CCPP events include astrophysics seminars, high energy seminars, experimental particle physics (hep-ex) seminars, Colloquium, CCPP Brown Bag, and some group meetings, informal talks, etc.. Events can be viewed with Events Daily,  Events List or Events Calendar format.

Upcoming Events

Probing Dusty Galaxies with FIR Surveys
Anthony Pullen, New York University
Event Type: CCPP Brown Bag
Date: Monday, March 17, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Carol Cuesta Lazaro, MIT; Harvard-Smithsonian Center for Astrophysics
Event Type: Astro Seminar
Date: Tuesday, March 18, 2025
Time: 11:15 AM - 12:30 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, March 19, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Quantum mechanics and observers for gravity in a closed universe
Daniel Harlow, MIT
Event Type: HEP Seminar
Date: Wednesday, March 19, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Recently there have been several arguments given for the seemingly absurd statement that the Hilbert space of quantum gravity in a closed universe is one-dimensional. How can this be consistent with the richness of our daily experience? In this talk I will review the arguments for a one-dimensional Hilbert space, and then present a possible resolution based on the idea that to do quantum mechanics in a closed system it is necessary to explicitly include a classical observer in the system.

A CFT Dual for Celestial MHV Amplitudes
Tianli Wang, Harvard University
Event Type: Informal HEP Talk
Date: Friday, March 21, 2025
Time: 1:00 PM - 2:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: I will talk about a 2d CFT dual we constructed for 4d gluon MHV amplitudes in flat space, based on the papers 2403.18896 and 2312.07820. I will start with reviewing relevant basics of celestial holography, in particular, the challenges of understanding the role of translation invariance in the CFT dual. Then I will discuss the central object in my talk, leaf amplitudes, which are smooth functions that bridge usual (singular) flat space amplitudes and our simple CFT dual. I will then introduce the CFT dual, whose correlators reproduce gluon MHV amplitudes. It comprises two sectors, one with free fermions that give a current algebra, the other being Liouville theory. The key step is to show correlators of light operators in the semiclassical limit of Liouville theory are scalar contact Witten diagrams.

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, March 21, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

SPRING BREAK; Campus Closed
Event Type: Holiday
Date: Monday, March 24, 2025
Time: -
Location:

Rhine Samajdar
Event Type: Other
Date: Monday, March 24, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

SPRING BREAK; Campus Closed
Event Type: Holiday
Date: Tuesday, March 25, 2025
Time: -
Location:

SPRING BREAK; Campus Closed
Event Type: Holiday
Date: Wednesday, March 26, 2025
Time: -
Location:

SPRING BREAK; Campus Closed
Event Type: Holiday
Date: Thursday, March 27, 2025
Time: -
Location:

SPRING BREAK; Campus Closed
Event Type: Holiday
Date: Friday, March 28, 2025
Time: -
Location:

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, March 28, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

TBA
Aurelio Amerio, IFIC, University of Valencia
Event Type: Informal HEP Talk
Date: Monday, March 31, 2025
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

TBA
Bart Ripperda, Canadian Institute for Theoretical Astrophysics
Event Type: Astro Seminar
Date: Tuesday, April 1, 2025
Time: 11:00 AM - 12:15 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, April 2, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Csaba Csaki, Cornell University
Event Type: HEP Seminar
Date: Wednesday, April 2, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, April 4, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

TBA
Dalimil Mazac, Institut de Physique Theorique, CEA Saclay
Event Type: Special Seminar
Date: Monday, April 7, 2025
Time: 11:00 AM - 12:15 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, April 9, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Lorenzo Ricci, University of Maryland
Event Type: HEP Seminar
Date: Wednesday, April 9, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

Centaur Science: Particle Physics meets Machine Learning
Jesse Thaler, Massachusetts Institute of Technology
Event Type: Physics Dept Colloquium
Date: Thursday, April 10, 2025
Time: 4:00 PM - 5:30 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Modern machine learning has had an outsized impact on many scientific fields, and particle physics is no exception. What is special about particle physics, though, is the vast amount of theoretical knowledge that we already have about many problems in the field, as well as the daunting deluge of data coming from flagship experiments like the Large Hadron Collider (LHC). In this colloquium, I will explain how one can teach a machine to "think like a physicist" by embedding theoretical principles into advanced machine learning architectures. At the same time, I will advocate that physicists must learn how to "think like a machine" to maximize the physics reach of the LHC. These joint developments are leading to a new kind of "centaur science" that, analogously to the mythical centaur, draws half from particle physics and half from machine learning.

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, April 11, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

TBA
Julien Lavalle, Laboratoire Univers et Particules de Montpellier
Event Type: Astro Seminar
Date: Tuesday, April 15, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, April 16, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Michael Baker, University of Massachusetts Amherst
Event Type: HEP Seminar
Date: Wednesday, April 16, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, April 18, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

Generalized Symmetries for the Generalist
Marius Kongsore, New York University
Event Type: CCPP Brown Bag
Date: Monday, April 21, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Nat Levine
Event Type: Informal HEP Talk
Date: Monday, April 21, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Gabriela Sato-Polito, Institute for Advanced Study
Event Type: Astro Seminar
Date: Tuesday, April 22, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, April 23, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Giovanni Villadoro, ICTP, Trieste
Event Type: HEP Seminar
Date: Wednesday, April 23, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, April 25, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

TBD!
Marcus DuPont, Princeton University
Event Type: CCPP Brown Bag
Date: Monday, April 28, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Risa Wechsler, Stanford University
Event Type: Astro Seminar
Date: Tuesday, April 29, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Dan Green, UC San Diego
Event Type: HEP Seminar
Date: Wednesday, April 30, 2025
Time: 11:30 AM - 1:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, April 30, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, May 2, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

TBA
Tetyana Pitik, University of California, Berkeley
Event Type: Astro Seminar
Date: Tuesday, May 6, 2025
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, May 7, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Calkins
Event Type: Hep-Th Discussion Session
Date: Friday, May 9, 2025
Time: 3:30 PM - 4:30 PM
Location: 726 Broadway, 902, Lg Conf

HEP Journal Club
Event Type: HEP Journal Club
Date: Wednesday, May 14, 2025
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar