### Conveners

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Volker Burkert (Jefferson Lab)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Barbara Pasquini (University of Pavia)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Enrico Tassi (Dipartimento di Fisica-Univ. degli Studi della Calabria)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Enrico Tassi (Dipartimento di Fisica-Univ. degli Studi della Calabria)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Enrico Tassi (Dipartimento di Fisica-Univ. degli Studi della Calabria)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Barbara Pasquini (University of Pavia)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Volker Burkert (Jefferson Lab)

#### 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

- Volker Burkert (Jefferson Lab)

Dr
Michel Guidal
(CNRS/IPN Orsay)

7/22/10, 9:00 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Generalized Parton Distributions (GPDs) allow to describe the structure of the nucleon in a very rich and unprecedented way: they contain the correlations between the (transverse) position and (longitudinal) momentum distributions of the partons in the nucleon, they allow to derive the orbital momentum contribution of partons to the nucleon's spin, they provide an access to the nucleon's...

Samuel Wallon
(LPT, Université Paris-Sud, CNRS, Orsay and UPMC Univ. Paris 06)

7/22/10, 9:20 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The chiral-odd transversity generalized parton distributions of the nucleon can be accessed experimentally through the exclusive photoproduction process gamma + N -> pi + rho + N', in the kinematics where the meson pair has a large invariant mass and the final nucleon has a small transverse momentum, provided the vector meson is produced in a transversally polarized state. Estimated counting...

Lech Szymanowski
(Soltan INS, Warsaw)

7/22/10, 9:30 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We describe a new way to access the chiral odd transversity parton distribution in the proton through the photoproduction of lepton pairs. The basic ingredient is the interference of the usual Bethe Heitler or Drell-Yan amplitudes with the amplitude of a process, where the photon couples to quarks through its chiral-odd distribution amplitude, which is normalized to the magnetic susceptibility...

Dr
Valery The CLAS Collaboration
(Jefferson Lab)

7/22/10, 9:40 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Deeply Virtual Exclusive Reactions with CLAS
Deeply virtual exclusive reactions offer an unique opportunity to study the structure of the nucleon at the parton level as one varies both the size of the probe, i.e. the photon virtuality Q^2, and the momentum transfer to the nucleon t. Such processes can reveal much more information about the structure of the nucleon than either inclusive...

Dr
Igor Anikin
(Joint Inst. for Nuclear Research)

7/22/10, 10:00 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We study a deeply virtual Compton scattering off a spin-one particle, as the case for coherent scattering on a deuteron target. We discuss the role of twist three contributions for restoring the gauge invariance of the amplitude corresponding to this process. We consider both kinematical and dynamical sources of twist three generalized parton distributions. The role of the QCD equations of...

Prof.
Chaden Djalali
(University of South Carolina)

7/22/10, 10:15 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The theory of the strong interaction, Quantum Chromodynamics (QCD), has been remarkably successful in describing high-energy and short-distance-scale experiments involving quarks and gluons. However, applying QCD to low energy and large-distance scale experiments has been a major challenge. Chiral symmetry is one of the most fundamental symmetries in QCD and provides guiding principles to deal...

Dr
Jean-Philippe Lansberg
(Ecole polytechnique)

7/22/10, 11:00 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We discuss the potentialities offered by the study of backward exclusive processes in the scaling regime, i.e. involving a large Q2 photon and a baryonic exchange in the t-channel. We introduce the concept of Transition Distribution Amplitudes (TDAs) containing unique information on the hadron structure, then discuss how they enter the description of processes such as backward...

Alexei Prokudin
(University of Turin)

7/22/10, 11:15 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The structure of the proton is described from the point of view of transverse momentum dependent distributions of partons. Complete set of functions describing the structure of the proton at leading twist is defined. TMDs can be studied experimentally in polarised inclusive processes such as Semi Inclusive Deep Inelastic Scattering.Factorization of Semi Inclusive Deep Inelastic Scattering and...

Francesco Hautmann
(Institute of Theoretical Physics)

7/22/10, 11:35 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

This talk gives an introduction to transverse momentum dependent (unintegrated) parton distributions and presents the results of a recent study of quark splitting functions defined at fixed longitudinal and transverse momenta. We discuss the treatment of endpoint divergences, emphasizing the physical picture that underlies the need for infrared subtraction factors in the operator matrix...

