EDP Sciences : Recent Results of the CMS Experiment

The CMS experiment has produced a large number of new measurements with data collected during Run 1 by the CERN Large Hadron Collider (LHC). In this report a few results in Higgs and top physics will be mentioned. After a shutdown in 2013 and 2014, the LHC restarted proton-proton collisions at the unprecedented center-of-mass energy of 13 TeV in June 2015. The data collected until August 2015 have yielded interesting events and allowed the extraction of the first results of searches at the high-energy end of mass spectra, where the effect of the higher collision energy is largest.

[1]  M. Z. Mehta,et al.  Search for neutral Higgs bosons decaying to tau pairs in pp collisions at root s=7 TeV , 2012 .

[2]  R. Harlander,et al.  Next-to-next-to-leading order Higgs production at Hadron Colliders. , 2002, Physical review letters.

[3]  W. H. Smith,et al.  Measurement of W ? and Z ? production in pp collisions at s = 7 TeV , 2011 .

[4]  M. Chamizo Llatas,et al.  Measurements of inclusive W and Z cross sections in pp collisions at ps = 7 TeV , 2011 .

[5]  C. Rogan,et al.  Measurement of the tt production cross section in thedilepton channel in pp collisions at √s = 7 TeV , 2012 .

[6]  T. Tuuva,et al.  Search for new physics with jets and missing transverse momentum in pp collisions at $ \sqrt {s} = 7 $ TeV , 2011, 1106.4503.

[7]  Savas Dimopoulos,et al.  Phenomenology, astrophysics and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity , 1998, hep-ph/9807344.

[8]  Giulia Zanderighi,et al.  MINLO: multi-scale improved NLO , 2012, 1206.3572.

[9]  A. Read Presentation of search results: the CLs technique , 2002 .

[10]  V. M. Ghete,et al.  Search for a Higgs boson in the decay channel H → ZZ(*) → q$ \overline {\text{q}} $ℓ−ℓ+ in pp collisions at $ \sqrt {s} = 7 $TeV , 2012 .

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

[12]  U. Langenfeld,et al.  Measuring the running top-quark mass , 2009, 0906.5273.

[13]  Howard E. Haber,et al.  The Search for Supersymmetry: Probing Physics Beyond the Standard Model , 1985 .

[14]  T. Junk Confidence Level Computation for Combining Searches with Small Statistics , 1999, hep-ex/9902006.

[15]  João Paulo Teixeira,et al.  The CMS experiment at the CERN LHC , 2008 .

[16]  V. M. Ghete,et al.  Search for anomalous production of multilepton events in pp collisions at $ \sqrt {s} = 7\,TeV $ , 2012, Physical review letters.

[17]  V. M. Ghete,et al.  Measurement of theB+Production Cross Section inppCollisions ats=7TeV , 2011 .

[18]  M. Spiropulu,et al.  J/ψ and ψ(2S) production in p p̄ collisions at √s = 1.8 TeV , 1997 .

[19]  A. Campoverde Search for Supersymmetry , 2012 .

[20]  P. W. Higgs Broken symmetries, massless particles and gauge fields , 1964 .

[21]  Roelof Hamberg,et al.  ErratumErratum to: “A complete calculation of the order αs2 correction to the Drell–Yan K-factor”: [Nucl. Phys. B 359 (1991) 343] , 2002 .

[22]  V. M. Ghete,et al.  Measurement of the cross section for production of $ b\overline b X $ decaying to muons in pp collisions at $ \sqrt {s} = 7 $ TeV , 2012 .

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

[24]  Steven R. Simon,et al.  Search for the standard model Higgs boson decaying to bottom quarks in pp collisions at √{ s} = 7 TeV , 2012 .

[25]  topcolor-assisted technicolor , 2008 .

[26]  G. Guralnik,et al.  Global Conservation Laws and Massless Particles , 1964 .

[27]  G. Plaut,et al.  QCD Corrections to the Drell-Yan Mechanism and the Pion Structure Function , 1980 .

[28]  T. Tuuva,et al.  Search for supersymmetry in pp collisions at (square root) s (equivalent) 7 TeV in events with a single lepton, jets, and missing transverse momentum , 2012, 1212.6428.

[29]  G. Bauer,et al.  Search for the standard model Higgs boson decaying into two photons in pp collisions at √s = 7 TeV , 2012 .

[30]  V. M. Ghete,et al.  Combined results of searches for the standard model Higgs boson in pp collisions at √s = 7 TeV , 2012 .

[31]  J. Cronin Broken Symmetries , 2011 .

[32]  D. Florian,et al.  Higgs boson production at the LHC : transverse momentum resummation effects in the H → γγ , H → WW → lνlν and H → ZZ → 4 l decay modes , 2012 .

[33]  A. Jones Phenomenology , 2014 .

[34]  L. Dixon,et al.  High-precision QCD at hadron colliders: Electroweak gauge boson rapidity distributions at next-to-next-to leading order , 2003, hep-ph/0312266.

