[Iac_hadron_2015] Recommendations Hadron

Sat Jan 31 11:29:14 EST 2015

Dear colleagues,

Indeed, the issue is very relevant for heavy flavour decay. I would, however, avoid a logical direction for this session but rather call it: 

"Heavy meson decays and the light meson spectrum“ or something like this..

Cheers
Stephan

Am 30.01.2015 um 12:50 schrieb Alberto Correa dos Reis <alberto at cbpf.br>:

> Dear Mike and colleagues,
> 
>    I am glad to hear that a "light hadron from heavy flavor" session is planned.
> As a matter of fact, I was thinking more of a "heavy flavor from ligth hadron"
> session. In the past, in such a session people from HF community
> presented experimental results on light mesons, with a few theory talks on the
> interpretation of those results.  The emphasis this time would be on theory talks 
> addressing the critical issues one has to face nowadays  in amplitude analysis
> of very large data sets,  with fewer, motivating experimental talks.
> 
> Best regards,
> Alberto.
> 
> 2015-01-29 18:12 GMT-02:00 Michael Pennington <michaelp at jlab.org>:
> Alberto
>           such a parallel session on "light hadron spectroscopy from heavy flavor decays" is  planned,
> with convenors to be announced shortly.
> 
>                                         best wishes   Mike
> 
> ----- Original Message -----
> From: "Alberto Correa dos Reis" <alberto at cbpf.br>
> To: "stephan paul" <stephan.paul at cern.ch>
> Cc: "Eulogio Oset" <Eulogio.Oset at ific.uv.es>, "iac hadron 2015" <iac_hadron_2015 at jlab.org>
> Sent: Thursday, January 29, 2015 2:32:56 PM
> Subject: Re: [Iac_hadron_2015] Recommendations Hadron
> 
> Dear colleagues,
> 
> in the past fifteen years decays of D and B mesons have been playing an
> important role in hadron spectroscopy. While primarily focused on Flavor Physics,
> experiments such as E791, FOCUS, CLEOc, BES, Belle, BaBar, LHCb provided
> many important measurements and discoveries: the sigma, the kappa, and
> other measurements that helped the understanding of the nature of the light
> scalars; the DsJ, the new XYZ hadrons, among other contributions.
> 
> In recognition, in past editions of this conference series we had sessions like
> "Light quark spectroscopy from heavy meson decays". In what concerns the
> spectroscopy of light hadrons, I believe it is time to change the direction of the arrow.
> 
> The ongoing experiments have collected very large samples of heavy meson
> decays. Soon a new generation of experiments will be commissioned. This brings
> us to a precision era in Flavor Physics. However, to fully exploit the potential of this
> large amount of very good data, performing accurate measurements of the CKM
> elements, mixing parameters, CP asymmetries, new Physics searches, the input
> from the hadron community is extremely necessary.
> 
> The theoretical and experimental progress in our understanding of two-body
> systems must be incorporated into the many-body environment of hadronic
> B and D decays, in a systematic and consistent way. A better understanding of
> the connection between quark and hadron degrees of freedom is also in order,
> a necessary ingredient for sound parameterizations of nonresonant amplitudes.
> FSI is a complex subject, involving three- and four-body interactions, but it should
> also be taken into account. The application of fundamental principles and
> symmetries, constraining the decay amplitudes is another issue: in decays of
> B_u mesons into three light hadrons, where CP asymmetries reach up to 80%
> in regions of the phase space, FSI may couple different decay channels, such
> as B+->K+K-K+ and B->K+pi-pi+, in a beautiful realization of the CPT symmetry.
> 
> Before this becomes a manifesto, let me propose a parallel session dedicated
> to these subjects, a session containing both theory and experimental talks. There
> has been some scattered and disconnected initiatives in this direction. I think the
> Hadron conference would be a very appropriate occasion for such discussions.
> 
> With my best regards,
> Alberto.
> 
> 2015-01-29 15:45 GMT-02:00 Stephan Paul < stephan.paul at cern.ch > :
> 
> 
> Dear all
> 
> I wanted to make another suggestion for a talk/speaker. Namely, COMPASS has published (PRL announced to come out next week) the pion polarizability with good precision. In addition, COMPASS had published dynamics of 3pi production at low masses and shown that it fits nicely to a detailed description of this process in 5D phase-space by ChiPT. We expect to also present the same process with 2 neutral pions in the final state, which probes the importance of loop corrections, within 2015. I thus think that an overview talk on ChiPT related experiments (not only COMPASS) would be suitable. One candidate speaker, who has pushed the corresponding COMPASS program and who understands the subject at depth is J. Friedrich (TUM). I am not sure about the status of the present program, but it could be a nice complement for low energy QCD.
