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Topic: Minimal Supersymmetric Standard Model

Related Topics

Superpotential

Supersymmetric

Standard Model

Supersymmetry breaking

Supersymmetry

Soft SUSY breaking

Hierarchy problem

Spontaneous symmetry breaking

Supersymmetry breaking scale

Quantum harmonic oscillator

Relevant operator

Planck units

Vacuum state

Stationary point

Planck mass

	mssm
		In the supersymmetric extension, the fact that these couplings are determined in terms of known gauge couplings leads to an important prediction for the Z mass when studying the electroweak symmetry breaking pattern.
		This was explored in the first realizations of the supersymmetric extensions of the standard model, but subsequently was neglected in favor of the supergravity messenger.
		In this scheme the lightest supersymmetric particle is the gravitino.
	socrates.berkeley.edu /~noise/mssm.html (945 words)

	Minimal Supersymmetric Standard Model - Wikipedia, the free encyclopedia
		The Higgs mass of the Standard Model is unstable to quantum corrections and the theory predicts that weak scale should be much weaker than what is observed to be.
		The MSSM imposes R-parity to explain the stability of the proton.
		The original motivation for proposing the MSSM was to stabilize the Higgs mass to radiative corrections that are quadratically divergent in the Standard Model (hierarchy problem).
	en.wikipedia.org /wiki/Minimal_Supersymmetric_Standard_Model (2390 words)

	Supersymmetry to the rescue? - 3
		A supersymmetric particle model consists of a collection of particle supermultiplets and a set of potentials that describe the interactions between the particles.
		When all of the Standard Model fields are expressed in terms of chiral and gauge multiplets, and interactions terms are added, the resulting particle theory is called the Minimal Supersymmetric Standard Model, or MSSM for short.
		The particles predicted by the Minimal Supersymmetric Standard Model are all of the particles that are already observed in the Standard Model, plus one extra Higgs doublet, and the supersymmetry partners of those particles.
	www.superstringtheory.com /experm/exper4a2.html (883 words)

	HEP Seminar Abstracts
		The present status of precision tests of the electroweak Standard Model (SM) is summarized and the resulting indirect constraints on the mass of the SM Higgs boson are discussed.
		In the Minimal Supersymmetric extension of the Standard Model (MSSM) the mass of the lightest Higgs boson is not a free parameter as in the SM, and a firm upper bound can be established.
		The possible interplay between the LHC and a future Linear Collider in analyzing the mechanism of electroweak symmetry breaking and the underlying structure of Supersymmetric models is investigated.
	hep.uchicago.edu /seminars/HEPSemSpr03Abstracts.html (399 words)

	2. Supersymmetry
		Unfortunately, this leads to a lack of predictive power--just as the masses in the Standard Model all the particle masses are arbitrary and must be measured, the same is true in the MSSM.
		In the Standard Model, we don't bother distinguishing between left- and right-handed fermions, since they have the same mass and can be easily converted into each other by flipping the spins.
		Their supersymmetric partners are spin-0, so the partner of the left-handed fermion can be completely unrelated to the partner of the right-handed fermion, so the sfermions appear as two different states with different masses.
	hep-www.colorado.edu /~nlc/SUSY_Wagner/susy/node2.html (817 words)

	The Minimal Supersymmetric Standard Model
		If the particle spectrum of the MSSM appears unappealing, fortunately this is not the case for the gauge interactions, where a particle and its superpartner have identical interactions, e.g.
		In its most general formulation, the MSSM introduces a total of 105 new free parameters, which are obviously too many to construct a model that is able to make any predictions.
		The assumptions made above may seem quite arbritrary, but by considering SUSY models where supersymmetry is promoted from a global to a local symmetry, that automatically incorporates gravity and also take into account the mechanism of the breaking of supersymmetry, in this so-called Supergravity models, these assumptions follow quite naturally (for a review see e.g.
	www.physto.se /~lipniack/neut/lic/lic_html/node25.html (482 words)

	Supersymmetry and Precision Experiments
		In the standard model the Higgs mass is arbitrary.
		It is given by the squares of gauge couplings, with the result that all supersymmetric models have at least one Higgs scalar that is relatively light, typically with a mass similar to the Z mass.
		The MSSM yields a better fit to the precision data than the standard model [26], but that is mainly due to the anomalous experimental value of
	dept.physics.upenn.edu /~pgl/precision/paris/node5.html (538 words)

	MSSM
		The Standard Model (SM) of particle physics has been confirmed precisely in a wide variety of experiments.
		In the minimal supersymmetric extension of the Standard Model (MSSM), each SM particle is accompanied by a superpartner with the same gauge quantum numbers as given in Table 1.
		In order to write down a theory that is supersymmetric, one requires two Higgs doublets with hypercharges 1 and -1, respectively, in contrast to the SM where one Higgs doublet suffices.
	www.krl.caltech.edu /~subZ/content/theory/MSSM/MSSM.html (1629 words)

