Abstract
We present phenomenological results for vector boson pair production at the LHC, obtained using the parton-level next-to-leading order program MCFM. We include the implementation of a new process in the code, pp → γγ, and important updates to existing processes. We incorporate fragmentation contributions in order to allow for the experimental isolation of photons in γγ, Wγ, and Zγ production and also account for gluon-gluon initial state contributions for all relevant processes. We present results for a variety of phenomenological scenarios, at the current operating energy of \( \sqrt {s} = 7 \) TeV and for the ultimate machine goal, \( \sqrt {s} = 14 \) TeV. We investigate the impact of our predictions on several important distributions that enter into searches for new physics at the LHC.
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References
J.M. Campbell and R.K. Ellis, An update on vector boson pair production at hadron colliders, Phys. Rev. D 60 (1999) 113006 [hep-ph/9905386] [SPIRES].
J.D. Hobbs, M.S. Neubauer and S. Willenbrock, Tests of the standard electroweak model at the energy frontier, arXiv:1003.5733 [SPIRES].
CMS collaboration, Observation of Wγ and Zγ production at sqrts = 7TeV, in preparation, CMS-EWK-10-008 (2011).
ATLAS collaboration, G. Aad et al., Measurement of the W W cross section in \( \sqrt {s} = 7 \) TeV pp collisions with ATLAS, arXiv:1104.5225 [SPIRES].
CMS collaboration, S. Chatrchyan et al., Measurement of WW production and search for the Higgs boson in pp collisions at \( \sqrt {s} = 7 \) TeV, Phys. Lett. B 699 (2011) 25 [arXiv:1102.5429] [SPIRES].
S. Catani, M. Fontannaz, J.P. Guillet and E. Pilon, Cross-section of isolated prompt photons in hadron hadron collisions, JHEP 05 (2002) 028 [hep-ph/0204023] [SPIRES].
L. Bourhis, M. Fontannaz and J.P. Guillet, Quark and gluon fragmentation functions into photons, Eur. Phys. J. C 2 (1998) 529 [hep-ph/9704447] [SPIRES].
S. Catani and M.H. Seymour, A general algorithm for calculating jet cross sections in NLO QCD, Nucl. Phys. B 485 (1997) 291 [hep-ph/9605323] [SPIRES].
S. Frixione, Isolated photons in perturbative QCD, Phys. Lett. B 429 (1998) 369 [hep-ph/9801442] [SPIRES].
A.D. Martin, W.J. Stirling, R.S. Thorne and G. Watt, Parton distributions for the LHC, Eur. Phys. J. C 63 (2009) 189 [arXiv:0901.0002] [SPIRES].
D.A. Dicus and S.S.D. Willenbrock, Photon pair production and the intermediate mass Higgs boson, Phys. Rev. D 37 (1988) 1801 [SPIRES].
P.M. Nadolsky, C. Balázs, E.L. Berger and C.P. Yuan, Gluon-gluon contributions to the production of continuum diphoton pairs at hadron colliders, Phys. Rev. D 76 (2007) 013008 [hep-ph/0702003] [SPIRES].
Z. Bern, A. De Freitas and L.J. Dixon, Two-loop amplitudes for gluon fusion into two photons, JHEP 09 (2001) 037 [hep-ph/0109078] [SPIRES].
Z. Bern, L.J. Dixon and C. Schmidt, Isolating a light Higgs boson from the di-photon background at the LHC, Phys. Rev. D 66 (2002) 074018 [hep-ph/0206194] [SPIRES].
L. Ametller, E. Gava, N. Paver and D. Treleani, Role of the QCD induced gluon-gluon coupling to gauge boson pairs in the multi-TeV region, Phys. Rev. D 32 (1985) 1699 [SPIRES].
J.J. van der Bij and E.W.N. Glover, Photon Z boson pair production via gluon fusion, Phys. Lett. B 206 (1988) 701 [SPIRES].
K.L. Adamson, D. de Florian and A. Signer, Gluon induced contributions to Zγ production at hadron colliders, Phys. Rev. D 67 (2003) 034016 [hep-ph/0211295] [SPIRES].
D.A. Dicus, C. Kao and W.W. Repko, Gluon production of gauge bosons, Phys. Rev. D 36 (1987) 1570 [SPIRES].
E.W.N. Glover and J.J. van der Bij, Vector boson pair production via gluon fusion, Phys. Lett. B 219 (1989) 488 [SPIRES].
