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A new observable to measure the top-quark mass at hadron colliders

  • S. Alioli
  • P. Fernandez
  • J. Fuster
  • A. Irles
  • S. Moch
  • P. UwerEmail author
  • M. Vos
Regular Article - Theoretical Physics

Abstract

A new method to measure the top-quark mass in high energetic hadron collisions is presented. We use theoretical predictions calculated at next-to-leading order accuracy in quantum chromodynamics to study the (normalized) differential distribution of the \(t\bar{t} + 1\mbox{-jet}\) cross section with respect to its invariant mass \(\sqrt{s_{t\bar{t} j}}\). The sensitivity of the method to the top-quark mass together with the impact of various theoretical and experimental uncertainties has been investigated and quantified. The new method allows for a complementary measurement of the top-quark mass parameter and has a high potential to become competitive in precision with respect to established approaches. Furthermore we emphasize that in the proposed method the mass parameter is uniquely defined through one-loop renormalization.

Keywords

Large Hadron Collider Parton Shower Renormalization Scheme Lead Order Large Hadron Collider Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We acknowledge discussions with R. Nisius and S. Martí. We also thank T. Sjostrand for his comments and suggestions to study the color reconnection effects and M. Mangano for his comments on the manuscript. This work is partially supported by the Helmholtz Alliance “Physics at the Terascale” HA-101, by the German Federal Ministry for Education and Research (05H12KHE), by the Spanish Ministry of Economy and Competitivity (FPA2012-39055-C02-01 and AIC-D-2011-0688), by the German Research Foundation (DFG) through SFB-TR9 (B1), and by the European Commission through contract PITN-GA-2010-264564 (LHCPhenoNet).

