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Topic: Gluino

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	Gluino - Wikipedia, the free encyclopedia
		Gluinos are Majorana fermions and interact via the strong nuclear force as an octet of color.
		Gluinos are dominantly pair produced at a hadron collider.
		Gluinos decay via strong interaction to a squark and a quark provided that an appropriate mass relation is satisfied.
	en.wikipedia.org /wiki/Gluino (173 words)

	Gluino - Biocrawler (Site not responding. Last check: 2007-10-31)
		A gluino is a subatomic particle, the fermion superpartner of the gluon predicted by supersymmetry.
		Gluino condensation is one of possible mechanisms underlying supersymmetry breaking.
		You can find it there under the keyword Gluino (http://en.wikipedia.org/wiki/Gluino)The list of previous authors is available here: version history (http://en.wikipedia.org/w/index.php?title=Gluinoandaction=history).
	www.biocrawler.com /encyclopedia/Gluino (143 words)

	Search for Gluino Pairs Decaying into Sbottom Bottom
		In a scenario where the sbottom is lighter than the gluino, sbottoms could be produced through the decay of gluinos into bottom and sbottom quarks, yielding a rich signature consisting of four b-jets, and two neutralinos from the sbottom decay sbottom --> b LSP.
		Gluino 95% CL upper cross section limit as a function of gluino mass for a fix mass difference between gluino and sbottom of 60 GeV/c2 and LSP mass of 60 GeV/c2, EPS or GIF.
		Gluino 95% CL upper cross section limit as a function of sbottom mass for a fix gluino mass of 240 GeV/c2 and LSP mass of 60 GeV/c2, EPS or GIF.
	www-cdf.fnal.gov /physics/exotic/r2a/20040610.bbmet_gluinosbottom (411 words)

	Exotic baryon - Wikipedia, the free encyclopedia
		, which are bound states of 3 quarks and a gluino.
		and consists of an up quark, a down quark, a strange quark and a gluino.
		This particle is expected to be long lived or stable and has been invoked to explain ultrahigh energy cosmic rays
	en.wikipedia.org /wiki/Exotic_baryon (247 words)

	SPS: Low-energy MSSM parameters
		All mass parameters are to be understood as DRbar parameters at the scale Q = 454.7 GeV.
		Gluino mass, supersymmetric Higgs mass parameter \mu, mass of CP-odd Higgs boson A, tan_beta, electroweak gaugino mass parameters:
		All mass parameters are to be understood as DRbar parameters at the scale Q = 706.9 GeV.
	www.ippp.dur.ac.uk /~georg/sps/sps.html (949 words)

	Plots for Supersymmetry Analysis at LHC
		Values of ΔM and gluino mass obtained from Monte Carlo when ΔM and the gluino mass are measured at the same time.
		Scatter plot of ΔM and the gluino mass obtained from Monte Carlo when ΔM and the gluino mass are measured at the same time.
		We assumed the gluino mass was 850 GeV plus or minus 100 GeV, and we found the uncertainty in the number of events was approximately N. Uncertainty in ΔM vs. Percent Gluino Mass Uncertainty for L = 12 (05/18/05)
	hepr8.physics.tamu.edu /hep/stau/plots (839 words)

	Preprint KA-TP-20-1996 (Site not responding. Last check: 2007-10-31)
		In supersymmetric theories, the main decay modes of scalar quarks are decays into quarks plus charginos or neutralinos, if the gluinos are heavy enough.
		In the case of scalar top and bottom quarks, where mixing effects can be important, these corrections can reach values of the order of a few ten percent.
		They can be either positive or negative and increase logarithmically wi th the gluino mass.
	www-itp.physik.uni-karlsruhe.de /cgi-bin/wwwadm/abstract?20+1996 (109 words)

