Implications of LHCb measurements and future prospects

8 Nov 2017, 08:30 → 10 Nov 2017, 14:30 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

Alexander Lenz (IPPP, Durham), Chris Parkes (University of Manchester (GB)), David Straub (Excellence Cluster Universe, Munich), Fulvia De Fazio (Universita e INFN, Bari (IT)), Giovanni Passaleva (INFN Florence (IT)), Marie-Helene Schune (Laboratoire de l'Accelerateur Lineaire (FR)), Patrick Koppenburg (Nikhef National institute for subatomic physics (NL)), Timothy Gershon (University of Warwick (GB)), Vincenzo Vagnoni (Universita e INFN, Bologna (IT))

This is the 2017 edition of a series of workshops between the LHCb collaboration and the theory community. It follows similar meetings held on 10-11 Nov. 2011, 16-18 April 2012 (which resulted in a paper published in EPJ C 73 (2013) 2373), 14-16 Oct. 2013, 15-17 Oct. 2014, 3-5 Nov. 2015 and 12-14 Oct. 2016. 

The purpose of the meeting is to consider the latest results from LHCb, discuss possible interpretations and identify important channels and observables to test leading theoretical frameworks in the near future of LHCb data-taking.

The meeting will be arranged in four streams, with three conveners each.

• Mixing and CP violation in Beauty and Charm [Stefan Schacht, Alex Pearce, Wenbin Qian, email all]
• Semileptonic decays, rare decays, and tests of lepton flavour universality [Danny van Dyk, Marianna Fontana, Stefanie Reichert, email all]
• Electroweak physics, heavy flavour production, implications for (n)PDFs, and exotica searches [Rhorry Gauld, Martino Borsato, Emilie Maurice, email all]
• QCD spectroscopy and exotic hadrons [Graham Moir, Jibo He, Ivan Polyakov, email all]

All interested theorists are welcome to participate, and are encouraged to register at the workshop INDICO page (there is no registration fee).  To express interest in giving a presentation, please contact the conveners (once defined) of the relevant stream.  Unfortunately, to allow informal discussion, we must restrict the participation to exclude members of competing experiments.

The workshop will start on Wednesday 8/11 at 8h30 and end on Friday 10/11 lunchtime.

Participants should arrange their own accommodation (e.g. at the CERN hostel).  For administrative matters (e.g. concerning external access to CERN), please contact the LHCb Secretariat. If while booking a room at the CERN hostel you are required to specify a reference email address at CERN, please use LHCb.Secretariat@cern.ch

Organising committee: Fulvia De Fazio, Tim Gershon, Patrick Koppenburg, Alexander Lenz, Chris Parkes, Giovanni Passaleva, Marie-Helene Schune, David Straub, Vincenzo Vagnoni (chair), e-mail all

General questions: Vincenzo Vagnoni

 

 

Wednesday, 8 November

1 Introduction and welcome

Speaker: Vincenzo Vagnoni (CERN and INFN Bologna)

Introduction implications 2017.pdf

Semileptonic decays, rare decays, and tests of lepton flavour universality (session 1)

Conveners: Danny van Dyk (University of Zurich (CH)), Marianna Fontana (Universita e INFN, Cagliari (IT)), Stefanie Reichert (Technische Universität Dortmund)

2 Experimental overview on rare decays at LHCb (20'+5')

Speaker: Simone Bifani (University of Birmingham (GB))

iw17.pdf

3 $b \to sl^+l^-$ fits in review (25'+5')

Speaker: Sebastien Descotes-Genon (Laboratoire de Physique Théorique d'Orsay)

slides.pdf

4 Long-distance effects in $B \to K^\ast\mu\mu$ from analyticity (20'+5')

Speaker: Javier Virto (Massachusetts Institute of Technology)

ImplicationsCERN17.pdf

5 An experimentalist's take on modelling the long-distance contributions to $B\to K^\ast\mu\mu$ (15'+5')

Speaker: Gabriela Johanna Pomery (University of Bristol (GB))

gpomery-lhcb-implications-workshop.pdf

10:15 Coffee break

6 Direct determination of Wilson coefficients using $B\to K^\ast\mu\mu$ decays (15'+5')

Speaker: Christoph Michael Langenbruch (Rheinisch Westfaelische Tech. Hoch. (DE))

langenbruch.pdf

7 Prospects for model-independent data-driven analyses of the decay $B \to K^\ast\mu\mu$ (20'+5')

Speaker: Andrea Mauri (Zurich University)

6-Implication-Workshop.pdf

8 Slot for further discussions or buffer for previous overruns

QCD spectroscopy and exotic hadrons (session 1)

Conveners: Dr Graham Moir (University of Cambridge), Ivan Polyakov (Syracuse University (US)), Jibo He (University of Chinese Academy of Sciences (CN))

9 Exotic hadrons at LHCb (20'+5')

Speaker: Sebastian Neubert (Ruprecht Karls Universitaet Heidelberg (DE))

sneubertImpl17.pdf

10 XYZ states from tetraquark perspective (20'+5')

Speaker: Antonio Polosa (Universita' La Sapienza, Roma - Italy)

CERN-LHCB17.pdf

11 Hadron molecules bound by pion exchange (20'+5')

Speaker: Timothy Burns (Swansea University)

talk.pdf

12 Slot for further discussions or buffer for previous overruns

13:00 Lunch break

Mixing and CP violation in Beauty and Charm (session 1)

Conveners: Alex Pearce (CERN), Stefan Schacht (INFN - National Institute for Nuclear Physics), Wenbin Qian (University of Warwick (GB))

13 Unitarity triangle overview (20'+5')

Speaker: Luca Silvestrini (INFN Rome)

silvestrini@LHCbI.pdf

14 CP violation in interference: $\gamma$ measurements using beauty to open charm decays; $\phi_s$ and $\beta$ using beauty to $J/\psi X$ decays (25'+5')

Speaker: Francesca Dordei (CERN)

Implication_Dordei.pdf

15 Penguin pollution in $B$ decays (20'+5')

Speaker: Kristof Antoon M De Bruyn (CERN)

Penguins_KDeBruyn.pdf

15:20 Coffee break

16 Meson mixing theory (20'+5')

Speaker: Alexander Lenz (IPPP, Durham)

Implications2017_Lenz.pdf

17 Slot for further discussions or buffer for previous overruns

Electroweak physics, heavy flavour production, implications for (n)PDFs, and exotica searches (session 1)

Conveners: Emilie Maurice (Université Paris-Saclay (FR)), Martino Borsato (Universidade de Santiago de Compostela (ES)), Rhorry Gauld (IPPP Durham University)

18 Recent results on electroweak boson production at LHCb (20'+5')

Speaker: Lorenzo Sestini (Universita e INFN, Padova (IT))

IW_ew_bosons.pdf

19 Angular coefficients in $Z$ boson production (20'+5')

Speaker: Dr Alexander Huss (ETH Zurich)

huss_implications_2017_v2.pdf

20 Recent results on heavy flavour production at LHCb (20'+5')

Speaker: Michael Andreas Winn (Université Paris-Saclay (FR))

implications_HF_production_v2.pdf

21 Heavy quark production in $pp$, charm/beauty/top (20')

Speaker: Maria Vittoria Garzelli (Hamburg University)

semlhcb.pdf

22 Discussion on heavy flavour cross sections

Speakers: Paolo Nason (Universita & INFN, Milano-Bicocca (IT)), Rhorry Gauld (IPPP Durham University)

Gauld_HVQ_Bsigma.pdf

23 Quarkonia/Heavy flavour in pPb/SMOG (20'+5')

Speaker: Huasheng Shao (Centre National de la Recherche Scientifique (FR))

Shao_LHCbImplication2017.pdf

24 Forward pPb measurements for nPDFs (20'+5')

Speaker: Hannu Paukkunen (University of Jyväskylä)

LHCb_Paukkunen.pdf

25 Slot for further discussions or buffer for previous overruns

19:45 Welcome drink at Restaurant 1

Thursday, 9 November

Semileptonic decays, rare decays, and tests of lepton flavour universality (session 2)

Conveners: Danny van Dyk (University of Zurich (CH)), Marianna Fontana (Universita e INFN, Cagliari (IT)), Stefanie Reichert (Technische Universität Dortmund)

26 Long-distance effects in rare charm decays (20'+5')

Speaker: Oscar Catà (LMU Munich)

LHCb_Cata.pdf

27 Experimental overview on semileptonic decays (20'+5')

Speaker: Antonio Romero Vidal (University of Santiago de Compostela (ES))

SL_Implications_2017_ARV_v1.pdf

28 $B \to D^{(\ast)}$ hadronic form factors within HQE and impact on $R(D)$ and $R(D^\ast)$ predictions (15'+5')

Speaker: Stefan Schacht (INFN - National Institute for Nuclear Physics)

cern-schacht.pdf

29 $B^0_s \to K$ form factors from Light-Cone QCD Sum Rules (20'+5')

Speaker: Aleksey Rusov (Yaroslavl State University)

LHCb-2017_rusov.pdf

30 $B^0_s \to \{D_s, K\}$ form factors from lattice QCD (20'+5')

Speaker: Oliver Witzel (University of Edinburgh)

witzel_oliver.pdf

31 $B \to D^{\ast\ast} l \nu$: signals and backgrounds (20'+5')

Speaker: Zoltan Ligeti (Lawrence Berkeley National Lab. (US))

cern17.pdf

10:55 Coffee break

32 $B_c \to J/\psi$ form factors from lattice QCD (15'+5')

Speaker: Jonna Koponen (Helsinki University)

