The Minimal Set of Electroweak Precision Parameters

By Giacomo Cacciapaglia, Csaba Csáki, Guido Marandella, Alessandro Strumia. 2006

222 citations recorded by the source corpus.

We present a simple method for analyzing the impact of precision electroweak data above and below the $Z$ peak on flavor-conserving, heavy new physics. We find that experiments have probed about ten combinations of new-physics effects, which to a good approximation can be condensed into the effective oblique parameters $\stackrel{^}{S}$, $\stackrel{^}{T}$, $\stackrel{^}{U}$, $V$, $X$, $W$, $Y$ (we prove positivity constraints $W,Y\ensuremath{\ge}0$) and three combinations of quark couplings (including a distinct parameter for the bottom). We apply our method to generic extra ${Z}^{\ensuremath{'}}$ vectors.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/767c12eefdbeb3d1efb55e5163f9c1f773bed914

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. A. Wulzer
2. G. Panico
3. B. Henning
4. H. Murayama
5. Xiaochuan Lu
6. Goran Senjanovic
7. F. Riva
8. A. Falkowski

In Nuclear and High Energy Physics

1. A. Wulzer
2. G. Panico
3. B. Henning
4. H. Murayama
5. Xiaochuan Lu
6. Y. Soreq
7. Aielet Efrati
8. A. Falkowski

Citations in the corpus

• Model-independent precision constraints on dimension-6 operators (2014, background): “These constraints have been discussed in the literature [5, 6, 10, 12, 15, 16, 18–20], however a general and quantitative analysis that is easily interpretable in the context of different sets of operators and is therefore easily applicable to different new physics models is still missing.”
• Pinch Technique: Theory and Applications (2009, unknown): “, [137–142].”
• Warm dark matter in low scale left-right theory (2012, background): “5 TeV ATLAS, CMS [46, 47] heavy Majorana N [48] ZLR e +e−/μ+μ− ∼ 2 TeV ATLAS [49] see [50] ZLR e +e− ∼ 3 TeV LEP [51] indirect, see [52, 53] ∆ L ` + i ` + j 100-355 GeV ATLAS [54] spectrum dependent [55] ∆+L ET + j 70-90 GeV LEP [58] chargino search [57] ∆L 45 GeV LEP [51] Z-boson width ∆ R ` + i ` ”
• Electroweak constraints on flavorful effective theories (2015, background): “In another basis, larger vertex corrections may be allowed if compensating oblique corrections are present [5, 6].”
• How to use the Standard Model effective field theory (2014, background): “While there have been a variety of studies concerning the mapping of operators onto weak-scale observables in the literature [12, 22, 24, 25, 30–43], to the best of our knowledge, a complete and systematic list does not exist yet.”
• The Composite Nambu-Goldstone Higgs (2015, methodology): “Due to the high precision, the measurement of the ZbLbL vertex is usually included among the EW precision tests together with the oblique EW parameters [118, 119].”