	Gluino signals in 4jet events and vertex tagging at LEP I (ResearchIndex)
		Gluino signals in 4jet events and vertex tagging at LEP I
		We present here a study of 4jets events at LEP I where the so-called light gluinos could be directly produced.
		1 Excluded regions of gluino masses and lifetimes (context) - of, masses et al.
	citeseer.ist.psu.edu /431647.html (458 words)

	Citebase - Light Gluino and Tevatron Data
		This has been shown to lead to a small gluino content of the proton.
		We use this effect to demonstrate that such a light gluino could lead to a striking enhancement, at Tevatron, of monojets accompanied by large missing momentum.
		A reanalysis of the existing data may thus rule out a light gluino for a common squark mass of upto ∼ 600 gev.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-ph/9608444 (132 words)

	Supersymmetry Analysis at LHC (Site not responding. Last check: 2007-10-31)
		Uncertainty of ΔM and gluino mass after having combined the counting method and mass method for independant determination of both ΔM and gluino mass.
		Significance of N measurement at gluino mass = 850.
		Uncertainty of ΔM vs. Luminosity for ΔM = 9 and 20 with 5% gluino mass error.
	hepr8.physics.tamu.edu /hep/stau/paper (242 words)

	The -deformation of gluino and non-planar diagrams , Hiroshi Ooguri, Cumrun Vafa
		The -deformation of gluino and non-planar diagrams, Hiroshi Ooguri, Cumrun Vafa
		We consider a deformation of N = 1 supersymmetric gauge theories in four dimensions, which we call the C-deformation, where the gluino field satisfies a Clifford-like algebra dictated by a self-dual two-form, instead of the standard Grassmannian algebra.
		The superpotential of the deformed gauge theory is computed by the full partition function of an associated matrix model (or more generally a bosonic gauge theory), including non-planar diagrams.
	projecteuclid.org /getRecord?id=euclid.atmp/1112627974 (242 words)

	UIC HEP Seminars (Site not responding. Last check: 2007-10-31)
		We discuss the implications of a light gluino (the supersymmetric partner of the gluon) on collider jet physics.
		In the light gluino scenario, squarks, i.e., the superpartners of quarks, can be copiously produced in proton-antiproton collisions, in conjunction with a gluino.
		The inclusive jet transverse energy distributions and scaling ratio appear to be a tantalizing piece of evidence for light gluinos and for squarks in the 100-130 GeV region.
	www.uic.edu /depts/phys/talks/97/clavelli.html (139 words)

	UIC HEP Seminars
		The most distinct signature is the metastable gluino.
		However, the detection of metastable gluino depends crucially on the spectrum of hadrons that it fragments into.
		Instead, here we propose another unambiguous signature by forming the gluino-gluino bound state, gluinonium, which will then annihilate into a top pair or a bottom pair.
	www.uic.edu /depts/phys/talks/04/0927.keung.shtml (122 words)

	Citebase - Gluino decays with heavier scalar superpartners
		Authors: Toharia, Manuel; Wells, James D. We compute gluino decay widths in supersymmetric theories with arbitrary flavor and CP violation angles.
		Our emphasis is on theories with scalar superpartner masses heavier than the gluino such that tree-level two-body decays are not allowed, which is relevant, for example, in split supersymmetry.
		We compute gluino decay branching fractions in several specific examples and show that it is plausible that the only accessible signal of supersymmetry at the LHC could be four top quarks plus missing energy.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-ph/0503175 (176 words)

	ABSTRACT UPRF-2003-07 (Site not responding. Last check: 2007-10-31)
		The one-loop corrections to the lattice supersymmetric Ward-Takahashi identity (WTi) are investigated in the off-shell regime.
		In the Wilson formulation of the $N=1$ supersymmetric Yang-Mills (SYM) theory, supersymmetry (SUSY) is broken by the lattice, by the Wilson term and is softly broken by the presence of the gluino mass.
		This extra mixing survives in the continuum limit in the off-shell regime and cancels out when the on-shell condition is imposed and the renormalized gluino mass is set to zero.
	www.pr.infn.it /preprints/2003/uprf0307.html (171 words)

	[No title]
		"R parity violating decays of the Gluino", with H. Stremnitzer, Phys.
		"Gluino Contributions to the 3-loop Quark Anomalous Dimension in the Minimal Supersymmetric Standard Model", with Levan Surguladze hep-ph/9806443 Phys.
		Distributions and Light Gluinos," L. Clavelli and I. Terekhov, hep-ph/9605463 Phys.
	bama.ua.edu /~lclavell (657 words)

	gluino.html (Site not responding. Last check: 2007-10-31)
		Such a study might be possible upon the completion of the E871 program.
		The R-meson,or glueballino,is a long-lived gluon-gluino bound state arising in a scenario in which the gluino and photino are very light supersymmetric particles.
		Interest in this topic has developed in response to the work of Farrar on supersymmetry.and the work of Carlson and Sher on the R meson production cross section.
	www.phy.bnl.gov /ags-2000/gluino.html (127 words)

	Light Gluino (ResearchIndex)
		A combined LEP analysis based on all the Z data and using the recent NLO calculations [3] is warranted.
		Constraints from the effect of light gluinos on the running of ff s apply independently of the gluino lifetime and are insensitive to renormalization scale.
		They disfavor a light gluino at 70% CL (CSIKOR 97), which improves to more than 99% with jet...
	citeseer.ist.psu.edu /649099.html (186 words)

	Groupe de Physique Théorique - Présentation Générale
		Auprès des collisioneurs électron-positron, le gluino n'est ainsi produit par paires qu'au niveau des boucles de quarks et de squarks, qui s'annulent largement.
		Par conséquent, des gluinos lourds seront difficiles à observer auprès des collisioneurs linéaires.
		Leur distribution angulaire permettra de décider si le gluino est vraiment un fermion de Majorana.
	lpsc.in2p3.fr /klasen/description.html (1088 words)

	CALCULATING GLUINO CONDENSATES IN N=1 SYM FROM SEIBERG-WITTEN CURVES. attivita' di ricerca (Site not responding. Last check: 2007-10-31)
		CALCULATING GLUINO CONDENSATES IN N=1 SYM FROM SEIBERG-WITTEN CURVES.
		Gluino Condensates; Dynamics of N=1 Supersymmetric Gauge Theories.
		The value of the gluino condensate agrees in all cases with what was found in the weak coupling istanton calculation.
	virmap.unipi.it /cgi-bin/virmap/vmibo?doc_pubbl:15687398;main;art (91 words)

	Minutes - New Phenomena Mtg Friday 11/18 (Site not responding. Last check: 2007-10-31)
		The relevant numbers from the plot are: for all m(squark): m(gluino) > 144 GeV/c^2 at 95% CL for m(squark) = m(gluino) = m: m > 212 GeV/c^2 at 95% CL The drawing of the contour will be coming soon, in version 2 of the Squark and Gluino PRL draft.
		Complete map out of the limit contour at the high gluino mass and low squark mass region (nose region).
		Addition of a signal and the background on the MEt spectrum plot.
	www-d0.fnal.gov /cgi-bin/d0news?read__SUSY__214 (1203 words)

	Physics News Update
		Looking for events in which three jets of energetic particles stream out of the reaction zone, physicists at the CDF detector have performed the most authoritative search yet for SUSY particles.
		Finding no positive evidence, the Fermilab scientists have established a new lower limit (195 GeV) on the mass of one prominent SUSY particle, the gluino.
		The data base for this painstaking analysis was actually gathered several years ago; with the new, more intense Tevatron beam, five times as much data is expected within a year, and this will aid the search for these very rare events.
	www.aip.org /pnu/2002/split/574-1.html (368 words)

