20 research outputs found

    An experiment for electron-hadron scattering at the LHC

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    Novel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron (eheh) scattering experiment at the LHC in the thirties for which key physics topics and their relation to the hadron-hadron HL-LHC physics programme are discussed. Demands are derived set by these physics topics on the design of the LHeC detector, a corresponding update of which is described. Optimisations on the accelerator design, especially the interaction region (IR), are presented. Initial accelerator considerations indicate that a common IR is possible to be built which alternately could serve eheh and hhhh collisions while other experiments would stay on hhhh in either condition. A forward-backward symmetrised option of the LHeC detector is sketched which would permit extending the LHeC physics programme to also include aspects of hadron-hadron physics. The vision of a joint eheh and hhhh physics experiment is shown to open new prospects for solving fundamental problems of high energy heavy-ion physics including the partonic structure of nuclei and the emergence of hydrodynamics in quantum field theory while the genuine TeV scale DIS physics is of unprecedented rank.Comment: 27 pages, 24 figures, 6 tables; to appear in Eur. Phys. J.

    FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1

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    We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, the top quark and flavour, as well as phenomena beyond the Standard Model. We highlight the synergy and complementarity of the different colliders, which will contribute to a uniquely coherent and ambitious research programme, providing an unmatchable combination of precision and sensitivity to new physics

    FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3

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    In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries

    FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3

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    In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries

    Patient perspectives on the impact of acromegaly: results from individual and group interviews

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    Michelle H Gurel,1 Paul R Bruening,2 Christine Rhodes,2 Kathleen G Lomax31Neuroendocrine Clinical Center, Massachusetts General Hospital, Boston, MA, USA; 2Nicholas Research Associates International, New York, NY, USA; 3Medical Affairs, Ipsen Biopharmaceuticals, Inc., Basking Ridge, NJ, USAPurpose: Acromegaly is a chronic condition resulting from a growth hormone-secreting pituitary tumor that can substantially impact patients' physical and emotional well-being. We sought to understand the impact of acromegaly on disease-related concerns and treatment choices from the patient perspective. The path to diagnosis, current disease management, interactions with the treating health care providers (HCPs), and support networks were also assessed.Methods: Acromegaly patients were recruited primarily from a patient support group (Acromegaly Community). In Phase I, ten patients participated over the course of 5 days in a moderated online discussion board and they answered questions about their disease. In Phase II, a separate nine-patient cohort participated in face-to-face interviews conducted during an acromegaly patient conference. Data were summarized qualitatively by grouping similar answers and quotations.Results: Nineteen acromegaly patients were recruited across the two cohorts, and both groups shared similar concerns. They demonstrated a notable interest in understanding their disease and its treatment. Patients were focused on the impact of the disease on their life, and they expressed a desire to get beyond reminders of their disease. The patients described long journeys to a correct diagnosis and relief at having a name for their condition. Many shared a sense of shock at needing pituitary surgery and felt unsatisfied by the treatment decision process, motivating them to discuss it with other patients. Patients not connected to a patient support group reported feeling helpless and lonely. Most patients shared a desire to improve their general knowledge about acromegaly to spare others their protracted diagnostic period. Patients also reported hesitancy in asking questions or sharing details about the disease's impact on their lives with their HCPs.Conclusion: Acromegaly can be a life-changing diagnosis with profound, ongoing effects on patients' lives. Patients struggle with many issues they fail to openly share with their HCPs, but may discuss these issues more easily with other acromegaly patients. Better collaboration between patients and care providers could lead to increased patient satisfaction.Keywords: acromegaly, impact on patients' lives, patient perspective, somatostatin analog

    Sugar Profile of Kernels as a Marker of Origin and Ripening Time of Peach (Prunus persicae L.)

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    Large amounts of fruit seeds, especially peach, are discarded annually in juice or conserve producing industries which is a potential waste of valuable resource and serious disposal problem. Regarding the fact that peach seeds can be obtained as a byproduct from processing companies their exploitation should be greater and, consequently more information of cultivars' kernels and their composition is required. A total of 25 samples of kernels from various peach germplasm (including commercial cultivars, perspective hybrids and vineyard peach accessions) differing in origin and ripening time were characterized by evaluation of their sugar composition. Twenty characteristic carbohydrates and sugar alcohols were determined and quantified using high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC/PAD). Sucrose, glucose and fructose are the most important sugars in peach kernels similar to other representatives of the Rosaceae family. Also, high amounts of sugars in seeds of promising hybrids implies that through conventional breeding programs peach kernels with high sugar content can be obtained. In addition, by the means of several pattern recognition methods the variables that discriminate peach kernels arising from diverse germplasm and different stage of maturity were identified and successful models for further prediction were developed. Sugars such as ribose, trehalose, arabinose, galactitol, fructose, maltose, sorbitol, sucrose, iso-maltotriose were marked as most important for such discrimination
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