Conveners
Strong Interactions and Hadron Physics: Session I - Premiere
- Laura Fabbietti (Technische Universitaet Muenchen (DE))
- Radja Boughezal (Argonne National Laboratory)
- Sarka Todorova (Charles University (CZ))
Strong Interactions and Hadron Physics: Session II - Premiere
- Antonio Vilela Pereira (Universidade do Estado do Rio de Janeiro (BR))
- Carlos MUNOZ CAMACHO (CNRS)
- Laura Fabbietti (Technische Universitaet Muenchen (DE))
- Sarka Todorova (Charles University (CZ))
Strong Interactions and Hadron Physics: Session III - Premiere
- Carlos MUNOZ CAMACHO (CNRS)
- Laura Fabbietti (Technische Universitaet Muenchen (DE))
- Sarka Todorova (Charles University (CZ))
- Antonio Vilela Pereira (Universidade do Estado do Rio de Janeiro (BR))
Strong Interactions and Hadron Physics: Session IV - Premiere
- Sarka Todorova (Charles University (CZ))
- Antonio Vilela Pereira (Universidade do Estado do Rio de Janeiro (BR))
- Carlos MUNOZ CAMACHO (CNRS)
Strong Interactions and Hadron Physics: Session IV - Replay
- There are no conveners in this block
Strong Interactions and Hadron Physics: Session II - Replay
- There are no conveners in this block
Strong Interactions and Hadron Physics: Session III - Replay
- There are no conveners in this block
Strong Interactions and Hadron Physics: Session I - Replay
- There are no conveners in this block
Transverse momentum dependent (TMD) parton distributions obtained from the Parton Branching (PB) method are combined with next-to-leading-order (NLO) calculations of jet production to obtain predictions for LHC jet final states. In addition, a new initial state Parton Shower, which is based on the TMD distributions, and final state Parton Showers are included together with hadronization. We...
Measurements of jet production are sensitive to the strong coupling constant, high order perturbative calculations and parton distribution functions. In this talk, we present the most recent ATLAS measurements of jet production at 13 TeV. Depending on the availability of the results, we may show measurements of jet and multijet production as well as measurements sensitive to the strong...
Measurements of jet production in proton-proton collisions at the LHC are crucial for precise tests of QCD, improving the understanding of the proton structure and are important tool for searches for physics beyond the standard model. We present recent measurements of double-differential cross section of jet production at centre-of-mass energy of 13 TeV with 2016 data and compare them to...
Measurements of W/Z-boson production in association with jets provide important test of perturbative QCD prediction and also yield information about the parton distribution functions of the proton. In this talk, differential cross-sections for vector-boson production in association with jets using proton-proton collisions collected by the ATLAS experiment are presented. The data are corrected...
The associated production of vector bosons V (W, Z or gamma) and jets originating from heavy-flavour (c or b) quarks is a large background source in measurements of other standard model processes, Higgs boson studies, and many searches for physics beyond the SM. The study of events with a vector boson accompanied by heavy-flavour jets is crucial to refine the theoretical calculations in...
In this contribution, the latest heavy-flavour results on the pp
and p--Pb data samples collected during the LHC Run 2 with ALICE at several center-of-mass energies will be presented.
A comprehensive study of the multiplicity dependent open heavy-flavour hadron production and quarkonium self-normalised yields in pp collisions at $\sqrt{s}$ = 13 TeV will be shown. Such measurements constitute...
NNLO predictions for jet production in Deep Inelastic Scattering have recently become available. These are used to extend the QCD HERAPDF2.0Jets fits, that were made to extract PDFs from inclusive HERA data and HERA jet data, from NLO to NNLO. In addition new jet data sets have become available since the publication of ERAPDF2.0 and these are also considered. A simultaneous fit to these data...
