Two-photon exchange correction to muon–proton elastic scattering at low momentum transfer

Two-photon exchange correction to muon–proton elastic scattering at low momentum transfer
复制标题

低动量传递下μ质子弹性散射的双光子交换校正

DOI:
10.1140/epjc/s10052-016-3966-3
复制
发表时间:
2016
期刊:
The European Physical Journal C
影响因子:
--
通讯作者:
M. Vanderhaeghen
M. Vanderhaeghen
中科院分区:
--
文献类型:
--
作者:
O. Tomalak;M. Vanderhaeghen

文献摘要

参考文献

被引文献

相似文献

我们评估了小动量传递时对μ子-质子弹性散射的双光子交换(TPE)校正。除了精确计算的弹性(核子)中间态贡献之外,我们还通过前向双虚康普顿散射近似表达 TPE 过程来解释非弹性中间态。我们评估中的输入由非极化质子结构函数和一个减法函数给出。对于后者,我们提供了基于高能质子结构函数数据的 Regge 拟合的显式评估。研究发现,对于即将发布的MUSE实验的μ子-质子弹性散射数据的运动学,弹性TPE贡献占主导地位,非弹性TPE贡献的大小在即将发布的数据的预期误差范围内。
We evaluate the two-photon exchange (TPE) correction to the muon–proton elastic scattering at small momentum transfer. Besides the elastic (nucleon) intermediate state contribution, which is calculated exactly, we account for the inelastic intermediate states by expressing the TPE process approximately through the forward doubly virtual Compton scattering. The input in our evaluation is given by the unpolarized proton structure functions and by one subtraction function. For the latter, we provide an explicit evaluation based on a Regge fit of high-energy proton structure function data. It is found that, for the kinematics of the forthcoming muon–proton elastic scattering data of the MUSE experiment, the elastic TPE contribution dominates, and the size of the inelastic TPE contributions is within the anticipated error of the forthcoming data.
DOI: 10.1103/physrevc.81.055213
发表时间: 2007-12
期刊: Physical Review C
影响因子: 3.1
作者:
M. Christy;P. Bosted
通讯作者: M. Christy;P. Bosted
质子极化率贡献:μ子氢兰姆位移和弹性散射
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者:
G. Miller
通讯作者: G. Miller
DOI: 10.1103/physrevc.90.015206
发表时间: 2014-07-29
期刊: PHYSICAL REVIEW C
影响因子: 3.1
作者:
Bernauer, J. C.;Distler, M. O.;Weinriefer, M.
通讯作者: Weinriefer, M.
DOI: 10.1140/epjc/s10052-015-3791-0
发表时间: 2015
期刊: The European Physical Journal C
影响因子: --
作者:
V. Lensky;J. McGovern;V. Pascalutsa
通讯作者: V. Pascalutsa
DOI: 10.1103/physrevd.1.1432
发表时间: 1968
影响因子: 8.6
作者:
Robert W. Brown
通讯作者: Robert W. Brown