E.W.N. Glover and J.J. van der Bij, Z boson pair production via gluon fusion, Nucl. Phys. B 321 (1989) 561 [SPIRES].
T. Binoth, M. Ciccolini, N. Kauer and M. Krämer, Gluon-induced W W background to Higgs boson searches at the LHC, JHEP 03 (2005) 065 [hep-ph/0503094] [SPIRES].
T. Binoth, M. Ciccolini, N. Kauer and M. Krämer, Gluon-induced W-boson pair production at the LHC, JHEP 12 (2006) 046 [hep-ph/0611170] [SPIRES].
T. Matsuura and J.J. van der Bij, Characteristics of leptonic signals for Z boson pairs at hadron colliders, Z. Phys. C 51 (1991) 259 [SPIRES].
C. Zecher, T. Matsuura and J.J. van der Bij, Leptonic signals from off-shell Z boson pairs at hadron colliders, Z. Phys. C 64 (1994) 219 [hep-ph/9404295] [SPIRES].
N.E. Adam et al., Higgs working group summary report, arXiv:0803.1154 [SPIRES].
T. Binoth, N. Kauer and P. Mertsch, Gluon-induced QCD corrections to \( pp \to ZZ \to \ell {\bar\ell}{\ell^{\prime}}{\bar\ell}^{\prime} \), arXiv:0807.0024 [SPIRES].
Z. Bern, L.J. Dixon and D.A. Kosower, One-loop amplitudes for e + e − to four partons, Nucl. Phys. B 513 (1998) 3 [hep-ph/9708239] [SPIRES].
P. Aurenche, A. Douiri, R. Baier, M. Fontannaz and D. Schiff, Large p T double photon production in hadronic collisions: beyond leading logarithm QCD calculation, Z. Phys. C 29 (1985) 459 [SPIRES].
T. Binoth, J.P. Guillet, E. Pilon and M. Werlen, A full next-to-leading order study of direct photon pair production in hadronic collisions, Eur. Phys. J. C 16 (2000) 311 [hep-ph/9911340] [SPIRES].
ATLAS collaboration, Search for the Higgs boson in the diphoton final state with 38 pb −1 of data recorded by the ATLAS detector in proton-proton collisions at sqrts = 7TeV, ATLAS-CONF-2011-025 (2001).
S. Frixione and G. Ridolfi, Jet photoproduction at HERA, Nucl. Phys. B 507 (1997) 315 [hep-ph/9707345] [SPIRES]
R.W. Brown, D. Sahdev and K.O. Mikaelian, W ± Z 0 and W ± γ pair production in neutrino e, pp and \( \bar{p}p \) collisions, Phys. Rev. D 20 (1979) 1164 [SPIRES].
J. Ohnemus, Order α s calculations of hadronic W ± γ and Zγ production, Phys. Rev. D 47 (1993) 940 [SPIRES].
D. De Florian and A. Signer, Wγ and Zγ production at hadron colliders, Eur. Phys. J. C 16 (2000) 105 [hep-ph/0002138] [SPIRES].
L.J. Dixon, Z. Kunszt and A. Signer, Helicity amplitudes for O(α s ) production of W + W − , W ± Z, ZZ, W ± γ, or Zγ pairs at hadron colliders, Nucl. Phys. B 531 (1998) 3 [hep-ph/9803250] [SPIRES].
E. Accomando, A. Denner and C. Meier, Electroweak corrections to Wγ and Zγ production at the LHC, Eur. Phys. J. C 47 (2006) 125 [hep-ph/0509234] [SPIRES].
F. Campanario, C. Englert, M. Spannowsky and D. Zeppenfeld, NLO-QCD corrections to Wγj production, Europhys. Lett. 88 (2009) 11001 [arXiv:0908.1638] [SPIRES].
K.O. Mikaelian, M.A. Samuel and D. Sahdev, The magnetic moment of weak bosons produced in pp and \( p\bar{p} \) collisions, Phys. Rev. Lett. 43 (1979) 746 [SPIRES].
U. Baur, T. Han and J. Ohnemus, QCD corrections and anomalous couplings in Zγ production at hadron colliders, Phys. Rev. D 57 (1998) 2823 [hep-ph/9710416] [SPIRES].
W. Hollik and C. Meier, Electroweak corrections to γ Z production at hadron colliders, Phys. Lett. B 590 (2004) 69 [hep-ph/0402281] [SPIRES].
