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HΛ3 and H‾Λ‾3 lifetime measurement in Pb–Pb collisions at sNN=5.02 TeV via two-body decay
- Author(s): Acharya, S
- Adamová, D
- Adhya, SP
- Adler, A
- Adolfsson, J
- Aggarwal, MM
- Aglieri Rinella, G
- Agnello, M
- Agrawal, N
- Ahammed, Z
- Ahmad, S
- Ahn, SU
- Akindinov, A
- Al-Turany, M
- Alam, SN
- Albuquerque, DSD
- Aleksandrov, D
- Alessandro, B
- Alfanda, HM
- Alfaro Molina, R
- Ali, B
- Ali, Y
- Alici, A
- Alkin, A
- Alme, J
- Alt, T
- Altenkamper, L
- Altsybeev, I
- Anaam, MN
- Andrei, C
- Andreou, D
- Andrews, HA
- Andronic, A
- Angeletti, M
- Anguelov, V
- Anson, C
- Antičić, T
- Antinori, F
- Antonioli, P
- Anwar, R
- Apadula, N
- Aphecetche, L
- Appelshäuser, H
- Arcelli, S
- Arnaldi, R
- Arratia, M
- Arsene, IC
- Arslandok, M
- Augustinus, A
- Averbeck, R
- Aziz, S
- Azmi, MD
- Badalà, A
- Baek, YW
- Bagnasco, S
- Bai, X
- Bailhache, R
- Bala, R
- Baldisseri, A
- Ball, M
- Balouza, S
- Baral, RC
- Barbera, R
- Barioglio, L
- Barnaföldi, GG
- Barnby, LS
- Barret, V
- Bartalini, P
- Barth, K
- Bartsch, E
- Baruffaldi, F
- Bastid, N
- Basu, S
- Batigne, G
- Batyunya, B
- Batzing, PC
- Bauri, D
- Bazo Alba, JL
- Bearden, IG
- Bedda, C
- Behera, NK
- Belikov, I
- Bellini, F
- Bellwied, R
- Belyaev, V
- Bencedi, G
- Beole, S
- Bercuci, A
- Berdnikov, Y
- Berenyi, D
- Bertens, RA
- Berzano, D
- Besoiu, MG
- Betev, L
- Bhasin, A
- Bhat, IR
- Bhat, MA
- Bhatt, H
- Bhattacharjee, B
- Bianchi, A
- Bianchi, L
- Bianchi, N
- Bielčík, J
- Bielčíková, J
- Bilandzic, A
- Biro, G
- Biswas, R
- Biswas, S
- Blair, JT
- Blau, D
- Blume, C
- Boca, G
- Bock, F
- Bogdanov, A
- Boldizsár, L
- Bolozdynya, A
- Bombara, M
- Bonomi, G
- Borel, H
- Borissov, A
- Borri, M
- Bossi, H
- Botta, E
- Bratrud, L
- Braun-Munzinger, P
- Bregant, M
- Broker, TA
- Broz, M
- Brucken, EJ
- Bruna, E
- Bruno, GE
- Buckland, MD
- Budnikov, D
- Buesching, H
- Bufalino, S
- Bugnon, O
- Buhler, P
- Buncic, P
- Buthelezi, Z
- Butt, JB
- Buxton, JT
- Bysiak, SA
- Caffarri, D
- Caliva, A
- Calvo Villar, E
- Camacho, RS
- Camerini, P
- Capon, AA
- Carnesecchi, F
- Castillo Castellanos, J
- Castro, AJ
- Casula, EAR
- Catalano, F
- Ceballos Sanchez, C
- Chakraborty, P
- Chandra, S
- Chang, B
- Chang, W
- Chapeland, S
- Chartier, M
- Chattopadhyay, S
- Chattopadhyay, S
- Chauvin, A
- Cheshkov, C
- Cheynis, B
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- Chinellato, DD
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- Chochula, P
- Chowdhury, T
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- Christensen, CH
- Christiansen, P
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- Colocci, M
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- Conesa del Valle, Z
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- Contreras, JG
- Cormier, TM
- Corrales Morales, Y
- Cortese, P
- Cosentino, MR
- Costa, F
- Costanza, S
- Crkovská, J
- Crochet, P
- Cuautle, E
- Cui, P
- Cunqueiro, L
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- Damas, FPA
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- Danisch, MC
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- De Souza, RD
- Deb, S
- Degenhardt, HF
- Deja, KR
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- Devetak, D
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- Zichichi, A
- Zimmermann, MB
- Zinovjev, G
- Zurlo, N
- et al.
Published Web Location
https://doi.org/10.1016/j.physletb.2019.134905Abstract
© 2019 The Author An improved value for the lifetime of the (anti-)hypertriton has been obtained using the data sample of Pb–Pb collisions at sNN=5.02 TeV collected by the ALICE experiment at the LHC. The (anti-)hypertriton has been reconstructed via its charged two-body mesonic decay channel and the lifetime has been determined from an exponential fit to the dN/d(ct) spectrum. The measured value, τ=242−38+34 (stat.) ± 17 (syst.) ps, is compatible with representative theoretical predictions, thus contributing to the solution of the longstanding hypertriton lifetime puzzle.