School and Workshop on Amplitudes in Beijing 2016

Date :From 2016-10-10 To 2016-10-21
Advisory committee :
Local coordinators :Bo Feng (Zhejiang Unviersity), Song He (ITP-CAS), Gang Yang (ITP-CAS)
International coordinators :Nima Arkani-Hamed (IAS, Princeton), Zvi Bern (UCLA), David Kosower (CEA, Saclay)

This is an ITP - KITPC joint workshop and school.

As fundamental observables in quantum field theory and string theory, scattering amplitudes have played a central role in fundamental physics. During recent years tremendous progress has been made in understanding the structure of scattering amplitudes as well as powerful new methods to compute them. These developments not only enhance computational efficiency which has phenomenologically relevant applications, but also provides important new insights to the fundamental problems in quantum field theory and string theory, such as non-perturbative dynamics in gauge theory and quantum gravity.

The remarkable advance in the study of amplitudes has been the cross-fertilization of various research directions, and has inspired significant developments in them. These include precision calculations in QCD, mathematical structures of gauge and gravity amplitudes, AdS/CFT integrability, perturbative structures of quantum gravity and string theory and many more. We believe by organizing a workshop focusing on the scattering amplitudes, in particular a school with leading experts as lecturers will help to promote the development of this important field in China.


This will be the first major workshop on scattering amplitudes in mainland China. It will also be the third of a series of "Amplitudes in Asia” workshops: the first of which was held at IAS, HKUST in Nov 2014 (http://iasprogram.ust.hk/201411amp/), and the second at NTU in Taipei in Nov 2015 (http://phys.cts.nthu.edu.tw/actnews/content.php?Sn=241). The primary goal is to introduce this field to a new generation of young scientists mainly in China as well as other countries in Asia. We plan to have a program of two weeks. The first week will be a school with pedagogical lectures for graduate students and young researchers. The topics will range from basics of amplitudes, such as on-shell methods and integration techniques, to various frontier topics, such as scattering equations and integrability methods. In the second week, we plan to have a workshop with advanced research talks on the latest developments.

Amplitudes School and Workshop in Beijing
 
First week: Oct 10-15
 
 
Johannes Henn: Loop amplitudes and integral techniques
Yu-tin Huang:
General S-matrix constraints on perturbative interactions: massive and massless
Henrik Johansson: Constructing Gravity Theories from Gauge Theories
Jan Plefka:
Spinor helicity, tree-level amplitudes, BCFW recursion, superamplitudes and symmetries
Jaroslav Trnka:
Grassmannian geometry of scattering amplitudes
Pedro Vieira: The S-matrix bootstrap
Yang Zhang:
Integral reductions and applied algebraic geometry techniques
 

 
Mon
Oct 10
Tue
Oct 11
Wed
Oct 12
Thu
Oct 13
Fri
Oct 14
Sat
Oct 15
9:00-10:00
Plefka
Plefka
Huang
Henn
Johansson
Trnka
10:15-11:15
Plefka
Zhang
Huang
Henn
Johansson
Trnka
11:30-12:30
Zhang
Zhang
 
Johansson
Henn
Vieira
Lunch break
 
 
 
 
 
 
14:00-15:00
Plefka
Huang
 
Henn
Trnka
Vieira
15:15-16:15
Zhang
Huang
 
Johansson
Vieira
 
Discussions
 
 
 
 
 
 

 

Second week: Oct 17-21

 
Public lecture by Nima Arkani-Hamed in the evening of Oct 19th (Wednesday)
“China and the Future of Fundamental Physics”
 

 
Mon
Oct 17
Tue
Oct 18
Wed
Oct 19
Thu
Oct 20
Fri
Oct 21
9:30-10:30
Dixon
Henn
Korchemsky
Boels
Damgaard
Coffee break
 
 
 
 
 
11:00-12:00
Bourjaily
Wilhelm
Arkani-Hamed
Schlotterer
Bjerrum-Bohr
12:00-12:30
G. Zhang
Rao
Luo
Cardona
Lunch break
 
 
 
 
 
14:00-15:00
Trnka
Johansson
Arkani-Hamed
lectures + free discussions
Zhu
Y. Zhang
Coffee break
 
 
 
 
15:30-16:30
Vieira
Yin
Tourkine
Kosower
16:30-17:00
 
 
 
 
 
18:00-
 
Dinner
Arkani-Hamed
 
 

  
N. Arkani-Hamed: 1. Unwinding the Amplituhedron
2. On the projective geometry of amplitudes, or, Polylogs from Loop Integrals for Dummies
N. Bjerrum-Bohr: Analytic expressions for amplitudes in the scattering equations formalism and manifest color-kinematics relations
R. Boels:Gluon and Graviton Scattering from First Principles
J. Bourjaily: Grassmannian Geometry Beyond the Planar Limit
P. Damagaard: A string-like construction of scalar amplitudes 
L. Dixon: The Steinmann-assisted bootstrap at five loops 
J. Henn: Four-gluon scattering at three loops, infrared structure and Regge limit 
H. Johansson: TBA 
D. Kosower: Recursion for Integral Coefficients 
G. Korchemsky: TBA 
O. Schlotterer: Z-theory — non-linear sigma model amplitudes and more from open strings 
P. Tourkine: The null string origin of the ambitwistor string 
J. Trnka: Geometry of Nonplanar Amplitudes 
P. Vieira: TBA 
M. Wilhelm: Form factors in N=4 SYM theory and beyond 
X. Yin: Non-renormalization properties from superamplitudes 
Y. Zhang: TBA 
H. Zhu: Rapidity Renormalization Group and pT Resummation
 
Short talks
 
Carlos Cardona: CHY-framework at one-loop
Hui Luo: On-shell recursion relations for generic integrands
Junjie Rao:  Grassmannian Geometry and Simplex-like Structures of Scattering Amplitudes