-
Chris Parkes (University of Manchester (GB) & CERN)6/6/22, 9:00 AM
LHCb results
Go to contribution page -
82. Rare decays at LHCb, including tests of lepton flavour universality and lepton flavour violationMarcin Chrzaszcz (Polish Academy of Sciences)6/6/22, 9:30 AM
Flavour-Changing Neutral-Current processes, such as decays mediated by b->sll transitions, are forbidden at the lowest perturbative order in the Standard Model (SM) and hence might receive comparatively large corrections from new particles in SM extensions. This talk highlights recent measurements from LHCb on b->sll transitions, including tests of lepton flavour universality and lepton...
Go to contribution page -
Varvara Batozskaya6/6/22, 10:00 AM
The hyperons are produced with a non-zero spin polarization that is straight-forward to parameterize in processes involving virtual photons or vector mesons, enable direct and precise CP violation tests.
Go to contribution page
These CP tests can be performed on e.g. J/psi -> Lambda Lambdabar, J/psi-> Sigma Sigmabar, J/psi -> Xi Xibar and psi(2S) -> Omega Omegabar. For the Xi -> Lambda pi decay the exclusive... -
Edward Shields6/6/22, 10:55 AM
LHCb has collected the world's largest sample of charmed hadrons. This sample is used to measure $D^0 -\overline{D}^0$ mixing and to search for $C\!P$ violation in mixing and interference. New measurements from several decay modes are presented, as well as prospects for future sensitivities.e sensitivities.
Go to contribution page -
Artur Ukleja (EP/ULB Company)6/6/22, 11:20 AM
LHCb has collected the world's largest sample of charmed hadrons. This sample is used to measure direct $C\!P$ violation in $D$ mesons. New measurements from several decay modes are presented, as well as prospects for future sensitivities
Go to contribution page -
Wojciech Krupa (AGH University of Science and Technology)6/6/22, 11:45 AM
The latest studies of beauty-meson decay to open-charm final states from LHCb. It includes recent studies of CKM angle gamma and CPV parameters in the beauty sector, especially the recent measurement of direct CPV in B+ decays. Measurements from several decay modes are presented.
Go to contribution page -
6/6/22, 1:30 PM
Semileptonic decays of $B$ mesons involving the high-mass $\tau$ lepton are sensitive probes for physics beyond the Standard Model. The relative rates of branching fractions $R(D) = \mathcal{B}(B \to D \tau \nu) / \mathcal{B}(B \to D l \nu)$ and $R(D^*) = \mathcal{B}(B \to D^* \tau \nu) / \mathcal{B}(B \to D^* l \nu)$ $(l=e,\mu)$ are independent of the CKM element $|V_{cb}|$ and of other...
Go to contribution page -
Daniel Dorner (HEPHY Vienna)6/6/22, 1:55 PM
Decays of B mesons that proceed through electroweak and radiative penguin amplitudes attract significant attention due to a number of observed discrepancies between the standard-model predictions and the results. Belle II is expected to perform measurements on channels closely related to those exhibiting anomalies and that are uniquely available to Belle II. We present recent results on...
Go to contribution page -
Marko Staric (J. Stefan Institute, Ljubljana, Slovenia)6/6/22, 2:20 PM
Outstanding vertexing performance and low-background environment are key enablers of a systematic Belle II program targeted at measurements of charm hadron lifetimes Recent results from measurements of D0 meson, D+ meson and Λc baryon lifetimes are presented. The results are the most precise to date.
Go to contribution page -
Alina Kleimenova (Comenius University, Bratislava)6/6/22, 3:15 PM
The NA62 experiment at CERN collected world's largest dataset of charged kaon decays in 2016-2018, leading to the observation of the ultra-rare K+ --> pi+ nu nu decay based on 20 candidates.
