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1,188 results on '"Armesto N"'

1. Science Requirements and Detector Concepts for the Electron-Ion Collider EIC Yellow Report

Author: Khalek, R Abdul, Accardi, A, Adam, J, Adamiak, D, Akers, W, Albaladejo, M, Al-bataineh, A, Alexeev, MG, Ameli, F, Antonioli, P, Armesto, N, Armstrong, WR, Arratia, M, Arrington, J, Asaturyan, A, Asai, M, Aschenauer, EC, Aune, S, Avagyan, H, Gayoso, C Ayerbe, Azmoun, B, Bacchetta, A, Baker, MD, Barbosa, F, Barion, L, Barish, KN, Barry, PC, Battaglieri, M, Bazilevsky, A, Behera, NK, Benmokhtar, F, Berdnikov, VV, Bernauer, JC, Bertone, V, Bhattacharya, S, Bissolotti, C, Boer, D, Boglione, M, Bondì, M, Boora, P, Borsa, I, Bossù, F, Bozzi, G, Brandenburg, JD, Brei, N, Bressan, A, Brooks, WK, Bufalino, S, Bukhari, MHS, Burkert, V, Buttimore, NH, Camsonne, A, Celentano, A, Celiberto, FG, Chang, W, Chatterjee, C, Chen, K, Chetry, T, Chiarusi, T, Chien, Y-T, Chiosso, M, Chu, X, Chudakov, E, Cicala, G, Cisbani, E, Cloet, IC, Cocuzza, C, Cole, PL, Colella, D, Collins, JL, Constantinou, M, Contalbrigo, M, Contin, G, Corliss, R, Cosyn, W, Courtoy, A, Crafts, J, Cruz-Torres, R, Cuevas, RC, D'Alesio, U, Torre, S Dalla, Das, D, Dasgupta, SS, Da Silva, C, Deconinck, W, Defurne, M, DeGraw, W, Dehmelt, K, Del Dotto, A, Delcarro, F, Deshpande, A, Detmold, W, De Vita, R, Diefenthaler, M, Dilks, C, Dixit, DU, Dulat, S, Dumitru, A, Dupré, R, and Durham, JM
Subjects: Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Affordable and Clean Energy, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Nuclear and plasma physics, Particle and high energy physics
Abstract: This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The EIC will be a powerful new high-luminosity facility in the United States with the capability to collide high-energy electron beams with high-energy proton and ion beams, providing access to those regions in the nucleon and nuclei where their structure is dominated by gluons. Moreover, polarized beams in the EIC will give unprecedented access to the spatial and spin structure of the proton, neutron, and light ions. The studies leading to this document were commissioned and organized by the EIC User Group with the objective of advancing the state and detail of the physics program and developing detector concepts that meet the emerging requirements in preparation for the realization of the EIC. The effort aims to provide the basis for further development of concepts for experimental equipment best suited for the science needs, including the importance of two complementary detectors and interaction regions. This report consists of three volumes. Volume I is an executive summary of our findings and developed concepts. In Volume II we describe studies of a wide range of physics measurements and the emerging requirements on detector acceptance and performance. Volume III discusses general-purpose detector concepts and the underlying technologies to meet the physics requirements. These considerations will form the basis for a world-class experimental program that aims to increase our understanding of the fundamental structure of all visible matter.
Published: 2022

2. Snowmass 2021 whitepaper: Proton structure at the precision frontier

Author: Amoroso, S., Apyan, A., Armesto, N., Ball, R. D., Bertone, V., Bissolotti, C., Bluemlein, J., Boughezal, R., Bozzi, G., Britzger, D., Buckley, A., Candido, A., Carrazza, S., Celiberto, F. G., Cerci, S., Chachamis, G., Cooper-Sarkar, A. M., Courtoy, A., Cridge, T., Cruz-Martinez, J. M., Giuli, F., Guzzi, M., Gwenlan, C., Harland-Lang, L. A., Hekhorn, F., Hobbs, T. J., Hoeche, S., Huss, A., Huston, J., Jalilian-Marian, J., Klein, M., Krintiras, G. K., Loizides, C., Lin, H. -W., Magni, G., Malaescu, B., Mistlberger, B., Moch, S., Nadolsky, P. M., Nocera, E. R., Olness, F. I., Petriello, F., Pires, J., Rabbertz, K., Rojo, J., Schnell, G., Schwan, C., Siodmok, A., Soper, D. E., Sutton, M., Thorne, R. S., Ubiali, M., Vita, G., Weber, J. H., Xie, K., Yuan, C. -P., and Zhou, B.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract: An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for the next generation of high-energy experiments. This whitepaper summarizes the status and future prospects for determination of high-precision PDFs applicable in a wide range of energies and experiments, in particular in precision tests of the Standard Model and in new physics searches at the high-luminosity Large Hadron Collider and Electron-Ion Collider. We discuss the envisioned advancements in experimental measurements, QCD theory, global analysis methodology, and computing that are necessary to bring unpolarized PDFs in the nucleon to the N2LO and N3LO accuracy in the QCD coupling strength. Special attention is given to the new tasks that emerge in the era of the precision PDF analysis, such as those focusing on the robust control of systematic factors both in experimental measurements and theoretical computations. Various synergies between experimental and theoretical studies of the hadron structure are explored, including opportunities for studying PDFs for nuclear and meson targets, PDFs with electroweak contributions or dependence on the transverse momentum, for incisive comparisons between phenomenological models for the PDFs and computations on discrete lattice, and for cross-fertilization with machine learning/AI approaches. [Submitted to the US Community Study on the Future of Particle Physics (Snowmass 2021).], Comment: 83 pages, 27 figures, contribution to Snowmass 2021; v.3: journal version
Published: 2022
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3. An Experiment for Electron-Hadron Scattering at the LHC

Author: André, K. D. J., Bella, L. Aperio, Armesto, N., Bogacz, S. A., Britzger, D., Brüning, O. S., D'Onofrio, M., Ferreiro, E. G., Fischer, O., Gwenlan, C., Holzer, B. J., Klein, M., Klein, U., Kocak, F., Kostka, P., Kumar, M., Mellado, B., Milhano, J. G., Newman, P. R., Piotrzkowski, K., Polini, A., Ruan, X., Russenschuk, S., Schwanenberger, C., Vilella-Figueras, E., and Yamazaki, Y.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment
Abstract: Novel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron ($eh$) 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 $eh$ and $hh$ collisions while other experiments would stay on $hh$ 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 $eh$ and $hh$ 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. C
Published: 2022
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4. Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report

