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name="searchtype"><option value="all">All fields</option><option value="title">Title</option><option selected value="author">Author(s)</option><option value="abstract">Abstract</option><option value="comments">Comments</option><option value="journal_ref">Journal reference</option><option value="acm_class">ACM classification</option><option value="msc_class">MSC classification</option><option value="report_num">Report number</option><option value="paper_id">arXiv identifier</option><option value="doi">DOI</option><option value="orcid">ORCID</option><option value="license">License (URI)</option><option value="author_id">arXiv author ID</option><option value="help">Help pages</option><option value="full_text">Full text</option></select> <input id="query" name="query" type="text" value="Bala, R"> <ul id="abstracts"><li><input checked id="abstracts-0" name="abstracts" type="radio" value="show"> <label for="abstracts-0">Show abstracts</label></li><li><input id="abstracts-1" name="abstracts" type="radio" value="hide"> <label for="abstracts-1">Hide abstracts</label></li></ul> </div> <div class="box field is-grouped is-grouped-multiline level-item"> <div class="control"> <span class="select is-small"> <select id="size" name="size"><option value="25">25</option><option selected value="50">50</option><option value="100">100</option><option value="200">200</option></select> </span> <label for="size">results per page</label>. </div> <div class="control"> <label for="order">Sort results by</label> <span class="select is-small"> <select id="order" name="order"><option selected value="-announced_date_first">Announcement date (newest first)</option><option value="announced_date_first">Announcement date (oldest first)</option><option value="-submitted_date">Submission date (newest first)</option><option value="submitted_date">Submission date (oldest first)</option><option value="">Relevance</option></select> </span> </div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.09965">arXiv:2108.09965</a> <span>  </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Simulation study of Open Charm production in proton-proton collisions at $\sqrt{s}$ = 13 TeV using Pythia 8 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Singh%2C+R">Randhir Singh</a>, <a href="/search/nucl-ex?searchtype=author&query=Sharma%2C+B">Binti Sharma</a>, <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a>, <a href="/search/nucl-ex?searchtype=author&query=Sambyal%2C+S+S">Sanjeev Singh Sambyal</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.09965v4-abstract-short" style="display: inline;"> Charm and beauty are heavy quarks with observed masses of 1.28 GeV/$\textit{c}^2$ and 4.18 GeV/$\textit{c}^2$ respectively. They are produced in initial hard scattering processes. Due to their small formation time ($螖t \sim0.1 fm/\textit{c}$) as compared to the formation time of QGP ($螖t \sim0.3 fm/\textit{c}$) at the LHC, they experience all the stages occuring during the time evolution of the ho… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09965v4-abstract-full').style.display = 'inline'; document.getElementById('2108.09965v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.09965v4-abstract-full" style="display: none;"> Charm and beauty are heavy quarks with observed masses of 1.28 GeV/$\textit{c}^2$ and 4.18 GeV/$\textit{c}^2$ respectively. They are produced in initial hard scattering processes. Due to their small formation time ($螖t \sim0.1 fm/\textit{c}$) as compared to the formation time of QGP ($螖t \sim0.3 fm/\textit{c}$) at the LHC, they experience all the stages occuring during the time evolution of the hot and dense medium produced in heavy-ion collisions. Therefore, the measurement of open charm and beauty production allows probing QGP properties and investigating the color charge and mass dependence of the parton in-medium energy loss. Moreover, due to their large masses ($m_c , m_b \gg 螞_{QCD}$ ) their pp production cross-sections are calculable within the domain of perturbative QCD constituting an excellent test of pQCD calculations. The aim of this study is to understand the processes involved in the production of charm quarks through the productions of D$^+$, D$^0$, D$^+_s$ and $螞_c^+$ hadrons. Further to investigate the possibility of hadronization of the charm quarks, ratios like $螞_c^+$/$D^+$, $D_s^+$/$D^+$, $螞_c^+$/$D^0$ and $D_s^+$/$D^0$ are also measured. For the current analysis, the events are generated by using PYTHIA 8 for pp collisions at $\sqrt{s}$ = 13 TeV. PYTHIA 8 has proved to be quite successful in explaining the heavy-flavor particle production at the LHC energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09965v4-abstract-full').style.display = 'none'; document.getElementById('2108.09965v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">additional work required</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.01211">arXiv:1902.01211</a> <span> [<a href="https://arxiv.org/pdf/1902.01211">pdf</a>, <a href="https://arxiv.org/format/1902.01211">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> A next-generation LHC heavy-ion experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adamov%C3%A1%2C+D">D. Adamov谩</a>, <a href="/search/nucl-ex?searchtype=author&query=Rinella%2C+G+A">G. Aglieri Rinella</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aleksandrov%2C+D">D. Aleksandrov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alici%2C+A">A. Alici</a>, <a href="/search/nucl-ex?searchtype=author&query=Alkin%2C+A">A. Alkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Alt%2C+T">T. Alt</a>, <a href="/search/nucl-ex?searchtype=author&query=Altsybeev%2C+I">I. Altsybeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreou%2C+D">D. Andreou</a>, <a href="/search/nucl-ex?searchtype=author&query=Andronic%2C+A">A. Andronic</a>, <a href="/search/nucl-ex?searchtype=author&query=Antinori%2C+F">F. Antinori</a>, <a href="/search/nucl-ex?searchtype=author&query=Antonioli%2C+P">P. Antonioli</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelsh%C3%A4user%2C+H">H. Appelsh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnaldi%2C+R">R. Arnaldi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Arslandok%2C+M">M. Arslandok</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmi%2C+M+D">M. D. Azmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailhache%2C+R">R. Bailhache</a>, <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">R. Bala</a>, <a href="/search/nucl-ex?searchtype=author&query=Barioglio%2C+L">L. Barioglio</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnaf%C3%B6ldi%2C+G+G">G. G. Barnaf枚ldi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a> , et al. (374 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1902.01211v2-abstract-short" style="display: inline;"> The present document discusses plans for a compact, next-generation multi-purpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly massless barrel detector consisting of truly cylindrical layers based on curved wafer-scale ultra-thin silicon sensors with MAPS technology, featuring an unprecedented low material budget of 0.05% X$_0$ per layer, with th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.01211v2-abstract-full').style.display = 'inline'; document.getElementById('1902.01211v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.01211v2-abstract-full" style="display: none;"> The present document discusses plans for a compact, next-generation multi-purpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly massless barrel detector consisting of truly cylindrical layers based on curved wafer-scale ultra-thin silicon sensors with MAPS technology, featuring an unprecedented low material budget of 0.05% X$_0$ per layer, with the innermost layers possibly positioned inside the beam pipe. In addition to superior tracking and vertexing capabilities over a wide momentum range down to a few tens of MeV/$c$, the detector will provide particle identification via time-of-flight determination with about 20~ps resolution. In addition, electron and photon identification will be performed in a separate shower detector. The proposed detector is conceived for studies of pp, pA and AA collisions at luminosities a factor of 20 to 50 times higher than possible with the upgraded ALICE detector, enabling a rich physics program ranging from measurements with electromagnetic probes at ultra-low transverse momenta to precision physics in the charm and beauty sector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.01211v2-abstract-full').style.display = 'none'; document.getElementById('1902.01211v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Input to the 2020 Update of the European Particle Physics Strategy</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1605.03939">arXiv:1605.03939</a> <span> [<a href="https://arxiv.org/pdf/1605.03939">pdf</a>, <a href="https://arxiv.org/format/1605.03939">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1142/S0218301316420064">10.1142/S0218301316420064 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Heavy-ion physics at the LHC: Review of Run I results </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a>, <a href="/search/nucl-ex?searchtype=author&query=Bautista%2C+I">Irais Bautista</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">Jana Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Ortiz%2C+A">Antonio Ortiz</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1605.03939v2-abstract-short" style="display: inline;"> In this work we review what we consider are, some of the most relevant results of heavy-ion physics at the LHC. This paper is not intended to cover all the many important results of the experiments, instead we present a brief overview of the current status on the characterization of the hot and dense QCD medium produced in the heavy-ion collisions. Recent exciting results which are still under deb… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.03939v2-abstract-full').style.display = 'inline'; document.getElementById('1605.03939v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1605.03939v2-abstract-full" style="display: none;"> In this work we review what we consider are, some of the most relevant results of heavy-ion physics at the LHC. This paper is not intended to cover all