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Journal Articles Physical Review D Year : 2011

Forward-backward asymmetry in top quark-antiquark production

V.M. Abazov , B. Abbott , B.S. Acharya , M. Adams , T. Adams , G.D. Alexeev , G. Alkhazov , A. Alton , G. Alverson , G.A. Alves , M. Aoki , M. Arov , A. Askew , B. Asman , O. Atramentov , C. Avila , J. Backusmayes , F. Badaud (1) , L. Bagby , B. Baldin , D.V. Bandurin , S. Banerjee , E. Barberis , P. Baringer , J. Barreto , J.F. Bartlett , U. Bassler (2) , V. Bazterra , S. Beale , A. Bean , M. Begalli , M. Begel , C. Belanger-Champagne , L. Bellantoni , S.B. Beri , G. Bernardi (3) , R. Bernhard , I. Bertram , M. Besançon (2) , R. Beuselinck , V.A. Bezzubov , P.C. Bhat , V. Bhatnagar , G. Blazey , S. Blessing , K. Bloom , A. Boehnlein , D. Boline , E.E. Boos , G. Borissov , T. Bose , A. Brandt , O. Brandt , R. Brock , G. Brooijmans , A. Bross , D. Brown (3) , J. Brown (3) , X.B. Bu , M. Buehler , V. Buescher , V. Bunichev , S. Burdin , T.H. Burnett , C.P. Buszello , B. Calpas (4) , E. Camacho-Pérez , M.A. Carrasco-Lizarraga , B.C.K. Casey , H. Castilla-Valdez , S. Chakrabarti , D. Chakraborty , K.M. Chan , A. Chandra , G. Chen , S. Chevalier-Théry (2) , D.K. Cho , S.W. Cho , S. K. Choi , B. Choudhary , S. Cihangir , D. Claes , J. Clutter , M. Cooke , W.E. Cooper , M. Corcoran , F. Couderc (2) , M.-C. Cousinou (4) , A. Croc (2) , D. Cutts , A. Das , G. Davies , K. De , S.J. de Jong , E. de La Cruz-Burelo , F. Déliot (2) , M. Demarteau , R. Demina , D. Denisov , S.P. Denisov , S. Desai , C. Deterre (2) , K. Devaughan , H.T. Diehl , M. Diesburg , P.F. Ding , A. Dominguez , T. Dorland , A. Dubey , L.V. Dudko , D. Duggan , A. Duperrin (4) , S. Dutt , A. Dyshkant , M. Eads , D. Edmunds , J. Ellison , V.D. Elvira , Y. Enari (3) , H. Evans , A. Evdokimov , V.N. Evdokimov , G. Facini , T. Ferbel , F. Fiedler , F. Filthaut , W. Fisher , H.E. Fisk , M. Fortner , H. Fox , S. Fuess , A. Garcia-Bellido , V. Gavrilov , Pascal Gay (1) , W. Geng (4) , D. Gerbaudo , C.E. Gerber , Y. Gershtein , G. Ginther , G. Golovanov , A. Goussiou , P.D. Grannis , S. Greder (5) , H. Greenlee , Z.D. Greenwood , E.M. Gregores , G. Grenier (6) , Ph. Gris (1) , J.-F. Grivaz (7) , A. Grohsjean (2) , S. Grünendahl , M.W. Grünewald , T. Guillemin (7) , F. Guo , G. Gutierrez , P. Gutierrez , A. Haas , S. Hagopian , J. Haley , L. Han , K. Harder , A. Harel , J.M. Hauptman , J. Hays , T. Head , T. Hebbeker , D. Hedin , H. Hegab , A.P. Heinson , U. Heintz , C. Hensel , I. Heredia-de La Cruz , K. Herner , G. Hesketh , M.D. Hildreth , R. Hirosky , T. Hoang , J.D. Hobbs , B. Hoeneisen , M. Hohlfeld , Z. Hubacek (2) , N. Huske (3) , V. Hynek , I. Iashvili , Y. Ilchenko , R. Illingworth , A.S. Ito , S. Jabeen , M. Jaffré (7) , D. Jamin (4) , A. Jayasinghe , R. Jesik , K. Johns , M. Johnson , D. Johnston , A. Jonckheere , P. Jonsson , J. Joshi , A.W. Jung , A. Juste , K. Kaadze , E. Kajfasz (4) , D. Karmanov , P.A. Kasper , I. Katsanos , R. Kehoe , S. Kermiche (4) , N. Khalatyan , A. Khanov , A. Kharchilava , Y.N. Kharzheev , M.H. Kirby , J.M. Kohli , A.V. Kozelov , J. Kraus , S. Kulikov , A. Kumar , A. Kupco , T. Kurca (6) , V.A. Kuzmin , J. Kvita , S. Lammers , G. Landsberg , P. Lebrun (6) , H.S. Lee , S.W. Lee , W.M. Lee , J. Lellouch (3) , L. Li , Q.Z. Li , S.M. Lietti , J.K. Lim , D. Lincoln , J. Linnemann , V.V. Lipaev , R. Lipton , Y. Liu , Z. Liu , A. Lobodenko , M. Lokajicek , R. Lopes de Sa , H.J. Lubatti , R. Luna-Garcia , A.L. Lyon , A.K.A. Maciel , D. Mackin , R. Madar (2) , R. Magana-Villalba , S. Malik , V.L. Malyshev , Y. Maravin , J. Martinez-Ortega , R. Mccarthy , C.L. Mcgivern , M.M. Meijer , A. Melnitchouk , D. Menezes , P.G. Mercadante , M. Merkin , A. Meyer , J. Meyer , F. Miconi (5) , N.K. Mondal , G.-S. Muanza (4) , M. Mulhearn , E. Nagy (4) , M. Naimuddin , M. Narain , R. Nayyar , H.A. Neal , J.P. Negret , P. Neustroev , S.F. Novaes , T. Nunnemann , G. Obrant , D. Orbaker , J. Orduna , N. Osman (4) , J. Osta , G.J. Otero y Garzon , M. Padilla , A. Pal , N. Parashar , V. Parihar , S.K. Park , J. Parsons , R. Partridge , N. Parua , A. Patwa , B. Penning , M. Perfilov , K. Peters , Y. Peters , K. Petridis , G. Petrillo , P. Pétroff (7) , R. Piegaia , M.-A. Pleier , P.L.M. Podesta-Lerma , V.M. Podstavkov , P. Polozov , A.V. Popov , M. Prewitt , D. Price , N. Prokopenko , S. Protopopescu , J. Qian , A. Quadt , B. Quinn , M.S. Rangel , K. Ranjan , P.N. Ratoff , I. Razumov , P. Renkel , M. Rijssenbeek , I. Ripp-Baudot (5) , F. Rizatdinova , M. Rominsky , A. Ross , C. Royon (2) , P. Rubinov , R. Ruchti , G. Safronov , G. Sajot (8) , P. Salcido , A. Sanchez-Hernandez , M.P. Sanders , B. Sanghi , A.S. Santos , G. Savage , L. Sawyer , T. Scanlon , R.D. Schamberger , Y. Scheglov , H. Schellman , T. Schliephake , S. Schlobohm , C. Schwanenberger , R. Schwienhorst , J. Sekaric , H. Severini , E. Shabalina , V. Shary (2) , A.A. Shchukin , R.K. Shivpuri , V. Simak , V. Sirotenko , P. Skubic , P. Slattery , D. Smirnov , K.J. Smith , G.R. Snow , J. Snow , S. Snyder , S. Söldner-Rembold , L. Sonnenschein , K. Soustruznik , J. Stark (8) , V. Stolin , D.A. Stoyanova , M. Strauss , D. Strom , L. Stutte , L. Suter , P. Svoisky , M. Takahashi , A. Tanasijczuk , W. Taylor , M. Titov (2) , V.V. Tokmenin , Y.-T. Tsai , D. Tsybychev , B. Tuchming (2) , C. Tully , L. Uvarov , S. Uvarov , S. Uzunyan , R. van Kooten , W.M. van Leeuwen , N. Varelas , E.W. Varnes , I.A. Vasilyev , P. Verdier (6) , L.S. Vertogradov , M. Verzocchi , M. Vesterinen , D. Vilanova (2) , P. Vokac , H.D. Wahl , M.H.L.S. Wang , J. Warchol , G. Watts , M. Wayne , M. Weber , L. Welty-Rieger , A. White , D. Wicke , M.R.J. Williams , G.W. Wilson , M. Wobisch , D.R. Wood , T.R. Wyatt , Y. Xie , C. Xu , S. Yacoob , R. Yamada , W.-C. Yang , T. Yasuda , Y.A. Yatsunenko , Z. Ye , H. Yin , K. Yip , S.W. Youn , J. Yu , S. Zelitch , T. Zhao , B. Zhou , J. Zhu , M. Zielinski , D. Zieminska , L. Zivkovic
V.M. Abazov
  • Function : Author
B. Abbott
  • Function : Author
B.S. Acharya
  • Function : Author
M. Adams
  • Function : Author
T. Adams
  • Function : Author
G.D. Alexeev
  • Function : Author
G. Alkhazov
  • Function : Author
A. Alton
  • Function : Author
G. Alverson
  • Function : Author
G.A. Alves
  • Function : Author
M. Aoki
  • Function : Author
M. Arov
  • Function : Author
A. Askew
  • Function : Author
B. Asman
  • Function : Author
O. Atramentov
  • Function : Author
C. Avila
  • Function : Author
J. Backusmayes
  • Function : Author
L. Bagby
  • Function : Author
B. Baldin
  • Function : Author