Author: Khalek, R. Abdul, Accardi, A., Adam, J., Adamiak, D., Akers, W., Albaladejo, M., Al-bataineh, A., Alexeev, M. G., Ameli, F., Antonioli, P., Armesto, N., Armstrong, W. R., Arratia, M., Arrington, J., Asaturyan, A., Asai, M., Aschenauer, E. C., Aune, S., Avagyan, H., Gayoso, C. Ayerbe, Azmoun, B., Bacchetta, A., Baker, M. D., Barbosa, F., Barion, L., Barish, K. N., Barry, P. C., Battaglieri, M., Bazilevsky, A., Behera, N. K., Benmokhtar, F., Berdnikov, V. V., Bernauer, J. C., Bertone, V., Bhattacharya, S., Bissolotti, C., Boer, D., Boglione, M., Bondì, M., Boora, P., Borsa, I., Bossù, F., Bozzi, G., Brandenburg, J. D., Brei, N., Bressan, A., Brooks, W. K., Bufalino, S., Bukhari, M. H. S., Burkert, V., Buttimore, N. H., Camsonne, A., Celentano, A., Celiberto, F. G., Chang, W., Chatterjee, C., Chen, K., Chetry, T., Chiarusi, T., Chien, Y. -T., Chiosso, M., Chu, X., Chudakov, E., Cicala, G., Cisbani, E., Cloet, I. C., Cocuzza, C., Cole, P. L., Colella, D., Collins II, J. L., Constantinou, M., Contalbrigo, M., Contin, G., Corliss, R., Cosyn, W., Courtoy, A., Crafts, J., Cruz-Torres, R., Cuevas, R. C., D'Alesio, U., Torre, S. Dalla, Das, D., Dasgupta, S. S., Da Silva, C., Deconinck, W., Defurne, M., DeGraw, W., Dehmelt, K., Del Dotto, A., Delcarro, F., Deshpande, A., Detmold, W., De Vita, R., Diefenthaler, M., Dilks, C., Dixit, D. U., Dulat, S., Dumitru, A., Dupré, R., Durham, J. M., Echevarria, M. G., Fassi, L. El, Elia, D., Ent, R., Esha, R., Ethier, J. J., Evdokimov, O., Eyser, K. O., Fanelli, C., Fatemi, R., Fazio, S., Fernandez-Ramirez, C., Finger, M., Finger Jr., M., Fitzgerald, D., Flore, C., Frederico, T., Friščić, I., Fucini, S., Furletov, S., Furletova, Y., Gal, C., Gamberg, L., Gao, H., Garg, P., Gaskell, D., Gates, K., Ducati, M. B. Gay, Gericke, M., da Silveira, G. Gil, Girod, F. -X., Glazier, D. I., Gnanvo, K., Goncalves, V. P., Gonella, L., Hernandez, J. O. Gonzalez, Goto, Y., Grancagnolo, F., Greiner, L. C., Guryn, W., Guzey, V., Hatta, Y., Hattawy, M., Hauenstein, F., He, X., Hemmick, T. K., Hen, O., Heyes, G., Higinbotham, D. W., Blin, A. N. Hiller, Hobbs, T. J., Hohlmann, M., Horn, T., Hou, T. -J., Huang, J., Huang, Q., Huber, G. M., Hyde, C. E., Iakovidis, G., Ilieva, Y., Jacak, B. V., Jacobs, P. M., Jadhav, M., Janoska, Z., Jentsch, A., Jezo, T., Jing, X., Jones, P. G., Joo, K., Joosten, S., Kafka, V., Kalantarians, N., Kalicy, G., Kang, D., Kang, Z. B., Kauder, K., Kay, S. J. D., Keppel, C. E., Kim, J., Kiselev, A., Klasen, M., Klein, S., Klest, H. T., Korchak, O., Kostina, A., Kotko, P., Kovchegov, Y. V., Krelina, M., Kuleshov, S., Kumano, S., Kumar, K. S., Kumar, R., Kumar, L., Kumerički, K., Kusina, A., Kutak, K., Lai, Y. S., Lalwani, K., Lappi, T., Lauret, J., Lavinsky, M., Lawrence, D., Lednicky, D., Lee, C., Lee, K., Lee, S. H., Levorato, S., Li, H., Li, S., Li, W., Li, X., Li, W. B., Ligonzo, T., Liu, H., Liu, M. X., Liu, X., Liuti, S., Liyanage, N., Lorcé, C., Lu, Z., Lucero, G., Lukow, N. S., Lunghi, E., Majka, R., Makris, Y., Mandjavidze, I., Mantry, S., Mäntysaari, H., Marhauser, F., Markowitz, P., Marsicano, L., Mastroserio, A., Mathieu, V., Mehtar-Tani, Y., Melnitchouk, W., Mendez, L., Metz, A., Meziani, Z. -E., Mezrag, C., Mihovilovič, M., Milner, R., Mirazita, M., Mkrtchyan, H., Mkrtchyan, A., Mochalov, V., Moiseev, V., Mondal, M. M., Morreale, A., Morrison, D., Motyka, L., Moutarde, H., Camacho, C. Muñoz, Murgia, F., Murray, M. J., Musico, P., Nadel-Turonski, P., Nadolsky, P. M., Nam, J., Newman, P. R., Neyret, D., Nguyen, D., Nocera, E. R., Noferini, F., Noto, F., Nunes, A. S., Okorokov, V. A., Olness, F., Osborn, J. D., Page, B. S., Park, S., Parker, A., Paschke, K., Pasquini, B., Paukkunen, H., Paul, S., Pecar, C., Pegg, I. L., Pellegrino, C., Peng, C., Pentchev, L., Perrino, R., Petriello, F., Petti, R., Pilloni, A., Pinkenburg, C., Pire, B., Pisano, C., Pitonyak, D., Poblaguev, A. A., Polakovic, T., Posik, M., Potekhin, M., Preghenella, R., Preins, S., Prokudin, A., Pujahari, P., Purschke, M. L., Pybus, J. R., Radici, M., Rajput-Ghoshal, R., Reimer, P. E., Rinaldi, M., Ringer, F., Roberts, C. D., Rodini, S., Rojo, J., Romanov, D., Rossi, P., Santopinto, E., Sarsour, M., Sassot, R., Sato, N., Schenke, B., Schmidke, W. B., Schmidt, I., Schmidt, A., Schmookler, B., Schnell, G., Schweitzer, P., Schwiening, J., Scimemi, I., Scopetta, S., Segovia, J., Seidl, R., Sekula, S., Semenov-Tian-Shanskiy, K., Shao, D. Y., Sherrill, N., Sichtermann, E., Siddikov, M., Signori, A., Singh, B. K., Širca, S., Slifer, K., Slominski, W., Sokhan, D., Sondheim, W. E., Song, Y., Soto, O., Spiesberger, H., Stasto, A. M., Stepanov, P., Sterman, G., Stevens, J. R., Stewart, I. W., Strakovsky, I., Strikman, M., Sturm, M., Stutzman, M. L., Sullivan, M., Surrow, B., Svihra, P., Syritsyn, S., Szczepaniak, A., Sznajder, P., Szumila-Vance, H., Szymanowski, L., Tadepalli, A. S., Takaki, J. D. Tapia, Tassielli, G. F., Terry, J., Tessarotto, F., Tezgin, K., Tomasek, L., Acosta, F. Torales, Tribedy, P., Tricoli, A., Triloki, Tripathi, S., Trotta, R. L., Tsai, O. D., Tu, Z., Tuvè, C., Ullrich, T., Ungaro, M., Urciuoli, G. M., Valentini, A., Vancura, P., Vandenbroucke, M., Van Hulse, C., Varner, G., Venugopalan, R., Vitev, I., Vladimirov, A., Volpe, G., Vossen, A., Voutier, E., Wagner, J., Wallon, S., Wang, H., Wang, Q., Wang, X., Wei, S. Y., Weiss, C., Wenaus, T., Wennlöf, H., Wickramaarachchi, N., Wikramanayake, A., Winney, D., Wong, C. P., Woody, C., Xia, L., Xiao, B. W., Xie, J., Xing, H., Xu, Q. H., Zhang, J., Zhang, S., Zhang, Z., Zhao, Z. W., Zhao, Y. X., Zheng, L., Zhou, Y., and Zurita, P.
Subjects: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory
Abstract: This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The EIC will be a powerful new high-luminosity facility in the United States with the capability to collide high-energy electron beams with high-energy proton and ion beams, providing access to those regions in the nucleon and nuclei where their structure is dominated by gluons. Moreover, polarized beams in the EIC will give unprecedented access to the spatial and spin structure of the proton, neutron, and light ions. The studies leading to this document were commissioned and organized by the EIC User Group with the objective of advancing the state and detail of the physics program and developing detector concepts that meet the emerging requirements in preparation for the realization of the EIC. The effort aims to provide the basis for further development of concepts for experimental equipment best suited for the science needs, including the importance of two complementary detectors and interaction regions. This report consists of three volumes. Volume I is an executive summary of our findings and developed concepts. In Volume II we describe studies of a wide range of physics measurements and the emerging requirements on detector acceptance and performance. Volume III discusses general-purpose detector concepts and the underlying technologies to meet the physics requirements. These considerations will form the basis for a world-class experimental program that aims to increase our understanding of the fundamental structure of all visible matter, Comment: 902 pages, 415 authors, 151 institutions
Published: 2021
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5. The Large Hadron-Electron Collider at the HL-LHC