the many important results of the experiments, instead we present a brief overview of the current status on the characterization of the hot and dense QCD medium produced in the heavy-ion collisions. Recent exciting results which are still under debate are discussed too, leading to intriguing questions like whether we have a real or fake QGP formation in small systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.03939v2-abstract-full').style.display = 'none'; document.getElementById('1605.03939v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 May, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 May, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">29 pages, 23 figures. To be published in the Focus Issue entitled "Topics in Nonperturbative QCD: Newest development in theory and experiment" in the Int. J. Mod. Phys. E</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Int. J. of Mod. Phys. E25 (2016) 1642006 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1309.6570">arXiv:1309.6570</a> <span> [<a href="https://arxiv.org/pdf/1309.6570">pdf</a>, <a href="https://arxiv.org/ps/1309.6570">ps</a>, <a href="https://arxiv.org/format/1309.6570">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/509/1/012081">10.1088/1742-6596/509/1/012081 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Open-charm production as a function of charged particle multiplicity in pp collisions at \sqrt{s}=7 TeV with ALICE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1309.6570v1-abstract-short" style="display: inline;"> Heavy quarks (charm and beauty) are an effective tool to investigate the properties of the Quark-Gluon Plasma created in heavy-ion collisions as they are produced in initial hard scattering processes and as they experience all the stages of the medium evolution. The measurement of heavy-flavour production cross sections in pp collisions at the LHC, besides providing a reference for heavy-ion studi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1309.6570v1-abstract-full').style.display = 'inline'; document.getElementById('1309.6570v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1309.6570v1-abstract-full" style="display: none;"> Heavy quarks (charm and beauty) are an effective tool to investigate the properties of the Quark-Gluon Plasma created in heavy-ion collisions as they are produced in initial hard scattering processes and as they experience all the stages of the medium evolution. The measurement of heavy-flavour production cross sections in pp collisions at the LHC, besides providing a reference for heavy-ion studies, allows one to test perturbative QCD calculations. A brief review of ALICE results on the production of heavy-flavoured hadrons measured from fully reconstructed hadronic decay topologies in pp collisions at \sqrt{s} = 7 TeV is presented. Furthermore, heavy-flavour production was also studied as a function of the particle multiplicity in pp collisions. This could provide insight into multi-parton scatterings. A measurement of the inclusive J/蠄 yield as a function of the charged-particle pseudorapidity density was performed by the ALICE Collaboration at the LHC in pp collisions at \sqrt{s} = 7 TeV. An increase of the J/蠄 yield with increasing multiplicity was observed. In this context, the study of the yield of D mesons as a function of the charged-particle multiplicity could provide a deeper insight into charm-quark production in pp collisions. We will present the first results obtained for prompt D0, D+, and D*+ mesons using hadronic decay channels at midrapidity in pp collisions \sqrt{s}=7 TeV as a function of the charged-particle multiplicity. The prompt D-meson yields as a function of multiplicity are measured in different pT intervals. These yields will be compared to the results obtained for inclusive and non-prompt J/蠄. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1309.6570v1-abstract-full').style.display = 'none'; document.getElementById('1309.6570v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 September, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Proceeding of SQM 2013, 4 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1208.4243">arXiv:1208.4243</a> <span> [<a href="https://arxiv.org/pdf/1208.4243">pdf</a>, <a href="https://arxiv.org/ps/1208.4243">ps</a>, <a href="https://arxiv.org/format/1208.4243">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Heavy flavour and quarkonia production measurement in pp and Pb-Pb collisions at LHC energies with the ALICE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1208.4243v1-abstract-short" style="display: inline;"> ALICE is the dedicated heavy-ion experiment at the LHC. Its main physics goal is to study the properties of strongly-interacting matter at conditions of high energy density and high temperature expected to be reached in central Pb--Pb collisions. Charm and beauty quarks are well-suited tools to investigate this state of matter since they are produced in initial hard scatterings and are therefore g… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1208.4243v1-abstract-full').style.display = 'inline'; document.getElementById('1208.4243v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1208.4243v1-abstract-full" style="display: none;"> ALICE is the dedicated heavy-ion experiment at the LHC. Its main physics goal is to study the properties of strongly-interacting matter at conditions of high energy density and high temperature expected to be reached in central Pb--Pb collisions. Charm and beauty quarks are well-suited tools to investigate this state of matter since they are produced in initial hard scatterings and are therefore generated early in the system evolution and probe its hottest, densest stage. ALICE recorded pp data at $\rm \sqrt{s}$ = 7 TeV and 2.76 TeV and Pb--Pb data at $\rm \sqrt{s}_{\rm NN}$=2.76 TeV in 2010 and 2011. We present the latest results on heavy flavour and J/$蠄$ production at both central and forward rapidity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1208.4243v1-abstract-full').style.display = 'none'; document.getElementById('1208.4243v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 August, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 4 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1201.0729">arXiv:1201.0729</a> <span> [<a href="https://arxiv.org/pdf/1201.0729">pdf</a>, <a href="https://arxiv.org/ps/1201.0729">ps</a>, <a href="https://arxiv.org/format/1201.0729">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/381/1/012034">10.1088/1742-6596/381/1/012034 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Inclusive Open Charm Production in pp and Pb-Pb collisions with the ALICE Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1201.0729v1-abstract-short" style="display: inline;"> ALICE is the dedicated heavy-ion experiment at the LHC. Its main physics goal is to study the properties of strongly-interacting matter at conditions of high energy density (>10 GeV/ fm^3) and high temperature (> 0.5 GeV) expected to be reached in central Pb-Pb collisions. Charm and beauty quarks are powerful tools to investigate this high density and strongly interacting state of matter since the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1201.0729v1-abstract-full').style.display = 'inline'; document.getElementById('1201.0729v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1201.0729v1-abstract-full" style="display: none;"> ALICE is the dedicated heavy-ion experiment at the LHC. Its main physics goal is to study the properties of strongly-interacting matter at conditions of high energy density (>10 GeV/ fm^3) and high temperature (> 0.5 GeV) expected to be reached in central Pb-Pb collisions. Charm and beauty quarks are powerful tools to investigate this high density and strongly interacting state of matter since they are produced in initial hard scatterings that are therefore generated early in the system evolution and probe its hottest, densest stage. The measurement of the charm production cross sections in pp collisions provides an interesting insight into QCD processes and is crucial as a reference for heavy ion studies. We present open charm cross section measurements in pp collisions at \sqrt{s} = 7 TeV and \sqrt{s}=2.76 TeV in the central rapidity region. In addition, the first measurement of nuclear modification factor of D-meson in Pb-Pb collisions at \sqrt{s}= 2.76 TeV is shown. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1201.0729v1-abstract-full').style.display = 'none'; document.getElementById('1201.0729v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 January, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 page, 5 figures, Conference Proceeding to be published in Journal of Physics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1102.0199">arXiv:1102.0199</a> <span> [<a href="https://arxiv.org/pdf/1102.0199">pdf</a>, <a href="https://arxiv.org/ps/1102.0199">ps</a>, <a href="https://arxiv.org/format/1102.0199">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Open Charm Analysis at Central Rapidity in ALICE using the first year of pp data at \sqrt{s}=7 TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1102.0199v1-abstract-short" style="display: inline;"> ALICE is the dedicated heavy-ion experiment at the LHC. Its main physics goal is to study the properties of the strongly-interacting matter in the conditions of high energy density (>10 GeV/fm3) and high temperature (> 0.3 GeV) expected to be reached in central Pb芒Pb collisions. Charm and beauty quarks are a powerful tool to investigate this high density and strongly interacting state of matter as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1102.0199v1-abstract-full').style.display = 'inline'; document.getElementById('1102.0199v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1102.0199v1-abstract-full" style="display: none;"> ALICE is the dedicated heavy-ion experiment at the LHC. Its main physics goal is to study the properties of the strongly-interacting matter in the conditions of high energy density (>10 GeV/fm3) and high temperature (> 0.3 GeV) expected to be reached in central Pb芒Pb collisions. Charm and beauty quarks are a powerful tool to investigate this high density and strongly interacting state of matter as they are produced in initial hard scatterings, and due to their long life time, they probe