Belle II Theory Interface Platform (B2TIP)

Overview

The "Belle II-Theory Interface Platform" is a joint theory-experiment effort to study the potential impacts of the Belle II program.

We plan to organise meetings twice a year gathering theory experts and Belle II members, starting from June 2014 until the end of 2016.

One of the expected outcomes of the project is a "KEK Green Report", summarising all the important observables which will be measured at Belle II, their experimentally achievable precision and their impact on our understanding of the theory (Standard Model and New Physics). This report should also include a "milestones table" clarifying the targets for the first 5 to 10 ab-1 of data as well as for the final goal at 50 ab-1.

Report status and current draft ( link ).

Table of golden modes ( link ).

B2TiP minutes/proceedings ( invenio )

This project is an official activity of Belle II, approved by the executive board of the Belle II Collaboration in February 2014.

Workshop Dates

The 2014 meetings will be held at KEK in June and November, as a satellite meeting of the Belle and Belle II General meetings. There is a possibility of holding one workshop in 2015 at an external location. Individual working groups may choose to hold additional meetings. Please register for the meetings on the linked indico pages.

B2TIP Meeting	Meeting Agenda	Belle (II) associated meetings
2014 June 16-17 @ KEK	workshop indico	B2GM June 18-21, BGM June 22-23
2014 October 30-31 @ KEK, merged with KEKFF October 28-29. @ KEK	workshop indico	B2GM November 3-6, BGM November 7-8
2015 February 23-25, New Physics WG @ KIT (Local organiser U. Nierste)	workshop indico
2015 April 27-29 @ Krakow (Local organiser A. Bozek)	workshop indico
2015 October 28-29 @ KEK, merged with KEKFF October 26-27 (Tokyo)	workshop indico	BGM October 15-16, B2GM October 19-23
2015 November 9-10 @ PNNL, New physics & EWP WGs	workshop indico
2016 February 22-24 @ LAL, New physics "Follow-up" meeting	workshop indico
2016 May 23-25 @ Pittsburgh (local organiser V. Savinov)	workshop indico
2016 October 10, Belle II impact plot meeting (Preparation for MIAPP Meeting)	workshop indico
2016 November 15-17, Editorial meeting @ MIAPP Munich	workshop indico

Committees

Organising Commitee

Emi Kou	LAL
Phillip Urquijo (B2 Physics Coord.)	Melbourne

Ex Officio

Francesco Forti (B2 EB Chair)	Pisa
Thomas Browder (B2 Spokesperson)	Hawaii
Marco Ciuchini (KEK FF Advisory)	Rome
Thomas Mannel (KEK FF Advisory)	Siegen

Report Editors

Christoph Schwanda	HEPHY Vienna
Satoshi Mishima	KEK-Theory

Advisory Committee

Tim Gershon	Warwick
Bostjan Golob	IJS Ljubljana
Shoji Hashimoto	KEK
Francois Le Diberder	LAL
Zoltan Ligeti	LBL
Hitoshi Murayama	IPMU
Matthias Neubert	Mainz
Yoshihide Sakai	KEK
Junko Shigemitsu	Ohio

Working Groups

The WG definitions and their scopes are given below. They are a guide only, some topics will be of higher priority than others.

WG

Overview

Coordinators

WG1

Semileptonic & Leptonic B decays

Semileptonic , transitions: , , New physics.
- Exclusive
- Inclusive
Semileptonic and transitions with tau leptons
Charged leptonic decays,
Radiative leptonic decays,

Guglielmo De Nardo (Naples)

Anze Zupanc (IJS Slovenia)

Minoru Tanaka (Osaka)

Frank Tackmann (DESY)

Ryoutaro Watanabe (IBS)

A. Kronfeld (Fermilab)

WG2

Radiative & Electroweak Penguins

Radiative
- Inclusive radiative decays: gamma via inclusive, partial and full reconstruction tagging methods.
- Inclusive radiative decays: and via sum of exclusive methods.
- Exclusive radiative decays (polarisation and asymmetries):
  - : , ,
  - : ,,
- TCPV in Radiative decays, e.g. , (overlap with bottom)
Electroweak
- EWP with neutrinos, ,
- Inclusive dilepton decays via sum of exclusive, and fully inclusive methods:
- Exclusive dilepton decays with a focus on electron modes:
Rare and forbidden
- Neutral leptonic decays, , ,
- Lepton flavour and number violating decays,

Akimasa Ishikawa (Tohoku)

Jared Yamaoka (PNNL)

Ulrich Haisch (Oxford)

Thorsten Feldman (Siegen)

WG3

alpha = phi_2 & beta = phi_1

: , ,
:
- precision in ,
- New phases in transitions, , ,
TCPV in Radiative decays, e.g. , (overlap with above)

Luigi Li Gioi (MPI Munich)

Alessandro Gaz (Nagoya)

Jure Zupan (Cincinnati)

Satoshi Mishima (KEK)

WG4

Gamma = phi_3

Charm CP Eigenstates, GLW method (Gronau- London- Wyler) e.g.
Doubly Cabbibo suppressed decays, ADS method (Atwood- Dunietz- Soni), e.g.
Three body decays, GGSZ Dalitz method (Giri- Grossman- Soffer - Zupan), e.g. ,
Combined GLW+ADS method e.g. , ,

Jim Libby (Madras)

Ian Watson (Tokyo)

Yuval Grossman (Cornell)

Monika Blanke (CERN)

WG5

Charmless Hadronic B Decay

Direct CP Violation
modes, angular analyses
Charmless hadronic modes,
2 body
3 body with Dalitz methods,
Hadronic decays
QCD factorisation, flavour symmetry breaking

Pablo Goldenzweig (KIT)

Martin Beneke (TUM)

Cheng-Wei Chiang (NCU)

S. Sharpe (Washington)

WG6

Charm

mixing
TCPV in Charm
Direct CPV in Charm
Radiative decays $D \rightarrow V\ \gamma$
Rare/Forbidden charm decays and NP: ,
Leptonic and Semileptonic charm decays

Giulia Casarosa (Pisa)

Alan Schwartz (Cincinnati)

Alexey Petrov (Wayne)

Alex Kagan (Cincinnati)

WG7

Quarkonium(like)

Bottomonia at
Inclusive baryon and meson production in decays
Energy scan studies of bottomonia
Charmonia, exotic, charmonium-like
- below the open-charm threshold
- above the open-charm threshold
-Hadron production at

Roman Mizuk

(ITEP)

Roberto Mussa (Torino)

Chengping Shen (Beihang)

Bryan Fulsom (PNNL)

Christoph Hanhart (Juelich)

Yuichiro Kiyo (Juntendo)

Antonello Polosa (Rome)

S. Prelovsek (Ljubljana)

WG8

Tau, low multiplicity & EW

Tau
- Lepton flavour violating decays
- properties
- Lepton universality
- CP Violation
- Precision measurements of SM decays
Low multiplicity
Two Photon Physics
Precision electroweak physics ("LEP"-physics)
Searches for dark photon in direct production (via kinetic mixing) and exotic final states

Kiyoshi Hayasaka (Niigata)

Torben Ferber (UBC)

Emilie Passemar (Indiana U.)

Junji Hisano (Nagoya)

WG9

New Physics

The organisation of this working group is different to the other groups, covering:

Benchmark models/points for 5, 10, 50 data (create a “milestone table; which indicates the goal for 5, 10, 50 for given new physics models (providing theoretical predictions for various physics processes with those models))
Model dependent/independent constraints fit (to prepare the constraints figure for given observables, public code for the fits)
Relation to measurements from other experiments (e.g. LHC, neutrino, dark matter, future experiments)