Author: Agostini, P., Aksakal, H., Alekhin, S., Allport, P. P., Andari, N., Andre, K. D. J., Angal-Kalinin, D., Antusch, S., Bella, L. Aperio, Apolinario, L., Apsimon, R., Apyan, A., Arduini, G., Ari, V., Armbruster, A., Armesto, N., Auchmann, B., Aulenbacher, K., Azuelos, G., Backovic, S., Bailey, I., Bailey, S., Balli, F., Behera, S., Behnke, O., Ben-Zvi, I., Benedikt, M., Bernauer, J., Bertolucci, S., Biswal, S. S., Blümlein, J., Bogacz, A., Bonvini, M., Boonekamp, M., Bordry, F., Boroun, G. R., Bottura, L., Bousson, S., Bouzas, A. O., Bracco, C., Bracinik, J., Britzger, D., Brodsky, S. J., Bruni, C., Brüning, O., Burkhardt, H., Cakir, O., Calaga, R., Caldwell, A., Calıskan, A., Camarda, S., Catalan-Lasheras, N. C., Cassou, K., Cepila, J., Cetinkaya, V., Chetvertkova, V., Cole, B., Coleppa, B., Cooper-Sarkar, A., Cormier, E., Cornell, A. S., Corsini, R., Cruz-Alaniz, E., Currie, J., Curtin, D., D'Onofrio, M., Dainton, J., Daly, E., Das, A., Das, S. P., Dassa, L., de Blas, J., Rose, L. Delle, Denizli, H., Deshpande, K. S., Douglas, D., Duarte, L., Dupraz, K., Dutta, S., Efremov, A. V., Eichhorn, R., Eskola, K. J., Ferreiro, E. G., Fischer, O., Flores-Sánchez, O., Forte, S., Gaddi, A., Gao, J., Gehrmann, T., Ridder, A. Gehrmann-De, Gerigk, F., Gilbert, A., Giuli, F., Glazov, A., Glover, N., Godbole, R. M., Goddard, B., Gonçalves, V., Gonzalez-Sprinberg, G. A., Goyal, A., Grames, J., Granados, E., Grassellino, A., Gunaydin, Y. O., Guo, Y. C., Guzey, V., Gwenlan, C., Hammad, A., Han, C. C., Harland-Lang, L., Haug, F., Hautmann, F., Hayden, D., Hessler, J., Helenius, I., Henry, J., Hernandez-Sanchez, J., Hesari, H., Hobbs, T. J., Hod, N., Hoffstaetter, G. H., Holzer, B., Honorato, C. G., Hounsell, B., Hu, N., Hug, F., Huss, A., Hutton, A., Islam, R., Iwamoto, S., Jana, S., Jansova, M., Jensen, E., Jones, T., Jowett, J. M., Kaabi, W., Kado, M., Kalinin, D. A., Karadeniz, H., Kawaguchi, S., Kaya, U., Khalek, R. A., Khanpour, H., Kilic, A., Klein, M., Klein, U., Kluth, S., Köksal, M., Kocak, F., Korostelev, M., Kostka, P., Krelina, M., Kretzschmar, J., Kuday, S., Kulipanov, G., Kumar, M., Kuze, M., Lappi, T., Larios, F., Latina, A., Laycock, P., Lei, G., Levitchev, E., Levonian, S., Levy, A., Li, R., Li, X., Liang, H., Litvinenko, V., Liu, M., Liu, T., Liu, W., Liu, Y., Liuti, S., Lobodzinska, E., Longuevergne, D., Luo, X., Ma, W., Machado, M., Mandal, S., Mäntysaari, H., Marhauser, F., Marquet, C., Martens, A., Martin, R., Marzani, S., McFayden, J., Mcintosh, P., Mellado, B., Meot, F., Milanese, A., Milhano, J. G., Militsyn, B., Mitra, M., Moch, S., Najafabadi, M. Mohammadi, Mondal, S., Moretti, S., Morgan, T., Morreale, A., Nadolsky, P., Navarra, F., Nergiz, Z., Newman, P., Niehues, J., Nissen, E. A., Nowakowski, M., Okada, N., Olivier, G., Olness, F., Olry, G., Osborne, J. A., Ozansoy, A., Pan, R., Parker, B., Patra, M., Paukkunen, H., Peinaud, Y., Pellegrini, D., Perez-Segurana, G., Perini, D., Perrot, L., Pietralla, N., Pilicer, E., Pire, B., Pires, J., Placakyte, R., Poelker, M., Polifka, R., Polini, A., Poulose, P., Pownall, G., Pupkov, Y. A., Queiroz, F. S., Rabbertz, K., Radescu, V., Rahaman, R., Rai, S. K., Raicevic, N., Ratoff, P., Rashed, A., Raut, D., Raychaudhuri, S., Repond, J., Rezaeian, A. H., Rimmer, R., Rinolfi, L., Rojo, J., Rosado, A., Ruan, X., Russenschuck, S., Sahin, M., Salgado, C. A., Sampayo, O. A., Satendra, K., Satyanarayan, N., Schenke, B., Schirm, K., Schopper, H., Schott, M., Schulte, D., Schwanenberger, C., Sekine, T., Senol, A., Seryi, A., Setiniyaz, S., Shang, L., Shen, X., Shipman, N., Sinha, N., Slominski, W., Smith, S., Solans, C., Song, M., Spiesberger, H., Stanyard, J., Starostenko, A., Stasto, A., Stocchi, A., Strikman, M., Stuart, M. J., Sultansoy, S., Sun, H., Sutton, M., Szymanowski, L., Tapan, I., Tapia-Takaki, D., Tanaka, M., Tang, Y., Tasci, A. T., Ten-Kate, A. T., Thonet, P., Tomas-Garcia, R., Tommasini, D., Trbojevic, D., Trott, M., Tsurin, I., Tudora, A., Cakir, I. Turk, Tywoniuk, K., Vallerand, C., Valloni, A., Verney, D., Vilella, E., Walker, D., Wallon, S., Wang, B., Wang, K., Wang, X., Wang, Z. S., Wei, H., Welsch, C., Willering, G., Williams, P. H., Wollmann, D., Xiaohao, C., Xu, T., Yaguna, C. E., Yamaguchi, Y., Yamazaki, Y., Yang, H., Yilmaz, A., Yock, P., Yue, C. X., Zadeh, S. G., Zenaiev, O., Zhang, C., Zhang, J., Zhang, R., Zhang, Z., Zhu, G., Zhu, S., Zimmermann, F., Zomer, F., Zurita, J., and Zurita, P.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory
Abstract: The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High Luminosity--Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron-proton and proton-proton operation. This report represents an update of the Conceptual Design Report (CDR) of the LHeC, published in 2012. It comprises new results on parton structure of the proton and heavier nuclei, QCD dynamics, electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics in extending the accessible kinematic range in lepton-nucleus scattering by several orders of magnitude. Due to enhanced luminosity, large energy and the cleanliness of the hadronic final states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, the report represents a detailed updated design of the energy recovery electron linac (ERL) including new lattice, magnet, superconducting radio frequency technology and further components. Challenges of energy recovery are described and the lower energy, high current, 3-turn ERL facility, PERLE at Orsay, is presented which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution and calibration goals which arise from the Higgs and parton density function physics programmes. The paper also presents novel results on the Future Circular Collider in electron-hadron mode, FCC-eh, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies., Comment: 373 pages, many figures, to be published by J. Phys. G
Published: 2020
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6. Future heavy-ion facilities: FCC-AA

Author: Dainese, A., Apolinario, L., Armesto, N., d'Enterria, D., Jowett, J. M., Lansberg, J. -P., Milhano, J. G., Salgado, C. A., Schaumann, M., van Leuween, M., and Wiedemann, U. A.
Subjects: High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory
Abstract: The operation of the Future Circular Collider (FCC) with heavy ions would provide Pb-Pb and p-Pb collisions at sqrt{s_NN}= 39 and 63 TeV, respectively, per nucleon-nucleon collision, with projected per-month integrated luminosities of up to 110/nb and 29/pb, respectively. This document outlines the unique and broad physics opportunities with heavy ions at the energy frontier opened by FCC., Comment: 14 pages, 8 figures, Proceedings of the Hard Probes 2018 International Conference, largely similar to the HI contribution to the FCC CDR Volume 1 http://cds.cern.ch/record/2651294
Published: 2019

7. Future physics opportunities for high-density QCD at the LHC with heavy-ion and proton beams

Author: Citron, Z., Dainese, A., Grosse-Oetringhaus, J. F., Jowett, J. M., Lee, Y. -J., Wiedemann, U. A., Winn, M., Andronic, A., Bellini, F., Bruna, E., Chapon, E., Dembinski, H., d'Enterria, D., Grabowska-Bold, I., Innocenti, G. M., Loizides, C., Mohapatra, S., Salgado, C. A., Verweij, M., Weber, M., Aichelin, J., Angerami, A., Apolinario, L., Arleo, F., Armesto, N., Arnaldi, R., Arslandok, M., Azzi, P., Bailhache, R., Bass, S. A., Bedda, C., Behera, N. K., Bellwied, R., Beraudo, A., Bi, R., Bierlich, C., Blum, K., Borissov, A., Braun-Munzinger, P., Bruce, R., Bruno, G. E., Bufalino, S., Castellanos, J. Castillo, Chatterjee, R., Chen, Y., Chen, Z., Cheshkov, C., Chujo, T., del Valle, Z. Conesa, Nuno, J. G. Contreras, Mendez, L. Cunqueiro, Dahms, T., Dang, N. P., De la Torre, H., Dobrin, A. F., Doenigus, B., Van Doremalen, L., Du, X., Dubla, A., Dumancic, M., Dyndal, M., Fabbietti, L., Ferreiro, E. G., Fionda, F., Fleuret, F., Floerchinger, S., Giacalone, G., Giammanco, A., Gossiaux, P. B., Graziani, G., Greco, V., Grelli, A., Grosa, F., Guilbaud, M., Gunji, T., Guzey, V., Hadjidakis, C., Hassani, S., He, M., Helenius, I., Huo, P., Jacobs, P. M., Janus, P., Jebramcik, M. A., Jia, J., Kalweit, A. P., Kim, H., Klasen, M., Klein, S. R., Klusek-Gawenda, M., Konyushikhin, M., Kremer, J., Krintiras, G. K., Krizek, F., Kryshen, E., Kurkela, A., Kusina, A., Lansberg, J. -P., Lea, R., van Leeuwen, M., Li, W., Margutti, J., Marin, A., Marquet, C., Blanco, J. Martin, Massacrier, L., Mastroserio, A., Maurice, E., Mayer, C., Mcginn, C., Milhano, G., Milov, A., Minissale, V., Mironov, C., Mischke, A., Mohammadi, N., Mulders, M., Murray, M., Narain, M., Di Nezza, P., Nisati, A., Noronha-Hostler, J., Ohlson, A., Okorokov, V., Olness, F., Paakkinen, P., Pappalardo, L., Park, J., Paukkunen, H., Peng, C. C., Da Costa, H. Pereira, Perepelitsa, D. V., Peresunko, D., Peters, M., Pettersson, N. E., Piano, S., Pierog, T., Pires, J., Plumari, M. PS., Prino, F., Puccio, M., Rapp, R., Redlich, K., Reygers, K., Ristea, C. L., Robbe, P., Rossi, A., Rustamov, A., Rybar, M., Schaumann, M., Schenke, B., Schienbein, I., Schoeffel, L., Selyuzhenkov, I., Sickles, A. M., Sievert, M., Silva, P., Song, T., Spousta, M., Stachel, J., Steinberg, P., Stocco, D., Strickland, M., Strikman, M., Sun, J., Takaki, D. Tapia, Tatar, K., Terrevoli, C., Timmins, A., Trogolo, S., Trzeciak, B., Trzupek, A., Ulrich, R., Uras, A., Venugopalan, R., Vitev, I., Vujanovic, G., Wang, J., Wang, T. W., Xiao, R., Xu, Y., Zampolli, C., Zanoli, H., Zhou, M., and Zhou, Y.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment, Nuclear Experiment, Nuclear Theory
Abstract: The future opportunities for high-density QCD studies with ion and proton beams at the LHC are presented. Four major scientific goals are identified: the characterisation of the macroscopic long wavelength Quark-Gluon Plasma (QGP) properties with unprecedented precision, the investigation of the microscopic parton dynamics underlying QGP properties, the development of a unified picture of particle production and QCD dynamics from small (pp) to large (nucleus--nucleus) systems, the exploration of parton densities in nuclei in a broad ($x$, $Q^2$) kinematic range and the search for the possible onset of parton saturation. In order to address these scientific goals, high-luminosity Pb-Pb and p-Pb programmes are considered as priorities for Runs 3 and 4, complemented by high-multiplicity studies in pp collisions and a short run with oxygen ions. High-luminosity runs with intermediate-mass nuclei, for example Ar or Kr, are considered as an appealing case for extending the heavy-ion programme at the LHC beyond Run 4. The potential of the High-Energy LHC to probe QCD matter with newly-available observables, at twice larger center-of-mass energies than the LHC, is investigated., Comment: 209 pages; Report from Working Group 5 of the Workshop on the Physics of the CERN HL-LHC, and Perspectives at the HE-LHC (v2: Minor updates to text and figures. Added one author.)
Published: 2018

8. FCC-hh: The Hadron Collider

Author: Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Abelleira Fernandez, J, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Alemany Fernandez, RM, Alexahin, Y, Alía, RG, Alioli, S, Alipour Tehrani, N, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
Subjects: Mathematical Sciences, Physical Sciences, Applied Physics, Fluids & Plasmas
Abstract: 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.
Published: 2019

9. HE-LHC: The High-Energy Large Hadron Collider

Author: Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Abelleira Fernandez, J, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Alemany Fernandez, RM, Alexahin, Y, Alía, RG, Alioli, S, Alipour Tehrani, N, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
Subjects: Mathematical Sciences, Physical Sciences, Applied Physics, Fluids & Plasmas
Abstract: 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.
Published: 2019

10. FCC-ee: The Lepton Collider

Author: Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Abelleira Fernandez, J, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Alemany Fernandez, RM, Alexahin, Y, Alía, RG, Alioli, S, Alipour Tehrani, N, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Sciences, Applied Physics, Fluids & Plasmas, Mathematical sciences, Physical sciences
Abstract: In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-ee) and an energy-frontier hadron collider (FCC-hh), which could, successively, be installed in the same 100 km tunnel. The scientific capabilities of the integrated FCC programme would serve the worldwide community throughout the 21st century. The FCC study also investigates an LHC energy upgrade, using FCC-hh technology. This document constitutes the second volume of the FCC Conceptual Design Report, devoted to the electron-positron collider FCC-ee. After summarizing the physics discovery opportunities, it presents the accelerator design, performance reach, a staged operation scenario, the underlying technologies, civil engineering, technical infrastructure, and an implementation plan. FCC-ee can be built with today’s technology. Most of the FCC-ee infrastructure could be reused for FCC-hh. Combining concepts from past and present lepton colliders and adding a few novel elements, the FCC-ee design promises outstandingly high luminosity. This will make the FCC-ee a unique precision instrument to study the heaviest known particles (Z, W and H bosons and the top quark), offering great direct and indirect sensitivity to new physics.
Published: 2019

11. FCC Physics Opportunities

Author: Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Fernandez, J Abelleira, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Fernandez, RM Alemany, Alexahin, Y, Alía, RG, Alioli, S, Tehrani, N Alipour, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, Ara, Apyan, Arm, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract: 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.
Published: 2019

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

Author: Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Fernandez, JA, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Fernandez, RMA, Alexahin, Y, Alía, RG, Alioli, S, Tehrani, NA, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
Subjects: Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: 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.
Published: 2019

13. Physics with ions at the Future Circular Collider

Author: d'Enterria, David, Apolinario, L., Armesto, N., Dainese, A., Jowett, J., Lansberg, J. P., Masciocchi, S., Milhano, G., Roland, C., Salgado, C. A., Schaumann, M., van Leeuwen, M., and Wiedemann, U. A.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory
Abstract: The unique physics opportunities accessible with nuclear collisions at the CERN Future Circular Collider (FCC) are summarized. Lead-lead (PbPb) and proton-lead (pPb) collisions at $\sqrt{s_{NN}}$ = 39 and 63 TeV respectively with $\mathcal{L}_{int}$ = 33 nb$^{-1}$ and 8 pb$^{-1}$ monthly integrated luminosities, will provide unprecedented experimental conditions to study quark-gluon matter at temperatures ${\cal O}$(1 GeV). The following topics are succinctly discussed: (i) charm-quark densities thrice larger than at the LHC, leading to direct heavy-quark impact in the bulk QGP properties, (ii) quarkonia, including $\Upsilon(1S)$, melting at temperatures up to five times above the QCD critical temperature, (iii) access to initial-state nuclear parton distributions (nPDF) at fractional momenta as low as $x\approx 10^{-7}$, (iv) availability of $5\cdot 10^5$ top-quark pairs per run to study the high-$x$ gluon nPDF and the energy loss properties of boosted colour-antennas, (v) study of possible Higgs boson suppression in the QGP, and (vi) high-luminosity $\gamma\gamma$ (ultraperipheral) collisions at c.m. energies up to 1 TeV., Comment: 4 pages, 6 figures. Proceedings Quark Matter'17 (Chicago, Feb. 2017). Nucl.Phys.A, to appear
Published: 2017
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14. Heavy ions at the Future Circular Collider

Author: Dainese, A., Wiedemann, U. A., Armesto, N., d'Enterria, D., Jowett, J. M., Lansberg, J. -P., Milhano, J. G., Salgado, C. A., Schaumann, M., van Leeuwen, M., Albacete, J. L., Andronic, A., Antonioli, P., Apolinario, L., Bass, S., Beraudo, A., Bilandzic, A., Borsanyi, S., Braun-Munzinger, P., Chen, Z., Mendez, L. Cunqueiro, Denicol, G. S., Eskola, K. J., Floerchinger, S., Fujii, H., Giubellino, P., Greiner, C., Grosse-Oetringhaus, J. F., Ko, C. -M., Kotko, P., Krajczar, K., Kutak, K., Laine, M., Liu, Y., Lombardo, M. P., Luzum, M., Marquet, C., Masciocchi, S., Okorokov, V., Paquet, J. -F., Paukkunen, H., Petreska, E., Pierog, T., Ploskon, M., Ratti, C., Rezaeian, A. H., Riegler, W., Rojo, J., Roland, C., Rossi, A., Salam, G. P., Sapeta, S., Schicker, R., Schmidt, C., Stachel, J., Uphoff, J., van Hameren, A., Watanabe, K., Xiao, B. -W., Yuan, F., Zaslavsky, D., Zhou, K., and Zhuang, P.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment, Nuclear Experiment, Nuclear Theory
Abstract: The Future Circular Collider (FCC) Study is aimed at assessing the physics potential and the technical feasibility of a new collider with centre-of-mass energies, in the hadron-hadron collision mode, seven times larger than the nominal LHC energies. Operating such machine with heavy ions is an option that is being considered in the accelerator design studies. It would provide, for example, Pb-Pb and p-Pb collisions at sqrt{s_NN} = 39 and 63 TeV, respectively, per nucleon-nucleon collision, with integrated luminosities above 30 nb^-1 per month for Pb-Pb. This is a report by the working group on heavy-ion physics of the FCC Study. First ideas on the physics opportunities with heavy ions at the FCC are presented, covering the physics of the Quark-Gluon Plasma, of gluon saturation, of photon-induced collisions, as well as connections with other fields of high-energy physics., Comment: 57 pages, 28 figures. This document will be part of a CERN Yellow Report on Physics at FCC-hh
Published: 2016

15. Nuclear collisions at the Future Circular Collider

Author: Armesto, N., Dainese, A., d'Enterria, D., Masciocchi, S., Roland, C., Salgado, C. A., van Leeuwen, M., and Wiedemann, U. A.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment, Nuclear Experiment, Nuclear Theory
Abstract: The Future Circular Collider is a new proposed collider at CERN with centre-of-mass energies around 100 TeV in the pp mode. Ongoing studies aim at assessing its physics potential and technical feasibility. Here we focus on updates in physics opportunities accessible in pA and AA collisions not covered in previous Quark Matter contributions, including Quark-Gluon Plasma and gluon saturation studies, novel hard probes of QCD matter, and photon-induced collisions., Comment: 4 pages, 5 figures, proceedings of Quark Matter 2015
Published: 2016
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16. ϕ-Meson production at forward rapidity in p–Pb collisions at sNN=5.02 TeV and in pp collisions at s=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The first study of ϕ-meson production in p–Pb collisions at forward and backward rapidity, at a nucleon–nucleon centre-of-mass energy sNN=5.02 TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) range 1
Published: 2017