Go to contribution page
Dedicated trigger lines were employed for collection of di-lepton final states, which allowed establishing stringent upper limits on the rates lepton flavor and lepton number violating kaon decays. The... -
Sebastiano Raiz (BELLE (BELLE II Experiment))6/6/22, 3:40 PM
he investigation of B-meson decays to charmed and charmless hadronic final states is a keystone of the Belle II physics program. It allows for theoretically reliable and experimentally precise constraints on the CKM Unitarity Triangle fit, and is sensitive to effects from non-SM physics. Results on branching ratios, direct CP-violating asymmetries, and polarization of various charmless B...
Go to contribution page -
Paweł Moskal6/7/22, 9:00 AM
The Jagiellonian Positron Emission Tomograph (J-PET) is the first PET scanner based on plastic scintillators.
It is designed to measure momentum vectors and the polarisation of photons originating from the decays of positronium.
In combination with the newly invented positronium imaging method, J-PET enables the study of discrete symmetries
Go to contribution page
in positronium without the use of magnetic... -
Nickolas Solomey (Wichita State University)6/7/22, 9:30 AM
The question of what type of new physics could be done if a neutrino detector was able to operate close to the Sun was initially raised in 2015. This idea at the time was completely unexplored but innovative. Since asking this question we have determined how such a detector might be operated in space with little shielding and have explored scientific outcomes: better understanding of the solar...
Go to contribution page -
Adam Barton6/7/22, 9:55 AM
The ATLAS experiment has performed measurements of $B$-meson rare decays proceeding via suppressed electroweak flavour changing neutral currents, and of mixing and CP violation in the neutral $B^{0}_{s}$ meson system. This talk will focus on the latest results from the ATLAS collaboration, such as rare processes $B^{0}_{s}\rightarrow\mu\mu$ and $B^{0}_{d}\rightarrow\mu\mu$ and CP violation in...
Go to contribution page -
SUSHIL SHARMA (Jagiellonian University)6/7/22, 10:50 AM
The J- PET tomograph, which consists of inexpensive plastic scintillators, has also demonstrated its
Go to contribution page
potential in the study of fundamental symmetries [1,2]. It consists of 192 plastic scintillators arranged
in 3 layers optimized for the registration of multiple annihilation photons emitted in the decays of
ortho-positronium atoms (o-Ps) [3], a triplet state of a purely charged leptonic... -
Gemma Tinti6/7/22, 11:15 AM
The decay K+→π+ νν ̅, with a very precisely predicted branching ratio of less than 10-10, is among
Go to contribution page
the best processes to reveal indirect effects of new physics.
The NA62 experiment reports the branching ratio measurement BR(K+→π+νν¯) =
(10.6+4.0−3.4|stat ± 0.9syst) × 10−11 at 68% CL, based on the observation of 20 signal candidates
with an expected background of 7.0 events from the total... -
Prof. Szczurek Antoni (INP PAS)6/7/22, 11:40 AM
-
Nora Salone (National Centre for Nuclear Research)6/7/22, 1:10 PM
A comparison of the hyperon and antihyperon decay parameters allows for tests of direct CP-symmetry violation complementary to the \epsilon'/\epsilon measurements in kaon decays. Importance of the new BESIII result on e+e- ->J/psi->Xi- bar-Xi+, where the final state interaction and weak phase difference are disentangled, is discussed. We show how future measurements at Super Charm-Tau...
Go to contribution page -
Chris Parkinson6/7/22, 1:35 PM
The NA62 experiment at CERN took data in 2016--2018 with the main goal of measuring the K+ -> pi+ nu nubar decay. The high-intensity fixed-target setup and the detector performance make the NA62 experiment particularly suited to investigate the Standard Model structure and its possible extensions with
Go to contribution page
precision measurements of charged kaon decays.