D.V. Bandurin
  • Function : Author
S. Banerjee
  • Function : Author
E. Barberis
  • Function : Author
P. Baringer
  • Function : Author
J. Barreto
  • Function : Author
J.F. Bartlett
  • Function : Author
V. Bazterra
  • Function : Author
S. Beale
  • Function : Author
A. Bean
  • Function : Author
M. Begalli
  • Function : Author
M. Begel
  • Function : Author
C. Belanger-Champagne
  • Function : Author
L. Bellantoni
  • Function : Author
S.B. Beri
  • Function : Author
R. Bernhard
  • Function : Author
I. Bertram
  • Function : Author
R. Beuselinck
  • Function : Author
V.A. Bezzubov
  • Function : Author
P.C. Bhat
  • Function : Author
V. Bhatnagar
  • Function : Author
G. Blazey
  • Function : Author
S. Blessing
  • Function : Author
K. Bloom
  • Function : Author
A. Boehnlein
  • Function : Author
D. Boline
  • Function : Author
E.E. Boos
  • Function : Author
G. Borissov
  • Function : Author
T. Bose
  • Function : Author
A. Brandt
  • Function : Author
O. Brandt
  • Function : Author
R. Brock
  • Function : Author
G. Brooijmans
  • Function : Author
A. Bross
  • Function : Author
X.B. Bu
  • Function : Author
M. Buehler
  • Function : Author
V. Buescher
  • Function : Author
V. Bunichev
  • Function : Author
S. Burdin
  • Function : Author
T.H. Burnett
  • Function : Author
C.P. Buszello
  • Function : Author
E. Camacho-Pérez
  • Function : Author
M.A. Carrasco-Lizarraga
  • Function : Author
B.C.K. Casey
  • Function : Author
H. Castilla-Valdez
  • Function : Author
S. Chakrabarti
  • Function : Author
D. Chakraborty
  • Function : Author
K.M. Chan
  • Function : Author
A. Chandra
  • Function : Author
G. Chen
  • Function : Author
D.K. Cho
  • Function : Author
S.W. Cho
  • Function : Author
S. K. Choi
  • Function : Author
B. Choudhary
  • Function : Author
S. Cihangir
  • Function : Author
D. Claes
  • Function : Author
J. Clutter
  • Function : Author
M. Cooke
  • Function : Author
W.E. Cooper
  • Function : Author
M. Corcoran
  • Function : Author
D. Cutts
  • Function : Author
A. Das
  • Function : Author
G. Davies
  • Function : Author
K. De
  • Function : Author
S.J. de Jong
  • Function : Author
E. de La Cruz-Burelo
  • Function : Author
M. Demarteau
  • Function : Author
R. Demina
  • Function : Author
D. Denisov
  • Function : Author
S.P. Denisov
  • Function : Author
S. Desai
  • Function : Author
K. Devaughan
  • Function : Author
H.T. Diehl
  • Function : Author
M. Diesburg
  • Function : Author
P.F. Ding
  • Function : Author
A. Dominguez
  • Function : Author
T. Dorland
  • Function : Author
A. Dubey
  • Function : Author
L.V. Dudko
  • Function : Author
D. Duggan
  • Function : Author
S. Dutt
  • Function : Author
A. Dyshkant
  • Function : Author
M. Eads
  • Function : Author
D. Edmunds
  • Function : Author
J. Ellison
  • Function : Author
V.D. Elvira
  • Function : Author
H. Evans
  • Function : Author
A. Evdokimov
  • Function : Author
V.N. Evdokimov
  • Function : Author
G. Facini
  • Function : Author
T. Ferbel
  • Function : Author
F. Fiedler
  • Function : Author
F. Filthaut
  • Function : Author
W. Fisher
  • Function : Author
H.E. Fisk
  • Function : Author
M. Fortner
  • Function : Author
H. Fox
  • Function : Author
S. Fuess
  • Function : Author
A. Garcia-Bellido
  • Function : Author
V. Gavrilov