R.W. Brown and K.O. Mikaelian, W + W − and Z 0 Z 0 pair production in e + e − , pp, \( p\bar{p} \) colliding beams, Phys. Rev. D 19 (1979) 922 [SPIRES].
J. Ohnemus, An order α s calculation of hadronic W − W + production, Phys. Rev. D 44 (1991) 1403 [SPIRES].
S. Frixione, A next-to-leading order calculation of the cross-section for the production of W + W − pairs in hadronic collisions, Nucl. Phys. B 410 (1993) 280 [SPIRES].
J. Ohnemus, Hadronic ZZ, W − W + and W ± Z production with QCD corrections and leptonic decays, Phys. Rev. D 50 (1994) 1931 [hep-ph/9403331] [SPIRES].
L.J. Dixon, Z. Kunszt and A. Signer, Vector boson pair production in hadronic collisions at order α s : lepton correlations and anomalous couplings, Phys. Rev. D 60 (1999) 114037 [hep-ph/9907305] [SPIRES].
J.M. Campbell, R.K. Ellis and G. Zanderighi, Next-to-leading order predictions for W W + jet distributions at the LHC, JHEP 12 (2007) 056 [arXiv:0710.1832] [SPIRES].
S. Dittmaier, S. Kallweit and P. Uwer, NLO QCD corrections to \( {{{pp}} \left/ {{p\bar{p}}} \right.} \to WW + jet + X \) including leptonic W-boson decays, Nucl. Phys. B 826 (2010) 18 [arXiv:0908.4124] [SPIRES].
T. Melia, K. Melnikov, R. Rontsch and G. Zanderighi, Next-to-leading order QCD predictions for W + W + jj production at the LHC, JHEP 12 (2010) 053 [arXiv:1007.5313] [SPIRES].
T. Melia, K. Melnikov, R. Rontsch and G. Zanderighi, NLO QCD corrections for W + W − pair production in association with two jets at hadron colliders, arXiv:1104.2327 [SPIRES].
J. Ohnemus, An order α s calculation of hadronic W ± Z production, Phys. Rev. D 44 (1991) 3477 [SPIRES].
S. Frixione, P. Nason and G. Ridolfi, Strong corrections to W Z production at hadron colliders, Nucl. Phys. B 383 (1992) 3 [SPIRES].
F. Campanario, C. Englert, S. Kallweit, M. Spannowsky and D. Zeppenfeld, NLO QCD corrections to WZ + jet production with leptonic decays, JHEP 07 (2010) 076 [arXiv:1006.0390] [SPIRES].
D0 collaboration, V.M. Abazov et al., Measurement of the W Z → ℓνℓℓ cross section and limits on anomalous triple gauge couplings in \( p\bar{p} \) collisions at \( \sqrt {s} = 1.96 \) TeV, Phys. Lett. B 695 (2011) 67 [arXiv:1006.0761] [SPIRES].
The ATLAS collaboration, G. Aad et al., Expected performance of the ATLAS experiment — Detector, trigger and physics, arXiv:0901.0512 [SPIRES].
CMS collaboration, G.L. Bayatian et al., CMS technical design report, volume II: physics performance, J. Phys. G 34 (2007) 995 [SPIRES].
J.M. Butterworth, A.R. Davison, M. Rubin and G.P. Salam, Jet substructure as a new Higgs search channel at the LHC, Phys. Rev. Lett. 100 (2008) 242001 [arXiv:0802.2470] [SPIRES].
A. Abdesselam et al., Boosted objects: a probe of beyond the standard model physics, Eur. Phys. J. C 71 (2011) 1661 [arXiv:1012.5412] [SPIRES].
J. Ohnemus and J.F. Owens, An order α s calculation of hadronic Z Z production, Phys. Rev. D 43 (1991) 3626 [SPIRES].
B. Mele, P. Nason and G. Ridolfi, QCD radiative corrections to Z boson pair production in hadronic collisions, Nucl. Phys. B 357 (1991) 409 [SPIRES].
T. Binoth, T. Gleisberg, S. Karg, N. Kauer and G. Sanguinetti, NLO QCD corrections to ZZ + jet production at hadron colliders, Phys. Lett. B 683 (2010) 154 [arXiv:0911.3181] [SPIRES].
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Campbell, J.M., Ellis, R.K. & Williams, C. Vector boson pair production at the LHC. J. High Energ. Phys. 2011, 18 (2011). https://doi.org/10.1007/JHEP07(2011)018
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DOI: https://doi.org/10.1007/JHEP07(2011)018