Results from studies of the radiative kaon... -
Martin Sykora (Prague CU)6/7/22, 2:40 PM
The large amount of Heavy Flavour data collected by the ATLAS experiment is potentially sensitive to New Physics, which could be evident in processes that are
Go to contribution page
naturally suppressed in the Standard Model. The result of the angular distribution parameters describing the decay $B_d^0 \to K^{*0}\mu^+\mu^- \to K^+\pi^-\mu^+\mu^-$ based on full Run-1 data is presented. -
Wojciech Krupa (AGH University of Science and Technology), Mr Sowa Karol (AGH UST Krakow)6/7/22, 3:00 PM
Nowadays, simulated data, are commonly used in modern high-energy physics experiments. They are used not only for determining certain performance but also in training machine learning algorithms. Generating data, especially rare heavy meson decays, requires enormous computational resources. To simplify this process, we propose a new method to replicate simulated data using existing samples....
Go to contribution page -
Pawel Kopciewicz (AGH), Mr Michał Kacprzak6/7/22, 3:20 PM
The poster gives an overview of possible new methods in statistical estimation, an alternative to maximum likelihood methods and originating from computational intelligence. Recent advances in the machine learning field, such as Generative Adversarial Networks (GAN), are mentioned, along with their potential role in mass spectrum modeling.
Go to contribution page -
Prof. Adam Bzdak (AGH-UST Kraków)6/8/22, 9:00 AM
QCD introductory talk
Go to contribution page -
Iakov Aizenberg (Weizmann Institute of Science)6/8/22, 9:30 AM
This talk presents a new measurement studying the relationship between the production of hard and soft particles through the correlation of Upsilon meson states with the inclusive-charged particle yields in 13 TeV pp collisions. Measurements are made differentially for Upsilon momentum and for different Upsilon states. The analysis is performed using the full-luminosity ATLAS Run-2 13 TeV pp...
Go to contribution page -
Alexander Milov (Weizmann Institute of Science)6/8/22, 9:55 AM
Multiparton interactions in proton-proton collisions have long been a topic of great interest. A new look at them has begun to emerge from work being done to understand the dynamics of ‘small systems’, a topic that is taking center stage in the physics of relativistic heavy-ion interactions. Numerous studies conducted at the LHC and lower energies reveal that proton-proton collisions at high...
Go to contribution page -
Eleftheria Solomonidi (IFIC (CSIC-Univ. of Valencia))6/8/22, 10:50 AM
In 2019 the LHCb experiment discovered for the first time a clear signal of direct CP violation in the charm meson decays to $\pi^+\pi^-$ and $K^+K^-$, a result which is expected to be further refined in the upcoming decade. However, the theoretical SM determination of the strong part of those amplitudes remains incomplete up to date. In this work, we make use of dispersion relations to...
Go to contribution page -
Robert Vertesi (Wigner Research Centre for Physics)6/8/22, 11:15 AM
Heavy-flavor quarks (charm and beauty) are produced in early partonic processes of high-energy collisions, thus they provide a unique opportunity to probe the entire evolution of the strongly interacting system. Heavy-flavor production in proton-proton collisions serves as fundamental benchmark for QCD calculations and flavor-dependent fragmentation in the mesonic and baryonic sector....
Go to contribution page -
Karin Schönning6/8/22, 11:40 AM
Hyperons provide an unique avenue to study the strong interaction in baryon structure.
Go to contribution page
Due to their limited life time, the production in e+e- annihilations is the only viable way to obtain information on the hyperon structure and internal dynamics through their electromagnetic form factors. With the unique data sets obtained by the BESIII collaboration, the pair production cross sections for... -
Nick Solomey (Wichita State University)6/9/22, 9:00 AM
In 1993 a new Hyperon Beta Decay study was introduced into the KTeV experiment and although it only collected less than a 1000 events it had a major impact, because it was the first to show that the CKM matrix obeyed Unitarity. This new ideas was introduced by a new post-doc just starting his career and the 98% analyzing power of these Hyperon decays allowed us to study beta decay form factors...
