Long-range angular correlations on the near and away side in p–Pb collisions at √sNN = 5.02 TeV
Articolo
Data di Pubblicazione:
2013
Abstract:
Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p–Pb collisions at a nucleon–nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < pT,assoc < pT,trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as
associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS Collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and pT bins, and the widths show no significant evolution with event multiplicity or pT. These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
p-Pb collisions
Elenco autori:
Betty, Abelev; Jaroslav, Adam; Dagmar, Adamova; Andrew Marshall, Adare; Madan, Aggarwal; Gianluca Aglieri, Rinella; Michelangelo, Agnello; Andras Gabor, Agocs; Andrea, Agostinelli; Zubayer, Ahammed; Nazeer, Ahmad; Arshad, Ahmad; Sul Ah, Ahn; Sang Un, Ahn; Muhammad, Ajaz; Alexander, Akindinov; Dmitry, Aleksandrov; Bruno, Alessandro; Andrea, Alici; Anton, Alkin; Erick Jonathan Almaraz, Avina; Johan, Alme; Torsten, Alt; Valerio, Altini; Sedat, Altinpinar; Igor, Altsybeev; Cristian, Andrei; Anton, Andronic; Venelin, Anguelov; Jonas, Anielski; Christopher Daniel, Anson; Tome, Anticic; Federico, Antinori; Pietro, Antonioli; Laurent Bernard, Aphecetche; Harald, Appelshauser; Nicolas, Arbor; Silvia, Arcelli; Andreas, Arend; Nestor, Armesto; Roberta, Arnaldi; Tomas Robert, Aronsson; Ionut Cristian, Arsene; Mesut, Arslandok; Andzhey, Asryan; Andre, Augustinus; Ralf Peter, Averbeck; Terry, Awes; Juha Heikki, Aysto; Mohd Danish, Azmi; Matthias Jakob, Bach; Angela, Badala; Yong Wook, Baek; Raphaelle Marie, Bailhache; Renu, Bala; Rinaldo Baldini, Ferroli; Alberto, Baldisseri; Fernando Baltasar Dos Santos, Pedrosa; Jaroslav, Ban; Rama Chandra, Baral; Roberto, Barbera; Francesco, Barile; Gergely Gabor, Barnafoldi; Lee Stuart, Barnby; Valerie, Barret; Jerzy Gustaw, Bartke; Maurizio, Basile; Nicole, Bastid; Sumit, Basu; Bastian, Bathen; Guillaume, Batigne; Boris, Batyunya; Christoph Heinrich, Baumann; Ian Gardner, Bearden; Hans, Beck; Nirbhay Kumar, Behera; Iouri, Belikov; Francesca, Bellini; Rene, Bellwied; Ernesto Belmont, Moreno; Gyula, Bencedi; Stefania, Beole; Ionela, Berceanu; Alexandru, Bercuci; Yaroslav, Berdnikov; Daniel, Berenyi; Anais Annick Erica, Bergognon; Dario, Berzano; Latchezar, Betev; Anju, Bhasin; Ashok Kumar, Bhati; Jihyun, Bhom; Livio, Bianchi; Nicola, Bianchi; Jaroslav, Bielcik; Jana, Bielcikova; Ante, Bilandzic; Sandro, Bjelogrlic; Francesco, Blanco; F., Blanco; Dmitry, Blau; Christoph, Blume; Marco, Boccioli; Stefan, Boettger; Alexey, Bogdanov; Hans, Boggild; Mikhail, Bogolyubsky; Laszlo, Boldizsar; Marek, Bombara; Julian, Book; Herve, Borel; Alexander, Borissov; Francesco, Bossu; Michiel, Botje; Elena, Botta; Ermes, Braidot; Peter Braun, Munzinger; Bregant, Marco; Timo Gunther, Breitner; Theo Alexander, Broker; Tyler Allen, Browning; Michal, Broz; Rene, Brun; Elena, Bruna; Giuseppe Eugenio, Bruno; Dmitry, Budnikov; Henner, Buesching; Stefania, Bufalino; Predrag, Buncic; Oliver, Busch; Edith Zinhle, Buthelezi; Diego Caballero, Orduna; Davide, Caffarri; Xu, Cai; Helen Louise, Caines; Ernesto Calvo, Villar; Camerini, Paolo; Veronica Canoa, Roman; Giovanni Cara, Romeo; Wisla, Carena; Francesco, Carena; Nelson Carlin, Filho; Federico, Carminati; Amaya Ofelia Casanova, Diaz; Javier Ernesto Castillo, Castellanos; Juan Francisco Castillo, Hernandez; Ester Anna Rita, Casula; Vasile, Catanescu; Costanza, Cavicchioli; Cesar Ceballos, Sanchez; Jan, Cepila; Piergiaio, Cerello; Beomsu, Chang; Sylvain, Chapeland; Jean Luc Fernand, Charvet; Sukalyan, Chattopadhyay; Subhasis, Chattopadhyay; Isha, Chawla; Michael Gerard, Cherney; Cvetan, Cheshkov; Brigitte, Cheynis; Vasco Miguel Chibante, Barroso; David, Chinellato; Peter, Chochula; Marek, Chojnacki; Subikash, Choudhury; Panagiotis, Christakoglou; Christian Holm, Christensen; Peter, Christiansen; Tatsuya, Chujo; Suh Urk, Chung; Corrado, Cicalo; Luisa, Cifarelli; Federico, Cindolo; Jean Willy Andre, Cleymans; Fabrizio, Coccetti; Fabio, Colamaria; Domenico, Colella; Alberto, Collu; Gustavo Conesa, Balbastre; Zaida Conesa del, Valle; Megan Elizabeth, Connors; Contin, Giacomo; Jesus Guillermo, Contreras; Thomas Michael, Cormier; Yasser Corrales, Morales; Pietro, Cortese; Ismael Cortes, Maldonado; Mauro Rogerio, Cosentino; Filippo, Costa; Manuel Enrique, Cotallo; Elisabetta, Crescio; Philippe, Crochet; Emilia Cruz, Alaniz; Rigoberto Cruz, Albino; Eleazar, Cuautle; Leticia, Cunqueiro; Andrea, Dainese; Hans Hjersing, Dalsgaard; Andrea, Danu; Indranil, Das; Debasish, Das; Supriya, Das; Kushal,
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