2675 DPyC SMF false [["0", "Event Poster"], ["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] Cinvestav ea481e58ca9c64e14d7982cb66bcd604 3312 <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, M&eacute;xico. The format of the school is&nbsp;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 M&eacute;xico. ​</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)&nbsp;[UGTO]</p> <p style="text-align:justify"><em><u><strong>Local Organizing Committee</strong></u></em></p> <p style="text-align:justify">Dr. Haydee Hern&aacute;ndez [BUAP]<br /> Dr. Arturo Fern&aacute;ndez [BUAP]<br /> Dr. Humberto Salazar [BUAP]<br /> Dr. Olga F&eacute;lix Beltr&aacute;n [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 Benemérita Universidad Autónoma de Puebla 65efd11437264d48aa1f7486255a57bc Universidad de Guanajuato 0bba80e6b6d806cda49089f089616ab2 BUAP 5848375cb8b0db28e94350f19dcb744f Benemerita Universidad Autonoma de Puebla 398909c50ebb53abfbd6c5540e4e5066 36 false [["0", "Event Poster"], ["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] 1 Short Talk PhD Student, BUAP 96d7d303b52eb75e721af205d50a5639 PhD Student, BUAP 96d7d303b52eb75e721af205d50a5639 Cinvestav, BUAP d760dba590c3485c01ed79d6c77498de 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

2026-10-20T18:10:00 2026-10-20T18:20:00 00:10 We describe an ongoing analysis performed with the CMS experiment, studying decays of the heavy flavor baryon $\Xi^{-}_b$. The main result is the measurement of the branching fraction of $\Xi^{-}_b \to \Xi^{-} \psi(2S)$ relative to the normalization channel $\Xi^{-}_b \to \Xi^{-} J/\psi$, achieved with improved precision compared to previous measurements. The previous measurement of this ratio was found to deviate from the trend observed in analogous $b$-meson decays, and with the full statistics available from Run 3, this analysis aims to test whether this deviation persists. The analysis is based on a sample of $pp$ collisions at $\sqrt{s} = 13.6~$TeV, collected during the 2022, 2023, 2024, and 2025 running periods of Run 3 of the LHC, corresponding to an integrated luminosity of 279~fb$^{-1}$. These are preliminary results and are subject to change. 0 doc http://indico.nucleares.unam.mx/images/word.png word file ppt http://indico.nucleares.unam.mx/images/powerpoint.png powerpoint file pdf http://indico.nucleares.unam.mx/images/pdf_small.png pdf file odt http://indico.nucleares.unam.mx/images/writer.png writer file odp http://indico.nucleares.unam.mx/images/impress.png presentation file ods http://indico.nucleares.unam.mx/images/calc.png spreadsheet file other http://indico.nucleares.unam.mx/images/file_small.png unknown type file link http://indico.nucleares.unam.mx/images/link.png link