Measurement of the spectral functions of vector current hadronic tau decays

Physics

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Standard

Measurement of the spectral functions of vector current hadronic tau decays. / ALEPH Collaboration.
In: Zeitschrift für Physik C Particles and Fields, Vol. 76, No. 1, 1997, p. 15-33.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

ALEPH Collaboration 1997, 'Measurement of the spectral functions of vector current hadronic tau decays', Zeitschrift für Physik C Particles and Fields, vol. 76, no. 1, pp. 15-33.

APA

ALEPH Collaboration (1997). Measurement of the spectral functions of vector current hadronic tau decays. Zeitschrift für Physik C Particles and Fields, 76(1), 15-33.

Vancouver

ALEPH Collaboration. Measurement of the spectral functions of vector current hadronic tau decays. Zeitschrift für Physik C Particles and Fields. 1997;76(1):15-33.

Author

ALEPH Collaboration. / Measurement of the spectral functions of vector current hadronic tau decays. In: Zeitschrift für Physik C Particles and Fields. 1997 ; Vol. 76, No. 1. pp. 15-33.

Bibtex

@article{46ebc386f0464cae817085bbeeeed918,

title = "Measurement of the spectral functions of vector current hadronic tau decays",

abstract = "A measurement of the spectral functions of non-strange tau vector current final states is presented, using 124 358 tau pairs recorded by the ALEPH detector at LEP during the years 1991 to 1994. The spectral functions of the dominant two-and four-pion tau decay channels are compared to published results of ece-annihilation experiments via isospin rotation. A combined fit of the pion form factor from tau decays and e(+)e(-)data is performed using different parameaizations. The mass and the width of the rho(+/-)(770) and the p(0)(770) are separately determined in order to extract possible isospin violating effects. The mass and width differences are measured to be M<rho+/-(770) - M-rho 0(770), = (0.0 +/- 1.0) MeV/c(2) and Gamma(rho+/-(770)) - Gamma(rho 0(770)) = (0.1 +/- 1.9) MeV/c(2).",

author = "R. Barate and Alexander Finch and {ALEPH Collaboration}",

year = "1997",

language = "English",

volume = "76",

pages = "15--33",

journal = "Zeitschrift f{\"u}r Physik C Particles and Fields",

issn = "0170-9739",

publisher = "Springer Verlag",

number = "1",

}

RIS

TY - JOUR

T1 - Measurement of the spectral functions of vector current hadronic tau decays

AU - Barate, R.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1997

Y1 - 1997

N2 - A measurement of the spectral functions of non-strange tau vector current final states is presented, using 124 358 tau pairs recorded by the ALEPH detector at LEP during the years 1991 to 1994. The spectral functions of the dominant two-and four-pion tau decay channels are compared to published results of ece-annihilation experiments via isospin rotation. A combined fit of the pion form factor from tau decays and e(+)e(-)data is performed using different parameaizations. The mass and the width of the rho(+/-)(770) and the p(0)(770) are separately determined in order to extract possible isospin violating effects. The mass and width differences are measured to be M<rho+/-(770) - M-rho 0(770), = (0.0 +/- 1.0) MeV/c(2) and Gamma(rho+/-(770)) - Gamma(rho 0(770)) = (0.1 +/- 1.9) MeV/c(2).

AB - A measurement of the spectral functions of non-strange tau vector current final states is presented, using 124 358 tau pairs recorded by the ALEPH detector at LEP during the years 1991 to 1994. The spectral functions of the dominant two-and four-pion tau decay channels are compared to published results of ece-annihilation experiments via isospin rotation. A combined fit of the pion form factor from tau decays and e(+)e(-)data is performed using different parameaizations. The mass and the width of the rho(+/-)(770) and the p(0)(770) are separately determined in order to extract possible isospin violating effects. The mass and width differences are measured to be M<rho+/-(770) - M-rho 0(770), = (0.0 +/- 1.0) MeV/c(2) and Gamma(rho+/-(770)) - Gamma(rho 0(770)) = (0.1 +/- 1.9) MeV/c(2).

M3 - Journal article

VL - 76

SP - 15

EP - 33

JO - Zeitschrift für Physik C Particles and Fields

JF - Zeitschrift für Physik C Particles and Fields

SN - 0170-9739

IS - 1

ER -

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