Single top-quark production with SHERPA

被引：12
|
作者：
Bothmann, Enrico [1 ]
Krauss, Frank [2 ]
Schonherr, Marek [3 ]
机构：
[1] Univ Edinburgh, Higgs Ctr Theoret Phys, Edinburgh EH9 3FD, Midlothian, Scotland
[2] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
[3] CERN, Theoret Phys Dept, CH-1211 Geneva 23, Switzerland
来源：
EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 03期
关键词：
JET CROSS-SECTIONS; QCD CORRECTIONS; MATRIX-ELEMENT; COLLISIONS; CHANNEL; MODEL; PAIR; LHC; TEV;
D O I：
10.1140/epjc/s10052-018-5696-1
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present results at next-to-leading order accuracy in QCD for single top-quark production in the t, s and tW channels at the LHC at a centre-of-mass energy of 8TeV, obtained with the SHERPA event generator. We find them in very good agreement with measured values and quantify their theory uncertainties. Uncertainties stemming from the choice between the four- and the five-flavour scheme are found to be typically of the order of 5-10% over large ranges of phase space. We discuss the impact of parton distribution functions, and in particular of the bottom PDF. We also show how different cuts on QCD radiation patterns improve the signal-to-background ratio in realistic fiducial volumes.
引用
收藏
页数：13
相关论文
共 50 条
  • [1] Single top-quark production with sherpa
    Enrico Bothmann
    Frank Krauss
    Marek Schönherr
    [J]. The European Physical Journal C, 2018, 78
  • [2] Observation of Single Top-Quark Production
    Abazov, V. M.
    Abbott, B.
    Abolins, M.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Aguilo, E.
    Ahsan, M.
    Alexeev, G. D.
    Alkhazov, G.
    Alton, A.
    Alverson, G.
    Alves, G. A.
    Ancu, L. S.
    Andeen, T.
    Anzelc, M. S.
    Aoki, M.
    Arnoud, Y.
    Arov, M.
    Arthaud, M.
    Askew, A.
    Asman, B.
    Atramentov, O.
    Avila, C.
    BackusMayes, J.
    Badaud, F.
    Bagby, L.
    Baldin, B.
    Bandurin, D. V.
    Banerjee, P.
    Banerjee, S.
    Barberis, E.
    Barfuss, A. -F.
    Bargassa, P.
    Baringer, P.
    Barreto, J.
    Bartlett, J. F.
    Bassler, U.
    Bauer, D.
    Beale, S.
    Bean, A.
    Begalli, M.
    Begel, M.
    Belanger-Champagne, C.
    Bellantoni, L.
    Bellavance, A.
    Benitez, J. A.
    Beri, S. B.
    Bernardi, G.
    Bernhard, R.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 103 (09)
  • [3] Studies of top-quark properties and search for electroweak single top-quark production at the Tevatron
    Datta, Mousumi
    [J]. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2008, 177 : 16 - 21
  • [4] Measurement of Top Quark Properties in Single Top-Quark Production at CMS
    Yazgan, Efe
    [J]. NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 2016, 273 : 2142 - 2147
  • [5] HATHOR for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions
    Kant, P.
    Kind, O. M.
    Kintscher, T.
    Lohse, T.
    Martini, T.
    Moelbitz, S.
    Rieck, P.
    Uwer, P.
    [J]. COMPUTER PHYSICS COMMUNICATIONS, 2015, 191 : 74 - 89
  • [6] Single top-quark production at the Tevatron and the LHC
    Giammanco, Andrea
    Schwienhorst, Reinhard
    [J]. REVIEWS OF MODERN PHYSICS, 2018, 90 (03)
  • [7] Observation of Electroweak Single Top-Quark Production
    Aaltonen, T.
    Adelman, J.
    Akimoto, T.
    Alvarez Gonzalez, B.
    Amerio, S.
    Amidei, D.
    Anastassov, A.
    Annovi, A.
    Antos, J.
    Apollinari, G.
    Apresyan, A.
    Arisawa, T.
    Artikov, A.
    Ashmanskas, W.
    Attal, A.
    Aurisano, A.
    Azfar, F.
    Badgett, W.
    Barbaro-Galtieri, A.
    Barnes, V. E.
    Barnett, B. A.
    Barria, P.
    Bartsch, V.
    Bauer, G.
    Beauchemin, P. -H.
    Bedeschi, F.
    Beecher, D.
    Behari, S.
    Bellettini, G.
    Bellinger, J.
    Benjamin, D.
    Beretvas, A.
    Beringer, J.
    Bhatti, A.
    Binkley, M.
    Bisello, D.
    Bizjak, I.
    Blair, R. E.
    Blocker, C.
    Blumenfeld, B.
    Bocci, A.
    Bodek, A.
    Boisvert, V.
    Bolla, G.
    Bortoletto, D.
    Boudreau, J.
    Boveia, A.
    Brau, B.
    Bridgeman, A.
    Brigliadori, L.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 103 (09)
  • [8] New gauge interactions and single top-quark production
    [J]. Physical Review D Particles, Fields, Gravitation and Cosmology, 55 (09):
  • [9] SINGLE TOP-QUARK PRODUCTION AT LEP200
    BOOS, E
    SACHWITZ, M
    SCHREIBER, HJ
    SHICHANIN, S
    PUKHOV, A
    ILYIN, V
    ISHIKAWA, T
    KANEKO, T
    KAWABATA, S
    KURIHARA, Y
    SHIMIZU, Y
    TANAKA, H
    [J]. PHYSICS LETTERS B, 1994, 326 (1-2) : 190 - 196
  • [10] Single top-quark production measurements with ATLAS at the LHC
    Lleres, A.
    [J]. HCP 2012 - HADRON COLLIDER PHYSICS SYMPOSIUM 2012, 2013, 49
12345