2675
DPyC SMF
false
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Dr.
Cinvestav
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3312
XXI Mexican School on Particles and Fields 2026
<p style="text-align:justify">The <strong>XXI Mexican School on Particles and Fields</strong> takes place from <strong>October 19th to 23rd, 2026</strong>, in the city of Puebla, Puebla, México. The format of the school is such that the morning sessions are devoted to theoretical and experimental reviews, whereas parallel thematic sessions shall be held in the afternoons. All the reviews and seminars are delivered by experts of international prestige on subjects which are of current interest to the global scientific community and are also actively pursued within México. </p>
<p style="text-align:justify">In order to equip graduate students and attending postdocs with the necessary tools to perform fully in the school, courses of interest are taught, with English being the language of instruction. An informal and friendly atmosphere is encouraged during the courses so that the students can overcome their inhibitions and actively participate in the discussions. </p>
<p style="text-align:justify"><em><u><strong>Organizing Committee</strong></u></em></p>
<p style="text-align:justify">Dr. Isabel Pedraza Morales (President DPyC-SMF) [BUAP]<br />
Dr. Humberto G. Maury Cuna (Vice-President DPyC-SMF) [UGTO]</p>
<p style="text-align:justify"><em><u><strong>Local Organizing Committee</strong></u></em></p>
<p style="text-align:justify">Dr. Haydee Hernández [BUAP]<br />
Dr. Arturo Fernández [BUAP]<br />
Dr. Humberto Salazar [BUAP]<br />
Dr. Olga Félix Beltrán [BUAP]</p>
False
Puebla
1. Edificio Carolino, Calle 4 Sur 104, Centro, Puebla, Puebla.
2. Ciudad Universitaria 2, Calle Heberto Rodríguez N°119, Colonia San Antonio Toluquilla, C.P. 72960, San Pedro Zacachimalpa, Puebla
2026-10-19T07:30:00
2026-10-23T19:30:00
2026-07-01T10:52:23
2026-10-30T16:10:28
Mexico/General
Prof.
Benemérita Universidad Autónoma de Puebla
65efd11437264d48aa1f7486255a57bc
Dr.
Universidad de Guanajuato
0bba80e6b6d806cda49089f089616ab2
Dr.
BUAP
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Dr.
Benemerita Universidad Autonoma de Puebla
398909c50ebb53abfbd6c5540e4e5066
44
false
[["0", "Event Poster"], ["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]]
1
Short Talk
The $\tau \to \pi^-\omega\nu_\tau$ spectral function and its contribution to $\tau \to \pi^-\pi^0\nu_\tau\gamma$ decay
Mr.
Instituto de Física
9752028ff7d80cb75b744abb407d8f30
Mr.
Instituto de Física
9752028ff7d80cb75b744abb407d8f30
Dr.
Instituto de Fisica, UNAM
d39c6e975406739903589c278bec3a10
Dr.
IFUNAM
af7a41574d90000f0802c7e6e52a6e68
Mr.
Istituto de Física UNAM
4dd1f0ce0a620a4ea60a1a50855b1e64
Puebla
1. Edificio Carolino, Calle 4 Sur 104, Centro, Puebla, Puebla.
2. Ciudad Universitaria 2, Calle Heberto Rodríguez N°119, Colonia San Antonio Toluquilla, C.P. 72960, San Pedro Zacachimalpa, Puebla
2026-10-22T15:50:00
2026-10-22T16:00:00
00:10
We describe the $\omega\pi$ spectral function, measured in the decay
$\tau^- \to \pi^-\omega\nu_\tau$ by the CLEO Collaboration, using an
importance sampling procedure to explicitly account for the correlation
between the parameters of the corresponding form factor. We exhibit the
improvement in the uncertainties, compared to the uncorrelated case, and
show the agreement with the expected from the measurement of the cross
section of $e^+e^- \to \omega\pi$ by SND experiment, which validates the
conserved vector current (CVC) hypothesis. The generated data set of the
parameters is used to compute the branching ratio of the decay, which is
found to be consistent with the reported value by the PDG.
As an application, we consider the $\omega$-channel of the
$\tau^- \to \pi^-\pi^0\nu_\tau\gamma$ process, the leading model
dependent contribution in the vector meson dominance approach. We compute
the contribution to the long distance electromagnetic correction function
$G_{\mathrm{em}}(t)$, of the pure $\omega$-channel and its interference
with the structure independent part.
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