	Physics News 392, September 22, 1998
		One explanation is that energetic neutrinos make the long cosmic journey and then annihilate relatively near the Earth with massive dark-matter neutrinos to create the cosmic ray primary particle.
		Farrar herself is partial to the notion that the primary is the neutral S particle, an amalgam of three quarks and a gluino (one of the shadow particles associated with supersymmetry theory; see Updates 86 and 265).
		With a mass two or three times that of the proton, the S would not as readily produce pions in interactions with microwave photons, thus ensuring for itself a more robust passage through the cosmos.
	newton.ex.ac.uk /aip/physnews.392.html (229 words)

	NYU Physicist Proposes New Theory For Origin And Make-Up Of Extremely High-Energy Cosmic Rays
		Instead, she argues that such cosmic rays are made principally of a new subatomic particle.
		According to Farrar, this could be the SO, a neutral particle made up of three quarks (up, down and strange) bound together with a gluino.
		The SO has at least two characteristics that would help it endure the trip across space.
	www.eurekalert.org /pub_releases/1998-10/NYU-NPPN-211098.php (584 words)

	Re: IR regularization in pure N=1, D=4 SYM
		Somewhere along the line, surely this argument must surely fail for the vector supermultiplet.
		I see it is only supposed to apply to chiral fields, although the gluino field-strength W^{alpha} counts as a chiral superfield.
		So under delta lambda = ia lambda delta W_eff ~ 2N ia W_eff where lambda is the gluino field and "a" is a small real parameter, and W_eff is the effective potential.
	www.lns.cornell.edu /spr/2003-07/msg0052458.html (737 words)

	Gluino Production in Electron-Positron Annihilation (ResearchIndex)
		Abstract: We discuss the pair production of gluinos in electron-positron annihilation at LEP, in a model with soft supersymmetry breaking, allowing for mixing between the squarks.
		A non-observation of gluinos at this level restricts the allowed MSSM parameter space.
		In particular, it leads to lower bounds on the soft mass parameters...
	citeseer.ist.psu.edu /416229.html (395 words)

	Squark and Gluino Search Thesis
		A Search for Squarks and Gluinos using the Jets and Missing Energy Signature at DØ
		This thesis reports on a search for evidence of production and decay of squarks and gluinos of Minimal Supergravity (mSUGRA) in proton-antiproton collisions at a center of mass energy of 1.8 TeV using the DØ detector at the Fermi National Accelerator Laboratory.
		If squarks and gluinos have the same mass, that common mass must be greater than 260 GeV/c
	www.lns.cornell.edu /~lyon/thesis (535 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		Send me mail and I will add whatever else needs to be here.
		* farrar_prd51.ps hep-ph/9407401, PRD51,3904 (1995) This PRD explores the light gluino mass window and past exclusions.
		Also discusses why light gluino limit with alpha_s running is wrong.
	www.physics.rutgers.edu /~lath/r0/papers/aaaa_readme.txt (279 words)

	Citebase - Very light sbottom and gluino scenario confronting electroweak precision tests
		Very light sbottom and gluino scenario confronting electroweak precision tests
		) and light gluino (12 ∼ 16 GeV) can explain the excess of bottom quark production cross section at hadron colliders and has drawn much attention.
		in this scenario when large CP violating phases are allowed in the gluino mass and/or sbottom sector.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-ph/0205013 (176 words)

	Light Gluino And Jet Experiments At The Tevatron (Site not responding. Last check: 2007-10-31)
		We discuss implications of the light gluino in jet experiments at the Tevatron.
		Second, inclusive E_T distributions are enhanced due to slower running of \alpha_s, gluino pair production and squark production.
		Lastly, single squark production may result in an inclusive jet angular distribution different from that in standard QCD.
	flux.aps.org /meetings/BAPSES96/abs/S0190007.html (87 words)

	February 8, 2002, Hour One: Particle Physics News / Sport Psychology
		We'll also find out about recent research in the world of particle physics, and the search for the gluino.
		Scientists at Fermilab haven't found the gluino yet.
		We'll talk about why that's important with one of the scientists leading the hunt.
	www.sciencefriday.com /pages/2002/Feb/hour1_020802.html (304 words)

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