Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

This Letter describes a model-agnostic search for pairs of jets (dijets) produced by resonant and non-resonant phenomena beyond the Standard Model in 3.6 fb −1 of proton–proton collisions with a centre-of-mass energy of s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The distribution of the invariant mass of the two leading jets is examined for local excesses above a data-derived estimate of the smoothly falling prediction of the Standard Model. The data are also compared to a Monte Carlo simulation of Standard Model angular distributions derived from the rapidity of the two jets. No evidence of anomalous phenomena is observed in the data, which are used to exclude, at 95% CL, quantum black holes with threshold masses below 8.3 TeV, 8.1 TeV, or 5.1 TeV in three different benchmark scenarios; resonance masses below 5.2 TeV for excited quarks, 2.6 TeV in a W ′ model, a range of masses starting from m Z ′ =1.5 TeV and couplings from g q =0.2 in a Z ′ model; and contact interactions with a compositeness scale below 12.0 TeV and 17.5 TeV respectively for destructive and constructive interference between the new interaction and QCD processes. These results significantly extend the ATLAS limits obtained from 8 TeV data. Gaussian-shaped contributions to the mass distribution are also excluded if the effective cross-section exceeds values ranging from approximately 50–300 fb for masses below 2 TeV to 2–20 fb for masses above 4 TeV. © 2016 CERN for the benefit of the ATLAS Collaboration

Registro:

Documento: Artículo
Título:Search for new phenomena in dijet mass and angular distributions from pp collisions at √s=13 TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2837 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2837 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2016
Volumen:754
Página de inicio:302
Página de fin:322
DOI: http://dx.doi.org/10.1016/j.physletb.2016.01.032
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v754_n_p302_Aad

Referencias:

