First Study of Antihyperon-Nucleon Scattering (Λ)over-barp → (Λ)over-barp and Measurement of Λp → Λp Cross Section

被引：2

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[4
,89
]}

Adlarson, P. ^{[82
]}

Afedulidis, O. ^{[3
]}

Ai, X. C. ^{[87
]}

Aliberti, R. ^{[38
]}

Amoroso, A. ^{[78
,79
,81
]}

An, Q. ^{[61
,75
]}

Bai, Y. ^{[60
]}

Bakina, O. ^{[39
]}

Balossino, I ^{[31
]}

Ban, Y. ^{[49
,97
]}

Bao, H-R ^{[67
]}

Batozskaya, V ^{[1
,47
]}

Begzsuren, K. ^{[35
]}

Berger, N. ^{[38
]}

Berlowski, M. ^{[47
]}

Bertani, M. ^{[28
]}

Bettoni, D. ^{[31
]}

Bianchi, F. ^{[78
,79
,81
]}

Bianco, E. ^{[78
,79
,81
]}

Bortone, A. ^{[78
,79
,81
]}

Boyko, I ^{[39
]}

Briere, R. A. ^{[5
]}

Brueggemann, A. ^{[72
]}

Cai, H. ^{[83
]}

Cai, X. ^{[1
,61
]}

Calcaterra, A. ^{[28
]}

Cao, G. F. ^{[1
,67
]}

Cao, N. ^{[1
,67
]}

Cetin, S. A. ^{[65
]}

Chang, J. F. ^{[1
,61
]}

Che, G. R. ^{[46
]}

Chelkov, G. ^{[39
,88
]}

Chen, C. ^{[4
,46
]}

Chen, C. H. ^{[9
]}

Chen, Chao ^{[58
]}

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,67
]}

Chen, H. Y. ^{[20
]}

Chen, M. L. ^{[1
,61
,67
]}

Chen, S. J. ^{[45
]}

Chen, S. L. ^{[48
]}

Chen, S. M. ^{[64
]}

Chen, T. ^{[1
,67
]}

Chen, X. R. ^{[34
,67
]}

Chen, X. T. ^{[1
,67
]}

Chen, Y. B. ^{[1
,61
]}

Chen, Y. Q. ^{[37
]}

Chen, Z. J. ^{[25
,98
]}

机构：

[1] Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Beihang Univ, Beijing 100191, Peoples R China

[3] Bochum Ruhr Univ, D-44780 Bochum, Germany

[4] RAS, SB, Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[5] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[6] Cent China Normal Univ, Wuhan 430079, Peoples R China

[7] Cent South Univ, Changsha 410083, Peoples R China

[8] China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China

[9] China Univ Geosci, Wuhan 430074, Peoples R China

[10] Chung Ang Univ, Seoul 06974, South Korea

[11] COMSATS Univ Islamabad, Lahore Campus,Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan

[12] Fudan Univ, Shanghai 200433, Peoples R China

[13] GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany

[14] Guangxi Normal Univ, Guilin 541004, Peoples R China

[15] Guangxi Univ, Nanning 530004, Peoples R China

[16] Hangzhou Normal Univ, Hangzhou 310036, Peoples R China

[17] Hebei Univ, Baoding 071002, Peoples R China

[18] Helmholtz Inst Mainz, Staudinger Weg 18, D-55099 Mainz, Germany

[19] Henan Normal Univ, Xinxiang 453007, Peoples R China

[20] Henan Univ, Kaifeng 475004, Peoples R China

[21] Henan Univ Sci & Technol, Luoyang 471003, Peoples R China

[22] Henan Univ Technol, Zhengzhou 450001, Peoples R China

[23] Huangshan Coll, Huangshan 245000, Peoples R China

[24] Hunan Normal Univ, Changsha 410081, Peoples R China

[25] Hunan Univ, Changsha 410082, Hunan, Peoples R China

[26] Indian Inst Technol Madras, Chennai 600036, India

[27] Indiana Univ, Bloomington, IN 47405 USA

[28] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[29] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-06100 Perugia, Italy

[30] Univ Perugia, Lab Nazl Frascati, Ist Nazl Fis Nucl, I-06100 Perugia, Italy

[31] Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy

[32] Univ Ferrara, Sez Ferrara, Ist Nazl Fis Nucl, I-44122 Ferrara, Italy

[33] Inner Mongolia Univ, Hohhot 010021, Peoples R China

[34] Inst Modern Phys, Lanzhou 730000, Peoples R China

[35] Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongolia

[36] Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica 1000000, Chile

[37] Jilin Univ, Changchun 130012, Peoples R China

[38] Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany

[39] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[40] Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany

[41] Lanzhou Univ, Lanzhou 730000, Peoples R China

[42] Liaoning Normal Univ, Dalian 116029, Peoples R China

[43] Liaoning Univ, Shenyang 110036, Peoples R China

[44] Nanjing Normal Univ, Nanjing 210023, Peoples R China

[45] Nanjing Univ, Nanjing 210093, Peoples R China

[46] Nankai Univ, Tianjin 300071, Peoples R China

[47] Natl Ctr Nucl Res, PL-02093 Warsaw, Poland

[48] North China Elect Power Univ, Beijing 102206, Peoples R China

[49] Peking Univ, Beijing 100871, Peoples R China

[50] Qufu Normal Univ, Qufu 273165, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 23期

基金：

瑞典研究理事会; 新加坡国家研究基金会;

关键词：

PROTON ELASTIC-SCATTERING; HYPERONS; PHYSICS; AP;