Prof.
Klaus The HERMES Collaboration
(University of Erlangen)

7/22/10, 11:50 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Recent Results on Deeply Virtual Compton Scattering at HERMES
Deeply Virtual Compton Scattering is an elegant tool to investigate the angular momenta of partons inside the nucleon. Using longitudinally polarized electron and positron beams, HERMES has studied this process using various gaseous targets, in either unpolarized or longitudinal as well as transverse polarization states. This...

Dr
Fabienne The COMPASS Collaboration
(CEA Saclay)

7/22/10, 12:10 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Recent results on the nucleon spin structure from COMPASS
COMPASS is a multi-purpose fixed target experiment at the CERN Super Proton Synchrotron, dedicated to the study of the spin and the structure of the nucleon. From 2002 to 2011, high statistics data for polarized inclusive and semi-inclusive deep inelastic scattering were collected using 160 GeV/c polarized muons on polarized deuteron...

Dmitri Nikolenko
(Budker Institute for Nuclear Physics)

7/22/10, 2:00 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We report the experiment on a precise comparison of (e+ p) and (e- p) scattering cross sections, which gives a direct experimental evidence for the two-photon exchange (TPE) contribution in this reaction. Such data are in demand now, because they, most likely, may explain the dramatic disagreement of proton electromagnetic form factors measurements in the polarization transfer (PT) experiments...

Prof.
Stefano Forte
(Milan University)

7/22/10, 2:15 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

I review the current status of knowledge of the parton distributions (PDF) of the nucleon, with particular emphasis on recent progress on the determination of PDF uncertainties and on theoretical and phenomneological issues which limit the current PDF accuracy. I then discuss the implications of PDF uncertainties on LHC processes, with specific references to standard candles and Higgs production.

Dr
Pedro Jimenez-Delgado
(University of Zürich)

7/22/10, 2:35 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Utilizing recent DIS measurements (σ_r, F_{2,3,L}) and data on hadronic dilepton production we determine at NNLO (3-loop) of QCD the dynamical parton distributions of the nucleon generated radiatively from valence-like positive input distributions at an optimally chosen low resolution scale (Q_0^2 < 1 GeV^2) by employing the ``fixed flavor number factorization scheme'' (FFNS). These are...

Dr
Ronan McNulty
(UNIVERSITY COLLEGE DUBLIN)

7/22/10, 3:05 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We summarise the results from early LHCb data for muon final states produced through the Drell-Yan process via W, Z and gamma* down to a Q2 of 10 GeV2. Extrapolating these results up to the sample sizes expected in the remainder of the 2010 run gives exciting prospects for parton density function studies, which will benefit from LHCb’s unique ability to trigger on low momentum objects. Due to...

Dr
Hannu Paukkunen
(University of Santiago de Compostela)

7/22/10, 3:20 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We study the nuclear effects in the neutrino\antineutrino-nucleon deep inelastic scattering (DIS) by comapring the NuTeV, CDHSW, and CHORUS cross-sections from Iron and Lead targets to the predictions derived from the latest parton distribution functions (PDFs). The nuclear modifications found seem to display agreement with those in charged lepton DIS. Our study thus lends support to the...

Massimo Corradi
(INFN, Sezione di Bologna)

7/22/10, 3:35 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Combination of F2^cc from DIS measurements at HERA
The charm contribution F2^cc to the proton structure function F2 is determined. The results of D meson production cross section measurements are combined with the measurements using semi-leptonic decays into muons as well as inclusive track measurements. The correlations of the systematic uncertainties between different measurements are taken...

Voica Ana Maria Radescu
(Deutsches Elektronen Synchrotron (DESY))

7/22/10, 4:15 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Combined Measurement of Neutral and Charged Current Cross Sections at HERA
A combination is presented of the inclusive cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current deep-inelastic ep scattering at HERA. The combination uses data from unpolarised ep scattering taken during the HERA-I phase as well as measurements with longitudinally polarised electron...

Dr
Paul Thompson
(University of Birmingham)

7/22/10, 4:35 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Measurement of the Charm and Beauty Structure Functions using the H1 Vertex Detector at HERA
Inclusive charm and beauty cross sections are measured in e^- p and e^+p neutral current collisions at HERA in the kinematic region of photon virtuality 5 < Q^2 < 2000 GeV^2 and Bjorken scaling variable 0.0002 < x < 0.05. The data were collected with the H1 detector in the years 2006 and 2007...

