Measurements of long-range near-side angular correlations in √sNN = 5 TeV proton-lead collisions in the forward region

Aaij, R. et al. (2016) Measurements of long-range near-side angular correlations in √sNN = 5 TeV proton-lead collisions in the forward region. Physics Letters B, 762, 473 - 483. (doi:10.1016/j.physletb.2016.09.064)

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Abstract

Two-particle angular correlations are studied in proton-lead collisions at a nucleon–nucleon centre-of-mass energy of √sNN = 5 TeV , collected with the LHCb detector at the LHC. The analysis is based on data recorded in two beam configurations, in which either the direction of the proton or that of the lead ion is analysed. The correlations are measured in the laboratory system as a function of relative pseudorapidity, Δη, and relative azimuthal angle, Δϕ, for events in different classes of event activity and for different bins of particle transverse momentum. In high-activity events a long-range correlation on the near side, Δ ϕ ≈ 0 , is observed in the pseudorapidity range 2.0 < η < 4.9 . This measurement of long-range correlations on the near side in proton-lead collisions extends previous observations into the forward region up to η = 4.9 . The correlation increases with growing event activity and is found to be more pronounced in the direction of the lead beam. However, the correlation in the direction of the lead and proton beams are found to be compatible when comparing events with similar absolute activity in the direction analysed.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Pappagallo, Dr Marco and Ogilvy, Mr Stephen and Alexander, Dr Michael and Soler, Professor Paul and Sail, Mr Paul and Hynds, Mr Daniel and Spradlin, Dr Patrick and Eklund, Professor Lars
Authors: Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves Jr, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., Andreassi, G., Andreotti, M., Andrews, J.E., Appleby, R.B., Aquines Gutierrez, O., Archilli, F., d'Argent, P., Artamonov, A., Artuso, M., Aslanides, E., Auriemma, G., Baalouch, M., Bachmann, S., Back, J.J., Badalov, A., Baesso, C., Baldini, W., Barlow, R.J., Barschel, C., Barsuk, S., Barter, W., Batozskaya, V., Battista, V., Bay, A., Beaucourt, L., Beddow, J., Bedeschi, F., Bediaga, I., Bel, L.J., Bellee, V., Belloli, N., Belyaev, I., Ben-Haim, E., Bencivenni, G., Benson, S., Benton, J., Berezhnoy, A., Bernet, R., Bertolin, A., Bettler, M.-O., van Beuzekom, M., Bien, A., Bifani, S., Billoir, P., Bird, T., Birnkraut, A., Bizzeti, A., Blake, T., Blanc, F., Blouw, J., Blusk, S., Bocci, V., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borsato, M., Bowcock, T.J.V., Bowen, E., Bozzi, C., Braun, S., Britsch, M., Britton, T., Brodzicka, J., Brook, N.H., Buchanan, E., Burr, C., Bursche, A., Buytaert, J., Cadeddu, S., Calabrese, R., Calvi, M., Calvo Gomez, M., Campana, P., Campora Perez, D., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carson, L., Carvalho Akiba, K., Casse, G., Cassina, L., Castillo Garcia, L., Cattaneo, M., Cauet, C., Cavallero, G., Cenci, R., Charles, M., Charpentier, P., Chefdeville, M., Chen, S., Cheung, S.-F., Chiapolini, N., Chrzaszcz, M., Cid Vidal, X., Ciezarek, G., Clarke, P.E.L., Clemencic, M., Cliff, H.V., Closier, J., Coco, V., Cogan, J., Cogneras, E., Cogoni, V., Cojocariu, L., Collazuol, G., Collins, P., Comerma-Montells, A., Contu, A., Cook, A., Coombes, M., Coquereau, S., Corti, G., Corvo, M., Couturier, B., Cowan, G.A., Craik, D.C., Crocombe, A., Cruz Torres, M., Cunliffe, S., Currie, R., D'Ambrosio, C., Dall'Occo, E., Dalseno, J., David, P.N.Y., Davis, A., De Aguiar Francisco, O., De, K., De Capua, S., De Cian, M., De Miranda, J.M., De Paula, L., Simone, P., Dean, C.