# On Fine Structure of Strings: The Universal Correction to the Veneziano Amplitude

- Institution: CERN
- Department: Theory Colloquium
- Speaker: Alexander Zhiboedov
- Year: 2017
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3008363)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

We consider theories of weakly interacting higher spin particles in flat spacetime. We focus on the four-point scattering amplitude at high energies and imaginary scattering angles. The leading asymptotic of the amplitude in this regime is universal and equal to the corresponding limit of the Veneziano amplitude. In this paper, we find that the first sub-leading correction to this asymptotic is universal as well. We compute the correction using a model of relativistic strings with massive endpoints. We argue that it is unique using holography, effective theory of long strings and bootstrap techniques. .

0:00:00 Slide 1

0:02:52 Slide 2

0:03:19 Slide 3

0:04:03 Slide 4

0:04:31 Slide 5

0:05:11 Slide 6

0:05:29 Slide 7

0:05:41 Slide 8

0:06:18 Slide 9

0:06:44 Slide 10

0:07:15 Slide 11

0:08:10 Slide 12

0:08:46 Slide 13

0:08:59 Slide 14

0:09:15 Slide 15

0:09:33 Slide 16

0:09:46 Slide 17

0:10:15 Slide 18

0:10:20 Slide 19

0:10:34 Slide 20

0:10:53 Slide 21

0:11:04 Slide 22

0:11:17 Slide 23

0:11:28 Slide 24

0:11:44 Slide 25

0:12:16 Slide 26

0:12:50 Slide 27

0:12:55 Slide 28

0:13:14 Slide 29

0:14:02 Slide 30

0:14:23 Slide 31

0:14:51 Slide 32

0:14:58 Slide 33

0:15:15 Slide 34

0:15:49 Slide 35

0:16:00 Slide 36

0:16:20 Slide 37

0:17:16 Slide 38

0:17:40 Slide 39

0:18:29 Slide 40

0:18:46 Slide 41

0:18:56 Slide 42

0:19:08 Slide 43

0:19:57 Slide 44

0:20:08 Slide 45

0:20:23 Slide 46

0:20:51 Slide 47

0:21:06 Slide 48

0:21:21 Slide 49

0:22:18 Slide 50

0:22:22 Slide 51

0:22:28 Slide 52

0:22:32 Slide 53

0:22:37 Slide 54

0:22:50 Slide 55

0:22:54 Slide 56

0:23:12 Slide 57

0:23:16 Slide 58

0:23:38 Slide 59

0:24:17 Slide 60

0:24:36 Slide 61

0:24:40 Slide 62

0:24:45 Slide 63

0:26:06 Slide 64

0:26:22 Slide 65

0:27:34 Slide 66

0:27:46 Slide 67

0:28:04 Slide 68

0:28:44 Slide 69

0:29:22 Slide 70

0:29:32 Slide 71

0:30:20 Slide 72

0:31:44 Slide 73

0:31:49 Slide 74

0:32:50 Slide 75

0:33:23 Slide 76

0:33:37 Slide 77

0:33:45…

## Lectures

1. [On Fine Structure of Strings: The Universal Correction to the Veneziano Amplitude](https://invisiblenetwork.ai/learn/cern/3008363/93d867b78a5c), 1 h 15 min (CERN's player)