High spatial resolution detectors and particle lifetime measurements at LEP

Coyle, P.; Schneider, O.

doi:10.1016/s1631-0705(02)01404-4

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…The use of silicon detectors, which can have single point resolution of order 10 µm, would definitely improve with respect to the KLOE-2 case. Noticeably, all the LEP experiments, which had beam pipes of 5.5 cm, could reach typical decay length resolution of ∼250µm for B decay events, thanks to the use of silicon detectors [43]. This implies that, considering the cm scale decay length we have been interested so far, vertexing resolution should not be a major issue.…”

Section: Implementation At Current and Future Facilitiesmentioning

confidence: 99%

Dark Photon Searches Using Displaced Vertices at Low Energye+e-Colliders

Bossi

2014

Advances in High Energy Physics

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The existence of a new, photon-like, massive particle, the γ ′ or dark photon, is postulated in several extensions of the Standard Model. These models are often advocated to explain some recent puzzling astrophysical observations, as well as to solve the unsofar unexplained deviation between the measured and calculated values of the muon anomaly. Dark photons can be produced at e + e − colliders both in continuum events and in vector meson transitions and can eventually decay into an electron-positron pair. For a proper choice of the parameters of the theory, a γ ′ can have a relatively long lifetime and can therefore be observed as an e + e − vertex well separated by the primary interaction point. This case is discussed in reference to very high luminosity e + e − colliders either in construction or under study in several laboratories in the world. It is shown that a search strategy based on the detection of displaced vertices can be in principle very effective in covering a rather wide and to date unexplored region of the theoretical parameters space

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Section: Implementation At Current and Future Facilitiesmentioning

confidence: 99%

Dark Photon Searches Using Displaced Vertices at Low Energye+e-Colliders

Bossi

2014

Advances in High Energy Physics

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“…1 ρ = ρ(1 − λ 2 /2); η = η(1 − λ 2 /2). 2 In this average the results from CLEO and Belle Collaborations are included. LEP still has a predominant weight.…”

Section: Ckm Fitsmentioning

confidence: 99%

“…Precise measurements of the production and decay properties of B hadrons have been performed [1]. For an overview of the B hadron lifetime measurements, the reader is referred to the dedicated article in this volume [2]. In this paper we will further focus on the measurements of the CKM matrix elements.…”

Section: Introductionmentioning

confidence: 99%

Heavy quarks and the CKM matrix

Kluit

Stocchi

2002

Comptes Rendus. Physique

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In the last decade, the LEP experiments played a central role in the study of B hadrons (hadrons containing a b quark). New B hadrons have been observed (B 0 s , B , b and B * * ) and their production and decay properties have been measured. In this paper we will focus on measurements of the CKM matrix elements:We will show how all these measurements, together with theoretical developments, have significantly improved our knowledge on the flavour sector of the Standard Model.

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References

2010

Elementary Particle Physics

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High spatial resolution detectors and particle lifetime measurements at LEP

Abstract: The design and performance of the LEP silicon vertex detectors are described. Their application to the measurement of the τ -lepton and b-hadron lifetimes is discussed and the current status of these measurements is reviewed.

Cited by 5 publications

References 17 publications

Dark Photon Searches Using Displaced Vertices at Low Energye+e-Colliders

Dark Photon Searches Using Displaced Vertices at Low Energye+e-Colliders

Heavy quarks and the CKM matrix

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