	What about string theory?
		So supersymmetric theories are good places to look for exotic matter in the form of fermionic superpartners of bosonic particles that carry forces.
		In the Standard Model of particle physics, recall there is a spontaneously broken symmetry that gives mass to the weak interaction gauge bosons through the Higgs potential.
		One advantage to this model is that it incorporates the very stringy behavior of T duality and the self dual point, so it is a very inherently stringy cosmology.
	superstringtheory.com /cosmo/cosmo5a.html (895 words)

	CiteULike: Particle Physics Approach to Dark Matter (Site not responding. Last check: 2007-10-13)
		We present a supersymmetric grand unified model leading to violation of Yukawa unification and, thus, allowing an acceptable b-quark mass within the constrained minimal supersymmetric standard model with mu>0.
		The model possesses a wide range of parameters consistent with the data on the cold dark matter abundance as well as other phenomenological constraints.
		Its relic abundance in the constrained minimal supersymmetric standard model can be reduced to acceptable values by pole annihilation of neutralinos or neutralino-stau coannihilation.
	www.citeulike.org /article/494228 (453 words)

	Rabindra Nath Mohapatra (Site not responding. Last check: 2007-10-13)
		Recently, we have shown that if one uses the so-called type II seesaw mechanism, then a minimal SO(10) model very naturally predicts the solar and atmospheric neutrino mixing angles to be large in agreement with experiment and the reactor angle $\theta_{13}$ to be small.
		The minimal supersymmetric extension of the standard model has however severe problems explaining the observed smallness of flavor violating effects as well as the CP violating effects.
		Recently, we have advocated that if MSSM is the low energy effective theory emerging from a left-right gauge structure, the CP problems may be solved completely; similarly, the embedding of MSSM into a local horizontal symmetry may solve the flavor problem.
	www.physics.umd.edu /ep/mohapatra/mohapatra.html (451 words)

	Modern Supersymmetry: Bibliography
		Polonsky, "Supersymmetry Structure and Phenomena---Extensions of the Standard Model", (Springer-Verlag, Heidelberg, 2001), hep-ph/0108236.
		Batra, A. Delgado, D. Kaplan and T. Tait, "The Higgs Mass Bound in Gauge Extensions of the Minimal Supersymmetric Standard Model," JHEP 0402 (2004) 043, hep-ph/0309149; R.
		Berkooz, "The Dual of Supersymmetric SU(2k) with an Antisymmetric Tensor and Composite Dualities," Nucl.
	particle.physics.ucdavis.edu /modernsusy/biblio.html (5330 words)

	R-parity
		The general superpotential of MSSM contains terms where the baryon and the lepton numbers are violated.
		It is a multiplicative quantum number where all the particles of the Standard Model have positive R-parity, while their superpartners have negative R-parity, where the quantum number is given by
		for a particle with spin S and baryon- and lepton number B and L. This symmetry has a great influence of the phenomenology of the MSSM, since it requires that supersymmetric particles always are produced in pairs.
	www.physto.se /~lipniack/neut/lic/lic_html/node26.html (172 words)

	CiteULike: Search for Neutral Higgs Bosons of the Minimal Supersymmetric Standard Model Decaying to tau Pairs in ... (Site not responding. Last check: 2007-10-13)
		We present a search for neutral supersymmetric Higgs bosons decaying to pairs produced in p p collisions at s p 1:96 TeV.
		No significant excess above the standard model backgrounds is observed.
		The data, corresponding to 310 pb1 integrated luminosity, were collected with the Collider Detector at Fermilab in run II of the Tevatron.
	www.citeulike.org /user/anthonares/article/461288 (295 words)

	Notes NMSSM (Site not responding. Last check: 2007-10-13)
		A model that is the MSSM plus an extra singlet higgs[1].
		In [2] the authors analyze the neutralino sector assuming that doublet-singlet mixing is minimal, and are able to come up with approximate expressions for the mass eigenvalues in this limit.
		[2] Choi, Miller, Zerwas, The Neutralino Sector of the Next-to-Minimal Supersymmetric Standard Model
	mcelrath.org /Notes/NMSSM (176 words)

	THEORY AND PHENOMENOLOGY OF SPARTICLES
		Part Two describes the supersymmetrization of the Standard Model of particle interactions as well as the origin of soft supersymmetry breaking and how it can be mediated from higher energies.
		Search strategies for sparticles, supersymmetric Higgs bosons, nonminimal scenarios and cosmological implications are some of the other topics covered.
		Appendices list all Feynman rules for the vertices of the Minimal Supersymmetric Standard Model.
	www.worldscibooks.com /physics/4001.html (328 words)

