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  1. Pubblicazioni

Measurement of e+e- → Λ Λ ¯ η from 3.5106 to 4.6988 GeV and study of Λ Λ ¯ mass threshold enhancement

Articolo
Data di Pubblicazione:
2023
Abstract:
Using data samples with a total integrated luminosity of approximately 18 fb-1 collected by the BESIII detector operating at the Beijing Electron-Positron Collider II, the process e+e- & RARR; A over bar A & eta; is studied at center-of-mass energies between 3.5106 and 4.6988 GeV. The Born cross section for the process e+e-& RARR; A over bar A & eta; is measured. No significant structure is observed in the Born cross section line shape. An enhancement near the AA over bar mass threshold is observed for the first time in the process. The structure can be described by an S-wave Breit-Wigner function. Neglecting contribution of excited A states and potential interferences, the mass and width are determined to be (2356 & PLUSMN; 7 & PLUSMN; 15) MeV=c2 and (304 & PLUSMN; 28 & PLUSMN; 54) MeV, respectively, where the first uncertainties are statistical and the second are systematic.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Xu, W; Ablikim, M; Achasov, MN; Adlarson, P; Albrecht, M; Aliberti, R; Amoroso, A; An, MR; An, Q; Bai, Y; Bakina, O; Ferroli, R; Balossino, I; Ban, Y; Batozskaya, V; Becker, D; Begzsuren, K; Berger, N; Bertani, M; Bettoni, D; Bianchi, F; Bianco, E; Bloms, J; Bortone, A; Boyko, I; Briere, RA; Brueggemann, A; Cai, H; Cai, X; Calcaterra, A; Cao, GF; Cao, N; Cetin, SA; Chang, JF; Chang, WL; Che, GR; Chelkov, G; Chen, C; Chen, C; Chen, G; Chen, HS; Chen, ML; Chen, SJ; Chen, SM; Chen, T; Chen, XR; Chen, XT; Chen, YB; Chen, ZJ; Cheng, WS; Choi, SK; Chu, X; Cibinetto, G; Cossio, F; Cui, JJ; Dai, HL; Dai, JP; Dbeyssi, A; de Boer, RE; Dedovich, D; Deng, ZY; Denig, A; Denysenko, I; Destefanis, M; De Mori, F; Ding, Y; Dong, J; Dong, LY; Dong, MY; Dong, X; Du, SX; Duan, ZH; Egorov, P; Fan, YL; Fang, J; Fang, SS; Fang, WX; Fang, Y; Farinelli, R; Fava, L; Feldbauer, F; Felici, G; Feng, CQ; Feng, JH; Fischer, K; Fritsch, M; Fritzsch, C; Fu, CD; Gao, H; Gao, YN; Gao, Y; Garbolino, S; Garzia, I; Ge, PT; Ge, ZW; Geng, C; Gersabeck, EM; Gilman, A; Goetzen, K; Gong, L; Gong, WX; Gradl, W; Greco, M; Gu, LM; Gu, MH; Gu, YT; Guan, CY; Guo, AQ; Guo, LB; Guo, RP; Guo, YP; Guskov, A; Han, WY; Hao, XQ; Harris, FA; He, KK; He, KL; Heinsius, FH; Heinz, CH; Heng, YK; Herold, C; Hou, GY; Hou, YR; Hou, ZL; Hu, HM; Hu, JF; Hu, T; Hu, Y; Huang, GS; Huang, KX; Huang, LQ; Huang, XT; Huang, YP; Huang, Z; Hussain, T; Huesken, N; Imoehl, W; Irshad, M; Jackson, J; Jaeger, S; Janchiv, S; Jang, E; Jeong, JH; Ji, Q; Ji, QP; Ji, XB; Ji, XL; Ji, YY; Jia, ZK; Jiang, PC; Jiang, SS; Jiang, XS; Jiang, Y; Jiao, JB; Jiao, Z; Jin, S; Jin, Y; Jing, MQ; Johansson, T; Kabana, S; Kalantar-Nayestanaki, N; Kang, XL; Kang, XS; Kappert, R; Kavatsyuk, M; Ke, BC; Keshk, IK; Khoukaz, A; Kiuchi, R; Kliemt, R; Koch, L; Kolcu, OB; Kopf, B; Kuemmel, M; Kuessner, M; Kupsc, A; Kühn, W; Lane, JJ; Lange, JS; Larin, P; Lavania, A; Lavezzi, L; Lei, TT; Lei, ZH; Leithoff, H; Lellmann, M; Lenz, T; Li, C; Li, CH; Li, C; Li, DM; Li, F; Li, G; Li, H; Li, HB; Li, HJ; Li, HN; Li, H; Li, JQ; Li, JS; Li, JW; Li, K; Li, LJ; Li, LK; Li, L; Li, MH; Li, PR; Li, SX; Li, SY; Li, T; Li, WD; Li, WG; Li, XH; Li, XL; Li, XY; Li, YG; Li, ZX; Li, ZY; Liang, C; Liang, H; Liang, YF; Liang, YT; Liao, GR; Liao, LZ; Libby, J; Limphirat, A; Lin, DX; Lin, T; Liu, BJ; Liu, C; Liu, CX; Liu, D; Liu, FH; Liu, F; Liu, F; Liu, GM; Liu, H; Liu, HB; Liu, HM; Liu, HH; Liu, HH; Liu, JB; Liu, JL; Liu, JY; Liu, K; Liu, KY; Liu, K; Liu, L; Liu, LC; Liu, L; Liu, MH; Liu, PL; Liu, Q; Liu, SB; Liu, T; Liu, WK; Liu, WM; Liu, X; Liu, Y; Liu, YB; Liu, ZA; Liu, ZQ; Lou, XC; Lu, FX; Lu, HJ; Lu, JG; Lu, XL; Lu, Y; Lu, YP; Lu, ZH; Luo, CL; Luo, MX; Luo, T; Luo, XL; Lyu, XR; Lyu, YF; Ma, FC; Ma, HL; Ma, LL; Ma, MM; Ma, QM; Ma, RQ; Ma, RT; Ma, XY; Ma, Y; Maas, FE; Maggiora, M; Maldaner, S; Malde, S; Malik, QA; Mangoni, A; Mao, YJ; Mao, ZP; Marcello, S; Meng, ZX; Messehendorp, JG; Mezzadri, G; Miao, H; Min, TJ; Mitchell, RE; Mo, XH; Muchnoi, NY; Nefedov, Y; Nerling, F; Nikolaev, IB; Ning, Z; Nisar, S; Niu, Y; Olsen, SL; Ouyang, Q; Pacetti, S; Pan, X; Pan, Y; Pathak, A; Pei, YP; Pelizaeus, M; Peng, HP; Peters, K; Ping, JL; Ping, RG; Plura, S; Pogodin, S; Prasad, V; Qi, FZ; Qi, H; Qi, HR; Qi, M; Qi, TY; Qian, S; Qian, WB; Qian, Z; Qiao, CF; Qin, JJ; Qin, LQ; Qin, XP; Qin, XS; Qin, ZH; Qiu, JF; Qu, SQ; Rashid, KH; Redmer, CF; Ren, KJ; Rivetti, A; Rodin, V; Rolo, M; Rong, G; Rosner, C; Ruan, SN; Sarantsev, A; Schelhaas, Y; Schnier, C; Schoenning, K; Scodeggio, M; Shan, KY; Shan, W; Shan, XY; Shangguan, JF; Shao, LG; Shao, M; Shen, CP; Shen, HF; Shen, WH; Shen, XY; Shi, BA; Shi, HC; Shi, JY; Shi, QQ; Shi, RS; Shi, X; Song, JJ; Song, WM; Song, YX; Sosio, S; Spataro, S; Stieler, F; Su, PP; Su, YJ; Sun, GX; Sun, H; Sun, HK; Sun, JF; Sun, L; Sun, SS; Sun, T; Sun, WY; Sun, YJ; Sun, YZ; Sun, ZT; Tan, YX; Tang, CJ; Tang, GY; Tang, J; Tang, YA; Tao, LY; Tao, QT; Tat, M; Teng, JX; Thoren, V; Tian, WH; Tian, Y; Uman,
Autori di Ateneo:
AMOROSO Antonio
BIANCHI Fabrizio Umberto
DE MORI Francesca
DESTEFANIS Marco Giovanni Maria
GRECO Michela
MAGGIORA Marco
MARCELLO Simonetta
SPATARO Stefano Giovanni
Link alla scheda completa:
https://iris.unito.it/handle/2318/1946267
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1946267/1215689/PhysRevD.107.112001.pdf
Pubblicato in:
PHYSICAL REVIEW D
Journal
  • Aree Di Ricerca

Aree Di Ricerca

Settori (7)


PE2_2 - Phenomenology of fundamental interactions - (2022)

PE2_3 - Experimental particle physics with accelerators - (2022)

PE2_6 - Nuclear, hadron and heavy ion physics - (2022)

CULTURA, ARTE e CREATIVITA' - Fisica e Beni Culturali

SCIENZE MATEMATICHE, CHIMICHE, FISICHE - Cosmologia e Universo

SCIENZE MATEMATICHE, CHIMICHE, FISICHE - Fisica delle Particelle e dei Nuclei

SCIENZE MATEMATICHE, CHIMICHE, FISICHE - Laboratori innovativi, strumentazione e modellizzazione fisica
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