  • Harris, R.M., Kousouris, K., Searches for dijet resonances at hadron colliders (2011) Int. J. Mod. Phys. A, 26, pp. 5005-5055
  • Boelaert, N., Åkesson, T., Dijet angular distributions at s=14 TeV (2010) Eur. Phys. J. C, 66, pp. 343-357
  • Arnison, G., Angular distributions and structure functions from two jet events at the CERN SPS p anti-p collider (1984) Phys. Lett. B, 136, p. 294
  • Albajar, C., Two jet mass distributions at the CERN proton–anti-proton collider (1988) Phys. Lett. B, 209, pp. 127-134
  • Bagnaia, P., Measurement of jet production properties at the CERN collider (1984) Phys. Lett. B, 144, pp. 283-290
  • Aaltonen, T., Search for new particles decaying into dijets in proton–antiproton collisions at s=1.96 TeV (2009) Phys. Rev. D, 79
  • Abazov, V.M., Measurement of dijet angular distributions at s=1.96 TeV and searches for quark compositeness and extra spatial dimensions (2009) Phys. Rev. Lett., 103
  • Search for new particles in two-jet final states in 7 TeV proton–proton collisions with the ATLAS detector at the LHC (2010) Phys. Rev. Lett., 105
  • Search for quark contact interactions in dijet angular distributions in pp collisions at s=7 TeV measured with the ATLAS detector (2011) Phys. Lett. B, 694, p. 327
  • Search for dijet resonances in 7 TeV pp collisions at CMS (2010) Phys. Rev. Lett., 105
  • Search for quark compositeness with the dijet centrality ratio in 7 TeV pp collisions (2010) Phys. Rev. Lett., 105
  • Measurement of dijet angular distributions and search for quark compositiveness in pp collisions at s=7 TeV (2011) Phys. Rev. Lett., 106
  • Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS (2011) Phys. Lett. B, 704, p. 123
  • Search for new physics in dijet mass and angular distributions in pp collisions at s=7 TeV measured with the ATLAS detector (2011) New J. Phys., 13
  • Search for new physics in the dijet mass distribution using 1 fb −1 of pp collision data at s=7 TeV collected by the ATLAS detector (2012) Phys. Lett. B, 708, pp. 37-54
  • ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at s=7 TeV (2013) J. High Energy Phys., 1301
  • Search for new phenomena in the dijet mass distribution using pp collision data at s=8 TeV with the ATLAS detector (2015) Phys. Rev. D, 91
  • Search for narrow resonances using the dijet mass spectrum in pp collisions at s=8 TeV (2013) Phys. Rev. D, 87
  • Search for new phenomena in dijet angular distributions in proton–proton collisions at s=8 TeV measured with the ATLAS detector (2015) Phys. Rev. Lett., 114
  • Search for narrow resonances decaying to dijets in proton–proton collisions at s=13 TeV (2015); The ATLAS experiment at the CERN Large Hadron Collider (2008) J. Instrum., 3
  • Lampl, W., Calorimeter clustering algorithms: description and performance (2008), http://cds.cern.ch/record/1099735, ATLAS-LARG-PUB-2008-002; Cacciari, M., Salam, G., Soyez, G., The anti-k T jet clustering algorithm (2008) J. High Energy Phys., 804
  • Cacciari, M., Salam, G., Dispelling the N 3 myth for the k t jet-finder (2006) Phys. Lett. B, 641, p. 57
  • Performance of pile-up mitigation techniques for jets in pp collisions at s=8 TeV using the ATLAS detector (2015); Data-driven determination of the energy scale and resolution of jets reconstructed in the ATLAS calorimeters using dijet and multijet events at s=8 TeV (2015), http://cds.cern.ch/record/2008678, ATLAS-CONF-2015-017; Jet calibration and systematic uncertainties for jets reconstructed in the ATLAS detector at s=13 TeV (2015), http://cds.cern.ch/record/2037613, ATL-PHYS-PUB-2015-015; Jet global sequential corrections with the ATLAS detector in proton–proton collisions at s=8 TeV (2015), http://cds.cern.ch/record/2001682, ATLAS-CONF-2015-002; Selection of jets produced in 13 TeV proton–proton collisions with the ATLAS detector (2015), https://cds.cern.ch/record/2037702, ATLAS-CONF-2015-029; Sjöstrand, T., Mrenna, S., Skands, P., A brief introduction to Pythia 8.1 (2008) Comput. Phys. Commun., 178, pp. 852-867
  • ATLAS Run 1 Pythia 8 tunes (2014), http://cds.cern.ch/record/1966419, ATLAS-PHYS-PUB-2014-021; Ball, R.D., Parton distributions with LHC data (2013) Nucl. Phys. B, 867, pp. 244-289
  • Agostinelli, S., GEANT4: a simulation toolkit (2003) Nucl. Instrum. Methods Phys. Res., Sect. A, 506, pp. 250-303
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, pp. 823-874
  • Nagy, Z., Three-jet cross sections in hadron–hadron collisions at next-to-leading-order (2002) Phys. Rev. Lett., 88
  • Nagy, Z., Next-to-leading order calculation of three-jet observables in hadron–hadron collision (2003) Phys. Rev. D, 68
  • Catani, S., Seymour, M.H., A general algorithm for calculating jet cross-sections in NLO QCD (1997) Nucl. Phys. B, 485, pp. 291-419
  • Dittmaier, S., Huss, A., Speckner, C., Weak radiative corrections to dijet production at hadron colliders (2012) J. High Energy Phys., 1211. , we thank the authors for providing weak radiative correction factors
  • Baur, U., Hinchliffe, I., Zeppenfeld, D., Excited quark production at hadron colliders (1987) Int. J. Mod. Phys. A, 2, p. 1285
  • Baur, U., Spira, M., Zerwas, P.M., Excited quark and lepton production at hadron colliders (1990) Phys. Rev. D, 42, pp. 815-825
  • Altarelli, G., Mele, B., Ruiz-Altaba, M., Searching for new heavy vector bosons in pp collider (1989) Z. Phys. C, 45, p. 109. , Erratum:
  • Abercrombie, D., Dark matter benchmark models for early LHC Run-2 searches: report of the ATLAS/CMS Dark Matter Forum (2015); Chala, M., Constraining dark sectors with monojets and dijets (2015) J. High Energy Phys., 1507
  • Gingrich, D.M., Quantum black holes with charge, colour, and spin at the LHC (2010) J. Phys. G, 37, p. 105008
  • Calmet, X., Gong, W., Hsu, S.D.H., Colorful quantum black holes at the LHC (2008) Phys. Lett. B, 668, pp. 20-23
  • Dai, D.-C., BlackMax: a black-hole event generator with rotation, recoil, split branes, and brane tension (2008) Phys. Rev. D, 77
  • Eichten, E., Supercollider physics (1984) Rev. Mod. Phys., 56, pp. 579-707
  • Eichten, E., Erratum: supercollider physics (1986) Rev. Mod. Phys., 58, p. 1065
  • Chiapetta, P., Perrottet, M., Possible bounds on compositeness from inclusive one jet production in large hadron colliders (1991) Phys. Lett. B, 253, pp. 489-493
  • Wilks, S.S., The large-sample distribution of the likelihood ratio for testing composite hypotheses (1938) Ann. Math. Stat., 9, pp. 60-62
  • Aaltonen, T., Global search for new physics with 2.0 fb −1 at CDF (2009) Phys. Rev. D, 79
  • Choudalakis, G., On hypothesis testing, trials factor, hypertests and the BumpHunter (2011); Lai, H.-L., New parton distributions for collider physics (2010) Phys. Rev. D, 82
  • Martin, A.D., Parton distributions for the LHC (2009) Eur. Phys. J. C, 63, pp. 189-285
  • Read, A.L., Presentation of search results: the CLs(s) technique (2002) J. Phys. G, 28, pp. 2693-2704
  • Junk, T., Confidence level computation for combining searches with small statistics (1999) Nucl. Instrum. Methods Phys. Res., Sect. A, 434, pp. 435-443
  • Giddings, S.B., Thomas, S.D., High-energy colliders as black hole factories: the end of short distance physics (2002) Phys. Rev. D, 65
  • Dimopoulos, S., Landsberg, G.L., Black holes at the Large Hadron Collider (2001) Phys. Rev. Lett., 87
  • Meade, P., Randall, L., Black holes and quantum gravity at the LHC (2008) J. High Energy Phys., 805
  • Anchordoqui, L.A., Inelastic black hole production and large extra dimensions (2004) Phys. Lett. B, 594, pp. 363-367
  • ATLAS Collaboration, (2015), Search for evidence for strong gravity in jet final states produced in pp collisions at s=13 TeV using the ATLAS detector at the LHC, eprint: CERN–PH-EP-2015-312; Frost, J.A., Phenomenology of production and decay of spinning extra-dimensional black holes at hadron colliders (2009) J. High Energy Phys., 910
  • Gingrich, D.M., Monte Carlo event generator for black hole production and decay in proton–proton collisions (2010) Comput. Phys. Commun., 181, pp. 1917-1924
  • Arkani-Hamed, N., Dimopoulos, S., Dvali, G.R., The hierarchy problem and new dimensions at a millimete (1998) Phys. Lett. B, 429, pp. 263-272
  • Antoniadis, I., New dimensions at a millimeter to a Fermi and superstrings at a TeV (1998) Phys. Lett. B, 436, pp. 257-263
  • Randall, L., Sundrum, R., A large mass hierarchy from a small extra dimension (1999) Phys. Rev. Lett., 83, pp. 3370-3373
  • Pumplin, J., New generation of parton distributions with uncertainties from global QCD analysis (2002) J. High Energy Phys., 207
  • Alwall, J., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations (2014) J. High Energy Phys., 1407
  • Improved luminosity determination in pp collisions at s=7 TeV using the ATLAS detector at the LHC (2013) Eur. Phys. J. C, 73, p. 2518
  • Gao, J., CIJET: a program for computation of jet cross sections induced by quark contact interactions at hadron colliders (2013) Comput. Phys. Commun., 184, pp. 2362-2366
  • Cowan, G., Asymptotic formulae for likelihood-based tests of new physics (2011) Eur. Phys. J. C, 71, p. 1554. , Erratum:

Citas:

---------- APA ----------
(2016) . Search for new phenomena in dijet mass and angular distributions from pp collisions at √s=13 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 754, 302-322.
http://dx.doi.org/10.1016/j.physletb.2016.01.032
---------- CHICAGO ----------
Aad, G. "Search for new phenomena in dijet mass and angular distributions from pp collisions at √s=13 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 754 (2016) : 302-322.
http://dx.doi.org/10.1016/j.physletb.2016.01.032
---------- MLA ----------
Aad, G. "Search for new phenomena in dijet mass and angular distributions from pp collisions at √s=13 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 754, 2016, pp. 302-322.
http://dx.doi.org/10.1016/j.physletb.2016.01.032
---------- VANCOUVER ----------
Aad, G. Search for new phenomena in dijet mass and angular distributions from pp collisions at √s=13 TeV with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2016;754:302-322.
http://dx.doi.org/10.1016/j.physletb.2016.01.032