-T., Decamp, D., Deckenhoff, M., Del Buono, L., Déléage, N., Demmer, M., Derkach, D., Deschamps, O., Dettori, F., Dey, B., Di Canto, A., Di Ruscio, F., Dijkstra, H., Donleavy, S., Dordei, F., Dorigo, M., Dosil Suárez, A., Dossett, D., Dovbnya, A., Dreimanis, K., Dufour, L., Dujany, G., Dupertuis, F., Durante, P., Dzhelyadin, R., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Eitschberger, U., Ekelhof, R., Eklund, L., El Rifai, I., Elsasser, C., Ely, S., Esen, S., Evans, H.M., Evans, T., Falabella, A., Färber, C., Farley, N., Farry, S., Fay, R., Ferguson, D., Fernandez Albor, V., Ferrari, F., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fiore, M., Fiorini, M., Firlej, M., Fitzpatrick, C., Fiutowski, T., Fohl, K., Fol, P., Fontana, M., Fontanelli, F., Forshaw, D.C., Forty, R., Frank, M., Frei, C., Frosini, M., Fu, J., Furfaro, E., Gallas Torreira, A., Galli, D., Gallorini, S., Gambetta, S., Gandelman, M., Gandini, P., Gao, Y., García Pardiñas, J., Garra Tico, J., Garrido, L., Gascon, D., Gaspar, C., Gauld, R., Gavardi, L., Gazzoni, G., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, P., Gianì, S., Gibson, V., Girard, O.G., Giubega, L., Gligorov, V.V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gotti, C., Grabalosa Gándara, M., Graciani Diaz, R., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greening, E., Gregson, S., Griffith, P., Grillo, L., Grünberg, O., Gui, B., Gushchin, E., Guz, Y., Gys, T., Hadavizadeh, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S.C., Hall, S., Hamilton, B., Han, X., Hansmann-Menzemer, S., Harnew, N., Harnew, S.T., Harrison, J., He, J., Head, T., Heijne, V., Heister, A., Hennessy, K., Henrard, P., Henry, L., Hernando Morata, J.A., van Herwijnen, E., Heß, M., Hicheur, A., Hill, D., Hoballah, M., Hombach, C., Hulsbergen, W., Humair, T., Hussain, N., Hutchcroft, D., Hynds, D., Idzik, M., Ilten, P., Jacobsson, R., Jaeger, A., Jalocha, J., Jans, E., Jawahery, A., Jing, F., John, M., Johnson, D., Jones, C.R., Joram, C., Jost, B., Jurik, N., Kandybei, S., Kanso, W., Karacson, M., Karbach, T.M., Karodia, S., Kecke, M., Kelsey, M., Kenyon, I.R., Kenzie, M., Ketel, T., Khairullin, E., Khanji, B., Khurewathanakul, C., Kirn, T., Klaver, S., Klimaszewski, K., Kochebina, O., Kolpin, M., Komarov, I., Koopman, R.F., Koppenburg, P., Kozeiha, M., Kravchuk, L., Kreplin, K., Kreps, M., Krocker, G., Krokovny, P., Kruse, F., Krzemien, W., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kuonen, A.K., Kurek, K., Kvaratskheliya, T., Lacarrere, D., Lafferty, G., Lai, A., Lambert, D., Lanfranchi, G., Langenbruch, C., Langhans, B., Latham, T., Lazzeroni, C., Le Gac, R., van Leerdam, J., Lees, J.-P., Lefèvre, R., Leflat, A., Lefrançois, J., Lemos Cid, E., Leroy, O., Lesiak, T., Leverington, B., Li, Y., Likhomanenko, T., Liles, M., Lindner, R., Linn, C., Lionetto, F., Liu, B., Liu, X., Loh, D., Longstaff, I., Lopes, J.H., Lucchesi, D., Lucio Martinez, M., Luo, H., Lupato, A., Luppi, E., Lupton, O., Lusiani, A., Machefert, F., Maciuc, F., Maev, O., Maguire, K., Malde, S., Malinin, A., Manca, G., Mancinelli, G., Manning, P., Mapelli, A., Maratas, J., Marchand, J.F., Marconi, U., Marin Benito, C., Marino, P., Marks, J., Martellotti, G., Martin, M., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Martins Tostes, D., Massafferri, A., Matev, R., Mathad, A., Mathe, Z., Matteuzzi, C., Mauri, A., Maurin, B., Mazurov, A., McCann, M., McCarthy, J., McNab, A., McNulty, R., Meadows, B., Meier, F., Meissner, M., Melnychuk, D., Merk, M., Michielin, E., Milanes, D.A., Minard, M.-N., Mitzel, D.S., Molina Rodriguez, J., Monroy, I.A., Monteil, S., Morandin, M., Morawski, P., Mordà, A., Morello, M.J., Moron, J., Morris, A.B., Mountain, R., Muheim, F., Müller, D., Müller, J., Müller, K., Müller, V., Mussini, M., Muster, B., Naik, P., Nakada, T., Nandakumar, R., Nandi, A., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Neuner, M., Nguyen, A.D., Nguyen, T.D., Nguyen-Mau, C., Niess, V., Niet, R., Nikitin, N., Nikodem, T., Novoselov, A., O'Hanlon, D.P., Oblakowska-Mucha, A., Obraztsov, V., Ogilvy, S., Okhrimenko, O., Oldeman, R., Onderwater, C.J.G., Osorio Rodrigues, B., Otalora