Better angle on hadron transverse momentum distributions at the Electron-Ion Collider

被引：4

作者：

Gao, Anjie ^{[1
]}

Michel, Johannes K. L. ^{[1
]}

Stewart, Iain W. ^{[1
]}

Sun, Zhiquan ^{[1
]}

机构：

[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 09期

关键词：

ASYMMETRIES;

D O I：

10.1103/PhysRevD.107.L091504

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose an observable q* sensitive to transverse momentum dependence (TMD) in eN -> ehX, with q*=EN defined purely by lab-frame angles. In 3D measurements of confinement and hadronization this resolves the crippling issue of accurately reconstructing small transverse momentum PhT. We prove factorization for d sigma h=dq* for q* MUCH LESS-THAN Q with standard TMD functions, enabling q* to substitute for PhT. A double-angle reconstruction method is given which is exact to all orders in QCD for q* MUCH LESS-THAN Q. q* enables an order-of-magnitude improvement in the expected experimental resolution at the EIC.

引用

页数：7

共 50 条

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