Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider

Saito, M.; Sawada, R.; Terashi, K.; Asai, S.

doi:10.1140/epjc/s10052-019-6974-2

Cited by 34 publications

(44 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Gaining sensitivity to these disappearing tracks is a crucial criterion in the design of future trackers for the FCC-hh experiments [11]. Without entering into the details of the analyses [122], we report here the results in Fig. 33, which confirm that the reach for discovery, or exclusion, of WIMPs at the upper mass end is achieved.…”

Section: Dark Matter Searchessupporting

confidence: 51%

See 1 more Smart Citation

TASI lectures on Future Colliders

Mangano¹

2019

Proceedings of Theoretical Advanced Study Institute Summer School 2018 "Theory in an Era of Data" — PoS(TASI2018)

View full text Add to dashboard Cite

These lectures review the main motivations for future high-energy colliders, focusing on the understanding of electroweak symmetry breaking and on the search for physics beyond the Standard Model. The open questions and the challenges are common to all future projects; for concreteness, I will use studies of the potential of e + e − and pp circular colliders to provide examples of the anticipated physics reach.

show abstract

Section: Dark Matter Searchessupporting

confidence: 51%

“…The black (red) band shows the significance using two alternative tracker layouts, described in Ref. [122]. The band width represents the difference between two models of the soft QCD processes.…”

Section: Dark Matter Searchesmentioning

confidence: 99%

TASI lectures on Future Colliders

Mangano¹

2019

Proceedings of Theoretical Advanced Study Institute Summer School 2018 "Theory in an Era of Data" — PoS(TASI2018)

View full text Add to dashboard Cite

show abstract

“…Another source of fake Wino-like track is due to an accidental alignment of hits of particles mainly from pile-ups and it is the dominant source according to ref. [33]. In addition, in the signal events (i.e.…”

Section: Background Estimationmentioning

confidence: 99%

“…According to ref. [33], the probability to have one fake disappearing track in the pseudorapidity range of |η| < 1.5 is about 2×10 −5 per bunch crossing, requiring hits in five pixel layers for a particular setup of the FCC experiment. The background rate can be reduced therefore by ten orders of magnitude by requiring both Requirement 1 and Requirement 2.…”

Section: Background Estimationmentioning

confidence: 99%

Studying gaugino masses in supersymmetric model at future 100 TeV pp collider

Asai

Chigusa

Kaji³

et al. 2019

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

We discuss prospects of studying supersymmetric model at future pp circular collider (FCC) with its centre-of-mass energy of ∼ 100 TeV. We pay particular attention to the model in which Wino is lighter than other supersymmetric particles and all the gauginos are within the kinematical reach of the FCC, which is the case in a large class of so-called pure gravity mediation model based on anomaly mediated supersymmetry breaking. In such a class of model, charged Wino becomes long-lived with its decay length of ∼ 6 cm, and the charged Wino tracks may be identified in particular by the inner pixel detector; the charged Wino tracks can be used not only for the discrimination of standard model backgrounds but also for the event reconstructions. We show that precise determinations of the Bino, Wino, and gluino masses are possible at the FCC. For such measurements, information about the charged Wino tracks, including the one about the velocity of the charged Wino using the time of the hit at the pixel detector, is crucial. With the measurements of the gaugino masses in the pure gravity mediation model, we have an access to more fundamental parameters like the gravitino mass.

show abstract

“…The mass difference is dominated by a loop contribution, Δm χ ¼ m χ AE − m χ 0 ≃ 160-170 MeV [13][14][15][16]. The charged wino is thus long lived and leaves significant signals such as a disappearing track in projected high-energy colliders [17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Smallest halos in thermal wino dark matter

et al. 2019

View full text Add to dashboard Cite

(Mini) split supersymmetry explains the observed Higgs mass and evades stringent constraints, while keeping good features of TeV-scale supersymmetry other than the little hierarchy problem. Such scenarios naturally predict thermal wino dark matter whose mass is around 3 TeV. Its nonperturbatively enhanced annihilation is a promising target of indirect detection experiments. It is known that identifying the smallest halos is essential for reducing an uncertainty in interpreting indirect detection experiments. Despite its importance, the smallest halos of thermal wino dark matter have not been well understood and thus are investigated in this work. In particular, we remark on two aspects: (1) the neutral wino is in kinetic equilibrium with primordial plasma predominantly through inelastic processes involving the slightly heavier charged wino; and (2) the resultant density contrast shows larger powers at dark acoustic oscillation peaks than in cold dark matter, which is known as an overshooting phenomenon. By taking them into account, we provide a rigorous estimate of the boost factor. Our result facilitates accurately pinning down thermal wino dark matter through vigorous efforts in indirect detection experiments.

show abstract

Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider

Cited by 34 publications

References 69 publications

TASI lectures on Future Colliders

TASI lectures on Future Colliders

Studying gaugino masses in supersymmetric model at future 100 TeV pp collider

Smallest halos in thermal wino dark matter

Contact Info

Product

Resources

About