The azimuthal decorrelation angle between the leading jet and scattered lepton in deep inelastic scattering is studied with the ZEUS detector at HERA. The data was taken in the HERA II data-taking period and corresponds to an integrated luminosity of 330 pb${}^{−1}$. Azimuthal angular decorrelation has been proposed to study the
$Q^2$ dependence of the evolution of the transverse momentum...
Precision measurements of the production cross-sections of W/Z boson at LHC provide important tests of perturbative QCD and information about the parton distribution functions for quarks within the proton. In this talk, we present fiducial and differential cross sections for inclusive W+, W− and Z boson production using data collected by the ATLAS experiment at center-of-mass energies of 2.76...
One may use amplitude-based resummation in QED X QCD to achieve IR-improvement of unintegrable singularites in the infrared regime to arbitrary precision in principle. We illustrate such improvement in specific examples in precision LHC/FCC physics.
The LHeC and the FCC-eh are the cleanest, high resolution microscopes that the world can build in the nearer future. Through a combination of neutral and charged currents and heavy quark tagging, they will unfold the parton structure of the proton with full flavour decomposition and unprecedented precision. In this talk we will present the most recent studies on the determination of proton...
We consider the extension of the CMW soft-gluon effective coupling in the context of soft-gluon resummation for QCD hard-scattering observables beyond the next-to-leading logarithmic accuracy. We present two proposals of a soft-gluon effective coupling that extend the CMW coupling to all perturbative orders. Although both effective couplings are well-defined in the physical four-dimensional...
Understanding the internal structure of the proton — that is, how it is built from its fundamental constituents, quarks and gluons — is one of the great challenges of modern high-energy physics. The three-dimensional distribution of quarks and gluons is encoded in terms of the so called generalized parton distributions (GPDs), and the most promising access to these functions is via the...
Proton parton distribution functions (PDFs) are poorly constrained by existing data for Bjorken x larger than 0.6, and the PDFs extracted from global fits differ considerably from each other. A technique for comparing predictions based on different PDF sets to observed event numbers is presented. It is applied to compare predictions from the most commonly used PDFs to published ZEUS data at...
We analyse the high precision HERA $F_2$ data in the low-$x$, $x<0,01$, and very-low-$x$, $x<0.001$, regions using $\lambda$-fits. $\lambda$ is a measure of the rate of rise of $F_2$ defined by $F_2 \propto (1/x)^{\lambda}$. We show that $\lambda$ determined in these two regions, at various $Q^2$ values, is systematically smaller in the very-low-$x$ region as compared to the low-$x$...
We present a new determination of Transverse Momentum Dependent (TMD) parton distributions obtained with the Parton Branching (PB) method at LO, NLO and NNLO. The PB TMDs are extracted from fits to precision DIS data using DGLAP splitting functions at leading and higher order. We extract both the collinear part and the transverse momentum dependent part of the parton densities.
In addition...
In this talk we present fits to determine parton distribution functions (PDFs) using inclusive W/Z-boson and W+jets measurements from the ATLAS experiment at the LHC. The ATLAS measurements are used in combination with deep-inelastic scattering data from HERA. The ATLAS W and Z boson data exhibit sensitivity to the valence quark distributions and the light quark sea composition. The parton...
A phenomenological study of the isolated photon production in high energy pp and pA collisions at RHIC and LHC energies is performed. Using the color dipole approach we investigate the productioncross section differential in the transverse momentum of the photon considering three different phenomenological models for the universal dipole cross section. We also present the...
Elastic scattering is usually described by the $t$-channel exchange of a $C$-even state (the “Pomeron”) that contributes equally to the $pp$ and $p\bar{p}$ cross sections. QCD also predicts the exchange of a sub-dominant $C$-odd state (the “Odderon”) that has opposite sign in the $pp$ and $p\bar{p}$ amplitudes and that QCD describes as a three-gluon state at leading order. At TeV energies...
We discuss the possibility to use the $pp \to pp \phi$ and $pp \to pp \phi \phi$ reactions in identifying the odderon exchange. So far there is no unambiguous experimental evidence for the odderon, the charge conjugation C = -1 counterpart of the C = +1 pomeron, introduced on theoretical grounds in [1]. Last year results of the TOTEM collaboration [2] suggest that the odderon exchange can be...
Exclusive and diffractive physics measurements are important for better understanding of the non-perturbative regime of QCD. Recent results of the CMS and TOTEM experiments are presented in this talk. The total and differential cross sections of central exclusive pi+pi- production are measured at 5.02 and 13 TeV in the pT(pi) > 0.2 GeV and |eta(pi)| < 2.4 kinematic region. The invariant mass...
The electron-ion collider, EIC, has been been identified as the top priority new construction project in the latest NSAC long range plan in the US and is was very favorably reviewed by the National Academy of sciences. Recently, it received critical decision 0 (mission need) status by the DOE and Brookhaven National Lab was chosen as the site to host the EIC. The EIC will collide intense beams...
The large dataset collected during Runs I and II of the LHC has opened new possibilities to study singly heavy b-hadron states and broaden knowledge of their spectroscopy and production. Recent results on searches for new excited b-hadron states, and studies of b-hadron production, will be presented.
We present measurements of absolute branching fractions of the two-body decays of $B$ mesons $B \to K + X_{cc}$, where $X_{cc}$ is a charmonium state, by using a data set corresponding to about 470 fb$^{-1}$ collected by the $BABAR$ detector at the PEP-II $e^+e^-$ collider. For events in which one $B$ is fully reconstructed, the charmonium spectrum can be observed in an unbiased way by...
The latest measurements of excited charm and charm-strange mesons in amplitude analyses of beauty mesons decaying to open charm final states at LHCb are reported. The spectroscopy results include first observations of new excited charm states and precise measurements of their masses, widths and quantum numbers. These results additionally provide tests of the predictions from lattice QCD and HQET.
Starting from the observation of X(3872) in 2003, tens of new structures located in the charmonium energy region above the open-charm threshold have been observed. They carry exotic properties comparing to the conventional charmonium states, and are called as charmonium-like or XYZ states. Utilizing about 17 fb^-1 electron positron collision data samples accumulated at center of mass energies...
Recently, the Belle Collaboration has updated the analysis of the cross sections for the processes $e^+ e^- \to \Upsilon(nS)\, \pi^+ \pi^-$ ($n = 1,\, 2,\, 3$) in the $e^+ e^-$ center-of-mass energy range from 10.52 to 11.02 GeV. A new structure, called here $Y_b (10750)$, with the mass $M (Y_b) = (10752.7 \pm 5.9^{+0.7}_{-1.1})$ MeV and the Breit-Wigner width $\Gamma (Y_b) = (35.5^{+17.6...
A precise understanding of the Equation of State of dense objects like neutron stars is limited by the knowledge about hyperon interactions and the precision of the models describing the latter. Recently, the ALICE Collaboration has demonstrated that two-particle correlation measurements, which are sensitive to the source of particle emission and to the interaction of the particle pair, can...
Electromagnetic form factors serve to explore the intrinsic structure of nucleons and their strangeness partners. With electron scattering at low energies the electromagnetic moments and radii of nucleons can be deduced. The corresponding experiments for hyperons are limited because of their unstable nature. Only for one process this turns to an advantage: the decay of the neutral Sigma...
BESIII collected an e+e- collision data set corresponding to an integrated luminosity of $0.567 fb-1 at a center-of-mass energy of 4.6 GeV. This energy is above the threshold for Lambdac Lambdac- production. This talk reports measurements of the absolute branching fractions of both Cabibbo-favoured and Cabibbo-suppressed hadronic decays. In addition, measurements of semileptonic and inclusive...
