Project description
The quest for the elusive glueball particles
Glueballs are exotic particles made up entirely of gluons – the 'sticky' particles that keep nuclear particles together. Although their existence was predicted by the theory of the strong interaction between quarks and gluons – quantum chromodynamics – four decades ago, they have so far eluded experimental confirmation. The EU-funded Glueballs at BESIII project plans to search for this exotic particle through their radiative J/psi decays into a vector particle and a pair of pseudoscalar mesons. Combining the results from these different decay channels in a coupled channel amplitude analysis should allow researchers to investigate the glueball components of the five established scalar states and the existence of the glueball itself.
Objective
We propose to search for the scalar glueball, an exotic particle consisting entirely of the gauge bosons of the strong interaction, the gluons, using ten billion decays of the charmonium state J/psi recently accumulated with the BESIII experiment.
The existence of glueballs has been predicted by the theory of the strong interaction, quantum chromodynamics (QCD), four decades ago. Yet, to date there has not been experimental evidence. Exploiting the unprecedented statistics of the BESIII experiment in combination with modern day high performance computing, we aim to uncover the glueball in a complex coupled channel amplitude analysis of J/psi decays into final states containing a vector particle and two pseudoscalar mesons. While radiative decays present a favourable, gluon-rich environment, massive vector mesons act as a flavour filter for an intermediate scalar resonance that subsequently decays to the two pseudoscalar mesons. Combining the information from these different decay channels in a coupled channel amplitude analysis will allow us to investigate the glueball components of the five established scalar states and by this the existence of the glueball itself. Our proposed work will, thus, address one of the pressing questions of QCD.
To achieve our goal, we will develop a framework combining state-of-the-art amplitude analysis in K-matrix formalism with high performance computing on graphics processing units and will furthermore strongly collaborate with the Joint Physics Analysis Center hosted at Indiana University.
The knowledge acquired during the outgoing phase, regarding the physics topic of the proposal, advanced aspects of amplitude analysis and a general purpose, high performance computing framework for such studies will be transferred back to Europe during the returning period. It will directly benefit ongoing research efforts at Johannes Gutenberg Universität Mainz as well as upcoming particle physics experiments like PANDA at FAIR hosted in Europe.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences theoretical physics particle physics gluons
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering computer hardware supercomputers
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2019
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
55122 Mainz
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.