesketh
  • M D Hildreth
  • R Hirosky
  • T Hoang
  • J D Hobbs
  • A Hocker
  • B Hoeneisen
  • J Hogan
  • M Hohlfeld
  • J L Holzbauer
  • Z Hong
  • W Hopkins
  • S Hou
  • I Howley
  • Z Hubacek
  • R E Hughes
  • U Husemann
  • M Hussein
  • J Huston
  • V Hynek
  • I Iashvili
  • Y Ilchenko
  • R Illingworth
  • G Introzzi
  • M Iori
  • A S Ito
  • A Ivanov
  • S Jabeen
  • M Jaffré
  • E James
  • D Jang
  • A Jayasinghe
  • B Jayatilaka
  • E J Jeon
  • M S Jeong
  • R Jesik
  • P Jiang
  • S Jindariani
  • K Johns
  • E Johnson
  • M Johnson
  • A Jonckheere
  • M Jones
  • P Jonsson
  • K K Joo
  • J Joshi
  • S Y Jun
  • A W Jung
  • T R Junk
  • A Juste
  • E Kajfasz
  • M Kambeitz
  • T Kamon
  • P E Karchin
  • D Karmanov
  • A Kasmi
  • Y Kato
  • I Katsanos
  • R Kehoe
  • S Kermiche
  • W Ketchum
  • J Keung
  • N Khalatyan
  • A Khanov
  • A Kharchilava
  • Y N Kharzheev
  • B Kilminster
  • D H Kim
  • H S Kim
  • J E Kim
  • M J Kim
  • S H Kim
  • S B Kim
  • Y J Kim
  • Y K Kim
  • N Kimura
  • M Kirby
  • I Kiselevich
  • K Knoepfel
  • J M Kohli
  • K Kondo
  • D J Kong
  • J Konigsberg
  • A V Kotwal
  • A V Kozelov
  • J Kraus
  • M Kreps
  • J Kroll
  • M Kruse
  • T Kuhr
  • A Kumar
  • A Kupco
  • M Kurata
  • T Kurča
  • V A Kuzmin
  • A T Laasanen
  • S Lammel
  • S Lammers
  • M Lancaster
  • K Lannon
  • G Latino
  • P Lebrun
  • H S Lee
  • H S Lee
  • J S Lee
  • S W Lee
  • W M Lee
  • X Lei
  • J Lellouch
  • S Leo
  • S Leone
  • J D Lewis
  • D Li
  • H Li
  • L Li
  • Q Z Li
  • J K Lim
  • A Limosani
  • D Lincoln
  • J Linnemann
  • V V Lipaev
  • E Lipeles
  • R Lipton
  • A Lister
  • H Liu
  • H Liu
  • Q Liu
  • T Liu
  • Y Liu
  • A Lobodenko
  • S Lockwitz
  • A Loginov
  • M Lokajicek
  • R Lopes de Sa
  • D Lucchesi
  • A Lucà
  • J Lueck
  • P Lujan
  • P Lukens
  • R Luna-Garcia
  • G Lungu
  • A L Lyon
  • J Lys
  • R Lysak
  • A K A Maciel
  • R Madar
  • R Madrak
  • P Maestro
  • R Magaña-Villalba
  • S Malik
  • S Malik
  • V L Malyshev
  • G Manca
  • A Manousakis-Katsikakis
  • J Mansour
  • L Marchese
  • F Margaroli
  • P Marino
  • J Martínez-Ortega
  • M Martínez
  • K Matera
  • M E Mattson
  • A Mazzacane
  • P Mazzanti
  • R McCarthy
  • C L McGivern
  • R McNulty
  • A Mehta
  • P Mehtala
  • M M Meijer
  • A Melnitchouk
  • D Menezes
  • P G Mercadante
  • M Merkin
  • C Mesropian
  • A Meyer
  • J Meyer
  • T Miao
  • F Miconi
  • D Mietlicki
  • A Mitra
  • H Miyake
  • S Moed
  • N Moggi
  • N K Mondal
  • C S Moon
  • R Moore
  • M J Morello
  • A Mukherjee
  • M Mulhearn
  • Th Muller
  • P Murat
  • M Mussini
  • J Nachtman
  • Y Nagai
  • J Naganoma
  • E Nagy
  • I Nakano
  • A Napier
  • M Narain
  • R Nayyar
  • H A Neal
  • J P Negret
چکیده

We report the first observation of single-top-quark production in the s channel through the combination of the CDF and D0 measurements of the cross section in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb(-1) per experiment. The measured cross section is σ(s) = 1.29(-0.24)(+0.26) pb. The probability of observing a statistical fluctuation of the background to a cross section of the observed size or larger is 1.8 × 10(-10), corresponding to a significance of 6.3 standard deviations for the presence of an s-channel contribution to the production of single-top quarks.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

تولید کوارک تاپ منفرد به عنوان قیدی برای بوزونW

The existence of a new massive charged gauge boson, known as W’, is proposed by many new physics scenarios. When W’ decays to tb, the final state is very similar to the final state of the s-channel single top production, where W boson is the off-shell mediator to produce the top and bottom quarks. If W’ exists, it can affect the cross section of the SM s-channel single top production, so measur...

متن کامل

Top quark associated production of topcolor pions at hadron colliders

We investigate the associated production of a neutral physical pion with top quarks in the context of topcolor assisted technicolor. We find that single-top associated production does not yield viable rates at either the Tevatron or LHC. tt̄-associated production at the Tevatron is suppressed relative to Standard Model tt̄H, but at the LHC is strongly enhanced and would allow for easy observation...

متن کامل

Search for Single-top Production at the Tevatron

This article reports on recent searches for single-top-quark production by the CDF and DØ collaborations at the Tevatron. Neither two CDF analyses, using data corresponding to 695 pb of integrated luminosity, nor a DØ search based on 370 pb of data can establish a signal for this standard model process. These null results translate in upper limits on the cross section of 2.9 pb for the t-channe...

متن کامل

Search for Single-top-quark Production at the Tevatron

This article reports on recent searches for single-top-quark production by the CDF and DØ collaborations at the Tevatron. Neither two CDF analyses, using data corresponding to 695 pb of integrated luminosity, nor a DØ search based on 370 pb of data can establish a signal for this standard model process. These null results translate in upper limits on the cross section of 2.9 pb for the t-channe...

متن کامل

Looking for Single Top Quarks in Dø Data

The search for the electroweak production of top quarks is entering an exciting time: with the ever increasing luminosity furnished by the Tevatron pp̄ Collider at Fermilab and sophisticated analysis techniques we are now able to approach the expected standard model production cross section for this new mode of production. Using 370 pb of DØ data and likelihoods as discriminants to extract the s...

متن کامل

CP Violation , Top Quarks and the Tevatron Upgrade

In order to observe a signal of possible CP violation in top-quark couplings, we study top-quark production and decay under the conditions of the Tevatron upgrade. Transverse energy asymmetries sensitive to CP violation are defined. Applying the recently proposed optimal method, we calculate the statistical significance for the direct observation of CP violation in the production and subsequent...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review letters

دوره 112 23  شماره 

صفحات  -

تاریخ انتشار 2014