We derive the light-front wave function (LFWF)
representation of the $\gamma^* \gamma^* \to \eta_c(1S)\,,\eta_c(2S)$
transition form factor $F(Q_1^2, Q_2^2)$ for two virtual photons
in the initial state. For the LFWF, we use different models
obtained from the solution of the Schr\"odinger equation for
a variety of $c \bar c$ potentials. We compare our results to
the BaBar experimental...
Studies on the production of light- and heavy-flavour baryons are of prominent importance to investigate hadronization mechanisms at the LHC, in particular through the study of the evolution of the baryon-over-meson production ratio as a function of the transverse momentum. Measurements performed in pp and p-Pb collisions at the LHC have revealed unexpected features, qualitatively similar to...
We present and develop a general dispersive framework allowing to construct representations of the amplitudes for the processes Pπ→ππ, P=K,η, valid at the two-loop level in the low-energy expansion. The construction proceeds through a two-step iteration, starting from the tree-level amplitudes and their S and P partial-wave projections. The one-loop amplitudes are obtained for all possible...
While the $\omega$ and $\eta'$ mesons are composed out of the lightest quarks, they are among the heaviest vector and pseudoscalar mesons, respectively, without having net strangeness. As such, they serve as ideal laboratory to test and constrain perturbative quantum chromodynamics in a regime where it is difficult to constrain the fragmentation of the lightest quarks into the different...
The measurement of exclusive $e^+e^-$ to hadrons processes is a significant part of the physics program of $BABAR$ experiment, aimed to improve the calculation of the hadronic contribution to the muon $g−2$ and to study the intermediate dynamics of the processes. We present the most recent results obtained by using the full data set of about 470 fb$^{−1}$ collected by the BABAR detector at the...
Recent measurements in high-multiplicity pp and p-A collisions have revealed that these small collision systems exhibit collective-like behaviour, formerly thought to be achievable only in heavy-ion collisions. To understand the origins of these unexpected phenomena, event shape observables can be exploited, as they serve as a powerful tool to disentangle soft and hard contributions to...
In this paper we determine a new set of transverse momentum dependence of unpolarized fragmentation function (TMD FF) in single inclusive hadron production in electron-positron annihilation (SIA) process. In this analysis, we use the most recent TMD production cross sections of charged pions, kaons and protons/antiprotons measured in inclusive e+e- collisions by Belle Collaboration. These...
In the talk I am going to report on recent results obtained within QCD kt-factorization i.e. formalizm that at high energies accounts for transverse momentum dependence of both parton densities and coefficient functions. In particular I am will present results for complete parton shower description of production of di-jets at LHC. This relies on application of hard matrix elements that depend...
The production of prompt isolated photons at hadron colliders provides stringent tests of perturbative QCD and can be used to evaluate the probability density functions of partons in the proton. In this talk, we present the latest measurements of prompt photon production using proton-proton collision data collected by the ATLAS experiment at √s=13 TeV. This includes the measurement of isolated...
New sets of CMS underlying-event tunes are presented for the PYTHIA 8 with various colour reconnection models, and Herwig 7 event generator. Comparisons of the predictions of the new tunes are provided for observables sensitive to the global underlying event, to soft multiparton interactions, and to double-parton scattering contributions, as well as for observables measured in various final...
We present a model for generating space-time coordinates in the Monte Carlo event generator Herwig 7, and perform colour reconnection by minimizing a boost-invariant distance measure of the system. We compare the model to a series of soft physics observables. We find reasonable agreement with the data, suggesting that pp-collider colour reconnection may be able to be applied in larger systems.
We report the first direct measurement of the dead-cone effect at colliders, using iterative jet declustering techniques in pp collisions at $\sqrt{s}$ = 13 TeV. The iterative declustering is applied to the angular ordered C/A tree of jets associated with D$^{0}$ mesons. Following the D$^{0}$ branch in the splitting history the corresponding Lund plane diagram is constructed, which enables...