17. The Large Hadron–Electron Collider at the HL-LHC

Author: Agostini, P, Aksakal, H, Alekhin, S, Allport, P P, Andari, N, Andre, K D J, Angal-Kalinin, D, Antusch, S, Aperio Bella, L, Apolinario, L, Apsimon, R, Apyan, A, Arduini, G, Ari, V, Armbruster, A, Armesto, N, Auchmann, B, Aulenbacher, K, Azuelos, G, Backovic, S, Bailey, I, Bailey, S, Balli, F, Behera, S, Behnke, O, Ben-Zvi, I, Benedikt, M, Bernauer, J, Bertolucci, S, Biswal, S S, Blümlein, J, Bogacz, A, Bonvini, M, Boonekamp, M, Bordry, F, Boroun, G R, Bottura, L, Bousson, S, Bouzas, A O, Bracco, C, Bracinik, J, Britzger, D, Brodsky, S J, Bruni, C, Brüning, O, Burkhardt, H, Cakir, O, Calaga, R, Caldwell, A, Calıskan, A, Camarda, S, Catalan-Lasheras, N C, Cassou, K, Cepila, J, Cetinkaya, V, Chetvertkova, V, Cole, B, Coleppa, B, Cooper-Sarkar, A, Cormier, E, Cornell, A S, Corsini, R, Cruz-Alaniz, E, Currie, J, Curtin, D, D’Onofrio, M, Dainton, J, Daly, E, Das, A, Das, S P, Dassa, L, de Blas, J, Delle Rose, L, Denizli, H, Deshpande, K S, Douglas, D, Duarte, L, Dupraz, K, Dutta, S, Efremov, A V, Eichhorn, R, Eskola, K J, Ferreiro, E G, Fischer, O, Flores-Sánchez, O, Forte, S, Gaddi, A, Gao, J, Gehrmann, T, Gehrmann-De Ridder, A, Gerigk, F, Gilbert, A, Giuli, F, Glazov, A, Glover, N, Godbole, R M, Goddard, B, Gonçalves, V, Gonzalez-Sprinberg, G A, Goyal, A, Grames, J, Granados, E, Grassellino, A, Gunaydin, Y O, Guo, Y C, Guzey, V, Gwenlan, C, Hammad, A, Han, C C, Harland-Lang, L, Haug, F, Hautmann, F, Hayden, D, Hessler, J, Helenius, I, Henry, J, Hernandez-Sanchez, J, Hesari, H, Hobbs, T J, Hod, N, Hoffstaetter, G H, Holzer, B, Honorato, C G, Hounsell, B, Hu, N, Hug, F, Huss, A, Hutton, A, Islam, R, Iwamoto, S, Jana, S, Jansova, M, Jensen, E, Jones, T, Jowett, J M, Kaabi, W, Kado, M, Kalinin, D A, Karadeniz, H, Kawaguchi, S, Kaya, U, Khalek, R A, Khanpour, H, Kilic, A, Klein, M, Klein, U, Kluth, S, Köksal, M, Kocak, F, Korostelev, M, Kostka, P, Krelina, M, Kretzschmar, J, Kuday, S, Kulipanov, G, Kumar, M, Kuze, M, Lappi, T, Larios, F, Latina, A, Laycock, P, Lei, G, Levitchev, E, Levonian, S, Levy, A, Li, R, Li, X, Liang, H, Litvinenko, V, Liu, M, Liu, T, Liu, W, Liu, Y, Liuti, S, Lobodzinska, E, Longuevergne, D, Luo, X, Ma, W, Machado, M, Mandal, S, Mäntysaari, H, Marhauser, F, Marquet, C, Martens, A, Martin, R, Marzani, S, McFayden, J, Mcintosh, P, Mellado, B, Meot, F, Milanese, A, Milhano, J G, Militsyn, B, Mitra, M, Moch, S, Mohammadi Najafabadi, M, Mondal, S, Moretti, S, Morgan, T, Morreale, A, Nadolsky, P, Navarra, F, Nergiz, Z, Newman, P, Niehues, J, Nissen, E A, Nowakowski, M, Okada, N, Olivier, G, Olness, F, Olry, G, Osborne, J A, Ozansoy, A, Pan, R, Parker, B, Patra, M, Paukkunen, H, Peinaud, Y, Pellegrini, D, Perez-Segurana, G, Perini, D, Perrot, L, Pietralla, N, Pilicer, E, Pire, B, Pires, J, Placakyte, R, Poelker, M, Polifka, R, Polini, A, Poulose, P, Pownall, G, Pupkov, Y A, Queiroz, F S, Rabbertz, K, Radescu, V, Rahaman, R, Rai, S K, Raicevic, N, Ratoff, P, Rashed, A, Raut, D, Raychaudhuri, S, Repond, J, Rezaeian, A H, Rimmer, R, Rinolfi, L, Rojo, J, Rosado, A, Ruan, X, Russenschuck, S, Sahin, M, Salgado, C A, Sampayo, O A, Satendra, K, Satyanarayan, N, Schenke, B, Schirm, K, Schopper, H, Schott, M, Schulte, D, Schwanenberger, C, Sekine, T, Senol, A, Seryi, A, Setiniyaz, S, Shang, L, Shen, X, Shipman, N, Sinha, N, Slominski, W, Smith, S, Solans, C, Song, M, Spiesberger, H, Stanyard, J, Starostenko, A, Stasto, A, Stocchi, A, Strikman, M, Stuart, M J, Sultansoy, S, Sun, H, Sutton, M, Szymanowski, L, Tapan, I, Tapia-Takaki, D, Tanaka, M, Tang, Y, Tasci, A T, Ten-Kate, A T, Thonet, P, Tomas-Garcia, R, Tommasini, D, Trbojevic, D, Trott, M, Tsurin, I, Tudora, A, Turk Cakir, I, Tywoniuk, K, Vallerand, C, Valloni, A, Verney, D, Vilella, E, Walker, D, Wallon, S, Wang, B, Wang, K, Wang, X, Wang, Z S, Wei, H, Welsch, C, Willering, G, Williams, P H, Wollmann, D, Xiaohao, C, Xu, T, Yaguna, C E, Yamaguchi, Y, Yamazaki, Y, Yang, H, Yilmaz, A, Yock, P, Yue, C X, Zadeh, S G, Zenaiev, O, Zhang, C, Zhang, J, Zhang, R, Zhang, Z, Zhu, G, Zhu, S, Zimmermann, F, Zomer, F, Zurita, J, Zurita, P, Agostini, P, Aksakal, H, Alekhin, S, Allport, P P, Andari, N, Andre, K D J, Angal-Kalinin, D, Antusch, S, Aperio Bella, L, Apolinario, L, Apsimon, R, Apyan, A, Arduini, G, Ari, V, Armbruster, A, Armesto, N, Auchmann, B, Aulenbacher, K, Azuelos, G, Backovic, S, Bailey, I, Bailey, S, Balli, F, Behera, S, Behnke, O, Ben-Zvi, I, Benedikt, M, Bernauer, J, Bertolucci, S, Biswal, S S, Blümlein, J, Bogacz, A, Bonvini, M, Boonekamp, M, Bordry, F, Boroun, G R, Bottura, L, Bousson, S, Bouzas, A O, Bracco, C, Bracinik, J, Britzger, D, Brodsky, S J, Bruni, C, Brüning, O, Burkhardt, H, Cakir, O, Calaga, R, Caldwell, A, Calıskan, A, Camarda, S, Catalan-Lasheras, N C, Cassou, K, Cepila, J, Cetinkaya, V, Chetvertkova, V, Cole, B, Coleppa, B, Cooper-Sarkar, A, Cormier, E, Cornell, A S, Corsini, R, Cruz-Alaniz, E, Currie, J, Curtin, D, D’Onofrio, M, Dainton, J, Daly, E, Das, A, Das, S P, Dassa, L, de Blas, J, Delle Rose, L, Denizli, H, Deshpande, K S, Douglas, D, Duarte, L, Dupraz, K, Dutta, S, Efremov, A V, Eichhorn, R, Eskola, K J, Ferreiro, E G, Fischer, O, Flores-Sánchez, O, Forte, S, Gaddi, A, Gao, J, Gehrmann, T, Gehrmann-De Ridder, A, Gerigk, F, Gilbert, A, Giuli, F, Glazov, A, Glover, N, Godbole, R M, Goddard, B, Gonçalves, V, Gonzalez-Sprinberg, G A, Goyal, A, Grames, J, Granados, E, Grassellino, A, Gunaydin, Y O, Guo, Y C, Guzey, V, Gwenlan, C, Hammad, A, Han, C C, Harland-Lang, L, Haug, F, Hautmann, F, Hayden, D, Hessler, J, Helenius, I, Henry, J, Hernandez-Sanchez, J, Hesari, H, Hobbs, T J, Hod, N, Hoffstaetter, G H, Holzer, B, Honorato, C G, Hounsell, B, Hu, N, Hug, F, Huss, A, Hutton, A, Islam, R, Iwamoto, S, Jana, S, Jansova, M, Jensen, E, Jones, T, Jowett, J M, Kaabi, W, Kado, M, Kalinin, D A, Karadeniz, H, Kawaguchi, S, Kaya, U, Khalek, R A, Khanpour, H, Kilic, A, Klein, M, Klein, U, Kluth, S, Köksal, M, Kocak, F, Korostelev, M, Kostka, P, Krelina, M, Kretzschmar, J, Kuday, S, Kulipanov, G, Kumar, M, Kuze, M, Lappi, T, Larios, F, Latina, A, Laycock, P, Lei, G, Levitchev, E, Levonian, S, Levy, A, Li, R, Li, X, Liang, H, Litvinenko, V, Liu, M, Liu, T, Liu, W, Liu, Y, Liuti, S, Lobodzinska, E, Longuevergne, D, Luo, X, Ma, W, Machado, M, Mandal, S, Mäntysaari, H, Marhauser, F, Marquet, C, Martens, A, Martin, R, Marzani, S, McFayden, J, Mcintosh, P, Mellado, B, Meot, F, Milanese, A, Milhano, J G, Militsyn, B, Mitra, M, Moch, S, Mohammadi Najafabadi, M, Mondal, S, Moretti, S, Morgan, T, Morreale, A, Nadolsky, P, Navarra, F, Nergiz, Z, Newman, P, Niehues, J, Nissen, E A, Nowakowski, M, Okada, N, Olivier, G, Olness, F, Olry, G, Osborne, J A, Ozansoy, A, Pan, R, Parker, B, Patra, M, Paukkunen, H, Peinaud, Y, Pellegrini, D, Perez-Segurana, G, Perini, D, Perrot, L, Pietralla, N, Pilicer, E, Pire, B, Pires, J, Placakyte, R, Poelker, M, Polifka, R, Polini, A, Poulose, P, Pownall, G, Pupkov, Y A, Queiroz, F S, Rabbertz, K, Radescu, V, Rahaman, R, Rai, S K, Raicevic, N, Ratoff, P, Rashed, A, Raut, D, Raychaudhuri, S, Repond, J, Rezaeian, A H, Rimmer, R, Rinolfi, L, Rojo, J, Rosado, A, Ruan, X, Russenschuck, S, Sahin, M, Salgado, C A, Sampayo, O A, Satendra, K, Satyanarayan, N, Schenke, B, Schirm, K, Schopper, H, Schott, M, Schulte, D, Schwanenberger, C, Sekine, T, Senol, A, Seryi, A, Setiniyaz, S, Shang, L, Shen, X, Shipman, N, Sinha, N, Slominski, W, Smith, S, Solans, C, Song, M, Spiesberger, H, Stanyard, J, Starostenko, A, Stasto, A, Stocchi, A, Strikman, M, Stuart, M J, Sultansoy, S, Sun, H, Sutton, M, Szymanowski, L, Tapan, I, Tapia-Takaki, D, Tanaka, M, Tang, Y, Tasci, A T, Ten-Kate, A T, Thonet, P, Tomas-Garcia, R, Tommasini, D, Trbojevic, D, Trott, M, Tsurin, I, Tudora, A, Turk Cakir, I, Tywoniuk, K, Vallerand, C, Valloni, A, Verney, D, Vilella, E, Walker, D, Wallon, S, Wang, B, Wang, K, Wang, X, Wang, Z S, Wei, H, Welsch, C, Willering, G, Williams, P H, Wollmann, D, Xiaohao, C, Xu, T, Yaguna, C E, Yamaguchi, Y, Yamazaki, Y, Yang, H, Yilmaz, A, Yock, P, Yue, C X, Zadeh, S G, Zenaiev, O, Zhang, C, Zhang, J, Zhang, R, Zhang, Z, Zhu, G, Zhu, S, Zimmermann, F, Zomer, F, Zurita, J, and Zurita, P
Abstract: The Large Hadron–Electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy-recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High-Luminosity Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron–proton and proton–proton operations. This report represents an update to the LHeC’s conceptual design report (CDR), published in 2012. It comprises new results on the parton structure of the proton and heavier nuclei, QCD dynamics, and electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics by extending the accessible kinematic range of lepton–nucleus scattering by several orders of magnitude. Due to its enhanced luminosity and large energy and the cleanliness of the final hadronic states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, this report contains a detailed updated design for the energy-recovery electron linac (ERL), including a new lattice, magnet and superconducting radio-frequency technology, and further components. Challenges of energy recovery are described, and the lower-energy, high-current, three-turn ERL facility, PERLE at Orsay, is presented, which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution, and calibration goals that arise from the Higgs and parton-density-function physics programmes. This paper also presents novel results for the Future Circular Collider in electron–hadron (FCC-eh) mode, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies.
Published: 2024