[35]  M. Z. Mehta,et al.  Search for the standard model Higgs boson in the H → ZZ → ℓ+ℓ−τ+τ− decay channel in pp collisions at $ \sqrt {s} = {7}\;{\text{TeV}} $ , 2012, 1202.3617.

[36]  H. Nilles,et al.  Supersymmetry, Supergravity and Particle Physics , 1984 .

[37]  G. Altarelli,et al.  Large Perturbative Corrections to the Drell-Yan Process in QCD , 1979 .

[38]  Peter Uwer,et al.  HATHOR - HAdronic Top and Heavy quarks crOss section calculatoR , 2011, Comput. Phys. Commun..

[39]  Tom Melia,et al.  W+W−, WZ and ZZ production in the POWHEG BOX , 2011, 1107.5051.

[40]  A. A. Ocampo Rios,et al.  Search for Supersymmetry in Events with b Jets and Missing Transverse Momentum at the LHC , 2011, 1106.3272.

[41]  A. A. Ocampo Rios,et al.  Measurement of the t t-bar production cross section and the top quark mass in the dilepton channel in pp collisions at sqrt(s) = 7 TeV , 2011, 1105.5661.

[42]  G. Ridolfi,et al.  QCD analysis of first b cross section data at 1.96 TeV , 2003, hep-ph/0312132.

[43]  Steven R. Simon,et al.  Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks , 2013 .

[44]  V. M. Ghete,et al.  Measurement of the t-channel single top quark production cross section in pp collisions at √s=7  TeV. , 2011, Physical review letters.

[45]  V. M. Ghete,et al.  Measurement of the single-top-quark t-channel cross section in pp collisions at $ \sqrt{s}=7 $ TeV , 2012 .

[46]  B. Zumino,et al.  Supergauge Transformations in Four-Dimensions , 1974 .

[47]  C. Collaboration,et al.  Search for the standard model Higgs boson decaying to bottom quarks in pp collisions at sqrt(s) = 7 TeV , 2012, 1202.4195.

[48]  E. Gross,et al.  Trial factors for the look elsewhere effect in high energy physics , 2010, 1005.1891.

[49]  Ryszard S. Romaniuk,et al.  Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC , 2012 .

[50]  J. Campbell,et al.  MCFM for the Tevatron and the LHC , 2010, 1007.3492.

[51]  A. A. Ocampo Rios,et al.  Measurement of the top-quark mass in $ \mathrm{t}\overline{\mathrm{t}} $ events with lepton+jets final states in pp collisions at $ \sqrt{s}=7 $ TeV , 2012 .

[52]  M. Grazzini,et al.  Heavy-quark mass effects in Higgs boson production at the LHC , 2013, 1306.4581.

[53]  M. Grazzini,et al.  Higgs boson production at the LHC: transverse momentum resummation effects in the H → γγ, H → WW → lνlν and H → ZZ → 4l decay modes , 2012, Journal of High Energy Physics.

[54]  S. Frixione,et al.  Matching NLO QCD computations and parton shower simulations , 2002, hep-ph/0204244.

[55]  V. M. Ghete,et al.  Jet production rates in association with W and Z bosons in pp collisions at $ \sqrt {s} = 7 {\text{TeV}} $ , 2012 .

[56]  Savas Dimopoulos,et al.  The Hierarchy problem and new dimensions at a millimeter , 1998, hep-ph/9803315.

[57]  G. Bruno,et al.  Measurement of W+W- production and search for the Higgs boson in pp collisions at √s=7 TeV , 2011 .

[58]  I-A Melzer-Pellmann,et al.  Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy , 2012, 1205.6615.

[59]  M. Z. Mehta,et al.  Search for physics beyond the standard model in events with a Z boson, jets, and missing transverse energy in pp collisions at sqrt(s) = 7 TeV , 2012, 1204.3774.

[60]  P. W. Higgs Broken Symmetries and the Masses of Gauge Bosons , 1964 .

[61]  R. Oldeman,et al.  Measurement of the B± production cross-section in pp collisions at $ \sqrt {s} $ = 7 TeV , 2012, Physical review letters.

[62]  V. M. Ghete,et al.  Search for the standard model Higgs boson in the H → ZZ → 2ℓ2ν channel in pp collisions at $ \sqrt {\text{s}} = {7}\;{\text{TeV}} $ , 2012 .

[63]  U. Amaldi,et al.  Supersymmetry , 1991, Science.

[64]  R. Frühwirth,et al.  Search for electroweak production of charginos and neutralinos using leptonic final states in pp collisions at sqrt(s) = 7 TeV , 2012, 1209.6620.

[65]  T. Banks,et al.  Undetected Higgs decays and neutrino masses in gauge mediated, lepton number violating models , 2008, 0804.2688.

[66]  E. Re,et al.  NLO Higgs boson production via gluon fusion matched with shower in POWHEG , 2008, 0812.0578.

[67]  Order alpha s2 contributions to the Drell-Yan cross section at fixed target energies. , 1994, Physical review. D, Particles and fields.

