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Rare exclusive hadronic W decays in a [Formula: see text] environment.

Mangano M, Melia T - Eur Phys J C Part Fields (2015)

Bottom Line: The large cross section for [Formula: see text] production at the large hadron collider (LHC) and at any future hadron collider provides a high-statistics and relatively clean environment for a study of W boson properties: after tagging on a leptonic decay of one of the Ws and the two b jets, an additional W still remains in the event.By using strong isolation criteria, which we impose by searching for jets with a single particle constituent, we show that the three-particle hadronic W decays have potential to be measured at the LHC.The possibility of measuring an involved spectrum of decay products could considerably expand our knowledge of how the W decays, and experimental techniques acquired in making these measurements would be useful for application to future measurements of exclusive hadronic Higgs boson decays.

View Article: PubMed Central - PubMed

Affiliation: TH Group, PH Department, CERN, 1211 Geneva 23, Switzerland.

ABSTRACT

The large cross section for [Formula: see text] production at the large hadron collider (LHC) and at any future hadron collider provides a high-statistics and relatively clean environment for a study of W boson properties: after tagging on a leptonic decay of one of the Ws and the two b jets, an additional W still remains in the event. We study the prospect of making the first exclusive hadronic decay of a fundamental boson of the standard model, using the decay modes [Formula: see text] and [Formula: see text], and other related decays. By using strong isolation criteria, which we impose by searching for jets with a single particle constituent, we show that the three-particle hadronic W decays have potential to be measured at the LHC. The possibility of measuring an involved spectrum of decay products could considerably expand our knowledge of how the W decays, and experimental techniques acquired in making these measurements would be useful for application to future measurements of exclusive hadronic Higgs boson decays.

No MeSH data available.


Related in: MedlinePlus

Contributions to the decay
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Fig3: Contributions to the decay

Mentions: The two-particle decay mode was not found by PYTHIA in the above exercise of showering and hadronizing . This region is very extreme as it requires the u and quark to be recoiling against a photon, with a very small invariant mass. What is more, a contribution to the decay where the photon couples directly to the W boson, shown in Fig. 3a, is not taken into account. The rate can be estimated as follows. Contribution (a) can be related directly to the pion decay constant, MeV, via an evaluation of the current,Fig. 3


Rare exclusive hadronic W decays in a [Formula: see text] environment.

Mangano M, Melia T - Eur Phys J C Part Fields (2015)

Contributions to the decay
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4464735&req=5

Fig3: Contributions to the decay
Mentions: The two-particle decay mode was not found by PYTHIA in the above exercise of showering and hadronizing . This region is very extreme as it requires the u and quark to be recoiling against a photon, with a very small invariant mass. What is more, a contribution to the decay where the photon couples directly to the W boson, shown in Fig. 3a, is not taken into account. The rate can be estimated as follows. Contribution (a) can be related directly to the pion decay constant, MeV, via an evaluation of the current,Fig. 3

Bottom Line: The large cross section for [Formula: see text] production at the large hadron collider (LHC) and at any future hadron collider provides a high-statistics and relatively clean environment for a study of W boson properties: after tagging on a leptonic decay of one of the Ws and the two b jets, an additional W still remains in the event.By using strong isolation criteria, which we impose by searching for jets with a single particle constituent, we show that the three-particle hadronic W decays have potential to be measured at the LHC.The possibility of measuring an involved spectrum of decay products could considerably expand our knowledge of how the W decays, and experimental techniques acquired in making these measurements would be useful for application to future measurements of exclusive hadronic Higgs boson decays.

View Article: PubMed Central - PubMed

Affiliation: TH Group, PH Department, CERN, 1211 Geneva 23, Switzerland.

ABSTRACT

The large cross section for [Formula: see text] production at the large hadron collider (LHC) and at any future hadron collider provides a high-statistics and relatively clean environment for a study of W boson properties: after tagging on a leptonic decay of one of the Ws and the two b jets, an additional W still remains in the event. We study the prospect of making the first exclusive hadronic decay of a fundamental boson of the standard model, using the decay modes [Formula: see text] and [Formula: see text], and other related decays. By using strong isolation criteria, which we impose by searching for jets with a single particle constituent, we show that the three-particle hadronic W decays have potential to be measured at the LHC. The possibility of measuring an involved spectrum of decay products could considerably expand our knowledge of how the W decays, and experimental techniques acquired in making these measurements would be useful for application to future measurements of exclusive hadronic Higgs boson decays.

No MeSH data available.


Related in: MedlinePlus