> 
> With kind regards
> Stephan
> 
> 
> Am 14.01.2015 um 10:15 schrieb Eulogio Oset < Eulogio.Oset at ific.uv.es >:
> 
> > Dear Mike: I am one of the people to get the email late. So here go some comments.
> > I support the choice
> > SPECTROSCOPY OF MESONS & BARYONS:
> > The Lambda(1405) (Tetsuo HYODO)
> >
> > I would suggest an additional more general talk on hadron hadron interation, paying attention to symmetries, like chiral symmetry, heavy quark spin symmetry, and the appearance of dynamically generated resonances, or molecular hadronic states from this interaction, in a broad spectrum of energies, addressing the light, charm and bottom sectors, X,Y,Z states etc.
> > A person with a broad experience in this topic is Juan Nieves
> > Juan Miguel Nieves Pamplona < Juan.M.Nieves at ific.uv.es >
> >
> > HADRON SURPRISES
> > I support the choice
> > --QCD on the lattice: spectrum, scattering and structure (Christian LANG)
> >
> > In addition it would be interesting a talk on Effective theories in finite volume, since they are proving very useful to interprete QCD lattice results and help determine strategies to obtain optimal information from QCD lattice simulations.
> >
> > People who could talk about that are
> > Akaki Rusetski, Ulf Meissner, or two younger people Michael Doring, or Alberto Martinez
> >
> > Ulf-G. Meissner < meissner at hiskp.uni-bonn.de >
> > Akaki Rusetsky < rusetsky at hiskp.uni-bonn.de >
> > Michael Doering < doring at gwu.edu >
> > Alberto Martinez Torres < amartine at if.usp.br >
> >
> >
> > LHCb is proving to be a factory of surprises with a substantial contribution to hadron spectroscopy and useful reactions telling about the nature of hadronic states.
> >
> > From the experimental side I could recommend two experimentalists who have shown much interest in digging into the meaning and repercussion of the measurements done
> > Sheldon Stone and Tim Gershon.
> > Sheldon Stone < stone at physics.syr.edu >
> > Tim Gershon < T.J.Gershon at warwick.ac.uk >
> >
> > There has been a parallel revival of theoretical work extracting interesting physics from these experiments, in addition to Babar, Belle, Bes and others.
> > I could suggest some young people for that
> > Ju Jun Xie, 谢聚军 < xiejujun at impcas.ac.cn >
> > Wei Hong Liang, liangwh < liangwh at gxnu.edu.cn >
> > Miguel Albaladejo, Miguel Albaladejo Serrano < miguel.albaladejo at ific.uv.es >
> >
> > QCD sum rules are still proving a useful tool to make predictions on hadronic states.
> > Good people for this subject can be
> > Fernando Navarra or Marina Nielsen
> > fernando Silveira Navarra < navarra at if.usp.br >
> > marina Nielsen < mnielsen at if.usp.br >
> >
> > Jefferson Lab has interesting work related to hadron spectroscopy with reactions like the photoproduction of the f2(1279) or the f0(980). The photoproduction of the Lambda(1405) is done by Schumacher and Moriya, although it has been reported in may places already. On the lab issues you can make your own selection.
> >
> > COMPASS and GLUEX will concentrate on three body issues. I think it would be interesting to invite some theoretical person who could report of hadronic three body states, two mesons and a baryon, one meson and two baryons, three mesons...
> > I can suggest two people, Alberto Martinez and Daisuke Jido
> > Alberto Martinez Torres < amartine at if.usp.br >
> > jido >> Daisuke JIDO < jido at tmu.ac.jp >
> >
> > Good luck in the Conference.
> >
> > Eulogio
> >
> > --
> > Eulogio Oset
> > Departamento de Fisica Teorica and IFIC, Universidad de Valencia
> >
> > Postal address:
> > IFIC, Parque Cientifico de la Universidad de Valencia
> > C/ Catedratico Jose Beltran, 2
> > 46980 Paterna (SPAIN)
> > Telephone: +34 96 354 35 25
> > Fax: +34 96 354 34 88
> > email: oset at ific.uv.es
> >
> > _______________________________________________
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> > Iac_hadron_2015 at jlab.org
> > https://mailman.jlab.org/mailman/listinfo/iac_hadron_2015
> 
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> Alberto Corrêa dos Reis
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> Alberto Corrêa dos Reis
> Centro Brasileiro de Pesquisas Físicas - CBPF
> Rua Dr. Xavier Sigaud, 150 - Rio de Janeiro, RJ - Brazil
> 22290-180
> +5521 2141 7378

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