[68]  Serguei Chatrchyan,et al.  Measurement of the Rapidity and Transverse Momentum Distributions of Z Bosons in pp Collisions at sqrt(s)=7 TeV , 2011, 1110.4973.

[69]  M. Kreps,et al.  Strong Constraints on the Rare Decays B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) , 2012, 1203.4493.

[70]  Search for the Standard Model Higgs Boson at LEP , 2003, hep-ex/0306033.

[71]  C. Issever,et al.  BlackMax: A black-hole event generator with rotation, recoil, split branes, and brane tension , 2007, 0711.3012.

[72]  S. Ferrara,et al.  Gauge models with spontaneously broken local supersymmetry , 1982 .

[73]  I-A Melzer-Pellmann,et al.  Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy , 2011, 1109.2352.

[74]  Frank Paige,et al.  Gluon corrections to the Drell-Yan model , 1979 .

[75]  The Cms Collaboration Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC , 2012, 1207.7235.

[76]  D. Volyanskyy,et al.  Measurements of Inclusive W and Z Cross Sections in pp Collisions at √ s = 7 TeV The CMS Collaboration , 2010 .

[77]  V. M. Ghete,et al.  J/ψ and ψ(2S) production in pp collisions at $ \sqrt {s} = 7{\text{Tev}} $ , 2012 .

[78]  T. Kibble,et al.  Symmetry Breaking in Non-Abelian Gauge Theories , 1967 .

[79]  W. Neerven,et al.  The O(αs2) corrected Drell-Yan K-factor in the DIS and schemes , 1992 .

[80]  A. A. Ocampo Rios,et al.  Inclusive b-hadron production cross section with muons in pp collisions at $ \sqrt {s} = 7\;{\text{TeV}} $ , 2011, 1101.3512.

[81]  V. M. Ghete,et al.  Measurement of the $ \mathrm{t}\overline{\mathrm{t}} $ production cross section in the dilepton channel in pp collisions at $ \sqrt{s}=7 $ TeV , 2012 .

[82]  D. Newbold,et al.  Measurement of the tt̄ production cross section in pp collisions at √ s = 7 TeV using the kinematic properties of events with leptons and jets , 2011 .

[83]  A. Buras MINIMAL FLAVOUR VIOLATION AND BEYOND: TOWARDS A FLAVOUR CODE FOR SHORT DISTANCE DYNAMICS , 2010, 1012.1447.

[84]  M. Z. Mehta,et al.  Search for microscopic black holes in pp collisions at $ \sqrt{s}=8 $ TeV , 2012 .

[85]  F. Englert,et al.  Broken Symmetry and the Mass of Gauge Vector Mesons , 1964 .

[86]  G. Bruno,et al.  Measurement of the Top-antitop Production Cross Section in pp Collisions at sqrt(s)=7 TeV using the Kinematic Properties of Events with Leptons and Jets , 2011, 1106.0902.

[87]  T. Tuuva,et al.  Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at $ \sqrt {s} = 7 $ TeV , 2013 .

[88]  N. Kidonakis Next-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution , 2010, 1009.4935.

[89]  Z. A. Ibrahim,et al.  Measurement of charm and beauty production in deep inelastic ep scattering from decays into muons at , 2009 .

[90]  Joshua Swanson,et al.  Inclusive search for squarks and gluinos in pp collisions , 2012 .

[91]  M. Z. Mehta,et al.  Search for Supersymmetry in pp Collisions at √s = 7 Te V in Events with Two Photons and Missing Transverse Energy , 2011 .

[92]  P. W. Higgs Spontaneous Symmetry Breakdown without Massless Bosons , 1966 .

[93]  T. Tuuva,et al.  Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at $ \sqrt{s} $ = 8 TeV , 2014, 1402.4770.

[94]  T. Tuuva,et al.  Measurement of the inclusive W and Z production cross sections in pp collisions at $ \sqrt {s} = 7 $ TeV with the CMS experiment , 2011 .

[95]  A. A. Ocampo Rios,et al.  Measurement of the $ t\overline{t} $ production cross section in the dilepton channel in pp collisions at $ \sqrt{s} $ = 8 TeV , 2013 .

[96]  M. Z. Mehta,et al.  Upsilon production cross section inppcollisions ats=7TeV , 2011 .

[97]  V. M. Ghete,et al.  Search for the Standard Model Higgs Boson in the Decay Channel H→ZZ→4l in pp Collisions at √s=7 TeV , 2012 .

[98]  V. M. Ghete,et al.  Search for the standard model Higgs boson decaying into two photons in $pp$ collisions at $\sqrt{s}=7$ TeV , 2012 .

[99]  D. Volyanskyy,et al.  Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC , 2010, 1009.4122.

[100]  Roelof Hamberg,et al.  A complete calculation of the order αs2 correction to the Drell-Yan K-factor , 1991 .

[101]  M. Mangano The saga of bottom production in proton-antiproton collisions , 2004, hep-ph/0411020.

[102]  P. Nason,et al.  NLO Higgs boson production via vector-boson fusion matched with shower in POWHEG , 2009, 0911.5299.