Go to contribution page -
Caleb Miller6/9/22, 9:30 AM
Belle II is considering upgrading SuperKEKB with a polarized electron beam. The introduction of beam polarization to the experiment would significantly expand the physics program of Belle II in the electroweak, dark , and lepton flavor universality sectors. For all of these future measurements a robust method of determining the average beam polarization is required to maximize the level of...
Go to contribution page -
Dr Xunwu Zuo (Karlsruhe Institute of Technology)6/9/22, 9:55 AM
The Z-pole operation at FCC-ee presents an unprecedented opportunity for heavy flavor physics, as the production of $5 \times 10^{12}$ Z bosons will result in about $8 \times 10^{11}$ b-quark pairs. Among all species of B hadrons produced at FCC-ee, the purely leptonic decays of the $B^+_c$ and $B^+$ mesons are the cleanest experimental probes to measure the off-diagonal CKM elements...
Go to contribution page -
Marcin Kucharczyk (IFJ PAN)6/9/22, 10:50 AM
MUonE experiment is planned to be operating at the SPS accelerator in 2022-2023 (pilot run) and 2023-27. The MUonE project provides a great potential to search for New Physics in the sector of anomalous muon magnetic moment a_μ, independently from the searches at LHC. The discrepancy between the most accurate determination of a_μ and the Standard Model predictions lies in the 4.2 standard...
Go to contribution page -
Agnieszka Obłąkowska-Mucha (AGH-UST Krakow)6/9/22, 11:15 AM
The second upgrade of the LHCb detector is planned for the long shutdown
Go to contribution page
4 of the LHC. In this upgrade, part of the existing spectrometer will be replaced and new tracking detectors allowing for time measurements will be installed. This upgrade will enable the exploitation of the physics potential of the high-luminosity LHC runs. The corresponding data sets will provide heavy flavour results... -
Antonio Iuliano (Università di Napoli Federico II and INFN)6/9/22, 11:40 AM
SND@LHC is a compact and stand-alone experiment to perform measurements with neutrinos produced at the LHC in a hitherto unexplored pseudo-rapidity region of 7.2 < 𝜂 < 8.6, complementary to all the other experiments at the LHC. The experiment is to be located 480 m downstream of IP1 in the unused TI18 tunnel. The detector is composed of a hybrid system based on an 800 kg target mass of...
Go to contribution page -
Mariola Kłusek-Gawenda (INP PAS)6/9/22, 1:10 PM
-
Flera Rizatdinova (Oklahoma State U)6/9/22, 1:35 PM
Supersymmetry (SUSY) provides elegant solutions to several problems in the Standard Model, and searches for SUSY particles are an important component of the LHC physics program. This talk will present the latest results from SUSY searches conducted by the ATLAS experiment. The searches target multiple final states and different assumptions about the decay mode of the produced SUSY particles,...
Go to contribution page -
Brian Shuve6/9/22, 2:00 PM
We present here the most recent BABAR results on searches for new particles with masses below the electroweak scale predicted by many extensions of the Standard Model (SM). The results are based on the full data set of about 500 $\text{fb}^{-1}$ collected at a center-of-mass energy close to 10 GeV by the BABAR detector at the $e^+e^-$ PEP-II collider. They include the search for a light...
Go to contribution page -
Yue Xu6/9/22, 2:55 PM
Recent results from the proton-proton collision data taken by the ATLAS experiment on exotic resonances will be presented. A search for $J/\psi p$ resonances in $\lambda_{b}\rightarrow J/\psi p K$ decays with large $p K$ invariant masses will be reported. Searches for exotic resonances in 4 muon final states will be shown.
Go to contribution page -
Joe Haley (Oklahoma State University)6/9/22, 3:20 PM
Vector like quarks appear in many theories beyond the Standard Model as a way to cancel the mass divergence for the Higgs boson. The talk will focus on the most recent results using 13 TeV pp collision data collected by the ATLAS detector. This presentation will address the analysis techniques, in particular the selection criteria, the background modelling and the related experimental...
