Single neutralino production at CERN LHC

Gounaris, G. J.; Layssac, J.; Porfyriadis, P. I.; Renard, F.M.

doi:10.1103/physrevd.71.075012

Cited by 7 publications

(13 citation statements)

References 37 publications

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“…The reverse process γγ →χ 0 iχ 0 j , which is suitable for a LC γγ collider study, has appeared in [8]; while the LHC production processes, containing two or one neutralino, have appeared in [9] and [10] respectively.…”

Section: Discussionmentioning

confidence: 99%

“…In some, admittedly extreme corners of the parameter space, where the two lightest neutralinos may be exactly degenerate, the (i = j)-case may also be useful. The same analytic amplitudes were then also used to study the reverse process γγ → χ 0 iχ 0 j in a γγ Linear Collider (LC γγ ) [8]; while the related amplitudes for gg →χ 0 iχ 0 j and gg →χ 0 ig , were used to determine the corresponding production of a pair of neutralinos [9], or a single neutralino [10], at the CERN LHC.…”

Section: Introductionmentioning

confidence: 99%

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Neutralino-neutralino annihilation toγZin MSSM

et al. 2006

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The 1-loop computation of the processesχ 0 iχ 0 j → γZ has been performed at an arbitrary c.m. energy for any pair of MSSM neutralinos. As an application suitable for Dark Matter (DM) searches, the neutralino-neutralino annihilation is studied at the limiting case of vanishing relative velocity, describing the present DM distribution in the galactic halo; and at a relative velocity of about 0.5, determining the neutralino relic density contributions. The most useful situation is obviously for i = j = 1, but the case of non-identical neutralinos may also be useful in some corners of the parameter space. Our results are contained in the FORTRAN code PLATONdmgZ, applying to any set of real MSSM parameters. Numerical results are also presented for a sample of 6 MSSM models, describing the various possible neutralino properties. A comparison with other existing works is also made.PACS numbers: 12.15.-y, 14.80.Ly, 95.35+d †

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Neutralino-neutralino annihilation toγZin MSSM

et al. 2006

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“…(A.28) and (A.33), and multiplying the overall result by 2 to take into account the two possible signs of cos θ in eq. (A.31), dσ dp 2 37) where t 1 is expressed in terms of E 1 and p 2 T via eq. (A.32).…”

Section: Jhep01(2011)138mentioning

confidence: 99%

Supersymmetric monojets at the Large Hadron Collider

Allanach

Grab

Haber

2011

J. High Energ. Phys.

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Supersymmetric monojets may be produced at the Large Hadron Collider by the process qg → q χ 0 1 → q χ 0 1 χ 0 1 , leading to a jet recoiling against missing transverse momentum. We discuss the feasibility and utility of the supersymmetric monojet signal. In particular, we examine the possible precision with which one can ascertain the χ 0 1 qq coupling via the rate for monojet events. Such a coupling contains information on the composition of the χ 0 1 and helps bound dark matter direct detection cross-sections and the dark matter relic density of the χ 0 1 . It also provides a check of the supersymmetric relation between gauge couplings and gaugino-quark-squark couplings.

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“…[18,19] search for associated production of charginos and neutralinos, and Ref. [20] focuses on single neutralino production.…”

Section: Introductionmentioning

confidence: 99%

Single neutralino production at the LHC

Ahmadov

Demirci

2013

Phys. Rev. D

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We consider that the direct production of a single neutralino in proton-proton collision at the CERN Large Hadron Collider focusing on the lightest neutralino is possibly a candidate for the dark matter and escapes detection. We present a comprehensive investigation of the dependence of total cross sections of the processes pp(qq)on the center-of-mass energy, on the M 2 -µ mass plane, on the squark mass and on the tan β for the Constrained Minimal Supersymmetric Standard Model and the three extremely different scenarios in the Minimal Supersymmetric Standard Model. In particular, the cross section of the process pp → χ 0 2 χ + 1 in the gaugino-like scenario can reach about 0.6 (1.7) pb at a center-of-mass energy of √ s = 7 (14) TeV. We derive therefrom that our results might lead to new aspects corresponding to experimental explorations, and these dependencies might be used as bases of experimental research of the single neutralino production at hadron colliders.

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Single neutralino production at CERN LHC

Cited by 7 publications

References 37 publications

Neutralino-neutralino annihilation toγZin MSSM

Neutralino-neutralino annihilation toγZin MSSM

Supersymmetric monojets at the Large Hadron Collider

Single neutralino production at the LHC

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