  • Function : Author
D. Gerbaudo
  • Function : Author
C.E. Gerber
  • Function : Author
Y. Gershtein
  • Function : Author
G. Ginther
  • Function : Author
G. Golovanov
  • Function : Author
A. Goussiou
  • Function : Author
P.D. Grannis
  • Function : Author
H. Greenlee
  • Function : Author
Z.D. Greenwood
  • Function : Author
E.M. Gregores
  • Function : Author
S. Grünendahl
  • Function : Author
M.W. Grünewald
  • Function : Author
F. Guo
  • Function : Author
G. Gutierrez
  • Function : Author
P. Gutierrez
  • Function : Author
A. Haas
  • Function : Author
S. Hagopian
  • Function : Author
J. Haley
  • Function : Author
L. Han
  • Function : Author
K. Harder
  • Function : Author
A. Harel
  • Function : Author
J.M. Hauptman
  • Function : Author
J. Hays
  • Function : Author
T. Head
  • Function : Author
T. Hebbeker
  • Function : Author
D. Hedin
  • Function : Author
H. Hegab
  • Function : Author
A.P. Heinson
  • Function : Author
U. Heintz
  • Function : Author
C. Hensel
  • Function : Author
I. Heredia-de La Cruz
  • Function : Author
K. Herner
  • Function : Author
G. Hesketh
  • Function : Author
M.D. Hildreth
  • Function : Author
R. Hirosky
  • Function : Author
T. Hoang
  • Function : Author
J.D. Hobbs
  • Function : Author
B. Hoeneisen
  • Function : Author
M. Hohlfeld
  • Function : Author
V. Hynek
  • Function : Author
I. Iashvili
  • Function : Author
Y. Ilchenko
  • Function : Author
R. Illingworth
  • Function : Author
A.S. Ito
  • Function : Author
S. Jabeen
  • Function : Author
A. Jayasinghe
  • Function : Author
R. Jesik
  • Function : Author
K. Johns
  • Function : Author
M. Johnson
  • Function : Author
D. Johnston
  • Function : Author
A. Jonckheere
  • Function : Author
P. Jonsson
  • Function : Author
J. Joshi
A.W. Jung
  • Function : Author
A. Juste
  • Function : Author
K. Kaadze
  • Function : Author
E. Kajfasz
D. Karmanov
  • Function : Author
P.A. Kasper
  • Function : Author
I. Katsanos
  • Function : Author
R. Kehoe
  • Function : Author
N. Khalatyan
  • Function : Author
A. Khanov
  • Function : Author
A. Kharchilava
  • Function : Author
Y.N. Kharzheev
  • Function : Author
M.H. Kirby
  • Function : Author
J.M. Kohli
  • Function : Author
A.V. Kozelov
  • Function : Author
J. Kraus
  • Function : Author
S. Kulikov
  • Function : Author
A. Kumar
  • Function : Author
A. Kupco
  • Function : Author
V.A. Kuzmin
  • Function : Author
J. Kvita
  • Function : Author
S. Lammers
  • Function : Author
G. Landsberg
  • Function : Author
H.S. Lee
  • Function : Author
S.W. Lee
  • Function : Author
W.M. Lee
  • Function : Author
L. Li
  • Function : Author
Q.Z. Li
  • Function : Author
S.M. Lietti
  • Function : Author
J.K. Lim
  • Function : Author
D. Lincoln
  • Function : Author
J. Linnemann
  • Function : Author
V.V. Lipaev
  • Function : Author
R. Lipton
  • Function : Author
Y. Liu
  • Function : Author
Z. Liu
  • Function : Author
A. Lobodenko
  • Function : Author
M. Lokajicek
  • Function : Author
R. Lopes de Sa
  • Function : Author
H.J. Lubatti
  • Function : Author
R. Luna-Garcia
  • Function : Author
A.L. Lyon
  • Function : Author
A.K.A. Maciel
  • Function : Author
D. Mackin
  • Function : Author
R. Magana-Villalba
  • Function : Author
S. Malik
  • Function : Author
V.L. Malyshev