Markus Juengst
(Universitaet Bonn)

7/22/10, 4:55 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Measurement of the photoproduction of b-quarks at threshold at HERA
The cross section of bb_bar photoproduction in ep collisions is measured with the H1 detector at HERA. Events containing b-quarks are identified through detection of two low momentum electrons in the final state. Semileptonic decays bb_bar -> ee X are exploited in the kinematic range of the photon virtuality Q^2 < 1 GeV^2,...

Andreas Werner Jung
(DESY)

7/22/10, 5:15 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Measurement of the D* Meson Production Cross Section and F_2^ccbar, at High Q^2, in ep Scattering at HERA
The inclusive production of D*(2010) mesons in deep-inelastic ep scattering is measured in the kinematic region of photon virtuality 100 < Q^2 < 1000 GeV^2 and inelasticity 0.02 < y < 0.7. Single and double differential cross sections for inclusive D* meson production are measured in the...

Philipp Roloff
(DESY)

7/22/10, 5:30 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Measurement of D+- and D0 Production in Deep Inelastic Scattering Using a Lifetime Tag at HERA
The production of D+- and D0 mesons has been measured with the ZEUS detector at HERA using an integrated luminosity of 133.6 pb-1. The measurements cover the kinematic range 5 < Q2 < 1000 GeV2, 0.02 < y < 0.7, 1.5 < pT(D) < 15 GeV and |eta(D)| < 1.6. Combinatorial background to the D meson signals...

Dr
Magno Machado
(Universidade Federal do Rio Grande do Sul)

7/22/10, 5:45 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The exclusive processes in electron-proton (ep) interactions are an important tool to investigate the QCD dynamics at high energies as they are in general driven by the gluon content of proton which is strongly subject to parton saturation effects. In this paper we compute the cross sections for the exclusive vector meson production as well as the deeply virtual Compton scattering (DVCS)...

Daniel Traynor
(Queen Mary, Univ. of London)

7/23/10, 9:00 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Transverse Momentum of Charged Particles at low Q^2 at HERA
The electron-proton collider HERA allows deep-inelastic scattering (DIS) at very small Bjorken-x of about 10^-5. At such small x new parton dynamics beyond DGLAP are expected to become important. Charged particle spectra are measured in DIS (Q^2 > 5 GeV^2), in different regions of pseudorapidity, using the increased statistics of...

Leszek Zawiejski
(Institute of Nuclear Physics PAN)

7/23/10, 9:15 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Inclusive Photoproduction of rho^0, K^{*0} and phi Mesons at HERA
Inclusive non-diffractive photoproduction of rho(770)^0, K^*(892)^0 and phi(1020) mesons is investigated with the H1 detector in ep collisions at HERA. The corresponding average gamma p centre-of-mass energy is 210 GeV. The mesons are measured in the transverse momentum range 0.5 < p_T < 7 GeV and the rapidity range...

Olaf Behnke
(DESY)

7/23/10, 9:30 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Study of Charm Fragmentation into D^{*+-} Mesons in Deep-Inelastic Scattering at HERA
The process of charm quark fragmentation is studied using D^{*+-} meson production in deep-inelastic scattering as measured by the H1 detector at HERA. Two different regions of phase space are investigated defined by the presence or absence of a jet containing the D^{*+-} meson in the event. The parameters...

Chris Blanks
(Imperial College)

7/23/10, 9:45 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Prompt K0_s production in pp collisions at the LHCb experiment
The inclusive production of prompt K0_s mesons, which are either produced directly in the fragmentation process or in the decay chain of prompt resonances decaying strongly or electromagnetically, has been studied with the very first data collected in pp collisions at sqrt(s) = 0.9 TeV using the LHCb detector in December 2009....

Prof.
Bernd The STAR Collaboration
(MIT)

7/23/10, 10:00 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The RHIC spin physics program has in 2009 completed the first data taking period of polarized p+p collisions at sqrt{s}=500 GeV. This opens a new era in the study of the spin-flavor structure of the proton based on the production of W^-(+) bosons. W^-(+) bosons are produced in ubar+d,(dbar+u) collisions and can be detected through their leptonic decays, e^- + νbar_e;(e^+ +ν_e), where only the...

Dr
John The PHENIX Collaboration
(Brookhaven National Laboratory)

7/23/10, 10:15 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Electrons from W^± decays have been observed in longitudinally polarized p+p collisions at sqrt{s} = 500 GeV in the PHENIX detector at RHIC. The electron energy spectrum from W decays measured with an integrated luminosity of approximately 10 pb^-1 will be shown. A measurement of the electron single spin asymmetry which measures the spin structure of flavor identified quarks and antiquarks in...

Prof.
Ted Barnes
(ORNL)

7/23/10, 11:00 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

In this introductory overview I will discuss recent developments in hadron spectroscopy that are of particular relevance to this meeting, including the spectroscopy of heavy quark hadrons, exotic and multiquark systems, and new theoretical results such as developments in LQCD.

Paolo Gauzzi
(Universita di Roma I "La Sapienza")

7/23/10, 11:20 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

KLOE results on light meson spectroscopy
The KLOE experiment has collected 2.5 fb-1 at the peak of the phi resonance at the e+e- collider DAPHNE in Frascati. The whole data set includes 100 million eta's produced through the radiative decay phi --> eta gamma and tagged by means of the monochromatic recoil photon. With this sample, we are studying eta rare decays. We have a final result for...

Vladimir Kekelidze
(Joint Institute for Nuclear Research (JINR))

7/23/10, 11:40 AM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

Precision Measurement of pi pi Scattering Lengths in Ke4 Decays at NA48
The measurement of the S-wave pi pi scattering lengths is a fundamental test of the validity of Chiral Perturbation Theory. We report on the final NA48/2 result, which uses the complete NA48/2 data set with more than a million reconstructed Ke4 decays. From these events we have determined the decay form factors and pi pi...

Frank Nerling
(Fakultaet fuer Physik)

7/23/10, 12:00 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The COMPASS experiment focused its physics program on hadron spectroscopy in the last two years. As a fixed target experiment at the CERN SPS accelerator, COMPASS features large acceptance and high momentum resolution and thus qualifies well for studies of diffractive dissociation and central production. Hadron formation with both 190 GeV pi-/K- amd 190 GeV p/pi+ beams on liquid hydrogen,...

Prof.
Cai-Dian Lu
(IHEP,Beijing)

7/23/10, 12:15 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

It is a difficult task to probe internal structures of the scalar mesons below or near 1GeV. In the SU(3) symmetry limit, the semileptonic D^+ --> Sl^+ nu and B^+ Slnubar decays, with S=a_0, f_0 and sigma, are found to obey very different sum rules in the two scenarios for scalar mesons. Thus it can uniquely distinguish the qqbar and the tentraquark descriptions for light scalar mesons...

Dr
Beijiang Liu
(Institute of High Energy Phsics (CAS) and Hong Kong University)

7/23/10, 2:00 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

There has been much arguments on whether sigma and kappa exist, due to the facts that the total phase shifts in the lower mass region are much less than 180 degrees and they do not fit into ordinary meson nonets; also whether f0(980) and a0(980) are part of the ground-state quark-antiquark family or whether they are 4-quark states, hybrids or K Kbar molecules. The study of their nature has...

huang yanping
(IHEP)

7/23/10, 2:10 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The decays of psi'-> pi pi J/psi (J/psi -> gamma p pbar), psi'-> gamma ppbar, J/psi-> gamma p pbar, J/psi -> gamma pi pi eta’ and J/psi -> omega pi pi eta are analyzed using the samples of 2.26 X 10^8 J/psi events and 1.06 X 10^8 psi' events collected with the BESIII detector. In psi'-> pi pi J/psi (J/psi -> gamma p pbar) decay, an enhancement at p pbar threshold is observed. The enhancement...

Evgeniy Solodov
(BudkerINP)

7/23/10, 2:25 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Initial State Radiation Physics Studies at BABAR
We present recent results obtained at BABAR from low energy e+e- annihilations, produced via initial state radiation. Low energy hadronic cross sections provide essential experimental input for calculating hadronic corrections to the muon anomalous magnetic moment, while studies of final states and intermediate structures with unprecedented...

Vladimir Druzhinin
(SLAC)

7/23/10, 2:40 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Recent results on two-photon physics at BABAR
Two-photon processes, studied at e+e- colliders via the reaction e+ e---> e+ e- gamma gamma* --> e+ e- Pseudoscalar, provide an approach to a number of important QCD tests. We discuss the recent BABAR measurements of gamma gamma* -> pi0 transition and gamma gamma*-> eta_c transition form factors. We also report on a new measurement of the gamma...

Oleg Teryaev
(Joint Inst. for Nuclear Research (JINR))

7/23/10, 2:55 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

The earlier derived sum rule for the axial current formfactors with one real and one virtual photon is applied for the analysis of meson transition formfactors. The exactness of sum rule at all virtual photon momenta due to t'Hooft principle requires the existence of at least one axial meson which assumes the role of pion in the anomaly description at large momenta squared. The relation...

Hideyuki Nakazawa
(National Central University)

7/23/10, 3:05 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Experimental study of eta eta production in two-photon collisions
The differential cross section for the process gamma gamma -> eta eta has been measured in the kinematic range above the eta eta threshold, 1.096 GeV < W < 3.8 GeV, in almost the whole solid angle, |cos theta*| < 0.9 or < 1.0 depending on W, where W and theta* are the energy and eta scattering angle, respectively, in the...

Ahmed Ali
(DESY)

7/23/10, 3:20 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We study the spectroscopy and dominant decays of the bottomonium-like tetraquarks (bound diquarks-antidiquarks), focusing on the lowest lying P-wave [bq][bbar qbar] states Y_[bq] (with q=u,d), having J^PC=1^--. To search for them, we analyse the recent BaBar data obtained during an energy scan of the e+ e- -> b bbar cross section in the range of sqrt(s)=10.54 to 11.20 GeV. We find that these...

Pablo G Ortega
(University of Salamanca)

7/23/10, 3:35 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

In the last years, a number of exciting discoveries of new hadron states have challenged our description of the hadron spectroscopy. Among these so called XYZ states, one of the most mysterious states is the well established X(3872).
In Ref.[1] we performed a coupled channel calculation of the 1^++ ccbar sector including qqbar and DD* molecular configurations; in the framework of a...

Arafat Gabareen Mokhtar
(SLAC / Stanford University)

7/23/10, 4:15 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* A study of radiative Upsilon(2S) and Upsilon(3S) transitions using converted photons
We present a study of the radiative transitions from decays of the Upsilon(2S) and Upsilon(3S) resonances using photons that have converted into an e+e- pair. This study uses data collected with the BABAR detector operating at the SLAC PEP-II B-factory on the Upsilon(2S) and Upsilon(3S) resonances.
*...

Jose Benitez
(SLAC)

7/23/10, 4:30 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Study of the inclusive production of the D pi and D* pi final states
We present a study of the mass spectra of the D+pi-, D*+pi-, and D0pi+ final states in search for unobserved excited states of the D mesons. We use a dataset corresponding to ~454 fb^-1 of e+e- collisions collected by the BABAR detector at center-of-mass energies near 10.58 GeV. The final states are reconstructed...

Ian Watson
(University of Sydney)

7/23/10, 4:45 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Search for 1P -> 1S radiative transitions of D mesons
We present a search for B- -> pi- D^**0, D^**0 -> gamma D0 with a data sample from the Belle detector at the KEKB e+e- collider containing 771 x 10^6 BBbar pairs. In preliminary studies, we found that the corresponding pionic decays, D^**0 -> pi0 D0 are important backgrounds. These modes have not previously been studied; we measure them...

Mauro Verzetti
(INFN Torino)

7/23/10, 5:05 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Measurement of Upsilon(5S) decays to B0 and B+ mesons
Decays of the Upsilon(5S) resonance to channels with B+ and B0
mesons are studied using a 23.6 fb^-1 data sample collected with
the Belle detector at the KEKB asymmetric-energy e+e- collider.
Fully reconstructed B+ -> J/psi K+, B0 -> J/psi K*0, B+ -> Dbar0 pi+ and B0 -> D- pi+ decays are used to obtain the charged and neutral...

Kai Yi
(Physics and Astronomy Department-University of Iowa)

7/23/10, 5:25 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

* Updated studies of exotic J/psi phi structures at CDF
We report updated studies of the J/psi phi mass spectrum in exclusive B+ --> J/psi phi K+ decays collected by the CDF experiment. Using an increased data sample of 5 fb^-1 and by adding new triggers we establish observation of the Y(4140) state in its J/Psi Phi decay and provide more precise measurements of its properties.
* Search...

Felix Wick
(Karlsruhe)

7/23/10, 5:40 PM

04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

Parallel Session Talk

We present a study of the first orbital excitations of the Lambda_c baryon, the resonances Lambda_c(2595) and Lambda_c(2625), in the decay channel Lambda_c+ pi+ pi- as well as the Lambda_c spin excitations Sigma_c(2455) and Sigma_c(2520) in its decays to Lambda_c+ pi- and Lambda_c+ pi+ reconstructed in a sample corresponding to 5.3 fb^-1 of data collected by the CDF experiment. Exploiting the...