	Renormalization group evolution and infrared fixed points in the minimal supersymmetric standard model with baryon and ...
		Renormalization group evolution and infrared fixed points in the minimal supersymmetric standard model with baryon and lepton number violation
		Ananthanarayan, B and Pandita, PN (2000) Renormalization group evolution and infrared fixed points in the minimal supersymmetric standard model with baryon and lepton number violation.
		We study the renormalization group evolution and infrared stable fixed points of the Yukawa couplings and the soft supersymmetry breaking trilinear couplings of the minimal supersymmetric standard model with baryon and lepton number and R-parity!
	eprints.iisc.ernet.in /archive/00007958 (290 words)

	abstract_ric_1 (Site not responding. Last check: 2007-10-13)
		baryogenesis in the next-to-minimal supersymmetric standard model (NMSSM).
		severely constrains the low $\tan \beta$ region of the minimal supersymmetric
		MSSM with regard to fine-tuning and electroweak baryogenesis.
	www.roma3.infn.it /leptre/abstract_ric_15.html (60 words)

	Citebase - Minimal Nonminimal Supersymmetric Standard Model (Site not responding. Last check: 2007-10-13)
		Authors: Panagiotakopoulos, C. Pilaftsis, A. We review the basic field-theoretic and phenomenological features of the recently introduced Minimal Nonminimal Supersymmetric Standard Model (MNSSM).
		The introduced model is the simplest and most economic version among the proposed nonminimal supersymmetric models, in which the so-called μ-problem can be successfully addressed.
		As opposed to the MSSM and the frequently-discussed NMSSM, the MNSSM can naturally predict the existence of a light charged Higgs boson with a mass smaller than 100 GeV.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-ph/0210266 (172 words)

	Physics 284 Syllabus
		Lectures on supersymmetric gauge theories and electric-magnetic duality by K.
		The Minimal Supersymmetric Standard Model: Part I, pdf
		The Minimal Supersymmetric Standard Model: Part II, pdf
	t8web.lanl.gov /people/terning/teaching (92 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		Manuscript Title: HDECAY: a program for Higgs boson decays in the standard model and its supersymmetric extension.
		Decay widths and branching ratios for Higgs boson decays in the Standard Model and the Minimal Supersymmetric Standard Model are calculated numerically, including loop corrections according to the current theoretical knowledge.
		The program calculates only decay widths and branching ratios of all types of Higgs bosons, within the Standard Model and its minimal supersymmetric extension, but no distributions.
	www.cpc.cs.qub.ac.uk /summaries/ADHB_v1_0.html (141 words)

	ECS EPrints Service - Unification Constraints int he Next-To-Minimal Supersymmetric Standard Model
		An RSS Feed of this repository is available.
		EPrints is free software developed by the University of Southampton to facilitate Open Access to research.
		Unification Constraints int he Next-To-Minimal Supersymmetric Standard Model
	eprints.ecs.soton.ac.uk /2412 (104 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		Is the minimal Standard Model the unique low-energy limit of the Minimal Supersymmetric Standard Model (MSSM)?
		It is well known that the MSSM is not the supersymmetric Minimal Standard Model because it has two Higgs doublets, not just the one.
		I will explain why this statement has implications for the Higgs sector of the MSSM far beyond those widely understood: it can generate deviations in Higgs decay ratios, new sources of CP violation, and most importantly, new sources of flavor-changing neutral currents.
	www-physics.lbl.gov /seminars/old/kolda.html (109 words)

	CP violation in [image] within the minimal supersymmetric standard model
		CP violation in [image] within the minimal supersymmetric standard model
		in the framework of the minimal supersymmetric model is presented.
		The CP-odd observables for describing the CP violating effects in polarized and unpolarized photon collisions, are calculated.
	stacks.iop.org /0954-3899/25/27 (290 words)

	Find in a Library: Minimal supersymmetric standard model parameter space exclusion by analyzing metastable scalar ...
		Find in a Library: Minimal supersymmetric standard model parameter space exclusion by analyzing metastable scalar vacuum configurations
		Minimal supersymmetric standard model parameter space exclusion by analyzing metastable scalar vacuum configurations
		WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
	worldcatlibraries.org /wcpa/ow/d5a803630a7e57f7a19afeb4da09e526.html (89 words)

	Citebase - Minimal Supersymmetric Standard Model within CompHEP software package (Site not responding. Last check: 2007-10-13)
		Minimal Supersymmetric Standard Model within CompHEP software package
		Authors: Belyaev, A. Gladyshev, A. Semenov, A. The Minimal Supersymmetric Standard Model is presented as a model for the CompHEP software package as a set of files containing the complete Lagrangian of the MSSM, particle contents and parameters.
		Various special features of the model are discussed.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-ph/9712303 (135 words)

	SPIRES-HEP: FIND C ZEPYA,C64,1
		To be published in the proceedings of 2nd International Conference on Dark Matter in Astro and Particle Physics (DARK98), Heidelberg, Germany, 20-25 Jul 1998.
		24) RESOLVING THE CONSTRAINED MINIMAL AND NEXT-TO-MINIMAL SUPERSYMMETRIC STANDARD MODELS.
		28) HIGGS PHENOMENOLOGY OF THE SUPERSYMMETRIC MODEL WITH A GAUGE SINGLET.
	usparc.ihep.su /spires/find/hep?c=ZEPYA,C64,1 (1058 words)

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