It is a common belief that the last missing piece of the Standard Model of particles physics was found with the discovery of the Higgs boson at the Large Hadron Collider. However, there remains a major prediction of quantum tunnelling processes mediated by instanton solutions in the Yang-Mills theory, that is still untested in the Standard Model. The direct experimental observation of...
COMPASS is a multipurpose high energy physics experiment located at the M2 beamline of the SPS at CERN. In 2016 and 2017 COMPASS collaboration performed measurements of lepton-induced hard exclusive reactions using 160 GeV positively and negatively charged muon beams scattering of a liquid hydrogen target. The Deeply Virtual Compton Scattering (DVCS) and Hard Exclusive Meson Production (HEMP)...
The gluon-gluon fusion for $\eta_c$ and $\chi_c$ quarkonium production
is known to be the dominant mechanism [1,2]. In contrast the mechanism of light $f_2(1270)$ tensor meson production is not known. We calculate inclusive cross section for $f_2(1270)$ tensor meson production for gluon-gluon fusion in the $k_t$-factorization approach using different unintegrated gluon distributions from the...
In this talk we present various measurements sensitive to non-perturbative physics performed using data collected by the ATLAS experiment at the LHC. Inclusive single diffractive dissociation (pp->pX) is studied using data collected by the ATLAS forward spectrometer spectrometers, while charged particles from the dissociative system (X) are reconstructed and measured using the ATLAS inner...
We report on the measurement of the Central Exclusive Production of charged particle pairs $h^{+}h^{-}$ ($h = \pi, K, p$) with the STAR detector at RHIC in proton-proton collisions at $\sqrt{s} = 200$ GeV. The charged particle pairs produced in the reaction $pp\to p^\prime+h^{+}h^{-}+p^\prime$ are reconstructed from the tracks in the central detector and identified using the specific energy...
We calculate distributions of different vector mesons in purely exclusive (pp → ppV) and semiexclusive (pp → pXV) processes with the electromagnetic dissociation of a proton. The cross section for exclusive production depends on wave function of the vector mesons and unintegrated gluon distribution function. We show results for rapidity and transverse momentum of vector mesons distributions....
Exclusive photoproduction of $\rho(770)$ mesons is studied using the H1 detector at HERA. The analysis is based on a sample of about 900000 events that were collected in the years 2006-2007. It is used to measure single- and double-differential cross sections for the reaction $\gamma p \to \pi^{+}\pi^{-}Y$. Reactions where the proton stays intact ($M_Y=M_p$) are statistically separated from...
We present a new study of the central exclusive diffractive production of $f_{1}(1285)$ and $f_{1}(1420)$ resonances in proton-proton collisions within the tensor-pomeron approach [1], [2]. Two pomeron-pomeron-$f_{1}$ $(l,S)$ tensorial couplings are possible a priori: (l,S) = (2,2) and (4,4). We adjust the parameters of our model to the WA102 experimental data [3] and compare with predictions...
Measuring lepton angular distributions of Drell-Yan process provides a powerful tool to explore the reaction mechanisms and the parton distributions of colliding hadrons. For example, the Lam-Tung relation has been proposed as a benchmark of the pQCD effect in Drell-Yan process. Violations of Lam-Tung relation were observed in the measurements of fixed-target experiments as well as...
Results on the Drell-Yan differential and inclusive cross section measurements. Forward-Backward asymmetry and Angular Coefficients are also discussed. Both electron and muon channels are covered.
Transverse Momentum Dependent (TMD) parton distributions obtained from the Parton Branching (PB) method are combined with next-to-leading-order (NLO) calculations of Drell-Yan (DY) production. We apply the MC@NLO method for the hard process calculation and matching with the PB TMDs.
We compute predictions for the transverse momentum of Z bosons and Drell-Yan (DY) production. The theoretical...
