Erratum: Landscape of Supersymmetric Particle Mass Hierarchies and their Signature Space at the CERN Large Hadron Collider [Phys. Rev. Lett.<b>99</b>, 251802 (2007)]

Feldman, Daniel; Liu, Zuowei; Nath, Pran

doi:10.1103/physrevlett.100.069902

Cited by 47 publications

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“…We label these as mSUGRA pattern 1 (mSP1) through mSUGRA pattern 22 (mSP22), the first 16 arising for µ > 0 and the remaining for µ < 0 [4]. In Table(1) we exhibit these mass orderings.…”

Section: Resolving the Sparticle Landscapementioning

confidence: 94%

“…For the case of non universal SUGRA models, 15 new mass patterns are uncovered labeled NUSP (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). In a class of models based on Dbranes (to be discussed shortly), 6 more new patterns labeled as DBSP(1-6) are also revealed.…”

Section: Nuspmentioning

confidence: 99%

“…Thus the confluence of LHC signatures and signatures of dark matter play a central role in understanding the predictions of the above models. This connection is illuminated through knowledge of the possible sparticle mass hierarchies that can arise [4]. These mass hierarchies include the possibility of light scalars.…”

Section: Dual Probes Of Susymentioning

confidence: 99%

“…We begin with the Sparticle Landscape [4]. Of the 32 massive particles predicted in the MSSM, the number of ways in which the sparticle masses can stack up in their mass hierarchy is a priori undetermined unless an underlying framework is specified.…”

Section: Resolving the Sparticle Landscapementioning

confidence: 99%

“…Regarding the Post-WMAP points, these are predominantly stau-coannihilation models, and one model which resides on the Hyperbolic Branch. The CMS benchmarks classified as (Low/High) Mass (LM)/(HM) [32] do a better job of representing mSP1 which is one of several dominant patterns, however, again the mapping only covers mSP(1,3,5,7) (see [4] for details). One such example of a missing class of mass hierarchies are the Higgs Patterns mSP(14-16) (HPs) [4] which occur for large tan β in mSUGRA (but occur mSP Mass Pattern more generally at lower values in NUSUGRA) where the CP odd/heavier CP even Higgses are in fact the lightest particles beyond the LSP neutralino and in some cases they can be even lighter (we remind the reader that the Higgses are RParity even).…”

Section: Resolving the Sparticle Landscapementioning

confidence: 99%

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Superparticle Signatures: from PAMELA to the LHC

Feldman

2010

Nuclear Physics B - Proceedings Supplements

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Signatures of soft supersymmetry breaking at the CERN LHC and in dark matter experiments are discussed with focus drawn to light superparticles, and in particular light gauginos and their discovery prospects. Connected to the above is the recent PAMELA positron anomaly and its implications for signatures of SUSY in early runs at the Large Hadron Collider. Other new possibilities for physics beyond the Standard Model are also briefly discussed. Dual Probes of SUSYWe review here testable predictions of high scale models with universal and non universal soft [supersymmetry] 1 breaking within the framework of applied supergravity (SUGRA) and effective models of string theories with D-branes supporting chiral gauge theories (for recent related reviews see [2,3]). Common to all these models are the ingredients needed for working in the predictive SUGRA framework, namely: (a) an effective Kähler metric which generally depends on moduli, (b) a gauge kinetic function also dependent on such scalars, and (c) a superpotential comprised of visible and hidden sector fields and a bilinear term for the Higgses.An important set of predictions of the models discussed here is that they can offer the possibility of a relatively light gluino and electroweak gauginos with dark matter which is naturally Majorana. Thus the confluence of LHC signatures and signatures of dark matter play a central role in understanding the predictions of the above models. This connection is illuminated through knowledge of the possible sparticle mass hierarchies that can arise [4]. These mass hierarchies include the possibility of light scalars. However, naturalness/radiative electroweak symmetry breaking (REWSB) tend to point us to light gauginos and heavy squarks which generally occur on the upper Hyperbolic Branch (HB) of REWSB [6] often re-1 For recent clear reviews see [1] ferred to as the focus point (FP) region. This region naturally arises in the minimal supergravity framework [7] and its extensions which are typically perturbations around universality.Towards the end of this overview we will further discuss the connection between dark matter and the LHC, but more specifically in terms of the link between the WMAP data and the recent PAMELA positron excess [8]. Should the PAMELA anomaly be attributed to SUSY dark matter, the eigen-composition of the LSP plays a very relevant role. In addition, the composition of the LSP has important implications for collider signatures, and thus a direct bearing on the discovery prospects of SUSY at LHC, as well as the very nature of how dark matter was produced in the early universe. Resolving the Sparticle LandscapeWe begin with the Sparticle Landscape [4]. Of the 32 massive particles predicted in the MSSM, the number of ways in which the sparticle masses can stack up in their mass hierarchy is a priori undetermined unless an underlying framework is specified. Thus, if the 32 masses are treated as essentially all independent, then aside from sum rules on the Higgs, sfermions, and gaugino masses, and without im...

