Author: Sterling Gray Watson
Publisher:
ISBN:
Category : Leptons (Nuclear physics)
Languages : en
Pages : 286
Book Description
Precision Measurements of Tau Lepton Decays Using Inclusive Spectra
Author: Sterling Gray Watson
Publisher:
ISBN:
Category : Leptons (Nuclear physics)
Languages : en
Pages : 286
Book Description
Publisher:
ISBN:
Category : Leptons (Nuclear physics)
Languages : en
Pages : 286
Book Description
Precision Measurements of Tau Lepton Decays
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 293
Book Description
Using data collected with the BABAR detector at the SLAC PEP-II electron-positron storage ring operating at a centre-of-mass energy near 10.58 GeV, the branching fractions B([tau]- 2![pi]-[pi]-[pi]+[nu][tau]) =(8.83±0.01±0.13)%, B([tau]- 2!K-[pi]-[pi]+[nu][tau]) =(0.273± 0.002 ± 0.009)%, B([tau]- 2!K-[pi]-K+[nu][tau]) =(0.1346 ± 0.0010 ± 0.0036)%, and B([tau]- 2!K-K-K+[nu][tau]) =(1.58 ± 0.13 ± 0.12) × 10-5 are measured where the uncertainties are statistical and systematic, respectively. The invariant mass distribution for the [tau]- 2![pi]-[pi]-[pi]+[nu][tau], [tau]- 2!K-[pi]-[pi]+[nu][tau], [tau]- 2!K-[pi]-K+[nu][tau] and [tau]- 2!K-K-K+[nu][tau] decays are unfolded to correct for detector effects. A measurement of B([tau]- 2![phi][pi]-[nu][tau]) =(3.42±0.55±0.25)×10-5, a measurement of B([tau]- 2![phi]K-[nu][tau]) =(3.39±0.20±0.28)× 10-5 and an upper limit on B([tau]- 2!K-K-K+[nu][tau] [ex.[phi]]) d"2.5 × 10-6@90%CL are determined from a binned maximum likelihood fit of the [tau]- 2!K-[pi]-K+[nu][tau] and [tau]- 2!K-K-K+[nu][tau] K+K- invariant mass distributions. The branching ratio B([tau]-2!-[nu][tau])/ B([tau]-2!pi]-[nu][tau]) is measured to be (6.531±0.056±0.093)×10-2 from which.
Publisher:
ISBN:
Category :
Languages : en
Pages : 293
Book Description
Using data collected with the BABAR detector at the SLAC PEP-II electron-positron storage ring operating at a centre-of-mass energy near 10.58 GeV, the branching fractions B([tau]- 2![pi]-[pi]-[pi]+[nu][tau]) =(8.83±0.01±0.13)%, B([tau]- 2!K-[pi]-[pi]+[nu][tau]) =(0.273± 0.002 ± 0.009)%, B([tau]- 2!K-[pi]-K+[nu][tau]) =(0.1346 ± 0.0010 ± 0.0036)%, and B([tau]- 2!K-K-K+[nu][tau]) =(1.58 ± 0.13 ± 0.12) × 10-5 are measured where the uncertainties are statistical and systematic, respectively. The invariant mass distribution for the [tau]- 2![pi]-[pi]-[pi]+[nu][tau], [tau]- 2!K-[pi]-[pi]+[nu][tau], [tau]- 2!K-[pi]-K+[nu][tau] and [tau]- 2!K-K-K+[nu][tau] decays are unfolded to correct for detector effects. A measurement of B([tau]- 2![phi][pi]-[nu][tau]) =(3.42±0.55±0.25)×10-5, a measurement of B([tau]- 2![phi]K-[nu][tau]) =(3.39±0.20±0.28)× 10-5 and an upper limit on B([tau]- 2!K-K-K+[nu][tau] [ex.[phi]]) d"2.5 × 10-6@90%CL are determined from a binned maximum likelihood fit of the [tau]- 2!K-[pi]-K+[nu][tau] and [tau]- 2!K-K-K+[nu][tau] K+K- invariant mass distributions. The branching ratio B([tau]-2!-[nu][tau])/ B([tau]-2!pi]-[nu][tau]) is measured to be (6.531±0.056±0.093)×10-2 from which.
Review of Tau Lepton Decays
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
Book Description
Measurements of the [tau] decay modes are reviewed and compared with the predictions of the Standard Model. While the agreement is generally good, the status of the 1-prong puzzle'' remains controversial and a discrepancy between the measured leptonic branching fractions and the [tau] lifetime persists. Prospects for precision measurements at a Tau-Charm Factory are also reviewed. 20 refs., 2 tabs.