In 2015 and 2018 the COMPASS experiment at CERN measured muon pair production reactions using 190 GeV π− beam impinging on a transversely polarised NH3 and unpolarised nuclear (Al, W) targets. The main focus was given to the study of the dimuons produced in the Drell-Yan and J/psi production channels. Apart from the absolute cross-section measurements for the both processes, COMPASS studies...
Measurements of the internal properties of jets allow QCD to be studied at a new regime at a hadron collider. In this talk, we discuss recent measurements jet substructure and jet fragmentation that were performed using data collected by the ATLAS experiment at a centre-of-mass energy of √s=13 TeV. This includes a comprehensive suite of substructure observables measured for jets reconstructed...
Results on measurements involving jet substructure and boosted jets at CMS are reviewed here.
First results are presented on the use of a new machine-learning based unfolding technique, OmniFold, applied to archival hadronic e+e- collisions using 730 pb^-1 of data collected at 91 GeV with the ALEPH detector at LEP. With the archived data and unfolding procedure, multiple classic hadronic event-shape variables are measured in a fully unbinned and multi-differential manner. Of particular...
The discovery of pentaquark candidates in Lb -> J/psi p K decays at LHCb has opened a new field in exotic spectroscopy. Analysis of b-baryon decays in the full dataset collected during Run I and II provides opportunities to study the established states with better precision and to search for new pentaquark candidates. The presentation will summarize recent progress in this area.
The large data sample accumulated by the Belle experiment at the KEKB asymmetric-energy $e^{+} e^{-}$ collider provides a unique opportunity to perform studies related to hadron spectroscopy utilising various production mechanisms. We report a search for $X(3872)$ in the two-photon process $e^{+} e^{-}\to e^{\pm} e^{\mp} J/\psi \pi^{+}\pi^{-}$ and a study of $\chi_{c2}(1P)\to J/\psi \gamma$...
The Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substantial
upgrade of the B factory facility at KEK in Tsukuba, Japan. The experiment began full operation in early 2019 and aims to record a factor of 50 times
more data than its predecessor. Belle II is uniquely capable of studying the so-called "XYZ"
particles: heavy exotic hadrons consisting of more than...
Both heavy quarkonium and double heavy hadrons, such as Bc mesons, provide rich material for testing effective theories of the strong interaction via production, decay, and spectroscopy studies. This talk presents recent progress in these areas, based on analyses of the full dataset collected during runs I and II of the LHC.
Structure, interactions and decays of hyperons can be studied at an electron-positron collider in annihilations to a hyperon-antihyperon pair. The well-defined and simple, initial state makes a baryon-antibaryon pair production at an electron-positron collider a perfect system to test discrete symmetries in the baryon sector and to study baryon properties. In particular the 1e10 J/Psi events...
The diffractive electroproduction of the $S$-wave heavy quarkonia (V) is an efficient tool for studies the structure of $V\rightarrow Q\bar Q$ transition. The most of existing studies in the literature are based on the unjustified assumption about a similar structure of both $\gamma^*\to Q\bar Q$ and $V\to Q\bar Q$ vertices, typically adopted in the light-front frame. The photon-like $V\to...
The hypertriton is a bound state of proton, neutron and lambda. Studying it provides insights about the strong interaction between the lambda and ordinary nucleons. In particular, the hypertriton is an extremely loosely bound object, with a lambda separation energy E$_{\Lambda}$ of 150 $\pm$ 8 keV. One way to investigate the hypertriton's internal structure, and thus hyperon-nucleon...
The world’s larges sample of 4.48108 psi(2S) events provides good opportunities for the study of chi_cJ, eta_c, and h_c decays via its radiative transition. Using this data sample, a lot of progress on chi_cJ and h_c decays has been made. New results, including the observation of OZI suppressed decays chi_cJ -> phi omega, measurements of chi_cJ-> phi phi eta, observation of chi_cJ -> 4 Ks...