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“…We label these as mSUGRA pattern 1 (mSP1) through mSUGRA pattern 22 (mSP22), the first 16 arising for µ > 0 and the remaining for µ < 0 [4]. In Table(1) we exhibit these mass orderings.…”

Section: Resolving the Sparticle Landscapementioning

confidence: 94%

Section: Nuspmentioning

confidence: 99%

Section: Dual Probes Of Susymentioning

confidence: 99%

Section: Resolving the Sparticle Landscapementioning

confidence: 99%

Section: Resolving the Sparticle Landscapementioning

confidence: 99%

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Superparticle Signatures: from PAMELA to the LHC

Feldman

2010

Nuclear Physics B - Proceedings Supplements

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Supersymmetry after the Higgs

Nath

2015

Annalen der Physik

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A brief review is given of the implications of a 126 GeV Higgs boson for the discovery of supersymmetry. Thus a 126 GeV Higgs boson is problematic within the Standard Model because of vacuum instability pointing to new physics beyond the Standard Model. The problem of vacuum stability is overcome in the SUGRA GUT model but the 126 GeV Higgs mass implies that the average SUSY scale lies in the several TeV region. The largeness of the SUSY scale relieves the tension on SUGRA models since it helps suppress flavor changing neutral currents and CP violating effects and also helps in extending the proton life time arising from baryon and lepton number violating dimension five operators. The geometry of radiative breaking of the electroweak symmetry and fine tuning in view of the large SUSY scale are analyzed.Consistency with the Brookhaven g μ − 2 result is discussed. It is also shown that a large SUSY scale implied by the 126 GeV Higgs boson mass allows for light gauginos (gluino, charginos, neutralinos) and sleptons. These along with the lighter third generation squarks are the prime candidates for discovery at RUN II of the LHC. Implication of the 126 GeV Higgs boson for the direct search for dark matter is discussed. Also discussed are the sparticles mass hierarchies and their relationship with the simplified models under the Higgs boson mass constraint.In 2012 the Large Hadron Collider (LHC) made a landmark discovery of a new boson. Thus the CMS and AT-LAS collaborations discovered a boson with a mass of ∼126 GeV [1][2][3][4]. It is now confirmed that this newly discovered particle is the long sought after Higgs boson [5][6][7][8] which plays a central role in the breaking of the electroweak symmetry. While the observed particle is the last missing piece of the Standard Model there are strong indications that at the same time its discovery portends discovery of a new realm of physics specifically supersymmetry. Below we elaborate on this theme in further detail.The outline of the rest of the paper is as follows: In Section 1 we discuss the status of the Higgs boson in the Standard Model, the issue of vacuum instability and the need for new physics beyond the Standard Model. In Section 2 we consider the implications of a 126 GeV Higgs boson within the framework of supersymmetry and specifically in the framework of supergravity unified models. As is well known a 126 GeV Higgs boson within supersymmetry leads to a high SUSY scale M s with M s lying in the TeV region. On the other hand the Brookhaven g μ − 2 experiment [9] shows a 3σ deviation from the Standard Model prediction [10,11]. An effect of this size requires that the average scale of sparticle masses entering the loops in the supersymmetric electroweak correction to g μ − 2 be low, i..e, O(100) GeV. Assuming the 3σ effect is robust we discuss in Section 3 how to reconcile the high SUSY scale that is indicated by the 126 GeV Higgs boson mass with the low SUSY scale indicated by the Brookhaven experiment. In Section 4 we discuss the implications of the Higgs ...

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