  • Function : Author
Y. Maravin
  • Function : Author
J. Martinez-Ortega
  • Function : Author
R. Mccarthy
  • Function : Author
C.L. Mcgivern
  • Function : Author
M.M. Meijer
  • Function : Author
A. Melnitchouk
  • Function : Author
D. Menezes
  • Function : Author
P.G. Mercadante
  • Function : Author
M. Merkin
  • Function : Author
A. Meyer
  • Function : Author
J. Meyer
  • Function : Author
N.K. Mondal
  • Function : Author
M. Mulhearn
  • Function : Author
M. Naimuddin
  • Function : Author
M. Narain
  • Function : Author
R. Nayyar
  • Function : Author
H.A. Neal
  • Function : Author
J.P. Negret
  • Function : Author
P. Neustroev
  • Function : Author
S.F. Novaes
  • Function : Author
T. Nunnemann
  • Function : Author
G. Obrant
  • Function : Author
D. Orbaker
  • Function : Author
J. Orduna
  • Function : Author
J. Osta
  • Function : Author
G.J. Otero y Garzon
  • Function : Author
M. Padilla
  • Function : Author
A. Pal
  • Function : Author
N. Parashar
  • Function : Author
V. Parihar
  • Function : Author
S.K. Park
  • Function : Author
J. Parsons
  • Function : Author
R. Partridge
  • Function : Author
N. Parua
  • Function : Author
A. Patwa
  • Function : Author
B. Penning
  • Function : Author
M. Perfilov
  • Function : Author
K. Peters
  • Function : Author
Y. Peters
  • Function : Author
K. Petridis
  • Function : Author
G. Petrillo
  • Function : Author
R. Piegaia
  • Function : Author
M.-A. Pleier
  • Function : Author
P.L.M. Podesta-Lerma
  • Function : Author
V.M. Podstavkov
  • Function : Author
P. Polozov
  • Function : Author
A.V. Popov
  • Function : Author
M. Prewitt
  • Function : Author
D. Price
  • Function : Author
N. Prokopenko
  • Function : Author
S. Protopopescu
  • Function : Author
J. Qian
  • Function : Author
A. Quadt
  • Function : Author
B. Quinn
  • Function : Author
M.S. Rangel
  • Function : Author
K. Ranjan
  • Function : Author
P.N. Ratoff
  • Function : Author
I. Razumov
  • Function : Author
P. Renkel
  • Function : Author
M. Rijssenbeek
  • Function : Author
F. Rizatdinova
  • Function : Author
M. Rominsky
  • Function : Author
A. Ross
  • Function : Author
P. Rubinov
  • Function : Author
R. Ruchti
  • Function : Author
G. Safronov
  • Function : Author
P. Salcido
  • Function : Author
A. Sanchez-Hernandez
  • Function : Author
M.P. Sanders
  • Function : Author
B. Sanghi
  • Function : Author
A.S. Santos
  • Function : Author
G. Savage
  • Function : Author
L. Sawyer
  • Function : Author
T. Scanlon
  • Function : Author
R.D. Schamberger
  • Function : Author
Y. Scheglov
  • Function : Author
H. Schellman
  • Function : Author
T. Schliephake
  • Function : Author
S. Schlobohm
  • Function : Author
C. Schwanenberger
  • Function : Author
R. Schwienhorst
  • Function : Author
J. Sekaric
  • Function : Author
H. Severini
  • Function : Author
E. Shabalina
  • Function : Author
A.A. Shchukin
  • Function : Author
R.K. Shivpuri
  • Function : Author
V. Simak
  • Function : Author
V. Sirotenko
  • Function : Author
P. Skubic
  • Function : Author
P. Slattery
  • Function : Author
D. Smirnov
  • Function : Author
K.J. Smith
  • Function : Author
G.R. Snow
  • Function : Author
J. Snow
  • Function : Author
S. Snyder
  • Function : Author
S. Söldner-Rembold
  • Function : Author
L. Sonnenschein
