The production mechanism of (anti)nuclei in ultrarelativistic hadronic collisions is under intense debate in the scientific community. The description of the experimental measurements is currently based on two competing phenomenological models: the statistical hadronization model and the coalescence approach. Light (anti)nuclei have been extensively measured in small collision systems, namely pp and p--Pb collisions, with ALICE at the LHC. Recent results on the (anti)deuteron production measured in jets and in the underlying event, and in high-multiplicity pp collisions at a center-of-mass energy $sqrt{s}$ = 13 TeV are discussed in the context of phenomenological models, as they provide new insights on the nucleosynthesis process.
{"title":"(Anti)(hyper)nuclei production in small collision systems measured with ALICE at the LHC","authors":"C. Pinto","doi":"10.22323/1.419.0046","DOIUrl":"https://doi.org/10.22323/1.419.0046","url":null,"abstract":"The production mechanism of (anti)nuclei in ultrarelativistic hadronic collisions is under intense debate in the scientific community. The description of the experimental measurements is currently based on two competing phenomenological models: the statistical hadronization model and the coalescence approach. Light (anti)nuclei have been extensively measured in small collision systems, namely pp and p--Pb collisions, with ALICE at the LHC. Recent results on the (anti)deuteron production measured in jets and in the underlying event, and in high-multiplicity pp collisions at a center-of-mass energy $sqrt{s}$ = 13 TeV are discussed in the context of phenomenological models, as they provide new insights on the nucleosynthesis process.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134431941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The exploration of the QCD phase diagram is the goal of many experiments in the world. The low net baryon density region is relatively well studied, while the one corresponding to higher net densities still contains multiple unrevealed puzzles getting significant attention. In multiple experimental complexes such as STAR or HADES, the heavy ions collide at relatively lower energies than those obtained at LHC, creating"not the hottest soup"of nuclear matter. The examination of it provides unique insights into understanding the properties of matter production and its transitions. In this paper, several of the significant experimental discoveries are reviewed.
{"title":"The soup that is not too hot","authors":"M. Stefaniak","doi":"10.22323/1.419.0058","DOIUrl":"https://doi.org/10.22323/1.419.0058","url":null,"abstract":"The exploration of the QCD phase diagram is the goal of many experiments in the world. The low net baryon density region is relatively well studied, while the one corresponding to higher net densities still contains multiple unrevealed puzzles getting significant attention. In multiple experimental complexes such as STAR or HADES, the heavy ions collide at relatively lower energies than those obtained at LHC, creating\"not the hottest soup\"of nuclear matter. The examination of it provides unique insights into understanding the properties of matter production and its transitions. In this paper, several of the significant experimental discoveries are reviewed.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128593895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We compute masses of bottomonium and charmonium bound states using a Schr"odinger equation with a heavy quark-antiquark potential including $1/m$ and $1/m^2$ corrections previously derived in potential Non-Relativistic QCD and computed with lattice QCD. This is a preparatory step for a future project, where we plan to take into account similar corrections to study quarkonium resonances and tetraquarks above the lowest meson-meson thresholds.
{"title":"Computation of masses of quarkonium bound states using heavy quark potentials from lattice QCD","authors":"Michael Eichberg, M. Wagner","doi":"10.22323/1.419.0014","DOIUrl":"https://doi.org/10.22323/1.419.0014","url":null,"abstract":"We compute masses of bottomonium and charmonium bound states using a Schr\"odinger equation with a heavy quark-antiquark potential including $1/m$ and $1/m^2$ corrections previously derived in potential Non-Relativistic QCD and computed with lattice QCD. This is a preparatory step for a future project, where we plan to take into account similar corrections to study quarkonium resonances and tetraquarks above the lowest meson-meson thresholds.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121621389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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