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
Book Description
Measurements of the [tau] decay modes are reviewed and compared with the predictions of the Standard Model. While the agreement is generally good, the status of the 1-prong puzzle'' remains controversial and a discrepancy between the measured leptonic branching fractions and the [tau] lifetime persists. Prospects for precision measurements at a Tau-Charm Factory are also reviewed. 20 refs., 2 tabs.
Precision Measurements in Muon and Tau Decays
Precision Measurement of the Tau Lepton Mass and the Mass Difference of the Positively and Negatively Charged Tau Leptons at BaBar
Tau Lepton Physics
Author: Michel Davier
Publisher: Atlantica Séguier Frontières
ISBN: 9782863320976
Category : Leptons (Nuclear physics)
Languages : en
Pages : 590
Book Description
Publisher: Atlantica Séguier Frontières
ISBN: 9782863320976
Category : Leptons (Nuclear physics)
Languages : en
Pages : 590
Book Description
Review of Recent Results on the [tau] Lepton
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This is a review of the recent results on the [tau] lepton. The results include precise measurements of the lifetime, measurements of the decay [tau]/sup /minus// .-->. .pi./sup /minus//2.pi.°.nu./sub [tau]/ with much improved precision, limits on decay modes containing [eta] mesons, including the second-class-current decay /tau//sup /minus// .-->. .pi./sup /minus//[eta].nu./sub /tau//, and limits on exotic decay modes. The implications of these results on the discrepancy in the one-charged-particle decay modes are discussed. 43 refs., 4 figs., 2 tabs.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This is a review of the recent results on the [tau] lepton. The results include precise measurements of the lifetime, measurements of the decay [tau]/sup /minus// .-->. .pi./sup /minus//2.pi.°.nu./sub [tau]/ with much improved precision, limits on decay modes containing [eta] mesons, including the second-class-current decay /tau//sup /minus// .-->. .pi./sup /minus//[eta].nu./sub /tau//, and limits on exotic decay modes. The implications of these results on the discrepancy in the one-charged-particle decay modes are discussed. 43 refs., 4 figs., 2 tabs.
New Results on the Tau Lepton
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This is a review of new results on the tau lepton. The results include precise measurements of the lifetime, measurements of the decay tau− .-->. .pi.−2.pi.°nu/sub tau/ with much improved precision, and limits on decay modes containing eta mesons, including the second-class-current decay tau− .-->. .pi.−eta nu/sub tau/. The implications of these new results on the discrepancy in the one-charged-particle decay modes are discussed. 52 refs., 6 figs., 2 tabs.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This is a review of new results on the tau lepton. The results include precise measurements of the lifetime, measurements of the decay tau− .-->. .pi.−2.pi.°nu/sub tau/ with much improved precision, and limits on decay modes containing eta mesons, including the second-class-current decay tau− .-->. .pi.−eta nu/sub tau/. The implications of these new results on the discrepancy in the one-charged-particle decay modes are discussed. 52 refs., 6 figs., 2 tabs.
Tau Lepton Physics - Proceedings Of The Second Workshop
Author: K K Gan
Publisher: World Scientific
ISBN: 9814553433
Category :
Languages : en
Pages : 590
Book Description
The II International Workshop on Tau Lepton Physics was held in Ohio, USA in September 1992. Its purpose is to gather the experts on tau lepton physics to examine the current understanding of the tau lepton physics and to assess future prospects. A particular emphasis of the Workshop was a detailed examination of the '1-prong problem': the discrepancy between the inclusive measurement of one-charged-particle decay branching ratio and the sum of the exclusive decays. The Workshop also stimulated new ideas on tests of the Standard Model using the third generation lepton and assessed the future prospects of the lepton physics.
Publisher: World Scientific
ISBN: 9814553433
Category :
Languages : en
Pages : 590
Book Description
The II International Workshop on Tau Lepton Physics was held in Ohio, USA in September 1992. Its purpose is to gather the experts on tau lepton physics to examine the current understanding of the tau lepton physics and to assess future prospects. A particular emphasis of the Workshop was a detailed examination of the '1-prong problem': the discrepancy between the inclusive measurement of one-charged-particle decay branching ratio and the sum of the exclusive decays. The Workshop also stimulated new ideas on tests of the Standard Model using the third generation lepton and assessed the future prospects of the lepton physics.