Abstract
In supersymmetric scenarios with a long-lived stau, the LHC experiments provide us with a great environment for precise mass measurements of superparticles. We study a case in which the mass differences between the lightest stau and other sleptons are ∼ 10 GeV or larger, so that the decay products of heavier sleptons are hard enough to be detected. We demonstrate that the masses of neutralinos, sleptons, and squarks can be measured with a good accuracy.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
M. Drees and X. Tata, Signals for heavy exotics at hadron colliders and supercolliders, Phys. Lett. B 252 (1990) 695 [SPIRES].
J.L. Feng and T. Moroi, Tevatron signatures of longlived charged sleptons in gauge mediated supersymmetry breaking models, Phys. Rev. D 58 (1998) 035001 [hep-ph/9712499] [SPIRES].
S.P. Martin and J.D. Wells, Cornering gauge-mediated supersymmetry breaking with quasi-stable sleptons at the Tevatron, Phys. Rev. D 59 (1999) 035008 [hep-ph/9805289] [SPIRES].
A. Nisati, S. Petrarca and G. Salvini, On the possible detection of massive stable exotic particles at the LHC, Mod. Phys. Lett. A 12 (1997) 2213 [hep-ph/9707376] [SPIRES].
G. Polesello and A. Rimoldi, Reconstruction of quasi-stable charged sleptons in the ATLAS Muon Spectromete, ATL-MUON-99-006.
S. Ambrosanio, B. Mele, S. Petrarca, G. Polesello and A. Rimoldi, Measuring the SUSY breaking scale at the LHC in the slepton NLSP scenario of GMSB models, JHEP 01 (2001) 014 [hep-ph/0010081] [SPIRES].
J. Ellis, A.R. Raklev and O.K. Oye, Measuring massive metastable charged particles with ATLAS RPC timing information, ATL-PHYS-PUB-2007-016 [ATLCOM-PHYS-2006-093].
I. Hinchliffe and F.E. Paige, Measurements in gauge mediated SUSY breaking models at LHC, Phys. Rev. D 60 (1999) 095002 [hep-ph/9812233] [SPIRES].
J.R. Ellis, A.R. Raklev and O.K. Oye, Gravitino dark matter scenarios with massive metastable charged sparticles at the LHC, JHEP 10 (2006) 061 [hep-ph/0607261] [SPIRES].
M. Ibe and R. Kitano, Sweet spot supersymmetry, JHEP 08 (2007) 016 [arXiv:0705.3686] [SPIRES].
J.L. Feng, S.T. French, C.G. Lester, Y. Nir and Y. Shadmi, The shifted peak: resolving nearly degenerate particles at the LHC, Phys. Rev. D 80 (2009) 114004 [arXiv:0906.4215] [SPIRES].
J.L. Feng et al., Measuring slepton masses and mixings at the LHC, arXiv:0910.1618 [SPIRES].
A. Rajaraman and B.T. Smith, Determining spins of metastable sleptons at the Large Hadron Collider, Phys. Rev. D 76 (2007) 115004 [arXiv:0708.3100] [SPIRES].
W. Buchmüller, K. Hamaguchi, M. Ratz and T. Yanagida, Supergravity at colliders, Phys. Lett. B 588 (2004) 90 [hep-ph/0402179] [SPIRES].
K. Hamaguchi, Y. Kuno, T. Nakaya and M.M. Nojiri, A study of late decaying charged particles at future colliders, Phys. Rev. D 70 (2004) 115007 [hep-ph/0409248] [SPIRES].
J.L. Feng and B.T. Smith, Slepton trapping at the large hadron and international linear colliders, Phys. Rev. D 71 (2005) 015004 [Erratum ibid. D 71 (2005) 019904] [hep-ph/0409278] [SPIRES].
K. Ishiwata, T. Ito and T. Moroi, Long-lived unstable superparticles at the LHC, Phys. Lett. B 669 (2008) 28 [arXiv:0807.0975] [SPIRES].
R. Kitano, Study of chargino-neutralino production at hadron colliders in a long-lived slepton scenario, JHEP 11 (2008) 045 [arXiv:0806.1057] [SPIRES].
M. Kawasaki, K. Kohri, T. Moroi and A. Yotsuyanagi, Big-bang nucleosynthesis and gravitino, Phys. Rev. D 78 (2008) 065011 [arXiv:0804.3745] [SPIRES].
F.E. Paige, S.D. Protopopescu, H. Baer and X. Tata, ISAJET 7.69: a Monte Carlo event generator for pp, \(\bar{p}p \) and e + e − reactions, hep-ph/0312045 [SPIRES].
G. Corcella et al., HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes), JHEP 01 (2001) 010 [hep-ph/0011363] [SPIRES].
G. Corcella et al., HERWIG 6.5 release note, hep-ph/0210213 [SPIRES].
S. Moretti, K. Odagiri, P. Richardson, M.H. Seymour and B.R. Webber, Implementation of supersymmetric processes in the HERWIG event generator, JHEP 04 (2002) 028 [hep-ph/0204123] [SPIRES].
http://www.physics.ucdavis.edu/˜conway/research/research.html.
M. Dine, A.E. Nelson and Y. Shirman, Low-energy dynamical supersymmetry breaking simplified, Phys. Rev. D 51 (1995) 1362 [hep-ph/9408384] [SPIRES].
M. Dine, A.E. Nelson, Y. Nir and Y. Shirman, New tools for low-energy dynamical supersymmetry breaking, Phys. Rev. D 53 (1996) 2658 [hep-ph/9507378] [SPIRES].
H. Bachacou, I. Hinchliffe and F.E. Paige, Measurements of masses in SUGRA models at CERN LHC, Phys. Rev. D 62 (2000) 015009 [hep-ph/9907518] [SPIRES].
T. Ito, R. Kitano and T. Moroi, in preparation.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 0910.5853
Rights and permissions
About this article
Cite this article
Ito, T., Kitano, R. & Moroi, T. Measurement of the superparticle mass spectrum in the long-lived stau scenario at the LHC. J. High Energ. Phys. 2010, 17 (2010). https://doi.org/10.1007/JHEP04(2010)017
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP04(2010)017