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 Appelshaeuser, Silvia Arcelli, Néstor Armesto, Roberta Arnaldi, Ionut Cristian Arsene, Mesut Arslandok, Benjamin Audurier, 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, PC 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 Bencédi, Stefania Beolè, Ionela Berceanu, Alexandru Bercuci, Yaroslav Berdnikov, Dániel Berényi, 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, D Blau, Christoph Blume, Friederike Bock, A Bogdanov, Hans Bøggild, Laszlo Boldizsar, Marek Bombara, Julian Book, Herve Borel, Alexander Borissov, Marcello Borri, Francesco Bossú, Michiel Botje, Elena Botta, Stefan Boettger, Peter Braun-Munzinger, Marco Bregant, Timo Breitner, Theo Alexander Broker, Tyler Allen Browning, Michal Broz, EJ Brucken, Elena Bruna, Giuseppe Eugenio Bruno, Dmitry Budnikov, Henner Büsching, Stefania Bufalino, P 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, J Cepila
发表日期
2016/3/10
期刊
Physics Letters B
卷号
754
页码范围
360-372
出版商
North-Holland
简介
The production of the hypertriton nuclei H Λ 3 and H‾ Λ¯ 3 has been measured for the first time in Pb–Pb collisions at s NN= 2.76 TeV with the ALICE experiment at LHC. The p T-integrated H Λ 3 yield in one unity of rapidity, d N/d y× BR (H Λ 3→ He 3, π−)=(3.86±0.77 (stat.)±0.68 (syst.))× 10− 5 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 B 3 shows a dependence on the transverse momentum, similar to the B 2 of deuterons and the B 3 of 3 He nuclei. The ratio of yields S 3= H Λ 3/(He 3× Λ/p) was measured to be S 3= 0.60±0.13 (stat.)±0.21 (syst.) in 0–10% centrality events; this value is compared to different theoretical models. The measured S 3 is compatible with thermal model predictions. The measured H Λ 3 lifetime, τ= 181− 39+ 54 (stat.)±33 (syst.) ps is in agreement within …
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