References

  1. 1.
    T. Aaltonen et al., Phys. Rev. D (2012) Google Scholar
  2. 2.
    V.M. Abazov et al., Phys. Lett. B 703, 422 (2011). doi: 10.1016/j.physletb.2011.08.015 ADSCrossRefGoogle Scholar
  3. 3.
    J. Beringer et al., Phys. Rev. D 86, 010001 (2012). doi: 10.1103/PhysRevD.86.010001 ADSCrossRefGoogle Scholar
  4. 4.
    G. Aad et al., Phys. Lett. B 716, 1 (2012). doi: 10.1016/j.physletb.2012.08.020 ADSCrossRefGoogle Scholar
  5. 5.
    S. Chatrchyan et al., Phys. Lett. B 716, 30 (2012). doi: 10.1016/j.physletb.2012.08.021 ADSCrossRefGoogle Scholar
  6. 6.
    S. Heinemeyer, W. Hollik, D. Stockinger, A. Weber, G. Weiglein, J. High Energy Phys. 0608, 052 (2006). doi: 10.1088/1126-6708/2006/08/052 ADSCrossRefGoogle Scholar
  7. 7.
    G. Degrassi, S. Di Vita, J. Elias-Miro, J.R. Espinosa, G.F. Giudice et al., J. High Energy Phys. 1208, 098 (2012). doi: 10.1007/JHEP08(2012)098 ADSCrossRefGoogle Scholar
  8. 8.
    S. Alekhin, A. Djouadi, S. Moch, Phys. Lett. B 716, 214 (2012). doi: 10.1016/j.physletb.2012.08.024 ADSCrossRefGoogle Scholar
  9. 9.
    M.S. Bilenky, S. Caberera, J. Fuster, S. Marti, G. Rodrigo et al., Phys. Rev. D 60, 114006 (1999). doi: 10.1103/PhysRevD.60.114006 ADSCrossRefGoogle Scholar
  10. 10.
    U. Langenfeld, S. Moch, P. Uwer, Phys. Rev. D 80, 054009 (2009). doi: 10.1103/PhysRevD.80.054009 ADSCrossRefGoogle Scholar
  11. 11.
    M. Aliev, H. Lacker, U. Langenfeld, S. Moch, P. Uwer et al., Comput. Phys. Commun. 182, 1034 (2011). doi: 10.1016/j.cpc.2010.12.040 ADSzbMATHCrossRefGoogle Scholar
  12. 12.
    S. Dittmaier, P. Uwer, S. Weinzierl, Phys. Rev. Lett. 98, 262002 (2007). doi: 10.1103/PhysRevLett.98.262002 ADSCrossRefGoogle Scholar
  13. 13.
    S. Dittmaier, P. Uwer, S. Weinzierl, Eur. Phys. J. C 59, 625 (2009). doi: 10.1140/epjc/s10052-008-0816-y ADSCrossRefGoogle Scholar
  14. 14.
    S. Alioli, S.O. Moch, P. Uwer, J. High Energy Phys. 1201, 137 (2012). doi: 10.1007/JHEP01(2012)137 ADSCrossRefGoogle Scholar
  15. 15.
    S.D. Ellis, D.E. Soper, Phys. Rev. D 48, 3160 (1993). doi: 10.1103/PhysRevD.48.3160 ADSCrossRefGoogle Scholar
  16. 16.
    M. Cacciari, G.P. Salam, G. Soyez, J. High Energy Phys. 0804, 063 (2008). doi: 10.1088/1126-6708/2008/04/063 ADSCrossRefGoogle Scholar
  17. 17.
    M. Cacciari, G.P. Salam, G. Soyez, Eur. Phys. J. C 72, 1896 (2012). doi: 10.1140/epjc/s10052-012-1896-2 ADSCrossRefGoogle Scholar
  18. 18.
    P.M. Nadolsky et al., Phys. Rev. D 78, 013004 (2008). doi: 10.1103/PhysRevD.78.013004 ADSCrossRefGoogle Scholar
  19. 19.
    H.L. Lai, J. Huston, S. Mrenna, P. Nadolsky, D. Stump et al., J. High Energy Phys. 1004, 035 (2010). doi: 10.1007/JHEP04(2010)035 ADSCrossRefGoogle Scholar
  20. 20.
    A. Martin, W. Stirling, R. Thorne, G. Watt, Eur. Phys. J. C 63, 189 (2009). doi: 10.1140/epjc/s10052-009-1072-5 ADSCrossRefGoogle Scholar
  21. 21.
    S. Alekhin, J. Blumlein, S. Moch, Phys. Rev. D 86, 054009 (2012). doi: 10.1103/PhysRevD.86.054009 ADSCrossRefGoogle Scholar
  22. 22.
    S. Alioli, P. Nason, C. Oleari, E. Re, J. High Energy Phys. 1006, 043 (2010). doi: 10.1007/JHEP06(2010)043 ADSCrossRefGoogle Scholar
  23. 23.
    S. Frixione, P. Nason, G. Ridolfi, J. High Energy Phys. 0709, 126 (2007). doi: 10.1088/1126-6708/2007/09/126 ADSCrossRefGoogle Scholar
  24. 24.
    A. Kardos, C. Papadopoulos, Z. Trocsanyi, Phys. Lett. B 705, 76 (2011). doi: 10.1016/j.physletb.2011.09.080 ADSCrossRefGoogle Scholar
  25. 25.
    T. Sjöstrand, S. Mrenna, P.Z. Skands, Comput. Phys. Commun. 178, 852 (2008). doi: 10.1016/j.cpc.2008.01.036 ADSzbMATHCrossRefGoogle Scholar
  26. 26.
    R. Frederix, F. Maltoni, J. High Energy Phys. 0901, 047 (2009). doi: 10.1088/1126-6708/2009/01/047 ADSCrossRefGoogle Scholar
  27. 27.
    S. Frixione, B.R. Webber, J. High Energy Phys. 0206, 029 (2002) ADSCrossRefGoogle Scholar
  28. 28.
    G. Corcella, I. Knowles, G. Marchesini, S. Moretti, K. Odagiri et al., J. High Energy Phys. 0101, 010 (2001) ADSCrossRefGoogle Scholar
  29. 29.
    G. Corcella, I. Knowles, G. Marchesini, S. Moretti, K. Odagiri et al. (2002). HERWIG 6.5 release note. arXiv:hep-ph/0210213
  30. 30.
    P.Z. Skands, D. Wicke, Eur. Phys. J. C 52, 133 (2007). doi: 10.1140/epjc/s10052-007-0352-1 ADSCrossRefGoogle Scholar
  31. 31.
    T. Sjostrand, S. Mrenna, P.Z. Skands, J. High Energy Phys. 0605, 026 (2006). doi: 10.1088/1126-6708/2006/05/026 ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2013

Authors and Affiliations

  • S. Alioli
    • 1
  • P. Fernandez
    • 2
  • J. Fuster
    • 2
  • A. Irles
    • 2
  • S. Moch
    • 3
    • 4
  • P. Uwer
    • 5
    Email author
  • M. Vos
    • 2
  1. 1.LBNL & UC BerkeleyBerkeleyUSA
  2. 2.IFICUniversitat de València and CSICPaternaSpain
  3. 3.II. Inst. für Theoretische PhysikUniversität HamburgHamburgGermany
  4. 4.DESYZeuthenGermany
  5. 5.Humboldt-Universität zu BerlinBerlinGermany

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