• UPDATE OF THE DIRECT DETECTION OF DARK MATTER AND THE ROLE OF THE NUCLEAR SPIN.
    By V.A. Bednyakov (Dubna, JINR), H.V. Klapdor-Kleingrothaus (Heidelberg,MaxPlanck Inst.). Nov 2000. 16pp.
    e-Print Archive: hep-ph/0011233
    This is BKK, and this is the key figure.
    Read 12/21/00. This paper explores the SUSY parameter space, and keeps the parts of the space that are consistent with current collider results as well as Big Bang production of visible and dark matter. Fewer constraints from theory are applied than in the first of the two recent works of Ellis, Ferstl, and Olive (EFO1). Nevertheless, the conclusions summarized in Figure 3 are rather similar to EFO1: cross sections tend to be beneath the sensitivity of CDMS-2.Actually, EFO2 arrive at smaller cross sections than this paper (as shown in Figure 3), but EFO2 arrives at very similar cross sections to this work. One interesting observation is that when the scalar cross section gets very small, the spin-dependent cross section can actually drive the counting rate in detectors such as 73-Ge.
  • NUCLEON SCATTERING WITH HIGGSINO AND WINO COLD DARK MATTER.
    By Brandon Murakami (UC, Davis), James D. Wells (UC, Davis & LBL, Berkeley). UCD-2000-16, LBNL-47049, Nov 2000. 16pp.
    e-Print Archive: hep-ph/0011082
    Twoup version of the postscript
    Read 12/21/00. Current thinking often is that the LSP is the Bino, and this paper gives some perspective. The Bino has the lowest annihilation cross section into our(R=+1) matter, and thus also the lowest scattering cross section on our matter.Wino or Higgsino LSP's would have higher cross sections, and thus, via thermal production in the Big Bang, lower present abundance. So Wino or Higgsino LSP's would be too scarce to explain today's Galactic rotation curves, unless a new Big Bang production mechanism exists. The authors suggest new mechanisms, which could be caused by a new type of SUSY breaking: anomaly-mediated supersymmetry breaking (AMSB); this breaking mechanism could also result in a Wino and/or Higgsino LSP. The bonus for DM experimenters would be the higher scattering cross section on our matter of Winos or Higgsinos.The authors do nice computations of the scattering cross sections. They also point out that Wino and Higgsino scenarios are harder to discover at collider experiments than Bino scenarios.
  • EXPLORATION OF ELASTIC SCATTERING RATES FOR SUPERSYMMETRIC DARK MATTER.
    By John Ellis (CERN), Andrew Ferstl (Minnesota U.), Keith A. Olive (Minnesota U. & Minnesota U., Theor. Phys. Inst.). CERN-TH-2000-188, UMN-TH-1914-00, TPI-MINN-00-36, Jul 2000. 25pp.
    e-Print Archive: hep-ph/0007113
    This is EFO2, and this is the key figure
    Read 12/21/00. An exploration of the SUSY space of parameters, constrained by contemporary data, and focused on predictions in the plane of cross section of neutralinos on nucleons versus mass of the LSP. Here, the constraints on SUSY are not as strict as EFO1, because here they allow sfermions and Higgs to have distinct masses at the unification scale. The results are qualitatively similar to BKK, namely, that the dark matter cross sections are nearly out of reach of CDMS-II.
  • INTRODUCTION TO SUPERSYMMETRY: ASTROPHYSICAL AND PHENOMENOLOGICAL CONSTRAINTS.
    By Keith A. Olive (Minnesota U.). UMN-TH-1824-99, TPI-MINN-99-49, Nov 1999. 66pp.
    Based on lectures given at NATO Advanced Study Institute: Les Houches Summer School: Session 72: Coherent Atomic Matter Waves, Les Houches, France, 27 Jul - 27 Aug 1999.
    e-Print Archive: hep-ph/9911307
    Twoup. Two nice plots are of the running masses of sparticles, and one showing regions of MSSM parameters that result in Binos and Higgsinos being the LSP.
    A SUSY review with a lot of emphasis on cosmology and dark matter.
  • A SUPERSYMMETRY PRIMER.
    By Stephen P. Martin (Michigan U.). Sep 1997. 88pp.
    In *Kane, G.L. (ed.): Perspectives on supersymmetry* 1-98.
    e-Print Archive: hep-ph/9709356
    Twoup, and S.P. Martin's update page
    A very good survey of SUSY phenomenology. Briefly covers Dark Matter, but good coverage of the underlying motivations.
  • ON IMPORTANCE OF DARK MATTER FOR LHC PHYSICS.
    By V.A. Bednyakov (Dubna, JINR). Jun 2000. 12pp.
    Talk given at International Symposium on LHC Physics and Detectors, Dubna, Russia, 28-30 Jun 2000.
    e-Print Archive: hep-ph/0011207
    Two nice figures: rotation curve for the planets of our solar system, and for the galaxy NGC 6503. A nice overview.
  • LIGHT HIGGSINO DARK MATTER.
    By Manuel Drees (Seoul National U.), Mihoko M. Nojiri (KEK, Tsukuba), D.P. Roy (Tata Inst.), Youichi Yamada (Tohoku U.). APCTP-96-06, KEK-TH-505, KEK-PREPRINT-96-156, TIFR-TH-96-62, TU-515, Dec 1996. 21pp.
    Published in Phys.Rev.D56:276-290,1997
    e-Print Archive: hep-ph/9701219
    The PRD in PDF.
    This paper focuses on Higgsino dark matter. Nominally, the cross section for Higgsino annihilation into R=+1 matter is so large that the abundance of Higgsino DM is thought to get too small. However, this paper points out that loop corrections can alter the nominal conclusion, and can maintain a high Higgsino density while enabling a large cross section for scattering Higgsinos on our matter.
  • NEUTRALINO - NUCLEON SCATTERING REVISITED.
    By Manuel Drees, Mihoko Nojiri (Wisconsin U., Madison). MAD-PH-768, Jun 1993. 42pp.
    Published in Phys.Rev.D48:3483-3501,1993 (Title changed in journal)
    e-Print Archive: hep-ph/9307208
    PDF of PRD Publication.
    One of the papers that focuses on computing the cross section and counting rate due to LSP interaction with a detector. The introduction has a very nice survey of the history of estimates of the cross section for neutralino interaction with matter. Ostensibly, this paper addresses loop corrections to the original tree level work. However, the conclusion has a nice discussion of the logical interrelationship of dark matter searches and collider searches.
  • DETECTABILITY OF CERTAIN DARK MATTER CANDIDATES.
    By Mark W. Goodman, Edward Witten (Princeton U.). Print-85-0030 (PRINCETON), Nov 1984. 20pp.
    Published in Phys.Rev.D31:3059,1985
    PDF of PRD Publication.
    One of the earlier papers that foces on computing the cross section and counting rate due to LSP interaction with a detector.
  • SUPERSYMMETRIC RELICS FROM THE BIG BANG.
    By John Ellis, J.S. Hagelin (SLAC), D.V. Nanopoulos, K. Olive, M. Srednicki (CERN). SLAC-PUB-3171, Jul 1983. 38pp. Published in Nucl.Phys.B238:453-476,1984 (Reprinted in *Lindley, D. (ed.) et al.: Cosmology and particle physics* 32-55, and in *Abbott, L.F. (ed.), Pi, S.Y. (ed.): Inflationary cosmology* 140-163)
    PDF of the SLAC PUB.
    One of the very early papers to suggest that the LSP might be the dark matter.