Measurement of the production cross section for W-bosons in association with jets in pp collisions at √s = 7 TeV with the ATLAS detector

This Letter reports on a first measurement of the inclusive W + jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross section ...

[1]  L. Lönnblad,et al.  Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions , 2007, 0706.2569.

[2]  D. Rousseau,et al.  Calorimeter Clustering Algorithms : Description and Performance , 2008 .

[3]  P. Nason,et al.  Matching NLO QCD computations with Parton Shower simulations: the POWHEG method , 2007, 0709.2092.

[4]  M. Dorigo,et al.  Improved determination of the sample composition of dimuon events produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV , 2011, 1105.5787.

[5]  G. Aad,et al.  The ATLAS Experiment at the CERN Large Hadron Collide , 2008 .

[6]  F. Siegert,et al.  Event generation with SHERPA 1.1 , 2008, 0811.4622.

[7]  M. L. Ferrer,et al.  Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics , 2008, 0901.0512.

[8]  T. Aaltonen,et al.  Measurement of the cross section for W-boson production in association with jets in ppbar collisions at sqrt(s)=1.96 TeV , 2007, 0711.4044.

[9]  S. Mrenna,et al.  Pythia 6.3 physics and manual , 2003, hep-ph/0308153.

[10]  R. Pittau,et al.  ALPGEN, a generator for hard multiparton processes in hadronic collisions , 2002, hep-ph/0206293.

[11]  A. Bocci,et al.  Measurement of the W → ℓν and Z/γ* → ℓℓ production cross sections in proton-proton collisions at $ \sqrt {s} = 7\;{\text{TeV}} $ with the ATLAS detector , 2010 .

[12]  S. Moretti,et al.  HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) , 2001 .

[13]  K. Melnikov,et al.  Electroweak gauge boson production at hadron colliders through O(alpha(s)**2) , 2006, hep-ph/0609070.

[14]  Paolo Nason,et al.  NLL resummation of the heavy-quark hadroproduction cross-section , 1998 .

[15]  J. Huston,et al.  Implications of CTEQ global analysis for collider observables , 2008, 0802.0007.

[16]  D Maître,et al.  Precise predictions for W+4-jet production at the large hadron collider. , 2010, Physical review letters.

[17]  J. Huston,et al.  New generation of parton distributions with uncertainties from global QCD analysis , 2002, hep-ph/0201195.

[18]  A. Martin,et al.  Parton distributions for the LHC , 2009, 0901.0002.

[19]  R. K. Ellis,et al.  Next-to-leading order QCD predictions for $W$ + 2 jet and $Z$ + 2 jet production at the CERN LHC , 2003 .

[20]  P. Falgari,et al.  Threshold expansion of the gg(qq) -> QQ+X cross section at O(alpha_s^4). , 2009, 0911.5166.

[21]  S. Moch,et al.  Theoretical status and prospects for top-quark pair production at hadron colliders , 2008, 0804.1476.

[22]  M. Cacciari,et al.  The anti-$k_t$ jet clustering algorithm , 2008, 0802.1189.

[23]  A. Sherstnev,et al.  Parton distributions for LO generators , 2007, 0711.2473.

[24]  Elzbieta Richter-Was,et al.  Universal interface of TAUOLA: Technical and physics documentation , 2010, Comput. Phys. Commun..

[25]  G. Zanderighi,et al.  W+3 jet production at the Tevatron , 2009, 0906.1445.

[26]  Z. Was,et al.  PHOTOS Monte Carlo: a precision tool for QED correctionsin Z and W decays , 2005, hep-ph/0506026.