- Main
HΛ3 and H‾Λ‾3 lifetime measurement in Pb–Pb collisions at sNN=5.02 TeV via two-body decay
- 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
- et al.
Published Web Location
https://doi.org/10.1016/j.physletb.2019.134905Abstract
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.
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