WASHINGTON — The White House said today it does not expect President Reagan's talks with Soviet leader Mikhail S. Gorbachev to produce an arms-control breakthrough that would warrant extending their summit meeting.
Reagan and Gorbachev are scheduled to meet for three days next week to sign a treaty eliminating intermediate-range nuclear missiles and to hold discussions on how to achieve a 50% reduction in strategic nuclear weapons, the most menacing arms in the superpowers' arsenals.
Georgi A. Arbatov, a senior adviser to Gorbachev, said last week that Gorbachev would stay an extra day or two in Washington if it appeared success was likely on an agreement to reduce nuclear missile stockpiles.
"We have no indication of that; certainly they have not told us anything about it," presidential spokesman Marlin Fitzwater said today. He added, "We frankly don't anticipate it."