{"id":416,"date":"2026-04-24T13:35:05","date_gmt":"2026-04-24T13:35:05","guid":{"rendered":"https:\/\/projects.ift.uam-csic.es\/Coloquios_DIFT\/?p=416"},"modified":"2026-08-05T10:25:49","modified_gmt":"2026-08-05T10:25:49","slug":"dift-benjamin-grinstein","status":"publish","type":"post","link":"https:\/\/projects.ift.uam-csic.es\/Coloquios_DIFT\/2026\/04\/24\/dift-benjamin-grinstein\/","title":{"rendered":"DIFT: Benjamin Grinstein"},"content":{"rendered":"\n
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Sigue el Coloquio en directo en ZOOM<\/h2>\n

\n El acceso se abrir\u00e1 unos minutos antes del inicio. Haz clic en el bot\u00f3n para unirte.\n <\/p>\n \n \ud83d\udd17 Unirme por Zoom\n <\/a>\n

\n Si el bot\u00f3n no funciona, copia y pega este enlace en tu navegador:
\n https:\/\/urldefense.com\/v3\/__https:\/\/us02web.zoom.us\/j\/83038393323?pwd=D15OuSwa2oC0jwhQ5dVxL3EFQa1pY8.1__;!!D9dNQwwGXtA!VU_U8ywnFWf0dOjJtY5dVOLiJF1jKZSQLwC6eTqZETDgipqQ6JE85R72emx8yYlednbzTSYcdwTGLapxSYhfkN96SmZ_-ag$<\/span>\n\nMeeting ID: 830 3839 3323\n\nPasscode: 211261\n\n <\/p>\n<\/div>\n\n\n\n\n\n

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\n \n \ud83c\uddea\ud83c\uddf8 \/ \ud83c\uddec\ud83c\udde7\n <\/button>\n <\/div>\n\n \n
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\n Pr\u00f3ximo DIFT Colloquium: Benjamin Grinstein\n <\/h2>\n\n

\n Nos complace anunciar una nueva sesi\u00f3n del ciclo\n DIFT Colloquia<\/em>, que contar\u00e1 con la participaci\u00f3n de\n Benjamin Grinstein<\/strong>\n (University of California, San Diego<\/strong>).\n <\/p>\n\n

\n La charla tendr\u00e1 lugar el\n mi\u00e9rcoles 13 de mayo de 2026<\/strong>, a las\n 15:30<\/strong>, en el\n Auditorio del CFTMAT<\/strong>.\n Tras la sesi\u00f3n, compartiremos un coffee<\/strong> en el que\n tendremos la oportunidad de continuar la conversaci\u00f3n, intercambiar\n ideas e interactuar con el ponente en un ambiente m\u00e1s distendido.\n <\/p>\n\n

\n El t\u00edtulo del coloquio es\n Buckets versus pipes: the neutron lifetime puzzle<\/em><\/strong>.\n <\/p>\n\n

\n El abstract del coloquio es el siguiente:<\/strong>\n <\/p>\n\n

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\n \u00abA precise knowledge of the neutron lifetime is important because it\n serves as a fundamental input for Big Bang Nucleosynthesis (BBN)\n models, which predict the primordial abundances of light elements.\n It also enters in the determination of the Cabbibbo mixing angle,\n crucial in testing the validity of the CKM theory of quark flavor,\n in understanding reactor neutrino detection rates and the behavior\n of matter in extreme environments like neutron stars. Precise\n experiments give very precise results, but the values determined\n differ by over 1% with high statistical significance) depending on\n the technology used for the experiment. In this talk I will review\n this so-called \u201cneutron lifetime puzzle\u201d and some of the proposed\n solutions.\u00bb\n

\n Benjamin Grinstein<\/strong>
\n Distinguished Professor of Physics
\n UCSD\n <\/p>\n <\/p>\n <\/div>\n\n \n\n

\n \ud83d\udd39 Est\u00e1is todos invitados<\/strong> a asistir y a participar\n en la discusi\u00f3n posterior durante el coffee.\n <\/p>\n\n <\/div>\n\n \n

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\n Next DIFT Colloquium: Benjamin Grinstein\n <\/h2>\n\n

\n We are pleased to announce a new session of the\n DIFT Colloquia<\/em> series featuring\n Benjamin Grinstein<\/strong> from the\n University of California, San Diego<\/strong>.\n <\/p>\n\n

\n The talk will take place on\n Wednesday, 13 May 2026<\/strong>, at\n 15:30<\/strong>, in the\n CFTMAT Auditorium<\/strong>.\n After the talk, we will have a coffee gathering<\/strong>,\n offering participants the opportunity to continue the discussion,\n exchange ideas and interact with the speaker in a more informal setting.\n <\/p>\n\n

\n The colloquium is entitled\n Buckets versus pipes: the neutron lifetime puzzle<\/em><\/strong>.\n <\/p>\n\n

\n The abstract of the colloquium is as follows:<\/strong>\n <\/p>\n\n

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\n A precise knowledge of the neutron lifetime is important because it\n serves as a fundamental input for Big Bang Nucleosynthesis (BBN)\n models, which predict the primordial abundances of light elements.\n It also enters in the determination of the Cabbibbo mixing angle,\n crucial in testing the validity of the CKM theory of quark flavor,\n in understanding reactor neutrino detection rates and the behavior\n of matter in extreme environments like neutron stars. Precise\n experiments give very precise results, but the values determined\n differ by over 1% with high statistical significance) depending on\n the technology used for the experiment. In this talk I will review\n this so-called \u201cneutron lifetime puzzle\u201d and some of the proposed\n solutions.\n <\/p>\n <\/div>\n\n

\n Benjamin Grinstein<\/strong>
\n Distinguished Professor of Physics
\n UCSD\n <\/p>\n\n

\n \ud83d\udd39 Everyone is warmly invited<\/strong> to attend the talk and\n join the discussion afterwards during the coffee.\n <\/p>\n\n <\/div>\n\n