18. Heavy-ion collisions at the Large Hadron Collider: a review of the results from Run 1

Author: Armesto, N. and Scomparin, E.
Subjects: Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Theory
Abstract: We present an overview of the results obtained in pPb and PbPb collisions at the Large Hadron Collider during Run 1. We first discuss the results for global characteristics: cross sections, hadron multiplicities, azimuthal asymmetries, correlations at low transverse momentum, hadrochemistry, and femtoscopy. We then review hard and electromagnetic probes: particles with high transverse momentum, jets, heavy quarks, quarkonium, electroweak bosons and high transverse momentum photons, low transverse momentum photons and dileptons, and ultraperipheral collisions. We mainly focus on the experimental results, and present very briefly the main current theoretical explanations., Comment: 33 pages, 29 figures
Published: 2015
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19. Hanbury-Brown-Twiss measurements at large rapidity separations, or can we measure the proton radius in p-A collisions?

Author: Altinoluk, T., Armesto, N., Beuf, G., Kovner, A., and Lublinsky, M.
Subjects: High Energy Physics - Phenomenology, Nuclear Theory
Abstract: We point out that current calculations of inclusive two-particle correlations in p-A collisions based on the Color Glass Condensate approach exhibit a contribution from Hanbury-Brown-Twiss correlations. These HBT correlations are quite distinct from the standard ones, in that they are apparent for particles widely separated in rapidity. The transverse size of the emitter which is reflected in these correlations is the gluonic size of the proton. This raises an interesting possibility of measuring the proton size directly by the HBT effect of particle pairs produced in p-A collisions., Comment: 11 pages, 3 eps figures; v2: comments, discussions, references and acknowledgements added, conclusions unchanged, final version
Published: 2015
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20. Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all

Author: Accardi, A, Albacete, JL, Anselmino, M, Armesto, N, Aschenauer, EC, Bacchetta, A, Boer, D, Brooks, WK, Burton, T, Chang, NB, Deng, WT, Deshpande, A, Diehl, M, Dumitru, A, Dupré, R, Ent, R, Fazio, S, Gao, H, Guzey, V, Hakobyan, H, Hao, Y, Hasch, D, Holt, R, Horn, T, Huang, M, Hutton, A, Hyde, C, Jalilian-Marian, J, Klein, S, Kopeliovich, B, Kovchegov, Y, Kumar, K, Kumerički, K, Lamont, MAC, Lappi, T, Lee, JH, Lee, Y, Levin, EM, Lin, FL, Litvinenko, V, Ludlam, TW, Marquet, C, Meziani, ZE, McKeown, R, Metz, A, Milner, R, Morozov, VS, Mueller, AH, Müller, B, Müller, D, Nadel-Turonski, P, Paukkunen, H, Prokudin, A, Ptitsyn, V, Qian, X, Qiu, JW, Ramsey-Musolf, M, Roser, T, Sabatié, F, Sassot, R, Schnell, G, Schweitzer, P, Sichtermann, E, Stratmann, M, Strikman, M, Sullivan, M, Taneja, S, Toll, T, Trbojevic, D, Ullrich, T, Venugopalan, R, Vigdor, S, Vogelsang, W, Weiss, C, Xiao, BW, Yuan, F, Zhang, YH, and Zheng, L
Subjects: nucl-ex, hep-ex, hep-ph, nucl-th, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: This White Paper presents the science case of an Electron-Ion Collider (EIC), focused on the structure and interactions of gluon-dominated matter, with the intent to articulate it to the broader nuclear science community. It was commissioned by the managements of Brookhaven National Laboratory (BNL) and Thomas Jefferson National Accelerator Facility (JLab) with the objective of presenting a summary of scientific opportunities and goals of the EIC as a follow-up to the 2007 NSAC Long Range plan. This document is a culmination of a community-wide effort in nuclear science following a series of workshops on EIC physics over the past decades and, in particular, the focused ten-week program on “Gluons and quark sea at high energies” at the Institute for Nuclear Theory in Fall 2010. It contains a brief description of a few golden physics measurements along with accelerator and detector concepts required to achieve them. It has been benefited profoundly from inputs by the users’ communities of BNL and JLab. This White Paper offers the promise to propel the QCD science program in the US, established with the CEBAF accelerator at JLab and the RHIC collider at BNL, to the next QCD frontier.
Published: 2016

21. Heavy ions at the Future Circular Collider

Author: Dainese, A, Wiedemann, UA, Armesto, N, d'Enterria, D, Jowett, JM, Lansberg, J-P, Milhano, JG, Salgado, CA, Schaumann, M, Leeuwen, M van, Albacete, JL, Andronic, A, Antonioli, P, Apolinario, L, Bass, S, Beraudo, A, Bilandzic, A, Borsanyi, S, Braun-Munzinger, P, Chen, Z, Mendez, L Cunqueiro, Denicol, GS, Eskola, KJ, Floerchinger, S, Fujii, H, Giubellino, P, Greiner, C, Grosse-Oetringhaus, JF, Ko, C-M, Kotko, P, Krajczar, K, Kutak, K, Laine, M, Liu, Y, Lombardo, MP, Luzum, M, Marquet, C, Masciocchi, S, Okorokov, V, Paquet, J-F, Paukkunen, H, Petreska, E, Pierog, T, Ploskon, M, Ratti, C, Rezaeian, AH, Riegler, W, Rojo, J, Roland, C, Rossi, A, Salam, GP, Sapeta, S, Schicker, R, Schmidt, C, Stachel, J, Uphoff, J, Hameren, A van, Watanabe, K, Xiao, B-W, Yuan, F, Zaslavsky, D, Zhou, K, and Zhuang, P
Subjects: hep-ph, hep-ex, nucl-ex, nucl-th
Abstract: The Future Circular Collider (FCC) Study is aimed at assessing the physicspotential and the technical feasibility of a new collider with centre-of-massenergies, in the hadron-hadron collision mode, seven times larger than thenominal LHC energies. Operating such machine with heavy ions is an option thatis being considered in the accelerator design studies. It would provide, forexample, Pb-Pb and p-Pb collisions at sqrt{s_NN} = 39 and 63 TeV, respectively,per nucleon-nucleon collision, with integrated luminosities above 30 nb^-1 permonth for Pb-Pb. This is a report by the working group on heavy-ion physics ofthe FCC Study. First ideas on the physics opportunities with heavy ions at theFCC are presented, covering the physics of the Quark-Gluon Plasma, of gluonsaturation, of photon-induced collisions, as well as connections with otherfields of high-energy physics.
Published: 2016

22. Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at sNN=2.76 TeV

Author: The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Heavy Ion Experiments, Quark gluon plasma, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Nuclear and plasma physics, Particle and high energy physics
Abstract: The production of J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (pt) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average pt is presented. The J/ψ suppression, quantified with the nuclear modification factor (RAA), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.
Published: 2016

23. Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at √sNN = 2.76 TeV

Author: The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Heavy Ion Experiments, Quark gluon plasma, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The production of J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (pt) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average pt is presented. The J/ψ suppression, quantified with the nuclear modification factor (RAA), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.
Published: 2016

24. Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at s NN =2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Abstract: We report on results obtained with the event-shape engineering technique applied to Pb-Pb collisions at sNN=2.76 TeV. By selecting events in the same centrality interval, but with very different average flow, different initial-state conditions can be studied. We find the effect of the event-shape selection on the elliptic flow coefficient v2 to be almost independent of transverse momentum pT, which is as expected if this effect is attributable to fluctuations in the initial geometry of the system. Charged-hadron, -pion, -kaon, and -proton transverse momentum distributions are found to be harder in events with higher-than-average elliptic flow, indicating an interplay between radial and elliptic flow.
Published: 2016

25. Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at s NN =2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Abstract: Transverse momentum (pT) spectra of pions, kaons, and protons up to pT=20GeV/c have been measured in Pb-Pb collisions at sNN=2.76TeV using the ALICE detector for six different centrality classes covering 0%-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT≈3GeV/c in central Pb-Pb collisions that decreases for more peripheral collisions. For pT>10GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10%-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT
Published: 2016

26. 3ΛH and 3ΛH production in Pb-Pb collisions at √sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The production of the hypertriton nuclei HΛ3 and H[U+203E]Λ-3 has been measured for the first time in Pb-Pb collisions at sNN=2.76 TeV with the ALICE experiment at LHC. The pT-integrated HΛ3 yield in one unity of rapidity, dN/dy×B.R.(HΛ3→He3,π-)=(3.86±0.77(stat.)±0.68(syst.))×10-in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3=HΛ3/(He3×Λ/p) was measured to be S3=0.60±0.13(stat.)±0.21(syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S3 is compatible with thermal model predictions. The measured HΛ3 lifetime, τ=181-39+54(stat.)±33(syst.)ps is in agreement within 1σ with the world average value.
Published: 2016

27. Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract: Transverse momentum (pT) spectra of pions, kaons, and protons up to pT=20GeV/c have been measured in Pb-Pb collisions at sNN=2.76TeV using the ALICE detector for six different centrality classes covering 0%-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT≈3GeV/c in central Pb-Pb collisions that decreases for more peripheral collisions. For pT>10GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10%-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT
Published: 2016

28. Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract: We report on results obtained with the event-shape engineering technique applied to Pb-Pb collisions at sNN=2.76 TeV. By selecting events in the same centrality interval, but with very different average flow, different initial-state conditions can be studied. We find the effect of the event-shape selection on the elliptic flow coefficient v2 to be almost independent of transverse momentum pT, which is as expected if this effect is attributable to fluctuations in the initial geometry of the system. Charged-hadron, -pion, -kaon, and -proton transverse momentum distributions are found to be harder in events with higher-than-average elliptic flow, indicating an interplay between radial and elliptic flow.
Published: 2016

29. HΛ3 and H‾Λ¯3 production in Pb–Pb collisions at sNN=2.76 TeV

Author: Collaboration, ALICE, Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: The production of the hypertriton nuclei HΛ3 and H[U+203E]Λ-3 has been measured for the first time in Pb-Pb collisions at sNN=2.76 TeV with the ALICE experiment at LHC. The pT-integrated HΛ3 yield in one unity of rapidity, dN/dy×B.R.(HΛ3→He3,π-)=(3.86±0.77(stat.)±0.68(syst.))×10-in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3=HΛ3/(He3×Λ/p) was measured to be S3=0.60±0.13(stat.)±0.21(syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S3 is compatible with thermal model predictions. The measured HΛ3 lifetime, τ=181-39+54(stat.)±33(syst.)ps is in agreement within 1σ with the world average value.
Published: 2016

30. Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Abstract: The production of (anti-)deuteron and (anti-)He3 nuclei in Pb-Pb collisions at sNN=2.76 TeV has been studied using the ALICE detector at the LHC. The spectra exhibit a significant hardening with increasing centrality. Combined blast-wave fits of several particles support the interpretation that this behavior is caused by an increase of radial flow. The integrated particle yields are discussed in the context of coalescence and thermal-statistical model expectations. The particle ratios, He3/d and He3/p, in Pb-Pb collisions are found to be in agreement with a common chemical freeze-out temperature of Tchem≈156 MeV. These ratios do not vary with centrality which is in agreement with the thermal-statistical model. In a coalescence approach, it excludes models in which nucleus production is proportional to the particle multiplicity and favors those in which it is proportional to the particle density instead. In addition, the observation of 31 anti-tritons in Pb-Pb collisions is reported. For comparison, the deuteron spectrum in pp collisions at s=7 TeV is also presented. While the p/π ratio is similar in pp and Pb-Pb collisions, the d/p ratio in pp collisions is found to be lower by a factor of 2.2 than in Pb-Pb collisions.
Published: 2016

31. Forward-central two-particle correlations in p-Pb collisions at √sNN = 5.02 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 < |η| < 4.0) and associated particles in the central range (|η| < 1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum (pT) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16 ± 6%, rather independent of pT within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different pT and η dependence than observed in the data. The results are sensitive to the parent particle v2 and composition of reconstructed muon tracks, where the contribution from heavy flavour decays is expected to dominate at pT>2 GeV/c.
Published: 2016

32. Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb–Pb collisions at √sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biswas, R
Subjects: LHC, ALICE experiment, Pb-Pb collisions, Heavy-flavour decay muons, Elliptic flow, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The elliptic flow, v2, of muons from heavy-flavour hadron decays at forward rapidity (2.5
Published: 2016

33. Centrality dependence of pion freeze-out radii in Pb-Pb collisions at sNN =2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Abstract: We report on the measurement of freeze-out radii for pairs of identical-charge pions measured in Pb-Pb collisions at sNN=2.76 TeV as a function of collision centrality and the average transverse momentum of the pair kT. Three-dimensional sizes of the system (femtoscopic radii), as well as direction-averaged one-dimensional radii are extracted. The radii decrease with kT, following a power-law behavior. This is qualitatively consistent with expectations from a collectively expanding system, produced in hydrodynamic calculations. The radii also scale linearly with (dNch/dη)1/3. This behavior is compared to world data on femtoscopic radii in heavy-ion collisions. While the dependence is qualitatively similar to results at smaller sNN, a decrease in the ratio Rout/Rside is seen, which is in qualitative agreement with a specific prediction from hydrodynamic models: a change from inside-out to outside-in freeze-out configuration. The results provide further evidence for the production of a collective, strongly coupled system in heavy-ion collisions at the CERN Large Hadron Collider.
Published: 2016

34. Centrality dependence of pion freeze-out radii in Pb-Pb collisions at sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract: We report on the measurement of freeze-out radii for pairs of identical-charge pions measured in Pb-Pb collisions at sNN=2.76 TeV as a function of collision centrality and the average transverse momentum of the pair kT. Three-dimensional sizes of the system (femtoscopic radii), as well as direction-averaged one-dimensional radii are extracted. The radii decrease with kT, following a power-law behavior. This is qualitatively consistent with expectations from a collectively expanding system, produced in hydrodynamic calculations. The radii also scale linearly with (dNch/dη)1/3. This behavior is compared to world data on femtoscopic radii in heavy-ion collisions. While the dependence is qualitatively similar to results at smaller sNN, a decrease in the ratio Rout/Rside is seen, which is in qualitative agreement with a specific prediction from hydrodynamic models: a change from inside-out to outside-in freeze-out configuration. The results provide further evidence for the production of a collective, strongly coupled system in heavy-ion collisions at the CERN Large Hadron Collider.
Published: 2016

35. Forward-central two-particle correlations in p–Pb collisions at sNN=5.02 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 < |η| < 4.0) and associated particles in the central range (|η| < 1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum (pT) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16 ± 6%, rather independent of pT within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different pT and η dependence than observed in the data. The results are sensitive to the parent particle v2 and composition of reconstructed muon tracks, where the contribution from heavy flavour decays is expected to dominate at pT>2 GeV/c.
Published: 2016

36. Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb–Pb collisions at sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biswas, R
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Mathematical Physics, Mathematical Sciences, Physical Sciences, LHC, ALICE experiment, Pb-Pb collisions, Heavy-flavour decay muons, Elliptic flow, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: The elliptic flow, v2, of muons from heavy-flavour hadron decays at forward rapidity (2.5
Published: 2016

37. Search for weakly decaying Λn‾ and ΛΛ exotic bound states in central Pb–Pb collisions at √sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: We present results of a search for two hypothetical strange dibaryon states, i.e. the H-dibaryon and the possible Λn‾ bound state. The search is performed with the ALICE detector in central (0–10%) Pb–Pb collisions at sNN=2.76 TeV, by invariant mass analysis in the decay modes Λn‾→d‾π+ and H-dibaryon →Λpπ−. No evidence for these bound states is observed. Upper limits are determined at 99% confidence level for a wide range of lifetimes and for the full range of branching ratios. The results are compared to thermal, coalescence and hybrid UrQMD model expectations, which describe correctly the production of other loosely bound states, like the deuteron and the hypertriton.
Published: 2016

38. Search for weakly decaying Λn‾ and ΛΛ exotic bound states in central Pb–Pb collisions at sNN=2.76 TeV

Author: Collaboration, ALICE, Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: We present results of a search for two hypothetical strange dibaryon states, i.e. the H-dibaryon and the possible Λn‾ bound state. The search is performed with the ALICE detector in central (0–10%) Pb–Pb collisions at sNN=2.76 TeV, by invariant mass analysis in the decay modes Λn‾→d‾π+ and H-dibaryon →Λpπ−. No evidence for these bound states is observed. Upper limits are determined at 99% confidence level for a wide range of lifetimes and for the full range of branching ratios. The results are compared to thermal, coalescence and hybrid UrQMD model expectations, which describe correctly the production of other loosely bound states, like the deuteron and the hypertriton.
Published: 2016

39. Coherent ψ(2S) photo-production in ultra-peripheral Pb–Pb collisions at √sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: We have performed the first measurement of the coherent ψ(2S) photo-production cross section in ultra-peripheral Pb–Pb collisions at the LHC. This charmonium excited state is reconstructed via the ψ(2S)→l+l− and ψ(2S)→J/ψπ+π− decays, where the J/ψ decays into two leptons. The analysis is based on an event sample corresponding to an integrated luminosity of about 22 μb−1. The cross section for coherent ψ(2S) production in the rapidity interval −0.9
Published: 2015

