SearcharxivSearch

arXiv subjects

Anton Babaev

Publications and source records attributed to Anton Babaev.

2 recordsLinked to original sources

Modeling of van-der-Meer scan at NICA

Van-der-Meer method is used in hadron colliders for absolute luminosity calibration. In the letter the applicability of the method is discussed when particles desnsity is distorted by hour-glass effect next to interaction point. The study is motivated by close commisioning of Nuclotron based Ion Collider fAcility where hour-glass effected is significant by design. The theoretical van-der-Meer formalism is revised for this case. Importance of hour-glass effect for luminosity measurements and calibration is demonstrated. Also, the general approach to the estimation of van-der-Meer method bias when it is used for non-factorizable beams is proposed.

physics.acc-ph

Coherent deflection of elliptic bunches colliding at crossing angle

The coherent deflection of charged particles bunch in the field of an counter-propagating bunch is considered. Bunches collide at non-zero crossing angle and they have different energies. Charge distributions in both colliding bunches are Gaussian. The generalization of Bassetti-Erskine formalism for bunch deflection and orbit shift is derived. Applications in collider physics are discussed.

physics.acc-ph