D O I：

10.1103/PhysRevLett.132.231902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using (10.087 +/- 0.044) x 10(9) J/psi events collected with the BESIII detector at the BEPCII storage ring, the processes Lambda p -> Lambda p and (Lambda) over barp -> (Lambda) over barp are studied, where the Lambda/(Lambda) over bar baryons are produced in the process J/psi -> Lambda(Lambda) over bar and the protons are the hydrogen nuclei in the cooling oil of the beam pipe. Clear signals are observed for the two reactions. The cross sections in -0.9 <= cos theta(Lambda/(Lambda) over bar) <= 0.9 are measured to be sigma(Lambda p -> Lambda p) = (12.2 +/- 1.6(stat) +/- 1.1(syst)) and sigma((Lambda) over barp -> (Lambda) over barp) = (17.5 +/- 2.1(stat) +/- 1.6(syst)) mb at the Lambda/(Lambda) over bar momentum of 1.074 GeV/c within a range of +/- 0.017 GeV/c, where the theta(Lambda/(Lambda) over bar) are the scattering angles of the Lambda/(Lambda) over bar in the Lambda p/(Lambda) over barp rest frames. Furthermore, the differential cross sections of the two reactions are also measured, where there is a slight tendency of forward scattering for Lambda p -> Lambda p, and a strong forward peak for (Lambda) over barp -> (Lambda) over barp. We present an approach to extract the total elastic cross sections by extrapolation. The study of (Lambda) over barp -> (Lambda) over barp represents the first study of antihyperon-nucleon scattering, and these new measurements will serve as important inputs for the theoretical understanding of the (anti)hyperon-nucleon interaction.

引用

页数：10

共 50 条

[1] Amplitudes in pp and (p)over-barp scattering
Ferreira, Erasmo
Pereira, Flavio
INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 2007, 16 (09) : 2889 - 2892
[2] Study of (p)over-barp annihilation at rest into ωπ+π-π°
McCrady, RC
HADRON SPECTROSCOPY, 1998, (432): : 331 - 334
[3] Parity nonconservation in elastic (p)over-barp scattering
Liu, C. -P.
Hyun, C. H.
Desplanques, B.
PHYSICAL REVIEW C, 2006, 73 (06):
[4] pp and (p)over-barp total cross sections and elastic scattering
Donnachie, A.
Landshoff, P. V.
PHYSICS LETTERS B, 2013, 727 (4-5) : 500 - 505
[5] Study of (n)over-barp → φπ+ and (n)over-barp → ωπ+ annihilation reactions in flight
Filippi, A
Agnello, M
Balestra, F
Bergo, D
Botta, E
Bressani, T
Bussa, MP
Busso, L
Calvo, D
Cerello, P
Costa, S
Denisov, O
Fanara, C
Feliciello, A
Ferrero, L
Garfagnini, R
Grasso, A
Iazzi, F
Maggiora, A
Marcello, S
Minetti, B
Mirfakhraee, N
Panzarasa, A
Panzieri, D
Raimondo, A
Tosello, F
Valacca, L
Zosi, G
Alberico, V
Bertin, A
Bruschi, M
Capponi, M
De Castro, S
Donà, R
Ferretti, A
Galli, D
Giacobbe, B
Marconi, U
Piccinini, M
Poli, M
Cesari, NS
Spighi, R
Vagnoni, V
Vecchi, S
Vigotti, F
Villa, M
Vitale, A
Zoccoli, A
Corradini, M
Donzella, A
NUCLEAR PHYSICS A, 1999, 655 (3-4) : 453 - 494
[6] Study of (p)over-barp → ηηπ0π0 in flight
Anisovich, AV
Baker, CA
Batty, CJ
Bugg, DV
Nikonov, VA
Sarantsev, AV
Sarantsev, VV
Zou, BS
PHYSICS LETTERS B, 2001, 500 (3-4) : 222 - 231
[7] Charmonium spectroscopy in (p)over-barp annihilations
Patrignani, C
Armstrong, T
Bettoni, D
Bharadwaj, V
Biino, C
Borreani, G
Broemmelsiek, D
Buzzo, A
Calabrese, R
Ceccucci, A
Cester, R
Church, M
Dalpiaz, P
Dalpiaz, PF
Dimitroyannis, D
Fabbri, M
Fast, J
Gianoli, A
Ginsburg, CM
Gollwitzer, K
Hahn, A
Hasan, M
Hsueh, S
Lewis, R
Luppi, E
Macri, M
Majewska, AM
Mandelkern, M
Marchetto, F
Marinelli, M
Marques, J
Marsh, W
Martini, M
Masuzawa, M
Menichetti, E
Migliori, A
Mussa, R
Palestini, S
Pallavicini, M
Passaggio, S
Pastrone, N
Peoples, J
Pesando, L
Petrucci, F
Pia, MG
Pordes, S
Rapidis, P
Ray, R
Reid, J
Rinaudo, G
NUCLEAR PHYSICS B, 1996, : 196 - 201
[8] BOTTOMONIUM PRODUCTION IN (P)OVER-BARP ANNIHILATION
IOFFE, BL
PHYSICAL REVIEW D, 1993, 47 (01): : 340 - 342
[9] (p)over-barp and pp elastic scattering at high energies
Zhou Li-Juan
Ma Wei-Xing
COMMUNICATIONS IN THEORETICAL PHYSICS, 2007, 48 (03) : 541 - 544
[10] Study of the polarization degree for the (p)over-barp → ppη measurement with WASA
Ozerianska, I.
Moskal, P.
Hodana, M.
HYPERFINE INTERACTIONS, 2014, 229 (1-3): : 85 - 87

← 1 2 3 4 5 →