  • Function : Author
K. Soustruznik
  • Function : Author
V. Stolin
  • Function : Author
D.A. Stoyanova
  • Function : Author
M. Strauss
  • Function : Author
D. Strom
  • Function : Author
L. Stutte
  • Function : Author
L. Suter
  • Function : Author
P. Svoisky
  • Function : Author
M. Takahashi
A. Tanasijczuk
  • Function : Author
W. Taylor
  • Function : Author
V.V. Tokmenin
  • Function : Author
Y.-T. Tsai
  • Function : Author
D. Tsybychev
  • Function : Author
C. Tully
  • Function : Author
L. Uvarov
  • Function : Author
S. Uvarov
  • Function : Author
S. Uzunyan
  • Function : Author
R. van Kooten
  • Function : Author
W.M. van Leeuwen
  • Function : Author
N. Varelas
  • Function : Author
E.W. Varnes
  • Function : Author
I.A. Vasilyev
  • Function : Author
P. Verdier
L.S. Vertogradov
  • Function : Author
M. Verzocchi
  • Function : Author
M. Vesterinen
  • Function : Author
P. Vokac
  • Function : Author
H.D. Wahl
  • Function : Author
M.H.L.S. Wang
  • Function : Author
J. Warchol
  • Function : Author
G. Watts
  • Function : Author
M. Wayne
  • Function : Author
M. Weber
  • Function : Author
L. Welty-Rieger
  • Function : Author
A. White
  • Function : Author
D. Wicke
  • Function : Author
M.R.J. Williams
  • Function : Author
G.W. Wilson
  • Function : Author
M. Wobisch
  • Function : Author
D.R. Wood
  • Function : Author
T.R. Wyatt
  • Function : Author
Y. Xie
  • Function : Author
C. Xu
  • Function : Author
S. Yacoob
  • Function : Author
R. Yamada
  • Function : Author
W.-C. Yang
  • Function : Author
T. Yasuda
  • Function : Author
Y.A. Yatsunenko
  • Function : Author
Z. Ye
  • Function : Author
H. Yin
  • Function : Author
K. Yip
  • Function : Author
S.W. Youn
  • Function : Author
J. Yu
  • Function : Author
S. Zelitch
  • Function : Author
T. Zhao
  • Function : Author
B. Zhou
  • Function : Author
J. Zhu
  • Function : Author
M. Zielinski
  • Function : Author
D. Zieminska
  • Function : Author
L. Zivkovic
  • Function : Author

Abstract

We present a measurement of forward-backward asymmetry in top quark-antiquark production in proton-antiproton collisions in the final state containing a lepton and at least four jets. Using a dataset corresponding to an integrated luminosity of $5.4\,\mathrm {fb}^{-1}$, collected by the \DZ\ experiment at the Fermilab Tevatron Collider, we measure the \ttbar\ forward-backward asymmetry to be $(9.2 \pm 3.7)$% at the reconstruction level. When corrected for detector acceptance and resolution, the asymmetry is found to be $(19.6 \pm 6.5)$%. We also measure a corrected asymmetry based on the lepton from a top quark decay, found to be $(15.2 \pm 4.0)$%. The results are compared to predictions based on the next-to-leading-order QCD generator {\sc mc@nlo}. The sensitivity of the measured and predicted asymmetries to the modeling of gluon radiation is discussed.
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Dates and versions

in2p3-00611263 , version 1 (23-11-2023)

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V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, et al.. Forward-backward asymmetry in top quark-antiquark production. Physical Review D, 2011, 84, pp.112005. ⟨10.1103/PhysRevD.84.112005⟩. ⟨in2p3-00611263⟩
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