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- E Accomando, R Arnowitt, B Dutta, Y Santoso
- 2000

The neutralino-proton cross section is examined for supergravity models with R-parity invariance with universal and non-universal soft breaking. The region of parameter space that dark matter detectors are currently (or will be shortly) sensitive i.e. (0.1 − 10) × 10 −6 pb, is examined. For universal soft breaking (mSUGRA), detectors with sensitivity σ ˜ χ… (More)

- R Arnowitt, B Dutta, Y Santoso
- 2001

Coannihilation effects in neutralino relic density calculations are examined for a full range of supersymmetry parameters including large tan β and large A 0 for stau, chargino, stop and sbottom coannihilation with the neutralino. Supergravity models possessing grand unification with universal soft breaking (mSUGRA), models with nonuniversal soft breaking… (More)

- R Arnowitt, J Dent
- 2005

It is a great pleasure to present this work in honor of Pran Nath, whose many important contributions to quantum field theory, supergravity grand unification, and their consequences have been on the forefront of modern particle physics. We examine the gravitational forces in a brane-world scenario felt by point particles on two 3-branes bounding a… (More)

- Frank E. Paige, FRANK E. PAIGE, Richard Arnowitt, Ali Chamseddine
- 2003

This talk summarizes work by the ATLAS Collaboration at the CERN Large Hadron Collider on the search SUSY particles and Higgs bosons and on possible measurements of their properties. This talk summarizes work by the ATLAS Collaboration at the CERN Large Hadron Collider on the search SUSY particles and Higgs bosons and on possible measurements of their… (More)

- R Arnowitt, B Dutta
- 2002

We consider here the constraints in SUGRA models on the SUSY parameter space due to current experimental bounds on the light Higgs mass m h , the b → sγ decay, the amount of neutralino cold dark matter Ωh 2 , and the muon magnetic moment. Models with universal soft breaking (mSUGRA) and non-universal gaugino or Higgs masses at M G are examined. For mSUGRA,… (More)

- Christopher N. Pope, Richard L. Arnowitt, Stephen A. Fulling, Tuan Anh Tran, Igor Lavrinenko, Mihail Mihailescu +1 other
- 2001

This dissertation is devoted to deriving the bosonic sectors of certain gauged supergravities in various dimensions from reducing eleven-dimensional supergravity, type IIA and type IIB supergravities in ten dimensions on certain spherical spaces. Explicit non-linear Kaluza-Klein ansätze for reductions of eleven-dimensional super-gravity and of type IIA and… (More)

We study the feasibility of detecting the stau neutralino (˜ τ 1-˜ χ 0 1) coannihilation region at the LHC using tau (τ) leptons. The signal is characterized by multiple low energy τ leptons from˜χ 0 2 → τ ˜ τ 1 → τ τ ˜ χ 0 1 decays, where the˜τ 1 and˜χ 0 1 mass difference (∆M) is constrained to be 5-15 GeV by current experimental bounds including the bound… (More)

Recent developments constraining the SUSY parameter space are reviewed within the framework of SUGRA GUT models. The WMAP data is seen to reduce the error in the density of cold dark matter by about a factor of four, implying that the lightest stau is only 5-10 GeV heavier than the lightest neutralino when m0, m 1/2 < 1 TeV. The CMD-2 re-analysis of their… (More)

- R Arnowitt, And B Dutta
- 2002

We review the current status of the Brookhaven muon g-2 experiment, and it's effects on the SUSY parameter space when combined with dark matter relic density bounds, b → sγ and Higgs mass constraints. If the 3σ deviation of g-2 from the Standard Model value is correct, these data constrain the mSUGRA parameter space strongly, i.e. 300 GeV < ∼ m 1/2 < ∼ 850… (More)

- R Arnowitt, B Dutta, Y Santoso
- 2001

The electron electric dipole moment (d e) and the muon magnetic moment anomaly (a µ) recently observed at BNL are analyzed within the framework of SUGRA models with CP violating phases at the GUT scale. It is seen analytically that even if d e were zero, there can be a large Bino mass phase (ranging from 0 to 2π) with a corresponding large B soft breaking… (More)