all the stages of the system evolution. The detector design was optimized for heavy ions but is also well suited for pp studies. ALICE recorded pp data at s= 7 TeV since march 2010 and the first run with heavy ion collisions took place in November 2010. The measurement of charm production cross section in pp collisions provides interesting insight into QCD processes and is important as a reference for heavy ion studies. The measurement of the D- meson yield in pp collisions can be used to extract the charm cross section. In this contribution, the ongoing study of reconstruction of D-mesons through hadronic decay channels and the first preliminary results obtained with \sqrt{s}= 7 TeV pp data will be presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1102.0199v1-abstract-full').style.display = 'none'; document.getElementById('1102.0199v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 February, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 2 figures, Conference proceeding to be published in Nucl. Phys. A</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1009.1607">arXiv:1009.1607</a> <span> [<a href="https://arxiv.org/pdf/1009.1607">pdf</a>, <a href="https://arxiv.org/ps/1009.1607">ps</a>, <a href="https://arxiv.org/format/1009.1607">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysbps.2010.12.040">10.1016/j.nuclphysbps.2010.12.040 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of D-mesons using hadronic decay channels with the ALICE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1009.1607v1-abstract-short" style="display: inline;"> At LHC energy, heavy quarks will be abundantly produced and the design of the ALICE Experiment will allow us to study their production using several channels. We investigate the feasibility of the study of D mesons reconstructed in their exclusive hadronic decay channel. After reviewing the ALICE potential for such studies, we will present some results for the two more promising decay channels i.e… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1009.1607v1-abstract-full').style.display = 'inline'; document.getElementById('1009.1607v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1009.1607v1-abstract-full" style="display: none;"> At LHC energy, heavy quarks will be abundantly produced and the design of the ALICE Experiment will allow us to study their production using several channels. We investigate the feasibility of the study of D mesons reconstructed in their exclusive hadronic decay channel. After reviewing the ALICE potential for such studies, we will present some results for the two more promising decay channels i.e D0->KPi and D+ -> K-Pi+Pi+ obtained with 7 TeV pp data and 5.5 A TeV Pb-Pb Monte Carlo data . <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1009.1607v1-abstract-full').style.display = 'none'; document.getElementById('1009.1607v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 September, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 Pages, 5 Figures. Conference Proceeding to be published in Nuclear Physics B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Phys.Proc.Suppl.210-211:33-36,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1001.2276">arXiv:1001.2276</a> <span> [<a href="https://arxiv.org/pdf/1001.2276">pdf</a>, <a href="https://arxiv.org/ps/1001.2276">ps</a>, <a href="https://arxiv.org/format/1001.2276">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/5/02/P02008">10.1088/1748-0221/5/02/P02008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Charge collection in the Silicon Drift Detectors of the ALICE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Alessandro%2C+B">B. Alessandro</a>, <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">R. Bala</a>, <a href="/search/nucl-ex?searchtype=author&query=Batigne%2C+G">G. Batigne</a>, <a href="/search/nucl-ex?searchtype=author&query=Beole%27%2C+S">S. Beole'</a>, <a href="/search/nucl-ex?searchtype=author&query=Biolcati%2C+E">E. Biolcati</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerello%2C+P">P. Cerello</a>, <a href="/search/nucl-ex?searchtype=author&query=Coli%2C+S">S. Coli</a>, <a href="/search/nucl-ex?searchtype=author&query=Morales%2C+Y+C">Y. Corrales Morales</a>, <a href="/search/nucl-ex?searchtype=author&query=Crescio%2C+E">E. Crescio</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Remigis%2C+P">P. De Remigis</a>, <a href="/search/nucl-ex?searchtype=author&query=Falchieri%2C+D">D. Falchieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Giraudo%2C+G">G. Giraudo</a>, <a href="/search/nucl-ex?searchtype=author&query=Giubellino%2C+P">P. Giubellino</a>, <a href="/search/nucl-ex?searchtype=author&query=Lea%2C+R">R. Lea</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiesa%2C+A+M">A. Marzari Chiesa</a>, <a href="/search/nucl-ex?searchtype=author&query=Masera%2C+M">M. Masera</a>, <a href="/search/nucl-ex?searchtype=author&query=Mazza%2C+G">G. Mazza</a>, <a href="/search/nucl-ex?searchtype=author&query=Ortona%2C+G">G. Ortona</a>, <a href="/search/nucl-ex?searchtype=author&query=Prino%2C+F">F. Prino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramello%2C+L">L. Ramello</a>, <a href="/search/nucl-ex?searchtype=author&query=Rashevsky%2C+A">A. Rashevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Riccati%2C+L">L. Riccati</a>, <a href="/search/nucl-ex?searchtype=author&query=Rivetti%2C+A">A. Rivetti</a>, <a href="/search/nucl-ex?searchtype=author&query=Senyukov%2C+S">S. Senyukov</a>, <a href="/search/nucl-ex?searchtype=author&query=Siciliano%2C+M">M. Siciliano</a> , et al. (4 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1001.2276v1-abstract-short" style="display: inline;"> A detailed study of charge collection efficiency has been performed on the Silicon Drift Detectors (SDD) of the ALICE experiment. Three different methods to study the collected charge as a function of the drift time have been implemented. The first approach consists in measuring the charge at different injection distances moving an infrared laser by means of micrometric step motors. The second m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1001.2276v1-abstract-full').style.display = 'inline'; document.getElementById('1001.2276v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1001.2276v1-abstract-full" style="display: none;"> A detailed study of charge collection efficiency has been performed on the Silicon Drift Detectors (SDD) of the ALICE experiment. Three different methods to study the collected charge as a function of the drift time have been implemented. The first approach consists in measuring the charge at different injection distances moving an infrared laser by means of micrometric step motors. The second method is based on the measurement of the charge injected by the laser at fixed drift distance and varying the drift field, thus changing the drift time. In the last method, the measurement of the charge deposited by atmospheric muons is used to study the charge collection efficiency as a function of the drift time. The three methods gave consistent results and indicated that no charge loss during the drift is observed for the sensor types used in 99% of the SDD modules mounted on the ALICE Inner Tracking System. The atmospheric muons have also been used to test the effect of the zero-suppression applied to reduce the data size by erasing the counts in cells not passing the thresholds for noise removal. As expected, the zero suppression introduces a dependence of the reconstructed charge as a function of drift time because it cuts the signal in the tails of the electron clouds enlarged by diffusion effects. These measurements allowed also to validate the correction for this effect extracted from detailed Monte Carlo simulations of the detector response and applied in the offline data reconstruction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1001.2276v1-abstract-full').style.display = 'none'; document.getElementById('1001.2276v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 January, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2010_JINST_5_P02008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0907.1947">arXiv:0907.1947</a> <span> [<a href="https://arxiv.org/pdf/0907.1947">pdf</a>, <a href="https://arxiv.org/ps/0907.1947">ps</a>, <a href="https://arxiv.org/format/0907.1947">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Open Charm Mesons at the LHC with ALICE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">Renu Bala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0907.1947v1-abstract-short" style="display: inline;"> The ALICE experiment will be able to detect hadrons containing charm and beauty quarks in proton-proton and heavy ion collisions in the new energy regime of the CERN Large Hadron Collider (LHC). Open charmed mesons are a powerful tool to study the medium produced in heavy ion collisions, since charm quarks are produced on a very short time scale and they experience the whole history of the colli… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0907.1947v1-abstract-full').style.display = 'inline'; document.getElementById('0907.1947v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0907.1947v1-abstract-full" style="display: none;"> The ALICE experiment will be able to detect hadrons containing charm and beauty quarks in proton-proton and heavy ion collisions in the new energy regime of the CERN Large Hadron Collider (LHC). Open charmed mesons are a powerful tool to study the medium produced in heavy ion collisions, since charm quarks are produced on a very short time scale and they experience the whole history of the collision. In addition, the measurements of heavy flavour yield provide a natural normalization for those of charmonia and bottomonia production at LHC. In this talk, after a general overview of ALICE perspectives for heavy flavour physics, we will report some study of D-meson reconstruction through their hadronic decay channels with Monte Carlo simulated data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0907.1947v1-abstract-full').style.display = 'none'; document.getElementById('0907.1947v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 July, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures</span> </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search 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