We study color allowed bottom baryon to $s$-wave and $p$-wave charmed baryon non-leptonic decays. The charmed baryons include spin-1/2 and spin-3/2 states. Explicitly, we consider $\Lambda_b\to \Lambda^{(*,**)}_c M^-$, $\Xi_b\to\Xi_c^{(**)} M^-$ and $\Omega_b\to\Omega^{(*,**)}_c M^-$ decays with $M=\pi, K, \rho, K^*, a_1, D, D_s, D^*, D^*_s$, $\Lambda^{(,*)}_c=\Lambda_c, \Lambda_c(2595),...
We present new results on contributions of the QCD condensates to the two-point and the three-point Green functions of chiral currents, calculated within the means of the operator product expansion (OPE). Further, for the Green functions of the odd-intrinsic parity sector of QCD, we show up-to-date knowledge of behavior of the matching between the calculations performed in the resonance chiral...
Two vector resonances with a mass near 2.2 GeV/$c^2$ are presently known: the $\phi(2170)$ observed in several production processes, but seen to decay only to $\phi(2170)\to\phi(1020)f_0(980)$, and the not well established $\rho(2150)$. Recently the BES-III experiment observed a clear interference pattern in the same energy region in $e^+e^-\to K^+K^-$, interpreted as a resonance with a mass...
For e+e- collision between 2 and 3 GeV, excited states of rho, omega and phi could be produced directly, some of them are not fully studied yet, especially several resonances around 2GeV like rho(2000), rho(2150) and \phi(2170). Theorists explain phi(2170) as a traditional s s-bar state, s s-bar g hybrid, tetraquark state, Lambda Lambda-bar bound state, and phi KK resonance state, and predict...
The current state of knowledge of the order parameters, the quark condensate and the pseudoscalar decay constant in the chiral limit, will be reviewed, based on available phenomenological fits and lattice QCD calculations. It will be argued that while the theory is pretty well understood in the two flavour case, there is still a gap in the knowledge of the characteristics of the QCD vacuum in...
Due to the high production rate of light mesons in J/psi decays, the hight statistics sample of 1.3 billion Jpsi events provide an ideal lab to investigate the decay dynamics of light mesons, in particular for eta and etaprime. Recently the BESIII experiment made significant progresses in eta and prime decays, including their hadronic and rare decays, which will be reported in this talk
Recent result on $e^+e^-$ annihilation to hadrons below 2 GeV obtained at the
SND experiment at the VEPP-2000 collider are presented. In particular,
we discuss measurements of the $e^+e^-\to\pi^+\pi^-$, $e^+e^-\to n\bar{n}$,
$e^+e^-\to \eta\pi^0\gamma$ cross sections, and a search for the rare process
$e^+e^-\to f_1(1285)$.
The KLOE-2 data-taking at the e+e- DAPHNE collider in Frascati has been completed by achieving an integrated luminosity of more than 5 fb-1 at the phi peak. KLOE-2 is an updated version of KLOE experiment with new detectors and an extended physics program, including light mesons investigations at unprecedented statistics. The KLOE/KLOE-2 data sample corresponds to more than 3x10^8 eta meson...
Based on the large samples of Jpsi and Psi(2S) events accumulated at the BESIII detector, the recent results on baryon spectroscopy will be presented. Most recently, the 10 billion J/psi events is available at BESIII experiment, the perspectives on the baryon spectroscopy at BESIII will also be discussed
We report new measurements of the production cross sections of pairs of charged pions and kaons as a function of their fractional energies. With an aim at either identifying dihadron cross sections in terms of single-hadron fragmentation functions, or providing a means to characterise the transverse momentum created in the fragmentation process, two different fractional-energy definitions are...
Studies of the production of light-flavour hadrons in different collision systems are of prominent importance to investigate the hadronisation process. In the recent past, the ALICE Collaboration has presented results from pp, p-A and A-A collisions, exploiting its detector's excellent tracking and PID capabilities down to low transverse momentum. Pions, kaons, protons and (multi-)strange...
