Forward-backward charge asymmetry in e+e- annihilation into hadrons at high energies -: art. no. 014017

被引:3
|
作者
Ermolaev, BI
Greco, M
Troyan, SI
机构
[1] Univ Lisbon, CFTC, P-1649003 Lisbon, Portugal
[2] Univ Roma Tre, Dipartimento Fis, Rome, Italy
[3] Univ Roma Tre, Ist Nazl Fis Nucl, Rome, Italy
[4] St Petersburg Inst Nucl Phys, Gatchina 188300, Russia
[5] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
关键词
D O I
10.1103/PhysRevD.67.014017
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The forward-backward asymmetry in e(+)e(-) annihilation into a quark-antiquark pair is considered in the double-logarithmic approximation at energies much higher than the masses of the weak bosons. It is shown that after accounting for the exchange of virtual photons and W,Z bosons to all orders one is led to the following effect (asymmetry): quarks with positive electric charge (e.g., u, (d) over bar) tend to move in the e(+) direction whereas quarks with negative charges (e.g., d, (u) over bar) tend to move in the e(-) direction. The value of the asymmetry grows with increasing energy when the produced quarks are within a cone with an opening angle, in the center of mass frame, theta(0)similar to2M(Z)/roots around the e(+)e(-) beam. Outside this cone, at theta(0)<<theta<<1, the asymmetry is inversely proportional to theta.
引用
收藏
页数:12
相关论文
共 50 条
  • [1] Radiative corrections to the forward-backward asymmetry in e+e- → π+π-
    Colangelo, Gilberto
    Hoferichter, Martin
    Monnard, Joachim
    Ruiz de Elvira, Jacobo
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2022, 2022 (08)
  • [2] Production of electroweak bosons in e+e- annihilation at high energies -: art. no. 114018
    Ermolaev, BI
    Oliveira, SM
    Troyan, SI
    [J]. PHYSICAL REVIEW D, 2002, 66 (11)
  • [3] THE CONVOLUTION INTEGRAL FOR THE FORWARD BACKWARD ASYMMETRY IN E+E- ANNIHILATION
    BARDIN, D
    BILENKY, M
    CHIZHOV, A
    SAZONOV, A
    SEDYKH, Y
    RIEMANN, T
    SACHWITZ, M
    [J]. PHYSICS LETTERS B, 1989, 229 (04) : 405 - 408
  • [4] FORWARD-BACKWARD ASYMMETRY IN E+E- ANNIHILATION AS A PROBE OF NEW PHYSICS FROM E6 THEORIES
    RIZZO, TG
    [J]. PHYSICAL REVIEW D, 1986, 34 (09): : 2699 - 2703
  • [6] FORWARD-BACKWARD CHARGE ASYMMETRY OF QUARK PAIRS PRODUCED AT THE KEK TRISTAN E+E- COLLIDER
    STUART, D
    BREEDON, RE
    CHINITZ, LM
    KO, W
    LANDER, RL
    ROWE, J
    SMITH, JR
    KIRK, P
    CHENG, CP
    GAO, WX
    YAN, WG
    YE, MH
    ABASHIAN, A
    GOTOW, K
    HAIM, D
    MATTSON, ME
    MORGAN, N
    PIILONEN, L
    STERNER, KL
    LUSIN, S
    ROSENFELD, C
    WANG, ATM
    WILSON, S
    ZHENG, LY
    FRY, CA
    TANAKA, R
    ABE, K
    FUJII, Y
    KURIHARA, Y
    LIU, F
    MAKI, A
    NOZAKI, T
    OMORI, T
    SAGAWA, H
    SAKAI, Y
    SASAKI, T
    SUGIMOTO, Y
    TAKAIWA, Y
    TERADA, S
    WALKER, R
    KANDA, S
    OLSEN, SL
    UENO, K
    KAJINO, F
    POLING, R
    THOMAS, T
    ASO, T
    MIYANO, K
    MIYATA, H
    OYOSHI, M
    [J]. PHYSICAL REVIEW D, 1994, 49 (07): : 3098 - 3105
  • [7] Spin structure and longitudinal polarization of a hyperon in e+e- annihilation at high energies -: art. no. 094001
    Lium, CX
    Liang, ZT
    [J]. PHYSICAL REVIEW D, 2000, 62 (09) : 1 - 9
  • [8] Forward-backward charge asymmetry in e+e - -> hadron jets
    [J]. 1600, American Physical Society, Melville, United States (64):
  • [9] Top Quark Forward-Backward Asymmetry in e+e- Annihilation at Next-to-Next-to-Leading Order in QCD
    Gao, Jun
    Zhu, Hua Xing
    [J]. PHYSICAL REVIEW LETTERS, 2014, 113 (26)
  • [10] LIMITS ON LEPTON-QUARK CONTACT INTERACTIONS FROM THE QUARK FORWARD-BACKWARD ASYMMETRY IN E+E- ANNIHILATION
    HAGIWARA, K
    SAKUDA, M
    TERUNUMA, N
    [J]. PHYSICS LETTERS B, 1989, 219 (2-3) : 369 - 374