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 71 false [["0", "Event Poster"], ["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] 1 Short Talk Student 8120532dd5f4884fe457b43806e535b7 Benemérita Universidad Autónoma de Puebla 76e2afa795bbf43ae7c31c60d3a82fd3 Student 8120532dd5f4884fe457b43806e535b7 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

2026-10-23T16:10:00 2026-10-23T16:20:00 00:10 Higgs pair production via gluon fusion, $gg \to HH$, probes the Higgs trilinear self-coupling and is loop-induced already at leading order, which makes it sensitive to new colored states. We study the one-loop effects of the scalar leptoquark $S_{1} \sim(\bar{3},1,1/3)$, including its full yukawa sector and a Higgs portal coupling $\lambda_{S_{1H}}|H|^2|S_1|^2$. We implement the model in FeynRules and use NLOCT to generate a UFO with UV counterterms and $R_2$ terms for MadGraph5_aMC@NLO; it reproduces the Standard Model cross section at $14$TeV to $0.06\%$ and yields a UV-finite renormalized $HHH$ vertex. Independently, we compute the full one-loop amplitude (30 diagramas with tirangle, box and contact topologies) with FeynArts and FeynCalc, reduced to Passarino-Veltman functions;it is UV finite and satisfies the Ward identity for each class of diagrams. Both calculations agree for the partonic cross section between 260GeV and 1TeV. For $M_{S_1}=1$TeV and $\lambda_{S_1H}=1$, the relative effect ranges from about $-15\%$ near threshold to $+2\%$ at $1$TeV, and amounts to $-1.0\%$in the hadronic cross section at $14$TeV. The corrected trilinear vertex alone accounts for less than $10\%$ of the effects, which is driven by $S_1$ loops coupled to the gluons. We discuss the extension to the Manohar-Wise color octet and the $4321$ model at future collider energies. slides 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 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