作者
Jaroslav Adam, Dagmar Adamová, Madan Mohan Aggarwal, G Aglieri Rinella, Michelangelo Agnello, Neelima Agrawal, Zubayer Ahammed, Sang Un Ahn, Ilaria Aimo, Salvatore Aiola, Muhammad Ajaz, Alexander Akindinov, Sk Noor Alam, Dmitry Aleksandrov, Bruno Alessandro, Didier Alexandre, R Alfaro Molina, Andrea Alici, Anton Alkin, Johan Alme, Torsten Alt, Sedat Altinpinar, Igor Altsybeev, C Alves Garcia Prado, Cristian Andrei, Anton Andronic, Venelin Anguelov, Jonas Anielski, Tome Antičić, Federico Antinori, Pietro Antonioli, L Aphecetche, Harald Appelshäuser, Silvia Arcelli, Néstor Armesto, Roberta Arnaldi, Tomas Aronsson, Ionut Cristian Arsene, Mesut Arslandok, Andre Augustinus, R Averbeck, Mohd Danish Azmi, Matthias Bach, Angela Badalà, Yong Wook Baek, Stefano Bagnasco, Raphaëlle Bailhache, Renu Bala, Alberto Baldisseri, F Baltasar Dos Santos Pedrosa, Rama Chandra Baral, Anastasia Maria Barbano, Roberto Barbera, Francesco Barile, Gergely Gábor Barnaföldi, Lee Stuart Barnby, Valerie Barret, Paolo Bartalini, Klaus Barth, Jerzy Bartke, Esther Bartsch, Maurizio Basile, Nicole Bastid, Sumit Basu, Bastian Bathen, Guillaume Batigne, A Batista Camejo, Boris Batyunya, Paul Christoph Batzing, Ian Gardner Bearden, Hans Beck, Cristina Bedda, Nirbhay Kumar Behera, Iouri Belikov, Francesca Bellini, H Bello Martinez, Rene Bellwied, Ron Belmont, Ernesto Belmont-Moreno, Vladimir Belyaev, Gyula Bencedi, Stefania Beole, Ionela Berceanu, Alexandru Bercuci, Yaroslav Berdnikov, Daniel Berenyi, Redmer Alexander Bertens, Dario Berzano, Latchezar Betev, Anju Bhasin, Inayat Rasool Bhat, Ashok Kumar Bhati, Buddhadeb Bhattacharjee, Jihyun Bhom, Livio Bianchi, Nicola Bianchi, Chiara Bianchin, Jaroslav Bielčík, Jana Bielčíková, Ante Bilandzic, Rathijit Biswas, Saikat Biswas, Sandro Bjelogrlic, Fernando Blanco, Dmitry Blau, Christoph Blume, Friederike Bock, Alexey Bogdanov, Hans Bøggild, László Boldizsár, Marek Bombara, Julian Book, Hervé Borel, Alexander Borissov, Marcello Borri, Francesco Bossú, Michiel Botje, Elena Botta, Stefan Böttger, Peter Braun-Munzinger, Marco Bregant, Timo Breitner, Theo Alexander Broker, Tyler Allen Browning, Michal Broz, Erik Jens Brucken, Elena Bruna, Giuseppe Eugenio Bruno, Dmitry Budnikov, Henner Buesching, Stefania Bufalino, Predrag Buncic, Oliver Busch, Z Buthelezi, Jesse Thomas Buxton, Davide Caffarri, Xiao Cai, H Caines, L Calero Diaz, Alberto Caliva, E Calvo Villar, Paolo Camerini, Francesco Carena, Wisla Carena, J Castillo Castellanos, Andrew John Castro, Ester Anna Rita Casula, Costanza Cavicchioli, C Ceballos Sanchez, Jan Cepila
发表日期
2015/12/17
期刊
Physics Letters B
卷号
751
页码范围
358-370
出版商
North-Holland
简介
We have performed the first measurement of the coherent ψ (2 S) photo-production cross section in ultra-peripheral Pbsingle bondPb collisions at the LHC. This charmonium excited state is reconstructed via the ψ (2 S)→ l+ l− and ψ (2 S)→ J/ψ π+ 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 (2 S) production in the rapidity interval− 0.9< y< 0.9 is d σ ψ (2 S) coh/d y= 0.83±0.19 (stat+ syst) mb. The ψ (2 S) to J/ψ coherent cross section ratio is 0.34− 0.07+ 0.08 (stat+ syst). The obtained results are compared to predictions from theoretical models.
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