@article{cb54961e1c1544f791e8f99a1000f847,
title = "Search for anomalous couplings in the W tb vertex from the measurement of double differential angular decay rates of single top quarks produced in the t-channel with the ATLAS detector",
abstract = "Abstract: The electroweak production and subsequent decay of single top quarks is determined by the properties of the Wtb vertex. This vertex can be described by the complex parameters of an effective Lagrangian. An analysis of angular distributions of the decay products of single top quarks produced in the t -channel constrains these parameters simultaneously. The analysis described in this paper uses 4.6 fb−1 of proton-proton collision data at (Formula presented.) TeV collected with the ATLAS detector at the LHC. Two parameters are measured simultaneously in this analysis. The fraction f1 of decays containing transversely polarised W bosons is measured to be 0.37 ± 0.07 (stat.⊕syst.). The phase δ− between amplitudes for transversely and longitudinally polarised W bosons recoiling against left-handed b-quarks is measured to be −0.014π ± 0.036π (stat.⊕syst.). The correlation in the measurement of these parameters is 0.15. These values result in two-dimensional limits at the 95% confidence level on the ratio of the complex coupling parameters gR and VL, yielding Re[gR/VL] ∈ [−0.36, 0.10] and Im[gR/VL] ∈ [−0.17, 0.23] with a correlation of 0.11. The results are in good agreement with the predictions of the Standard Model.[Figure not available: see fulltext.]",
keywords = "Hadron-Hadron scattering",
author = "{The ATLAS collaboration} and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and R. Aben and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and Affolder, {A. A.} and T. Agatonovic-Jovin and J. Agricola and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, {T. P.A.} and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Alkire, {S. P.} and Allbrooke, {B. M.M.} and Allport, {P. P.} and A. Aloisio and A. Alonso and F. Alonso and C. Alpigiani and A. Altheimer and {Alvarez Gonzalez}, B. and {{\'A}lvarez Piqueras}, D. and Alviggi, {M. G.} and Amadio, {B. T.} and {Amaral Amako}, K. and Y. Coutinho and C. Amelung and D. Amidei and {Amor Dos Santos}, {S. P.} and A. Amorim and S. Amoroso and N. Amram and G. Amundsen and C. Anastopoulos and Ancu, {L. S.} and N. Andari and T. Andeen and Anders, {C. F.} and G. Anders and Anders, {J. K.} and Anderson, {K. J.} and A. Andreazza and V. Andrei and S. Angelidakis and I. Angelozzi and P. Anger and A. Angerami and F. Anghinolfi and Anisenkov, {A. V.} and N. Anjos and A. Annovi and M. Antonelli and A. Antonov and J. Antos and F. Anulli and M. Aoki and {Aperio Bella}, L. and G. Arabidze and Y. Arai and Araque, {J. P.} and Arce, {A. T.H.} and Arduh, {F. A.} and Arguin, {J. F.} and S. Argyropoulos and M. Arik and Armbruster, {A. J.} and O. Arnaez and H. Arnold and M. Arratia and O. Arslan and A. Artamonov and G. Artoni and S. Asai and N. Asbah and A. Ashkenazi and B. {\AA}sman and L. Asquith and K. Assamagan and R. Astalos and M. Atkinson and Atlay, {N. B.} and K. Augsten and M. Aurousseau and G. Avolio and B. Axen and Ayoub, {M. K.} and G. Azuelos and Baak, {M. A.} and Baas, {A. E.} and Baca, {M. J.} and C. Bacci and H. Bachacou and K. Bachas and M. Backes and M. Backhaus and P. Bagiacchi and P. Bagnaia and Y. Bai and T. Bain and Baines, {J. T.} and Baker, {O. K.} and Baldin, {E. M.} and P. Balek and T. Balestri and F. Balli and Balunas, {W. K.} and E. Banas and Sw Banerjee and Bannoura, {A. A.E.} and L. Barak and Barberio, {E. L.} and D. Barberis and M. Barbero and T. Barillari and M. Barisonzi and T. Barklow and N. Barlow and Barnes, {S. L.} and Barnett, {B. M.} and Barnett, {R. M.} and Z. Barnovska and A. Baroncelli and G. Barone and Barr, {A. J.} and F. Barreiro and {Barreiro Guimar{\~a}es da Costa}, J. and R. Bartoldus and Barton, {A. E.} and P. Bartos and A. Basalaev and A. Bassalat and A. Basye and Bates, {R. L.} and Batista, {S. J.} and Batley, {J. R.} and M. Battaglia and M. Bauce and F. Bauer and Bawa, {H. S.} and Beacham, {J. B.} and Beattie, {M. D.} and T. Beau and Beauchemin, {P. H.} and R. Beccherle and P. Bechtle and Beck, {H. P.} and K. Becker and M. Becker and M. Beckingham and C. Becot and Beddall, {A. J.} and A. Beddall and Bednyakov, {V. A.} and Bee, {C. P.} and Beemster, {L. J.} and Beermann, {T. A.} and M. Begel and Behr, {J. K.} and C. Belanger-Champagne and Bell, {W. H.} and G. Bella and L. Bellagamba and A. Bellerive and M. Bellomo and K. Belotskiy and O. Beltramello and O. Benary and D. Benchekroun and M. Bender and K. Bendtz and N. Benekos and X. Zhao",
note = "Publisher Copyright: {\textcopyright} 2016, The Author(s).",
year = "2016",
month = apr,
day = "1",
doi = "10.1007/JHEP04(2016)023",
language = "English",
volume = "2016",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
number = "4",
}