Goicochea, J.M., Otto, A., Owen, P., Oyanguren, A., Palano, A., Palombo, F., Palutan, M., Panman, J., Papanestis, A., Pappagallo, M., Pappalardo, L.L., Pappenheimer, C., Parker, W., Parkes, C., Passaleva, G., Patel, G.D., Patel, M., Patrignani, C., Pearce, A., Pellegrino, A., Penso, G., Pepe Altarelli, M., Perazzini, S., Perret, P., Pescatore, L., Petridis, K., Petrolini, A., Petruzzo, M., Picatoste Olloqui, E., Pietrzyk, B., Pilař, T., Pinci, D., Pistone, A., Piucci, A., Playfer, S., Plo Casasus, M., Poikela, T., Polci, F., Poluektov, A., Polyakov, I., Polycarpo, E., Popov, A., Popov, D., Popovici, B., Potterat, C., Price, E., Price, J.D., Prisciandaro, J., Pritchard, A., Prouve, C., Pugatch, V., Puig Navarro, A., Punzi, G., Qian, W., Quagliani, R., Rachwal, B., Rademacker, J.H., Rama, M., Rangel, M.S., Raniuk, I., Rauschmayr, N., Raven, G., Redi, F., Reichert, S., Reid, M.M., dos Reis, A.C., Ricciardi, S., Richards, S., Rihl, M., Rinnert, K., Rives Molina, V., Robbe, P., Rodrigues, A.B., Rodrigues, E., Rodriguez Lopez, J.A., Rodriguez Perez, P., Roiser, S., Romanovsky, V., Romero Vidal, A., Ronayne, J.W., Rotondo, M., Rouvinet, J., Ruf, T., Ruiz Valls, P., Saborido Silva, J.J., Sagidova, N., Sail, P., Saitta, B., Salustino Guimaraes, V., Sanchez Mayordomo, C., Sanmartin Sedes, B., Santacesaria, R., Santamarina Rios, C., Santimaria, M., Santovetti, E., Sarti, A., Satriano, C., Satta, A., Saunders, D.M., Savrina, D., Schael, S., Schiller, M., Schindler, H., Schlupp, M., Schmelling, M., Schmelzer, T., Schmidt, B., Schneider, O., Schopper, A., Schubiger, M., Schune, M.-H., Schwemmer, R., Sciascia, B., Sciubba, A., Semennikov, A., Sergi, A., Serra, N., Serrano, J., Sestini, L., Seyfert, P., Shapkin, M., Shapoval, I., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, V., Shires, A., Siddi, B.G., Silva Coutinho, R., Silva de Oliveira, L., Simi, G., Sirendi, M., Skidmore, N., Skwarnicki, T., Smith, E., Smith, E., Smith, I.T., Smith, J., Smith, M., Snoek, H., Sokoloff, M.D., Soler, F.J.P., Soomro, F., Souza, D., Souza De Paula, B., Spaan, B., Spradlin, P., Sridharan, S., Stagni, F., Stahl, M., Stahl, S., Stefkova, S., Steinkamp, O., Stenyakin, O., Stevenson, S., Stoica, S., Stone, S., Storaci, B., Stracka, S., Straticiuc, M., Straumann, U., Sun, L., Sutcliffe, W., Swientek, K., Swientek, S., Syropoulos, V., Szczekowski, M., Szumlak, T., T'Jampens, S., Tayduganov, A., Tekampe, T., Teklishyn, M., Tellarini, G., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Todd, J., Tolk, S., Tomassetti, L., Tonelli, D., Topp-Joergensen, S., Torr, N., Tournefier, E., Tourneur, S., Trabelsi, K., Tran, M.T., Tresch, M., Trisovic, A., Tsaregorodtsev, A., Tsopelas, P., Tuning, N., Ukleja, A., Ustyuzhanin, A., Uwer, U., Vacca, C., Vagnoni, V., Valenti, G., Vallier, A., Vazquez Gomez, R., Vazquez Regueiro, P., Vázquez Sierra, C., Vecchi, S., van Veghel, M., Velthuis, J.J., Veltri, M., Veneziano, G., Vesterinen, M., Viaud, B., Vieira, D., Vieites Diaz, M., Vilasis-Cardona, X., Volkov, V., Vollhardt, A., Volyanskyy, D., Voong, D., Vorobyev, A., Vorobyev, V., Voß, C., de Vries, J.A., Waldi, R., Wallace, C., Wallace, R., Walsh, J., Wandernoth, S., Wang, J., Ward, D.R., Watson, N.K., Websdale, D., Weiden, A., Whitehead, M., Wilkinson, G., Wilkinson, M., Williams, M., Williams, M.P., Williams, M., Williams, T., Wilson, F.F., Wimberley, J., Wishahi, J., Wislicki, W., Witek, M., Wormser, G., Wotton, S.A., Wright, S., Wyllie, K., Xie, Y., Xu, Z., Yang, Z., Yu, J., Yuan, X., Yushchenko, O., Zangoli, M., Zavertyaev, M., Zhang, L., Zhang, Y., Zhelezov, A., Zhokhov, A., Zhong, L., Zhukov, V., and Zucchelli, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN:0370-2693
ISSN (Online):1873-2445
Published Online:06 October 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Physics Letters B 762: 473-483
Publisher Policy:Reproduced under a Creative Commons License

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