Go to contribution page -
Prof. Tomasz Szumlak (AGH-UST Kraków)6/10/22, 9:00 AM
New methods for data analysis, including machine learning techniques, will be discussed during this presentation.
Go to contribution page -
Jakub Ryżka (AGH UST)6/10/22, 9:30 AM
The LHCb experiment collected the world's largest sample of charmed hadrons during LHC Run 1 and Run 2. With this data set, LHCb is currently providing the world's most precise measurements of properties (including searches for CP violation) and production of known charmed baryons, as well as discovering many previously unobserved states. The latest results from the LHCb Collaboration on...
Go to contribution page -
Izabela Babiarz6/10/22, 9:50 AM
We review results of pseudoscalar S-wave ηc(1S, 2S) quarkonia electromagnetic form factors for the ,(gamma star gamma star)->ηc) couplings
Go to contribution page
as well as their hadroproduction observables in kt-factorisation using the light-cone (LC) potential approach for the quarkonium wave function. The electromagnetic form factors are presented as functions of both photon virtualities. The light cone... -
Rupam Samanta (AGH University of Science and Technology)6/10/22, 10:45 AM
The weak interaction of B → DD¯ decays can be studied in the frame work of heavy flavor Effective Field Theory(EFT). An
Go to contribution page
alternative approach would be to assume flavor SU(3) symmetry between u,d and s quarks to study such (b → cc¯q¯) decays.
However, due to the mass difference (ms ? mu, md), in nature one has this flavor symmetry being broken. We calculated the
decay observables for B → DD¯... -
Saliha Bashir (AGH University of Science and Technology)6/10/22, 11:10 AM
Pythia 8.3 is an evolving physics event generator tool used in particle physics experiments for the modelling of hadronic events. The events are controlled by various parameters which could be tuned to match the real data. This talk investigates how various parameters in Pythia simulation influence the hadron multiplicities in proton-proton collisions at 14 TeV centre-of-mass-energy.
Go to contribution page -
Recent results on $B_{c}$ production and decays from the proton-proton collision data taken by the ATLAS experiment will be presented. The measurement of the differential ratios of $B_{c}^{+}$ and $B^{+}$ production cross sections at 8 TeV will be shown. New results on $B_{c}$ decays to $J/\psi D_{s}^{(*)}$ final states obtained with the Run 2 data at 13 TeV will also be reported.
Go to contribution page -
Recent results from the proton-proton collision data taken by the ATLAS experiment on charmonium production will be presented. The measurement of $J/\psi$ and $\psi(2S)$ differential cross sections will be reported as measured on the whole Run 2 dataset. Results on associated production of prompt $J/\psi$ and $W$ bosons in the 8 TeV data will be shown.
Go to contribution page -
BESIII has collected 2.93, 6.32, and 4.4 fb^-1 of e+e- collision data samples at 3.773, 4.178-4.226, and 4.6-4.7 GeV, respectively. In this talk, we will report the improved measurements of the strong phase differences between D0 and D0-bar into K_S/L h+h-, K-pi+pi0, and K-pi+pi+pi-, which are important inputs for precise determination of the CKM angle of gamma/phi_3. Also, we will report the...
Go to contribution page -
LHCb has collected the world's largest sample of charmed hadrons. This sample is used to 1) measure direct CP violation in D mesons and charmed baryons, 2) measure D0-D0bar mixing and the first non-zero mass difference, and to 3) search for CP violation in mixing and interference. New measurements from several decay modes are presented, as well as prospects for future sensitivities.
Go to contribution page -
The second upgrade of the LHCb detector is planned for the long shutdown
Go to contribution page
4 of the LHC. In this upgrade, part of the existing spectrometer will be replaced and new tracking detectors allowing for time measurements will be installed. This upgrade will enable the exploitation of the physics potential of the high-luminulosity LHC runs. The corresponding data sets will provide heavy flavor results... -
Choose timezone
Your profile timezone: