1.
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Vector Boson + Jets with BlackHat and SHERPA
/ Berger, C F (MIT) ; Bern, Z (UCLA) ; Dixon, L J (UCLA) ; Cordero Febres, F (SLAC ; Stanford U.) ; Forde, D (CERN ; NIKHEF, Amsterdam) ; Gleisberg, T (SLAC ; Stanford U.) ; Ita, H (UCLA) ; Kosower, D A (Saclay, SPhT) ; Maitre, D (Durham U.)
We review recent NLO QCD results for W,Z + 3-jet production at hadron colliders, computed using BlackHat and SHERPA. We also include some new results for Z + 3-jet production at the LHC at 7 TeV. [...]
arXiv:1005.3728; SLAC-PUB-14105; UCLA-10-TEP-104; MIT-CTP 4150; SB-F-380-10; IPPP-10-34; SACLAY IPHT-T10-065; NIKHEF-2010-013; CERN-PH-TH-2010-109.-
2010 - 6 p.
- Published in : Nucl. Phys. B, Proc. Suppl. 205-206 (2010) 92-97
External link: Preprint
In : 10th DESY workshop on elementary particle theory: loops and legs in quantum field theory, Wörlitz, Germany, 25 - 30 Apr 2010, pp.92-97
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2.
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Precise Predictions for W + 4 Jet Production at the Large Hadron Collider
/ Berger, C F (MIT, LNS) ; Bern, Z (UCLA) ; Dixon, Lance J (CERN ; SLAC) ; Cordero, F Febres (Simon Bolivar U.) ; Forde, D (CERN ; NIKHEF, Amsterdam) ; Gleisberg, T (SLAC) ; Ita, H (UCLA) ; Kosower, D A (Saclay, SPhT) ; Maitre, D (Durham U.)
We present the first next-to-leading order QCD results for W + 4-jet production at hadron colliders. Total cross sections, as well as distributions in the jet transverse momenta and in the total transverse energy H_T are provided for the initial LHC energy of \sqrt{s} = 7 TeV. [...]
arXiv:1009.2338; SB-F-385-10; UCLA-10-TEP-106; SLAC-PUB-14222; MIT CTP-4169; IPPP-10-68; SACLAY IPHT-T10-111; NIKHEF-2010-022; CERN-PH-TH-2010-184.-
2011
- Published in : Phys. Rev. Lett. 106 (2011) 092001
APS Published version, local copy: PDF; External link: Preprint
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3.
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Next-to-Leading Order {QCD} Predictions for $Z, \gamma^*$ + 3-Jet Distributions at the Tevatron
/ Berger, C.F. (MIT, LNS) ; Bern, Z. (UCLA) ; Dixon, Lance J. (SLAC) ; Febres Cordero, F. (Simon Bolivar U.) ; Forde, D. (CERN ; NIKHEF, Amsterdam) ; Gleisberg, T. (SLAC) ; Ita, H. (UCLA) ; Kosower, D.A. (DAPNIA, Saclay) ; Maitre, D. (Durham U.)
Using BlackHat in conjunction with SHERPA, we have computed next-to-leading order QCD predictions for a variety of distributions in Z,gamma*+1,2,3-jet production at the Tevatron, where the Z boson or off-shell photon decays into an electron-positron pair. We find good agreement between the NLO results for jet p_T distributions and measurements by CDF and D0. [...]
arXiv:1004.1659; SLAC--PUB--13954; UCLA-10-TEP-101; MIT-CTP 4117; SB-F-379-10; IPPP-10-13; SACLAY IPHT--T10-040; NIKHEF-2010-004; CERN-PH-TH-2010-029.-
2010 - 50 p.
- Published in : Phys. Rev. D 82 (2010) 074002
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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4.
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Next-to-Leading Order Jet Physics with BlackHat
/ Berger, C F (MIT, LNS) ; Bern, Z (UCLA) ; Dixon, L J (SLAC) ; Cordero, F Febres (Simon Bolivar U.) ; Forde, D (CERN ; NIKHEF, Amsterdam) ; Gleisberg, T (SLAC) ; Ita, H (UCLA) ; Kosower, D A (DAPNIA, Sacaly) ; Maitre, D (Durham U.)
We present several results obtained using the BlackHat next-to-leading order QCD program library, in conjunction with SHERPA. In particular, we present distributions for vector boson plus 1,2,3-jet production at the Tevatron and at the asymptotic running energy of the Large Hadron Collider, including new Z+3-jet distributions. [...]
arXiv:0912.4927; SLAC-PUB-13868; IPPP-09-96; MIT-CTP-4095; SB-F-371-09; UCLA-TEP-09-202.-
2009
- Published in : PoS RADCOR2009 (2009) 002
Published Version from PoS: PDF; External link: Preprint
In : 9th International Symposium On Radiative Corrections : applications Of Quantum Field Theory To Phenomenology, Ascona, Switzerland, 25 Oct - 30 Oct 2009, pp.002
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5.
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NLO vector boson production with light jets
/ Bern, Z. (UCLA) ; Diana, G. (IPhT, Saclay) ; Dixon, L.J. (SLAC) ; Febres Cordero, F. (Simon Bolivar U.) ; Forde, D. (CERN ; NIKHEF, Amsterdam) ; Gleisberg, T. (SLAC) ; Hoeche, S. (SLAC) ; Ita, H. (UCLA ; Bohr Inst.) ; Kosower, D.A. (IPhT, Saclay) ; Maitre, D. (CERN ; Durham U., IPPP) et al.
In this contribution we present recent progress in the computation of next-to-leading order (NLO) QCD corrections for the production of an electroweak vector boson in association with jets at hadron colliders. We focus on results obtained using the virtual matrix element library BLACKHAT in conjunction with SHERPA, focusing on results relevant to understanding the background to top production..
arXiv:1201.5288; UCLA-12-TEP-101; SLAC-PUB-14855; CERN-PH-TH-2012-013; IPPP-12-02; UCLA/12/TEP/101; SLAC-PUB-14855; CERN-PH-TH/2012/013; IPPP/12/02; UCLA-12-TEP-101; SLAC-PUB-14855; CERN-PH-TH-2012-013; IPPP-12-02.-
2012 - 4 p.
- Published in : Nuovo Cimento C: 035 (2012) , no. 3, pp. 25-28
Fulltext: PDF; External link: SLAC Document Server
In : 4th International Workshop on Top Quark Physics, Sant Feliu de Guixols, Spain, 25 - 30 Sep 2011, pp.25-28
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6.
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High multiplicity processes at NLO with BlackHat and Sherpa
/ Bern, Zvi (UCLA) ; Ozeren, Kemal (UCLA) ; Dixon, Lance J (SLAC) ; Hoeche, Stefan (SLAC) ; Cordero, Fernando Febres (Simon Bolivar U.) ; Ita, Harald (Freiburg U.) ; Kosower, David (Saclay, SPhT) ; Maître, Daniel (Durham U. ; CERN)
In this contribution we review recent progress with fixed-order QCD predictions for the production of a vector boson in association with jets at hadron colliders, using the programs BlackHat and SHERPA. We review general features of next-to-leading-order (NLO) predictions for the production of a massive vector boson in association with four jets. [...]
arXiv:1210.6684; UCLA-12-TEP-107; SLAC–PUB–15627; SB-F-413-12; IPPP-12-76; LPN12-117; CERN-PH-TH-2012-279.-
2012
- Published in : PoS LL2012 (2012) 018
External link: Preprint
In : 11th DESY Workshop on Elementary Particle Physics: Loops and Legs in Quantum Field Theory, Wernigerode, Germany, 15 - 20 Apr 2012, pp.018
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7.
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Missing Energy and Jets for Supersymmetry Searches
/ Bern, Z (UCLA) ; Diana, G (IPhT, Saclay) ; Dixon, L J (SLAC) ; Cordero, F Febres (Simon Bolivar U.) ; Hoeche, S (SLAC) ; Ita, H (UCLA ; Bohr Inst.) ; Kosower, D A (IPhT, Saclay) ; Maitre, D (CERN ; Durham U.) ; Ozeren, K J (UCLA)
We extend our investigation of backgrounds to new physics signals, following CMS's data-driven search for supersymmetry at the LHC. The aim is to use different sets of cuts in gamma + 3-jet production to predict the irreducible Z + 3-jet background (with the Z boson decaying to neutrinos) to searches with missing transverse energy + 3-jet signal topologies. [...]
arXiv:1206.6064; SLAC--PUB--15096; UCLA-12-TEP-103; CERN-PH-TH-2012-170; IPPP-11-42.-
2013 - 15.
- Published in : Phys. Rev. D 87 (2013) 034026
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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8.
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Four-Jet Production at the Large Hadron Collider at Next-to-Leading Order in QCD
/ Bern, Z (UCLA) ; Diana, G (Saclay) ; Dixon, L J (SLAC) ; Cordero, F Febres (Simon Bolivar U.) ; Hoeche, S (SLAC) ; Kosower, D A (Saclay) ; Ita, H (UCLA ; Bohr Inst.) ; Maitre, D (Durham U. ; CERN) ; Ozeren, K (UCLA)
We present the cross sections for production of up to four jets at the Large Hadron Collider, at next-to-leading order in the QCD coupling. We use the BlackHat library in conjunction with SHERPA and a recently developed algorithm for assembling primitive amplitudes into color-dressed amplitudes. [...]
arXiv:1112.3940; SB-F-402-11; UCLA-11-TEP-111; SLAC-PUB-14837; IPPP-11-82; CERN-PH-TH-2011-304.-
2012
- Published in : Phys. Rev. Lett. 109 (2012) 042001
APS Published version, local copy: PDF; External link: Preprint
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9.
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Left-Handed W Bosons at the LHC
/ Bern, Z. (UCLA) ; Diana, G. (Saclay, SPhT) ; Dixon, L.J. (CERN ; SLAC) ; Febres Cordero, F. (Simon Bolivar U.) ; Forde, D. (CERN ; NIKHEF, Amsterdam) ; Gleisberg, T. (SLAC) ; Hoeche, S. (SLAC) ; Ita, H. (UCLA) ; Kosower, D.A. (Saclay, SPhT) ; Maitre, D. (CERN ; Durham U.) et al.
The production of W bosons in association with jets is an important background to new physics at the LHC. Events in which the W carries large transverse momentum and decays leptonically lead to large missing energy and are of particular importance. [...]
SLAC-PUB-14409; CERN-PH-TH-2011-062; UCLA-11-TEP-10; SB-F-386-11; SACLAY-IPHT-T11-040; IPPP-11-15; NIKHEF-2011-006; arXiv:1103.5445; SLAC-PUB-14409; CERN-PH-TH-2011-062; UCLA-11-TEP-10; SB-F-386-11; NIKHEF-2011-006; SACLAY-IPHT-T11-040; IPPP-11-15.-
2011 - 32 p.
- Published in : Phys. Rev. D 84 (2011) 034008
APS Published version, local copy: PDF; Preprint: PDF; External link: SLAC
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10.
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The event generator SHERPA
/ Gleisberg, T ; Höche, S ; Krauss, F ; Schumann, S ; Schälicke, A ; Winter, J
CERN, 2005
Published version from CERN: PDF;
In : HERA and the LHC : A Workshop on the Implications of HERA for LHC Physics, CERN, Geneva, Switzerland, 26 Mar 2004 - 24 Mar 2005, pp.590 (CERN-2005-014)
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