40. Coherent ψ(2S) photo-production in ultra-peripheral PbPb collisions at sNN=2.76 TeV

Author: Collaboration, ALICE, Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: We have performed the first measurement of the coherent ψ(2S) photo-production cross section in ultra-peripheral Pb–Pb collisions at the LHC. This charmonium excited state is reconstructed via the ψ(2S)→l+l− and ψ(2S)→J/ψπ+π− decays, where the J/ψ decays into two leptons. The analysis is based on an event sample corresponding to an integrated luminosity of about 22 μb−1. The cross section for coherent ψ(2S) production in the rapidity interval −0.9
Published: 2015

41. One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at s NN =2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±,K±K±,KS0KS0,pp, and p¯p¯ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Published: 2015

42. One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at sNN=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract: The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±,K±K±,KS0KS0,pp, and p¯p¯ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Published: 2015

43. Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at sNN=2.76 TeV

Author: The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Mathematical Physics, Mathematical Sciences, Physical Sciences, Charm physics, Heavy Ions, Heavy-ion collision, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Nuclear and plasma physics, Particle and high energy physics
Abstract: Abstract: The nuclear modification factor, RAA, of the prompt charmed mesons D0, D+ and D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy sNN=2.76(Formula presented.) TeV in two transverse momentum intervals, 5 < pT< 8 GeV/c and 8 < pT< 16 GeV/c, and in six collision centrality classes. The RAA shows a maximum suppression of a factor of 5-6 in the 10% most central collisions. The suppression and its centrality dependence are compatible within uncertainties with those of charged pions. A comparison with the RAA of non-prompt J/ψ from B meson decays, measured by the CMS Collaboration, hints at a larger suppression of D mesons in the most central collisions.[Figure not available: see fulltext.]
Published: 2015

44. Centrality dependence of inclusive J/ψ production in p-Pb collisions at sNN=5.02 TeV

Author: The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Quark gluon plasma, QCD, Heavy Ions, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Nuclear and plasma physics, Particle and high energy physics
Abstract: Abstract: We present a measurement of inclusive J/ψ production in p-Pb collisions at sNN=5.02(Formula presented.) TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, pT, in the backward (−4.46 < ycms< −2.96) and forward (2.03 < ycms< 3.53) rapidity intervals in the dimuon decay channel and in the mid-rapidity region (−1.37 < ycms< 0.43) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction, respectively. The pT-differential J/ψ production cross section at backward and forward rapidity is measured for several centrality classes, together with the corresponding average pT and pT2 values. The nuclear modification factor is presented as a function of centrality for the three rapidity intervals, and as a function of pT for several centrality classes at backward and forward rapidity. At mid- and forward rapidity, the J/ψ yield is suppressed up to 40% compared to that in pp interactions scaled by the number of binary collisions. The degree of suppression increases towards central p-Pb collisions at forward rapidity, and with decreasing pT of the J/ψ. At backward rapidity, the nuclear modification factor is compatible with unity within the total uncertainties, with an increasing trend from peripheral to central p-Pb collisions.[Figure not available: see fulltext.]
Published: 2015

45. Centrality dependence of inclusive J/ψ production in p-Pb collisions at (Formula presented.) TeV

Author: The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Quark gluon plasma, QCD, Heavy Ions, Genetics, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: Abstract: We present a measurement of inclusive J/ψ production in p-Pb collisions at sNN=5.02(Formula presented.) TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, pT, in the backward (−4.46 < ycms< −2.96) and forward (2.03 < ycms< 3.53) rapidity intervals in the dimuon decay channel and in the mid-rapidity region (−1.37 < ycms< 0.43) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction, respectively. The pT-differential J/ψ production cross section at backward and forward rapidity is measured for several centrality classes, together with the corresponding average pT and pT2 values. The nuclear modification factor is presented as a function of centrality for the three rapidity intervals, and as a function of pT for several centrality classes at backward and forward rapidity. At mid- and forward rapidity, the J/ψ yield is suppressed up to 40% compared to that in pp interactions scaled by the number of binary collisions. The degree of suppression increases towards central p-Pb collisions at forward rapidity, and with decreasing pT of the J/ψ. At backward rapidity, the nuclear modification factor is compatible with unity within the total uncertainties, with an increasing trend from peripheral to central p-Pb collisions.[Figure not available: see fulltext.]
Published: 2015

46. Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at (Formula presented.) TeV

Author: The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J
Subjects: Charm physics, Heavy Ions, Heavy-ion collision, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: Abstract: The nuclear modification factor, RAA, of the prompt charmed mesons D0, D+ and D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy sNN=2.76(Formula presented.) TeV in two transverse momentum intervals, 5 < pT< 8 GeV/c and 8 < pT< 16 GeV/c, and in six collision centrality classes. The RAA shows a maximum suppression of a factor of 5-6 in the 10% most central collisions. The suppression and its centrality dependence are compatible within uncertainties with those of charged pions. A comparison with the RAA of non-prompt J/ψ from B meson decays, measured by the CMS Collaboration, hints at a larger suppression of D mesons in the most central collisions.[Figure not available: see fulltext.]
Published: 2015

47. Measurement of pion, kaon and proton production in proton–proton collisions at s=7 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Pedrosa, F Baltasar Dos Santos, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract: The measurement of primary [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] production at mid-rapidity ([Formula: see text] 0.5) in proton-proton collisions at [Formula: see text][Formula: see text] 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is reported. Particle identification is performed using the specific ionisation energy-loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/[Formula: see text] for pions, from 0.2 up to 6 GeV/[Formula: see text] for kaons and from 0.3 up to 6 GeV/[Formula: see text] for protons. The measured spectra and particle ratios are compared with quantum chromodynamics-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
Published: 2015

48. Inclusive photon production at forward rapidities in proton–proton collisions at s = 0.9, 2.76 and 7 TeV

Author: ALICE Collaboration, Abelev, B, Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agostinelli, A, Agrawal, N, Ahammed, Z, Ahmad, N, Ahmed, I, Ahn, SU, Ahn, SA, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Awes, TC, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartke, J, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Baumann, C, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bellwied, R, Belmont-Moreno, E, Belmont, R, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Berger, ME, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, and Bianchin, C
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract: The multiplicity and pseudorapidity distributions of inclusive photons have been measured at forward rapidities (2.3 < η < 3.9) in proton–proton collisions at three center-of-mass energies, √s = 0.9, 2.76 and 7 TeV using the ALICE detector. It is observed that the increase in the average photon multiplicity as a function of beam energy is compatible with both a logarithmic and a power-law dependence. The relative increase in average photon multiplicity produced in inelastic pp collisions at 2.76 and 7 TeV center-of-mass energies with respect to 0.9 TeV are 37.2± 0.3% (stat) ± 8.8% (sys) and 61.2 ± 0.3 % (stat) ± 7.6% (sys), respectively. The photon multiplicity distributions for all center-of-mass energies are well described by negative binomial distributions. The multiplicity distributions are also presented in terms of KNO variables. The results are compared to model predictions, which are found in general to underestimate the data at large photon multiplicities, in particular at the highest center-of-mass energy. Limiting fragmentation behavior of photons has been explored with the data, but is not observed in the measured pseudorapidity range.
Published: 2015

49. Inclusive photon production at forward rapidities in proton–proton collisions at √s = 0.9, 2.76 and 7 TeV

Author: ALICE Collaboration, Abelev, B, Adam, J, Adamová, D, Aggarwal, MM, Rinella, GA, Agnello, M, Agostinelli, A, Agrawal, N, Ahammed, Z, Ahmad, N, Ahmed, I, Ahn, SU, Ahn, SA, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Awes, TC, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartke, J, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Baumann, C, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bellwied, R, Belmont-Moreno, E, Belmont, R, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Berger, ME, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, and Bianchin, C
Subjects: Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The multiplicity and pseudorapidity distributions of inclusive photons have been measured at forward rapidities (2.3 < η < 3.9) in proton–proton collisions at three center-of-mass energies, √s = 0.9, 2.76 and 7 TeV using the ALICE detector. It is observed that the increase in the average photon multiplicity as a function of beam energy is compatible with both a logarithmic and a power-law dependence. The relative increase in average photon multiplicity produced in inelastic pp collisions at 2.76 and 7 TeV center-of-mass energies with respect to 0.9 TeV are 37.2± 0.3% (stat) ± 8.8% (sys) and 61.2 ± 0.3 % (stat) ± 7.6% (sys), respectively. The photon multiplicity distributions for all center-of-mass energies are well described by negative binomial distributions. The multiplicity distributions are also presented in terms of KNO variables. The results are compared to model predictions, which are found in general to underestimate the data at large photon multiplicities, in particular at the highest center-of-mass energy. Limiting fragmentation behavior of photons has been explored with the data, but is not observed in the measured pseudorapidity range.
Published: 2015

50. Production of [Formula: see text] and [Formula: see text] in proton-proton collisions at [Formula: see text] 7 TeV.

Author: ALICE Collaboration, Abelev, B, Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agostinelli, A, Agrawal, N, Ahammed, Z, Ahmad, N, Ahmed, I, Ahn, SU, Ahn, SA, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Aronsson, T, Arsene, IC, Arslandok, M, Augustinus, A, Averbeck, R, Awes, TC, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, Baral, RC, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartke, J, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Baumann, C, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bellwied, R, Belmont-Moreno, E, Belmont, R, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Berger, ME, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, and Bianchin, C
Subjects: ALICE Collaboration, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The production of the strange and double-strange baryon resonances ([Formula: see text], [Formula: see text]) has been measured at mid-rapidity ([Formula: see text][Formula: see text]) in proton-proton collisions at [Formula: see text] [Formula: see text] 7 TeV with the ALICE detector at the LHC. Transverse momentum spectra for inelastic collisions are compared to QCD-inspired models, which in general underpredict the data. A search for the [Formula: see text] pentaquark, decaying in the [Formula: see text] channel, has been carried out but no evidence is seen.
Published: 2015

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