LHCb_workshop_JonnaKoponen.pdf

33 $\Lambda_b \to \Lambda_c^\ast l\nu$ as a probe of lepton flavour nonuniversality (15'+5')

Speaker: Elena Graverini (Universitaet Zuerich (CH))

graverini_implications.pdf

34 Simultaneous explanations of the $B$ anomalies (20'+5')

Speaker: Admir Greljo (University of Mainz)

greljo-Implications-2017-short.pdf

35 Impact of the $B$ anomalies on $D$ and $K$ decays (20'+5')

Speaker: Svjetlana Fajfer (Univ. of Ljubljana and Inst. J. Stefan)

Fajfer-CERN17.pdf

36 Slot for further discussions or buffer for previous overruns

13:00 Lunch break

Mixing and CP violation in Beauty and Charm (session 2)

Conveners: Alex Pearce (CERN), Stefan Schacht (INFN - National Institute for Nuclear Physics), Wenbin Qian (University of Warwick (GB))

37 CP violation in decay: $B^0 \to K^0_S hh$, $Λ^0_b \to p3h$, $B \to hh$ (25'+5')

Speaker: Daniel Patrick O'Hanlon (University of Warwick (GB))

20171109-Implications.pdf

38 $B \to PP$ decays and LCSR's (20'+5')

Speaker: Martin Jung (TUM IAS / Excellence Cluster Universe)

B2PPLCSR.pdf

39 CP violation in 3-body $B$ decays (20'+5')

Speaker: Dr Keri Vos (Siegen University)

LHCbimpliKKVOS.pdf

40 Charm CP violation: $(\Delta)A_{CP}$ and mixing in two-body $D^0$ decays, mixing and CP violation in $D^0 \to K^0_S\pi\pi$, asymmetries in charm baryon production and decay (20'+5')

Speaker: Jolanta Brodzicka (University of Manchester (GB))

Jolanta_Implications2017.pdf

15:45 Coffee break

41 Charm CP violation theory (20'+5')

Speaker: Ayan Paul (INFN, Sezione di Roma)

LHCbIMP_2017_charm_AP.pdf

42 Slot for further discussions or buffer for previous overruns

QCD spectroscopy and exotic hadrons (session 2)

Conveners: Graham Moir (University of Cambridge), Ivan Polyakov (Syracuse University (US)), Jibo He (University of Chinese Academy of Sciences (CN))

43 Heavy flavour baryons at LHCb (20'+5')

Speaker: Matthew John Charles (LPNHE Paris, CNRS/IN2P3 UPMC and UPD)

2017-11-09-implications-v4.pdf

44 Production of doubly heavy particles at hadron colliders (20'+5')

Speaker: Xing-Gang Wu (Chongqing University)

Xicc_V9.pdf

45 Weak decays of the doubly heavy baryons (20'+5')

Speaker: Wei Wang (Shanghai Jiao Tong University)

WeiWang.pdf

46 bc-hadrons at LHCb (15'+5')

Speaker: Daria Savrina (M.V. Lomonosov Moscow State University (RU))

Implications-bc-hadrons.pdf

47 Heavy hadron spectroscopy and interactions from lattice QCD (20'+5')

Speaker: Madanagopalan Padmanath (Regensburg University)

Padmanath_LHCb_Nov2017.pdf

48 Slot for further discussions or buffer for previous overruns

Friday, 10 November

Electroweak physics, heavy flavour production, implications for (n)PDFs, and exotica searches (session 2)

Conveners: Emilie Maurice (Université Paris-Saclay (FR)), Martino Borsato (Universidade de Santiago de Compostela (ES)), Rhorry Gauld (IPPP Durham University)

49 Flavour tagging of jets, as a probe of heavy quark splitting kernels (20'+5')

Speaker: Philip Ilten (Massachusetts Inst. of Technology (US))

ilten.pdf

50 Recent results on exotica searches at LHCb (20'+5')

Speaker: Carlos Vazquez Sierra (NIKHEF)

Implications_LLP_CVS.pdf

51 Hidden valley searches at LHCb (20'+5')

Speaker: Yue Zhao (University of Michigan)

LHCb_YZ.pdf

52 Extending LHCb's reach for long lived signatures in the Phase-2 upgrade (20'+5')

Speaker: Dean Robinson (UC Berkeley)

codexb_lhcbimpl.pdf

53 Slot for further discussions or buffer for previous overruns

10:20 Coffee break

Keynote session

Convener: Vincenzo Vagnoni (Universita e INFN, Bologna (IT))

54 Model building on flavour anomalies and implications for high-$p_T$ searches (45'+15')

Speaker: Gino Isidori (Zurich University)

Implication17b.pdf

55 Future LHCb upgrades and long-term physics prospects (45'+15')

Speaker: Greig Cowan (University of Edinburgh (GB))

gcowan_implications_2017_v3.pdf

56 Conclusion

Speaker: Vincenzo Vagnoni (CERN and INFN Bologna)

Closing Implications 2017.pdf