The Standard Model of particle physics: an introduction to the theory

Boudjema, Fawzi; Zeppenfeld, D.

doi:10.1016/s1631-0705(02)01392-0

Cited by 4 publications

(3 citation statements)

References 28 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…I wish to thank Fawzi Boudjema and Patrick Janot for allowing me to make an extensive use of their excellent reviews [15,16] in the special issue of the Comptes Rendus "Advances in Particle Physics: the LEP Contribution" I had the pleasure to coordinate in 2002.…”

Section: Acknowledgementsmentioning

confidence: 99%

The Higgs boson of the Standard Model

Davier

2007

Comptes Rendus. Physique

View full text Add to dashboard Cite

Section: Acknowledgementsmentioning

confidence: 99%

The Higgs boson of the Standard Model

Davier

2007

Comptes Rendus. Physique

View full text Add to dashboard Cite

“…1(b) and 1(c)) determine the final state topologies and therefore the search strategy. Because the Higgs boson is expected to couple to particles proportionally to their mass [12], it tends to preferentially decay into the pair of heaviest particles kinematically accessible. In Fig.…”

Section: The Lep 1 Eramentioning

confidence: 99%

“…In the twelve years that followed, because of its large and unambiguously known coupling to the Z [12], direct searches for the standard model Higgs boson between 0 and 115 GeV•c −2 became the monopoly of LEP. Their results drastically modified the experimental knowledge in the field.…”

Section: Introductionmentioning

confidence: 99%

Direct search for the Standard Model Higgs boson

Janot

Kado

2002

Comptes Rendus. Physique

View full text Add to dashboard Cite

For twelve years, LEP revolutionized the knowledge of electroweak symmetry breaking within the standard model, and the direct discovery of the Higgs boson would have been the crowning achievement. Searches at the Z resonance and above the W + W − threshold allowed an unambiguous lower limit on the mass of the standard model Higgs boson to set be at 114.1 GeV•c −2 . After years of efforts to push the LEP performance far beyond the design limits, hints of what could be the first signs of the existence of a 115 GeV•c −2 Higgs boson appeared in June 2000, were confirmed in September, and were then confirmed again in November. An additional six-month period of LEP operation was enough to provide a definite answer, with an opportunity to make a fundamental discovery of prime importance.

show abstract

The number of neutrinos and the Z line shape

Blondel

2002

Comptes Rendus. Physique

View full text Add to dashboard Cite

The Standard Theory can fit any number of fermion families, as long as the number of leptons and quark families are the same. At the time of the conception of LEP, the number of such families was unknown, and it was feared that the Z resonance would be washed out by decaying into so many families of neutrinos! It took only a few weeks in the fall of 1989 to determine that the number is three. The next six years (from 1990 to 1995) were largely devoted to the accurate determination of the Z line shape, with a precision that outperformed the most optimistic expectations by a factor of 10. The tale of these measurements is a bona fide mystery novel, the precession of electrons being strangely perturbed by natural phenomena, such as tides, rain, hydroelectric power, fast trains, not to mention vertical electrostatic separators. The number hidden in the loops of this treasure hunt was 179, the first estimate of the mass of the top quark; then, once that was found, where predicted, the next number was close to zero: the logarithm of Higgs mass divided by that of the Z. Twenty years later, the quality of these measurements remains, but what they tell us is different: it is no longer about unknown parameters of the Standard Theory, it is about what lies beyond it. This is so acutely relevant, that CERN has launched the design study of a powerful Z, W, H and top factory.

show abstract

The Standard Model of particle physics: an introduction to the theory

Abstract: The key concepts of gauge invariance and spontaneous symmetry breaking that helped build the Standard Model of particle physics are introduced. A short description of radiative corrections that have made the model pass all precision tests, in particular those from LEP, is presented.

Cited by 4 publications

References 28 publications

The Higgs boson of the Standard Model

The Higgs boson of the Standard Model

Direct search for the Standard Model Higgs boson

The number of neutrinos and the Z line shape

Contact Info

Product

Resources

About